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HP LaserJet 5000gn User's Manual

1. Eg Fuser heater l rr j Terminal BC controler PCA heavar g FSRDRV1 FSRDAV2 detection circuit aa aa a 2 control circuit Excessvoltage excesscurrent detection circuit Figure 5 2 Low Voltage Power Supply Circuit Fan motor 4 i 1 L l aser scanner unit j solenoids clutches If a short circuit or other problems on the load side cause an excessive current flow from the 24 VDC or 3 4 VDC power supplies or generate abnormal voltage the excess current protection system and excess voltage protection system automatically shut off the output voltage to protect the power supplies If an excess current or excess voltage protection system is activated and the power supply circuit does not output DC voltage it is necessary to turn the power off correct the problem in the faulty load then turn the printer on again The circuit has two fuses which break and cut off the output voltage if excess current flows through the AC line 5 4 Functional Information EN EN Overcurrent Overvoltage Protection This circuit located on the DC controller PCA always monitors an abnormal rise of the fusing roller temperature If an error occurs this circuit outputs a signal to turn the relay RL1 off and interrupt the power to the fusing roller heater The circuit operates as follows When the fusing roller heater temperat
2. Direction to Orient Shaft EN Removing Assemblies 6 55 Tray 1 Lift Plate 1 Remove the Front Cover page 6 18 Tray 1 Shaft page 6 52 Top Cover page 6 12 Left and Right Side Covers page 6 23 2 Rotate the Tray 1 Lift Plate until the opening of the hook faces up Then press down on each hook until it slips off the shaft on which it is mounted When you remove the Lift Plate be careful not to lose the spring as it is not captive Figure 6 45 Tray 1 Lift Plate Item Explanation Spring B Tray 1 Lift Plate C Hooks D Paper Sensor Flag Slot 6 56 Removing and Replacing Parts EN Figure 6 46 EN Tray 1 Separation Pad 1 Rotate the Separation Pad 90 toward you so that it is oriented up 2 Lift the assembly out of the slots Be sure not to lose the spring which is not captive Tray 1 Separation Pad Removing Assemblies 6 57 Paper Guide 1 Liftthe green handle in the middle of the Registration Assembly 2 Release the Guide by freeing the end pins and the clips in the middle then lift the Paper Guide out Figure 6 47 Paper Guide Item Explanation A Green Handles B Paper Guide C End Pins 6 58 Removing and Replacing Parts EN Paper Path Detect Sensor 1 Remove the Paper Tray Remove the Top Cover page 6 12 Left Side Cover page 6 23 Pickup Gear Assembly page 6 36 and Paper Handling PCA page 6 31 Remove the two
3. Does the display and displaying a YES indicate any of the YES following READY OFFLINE POWERSAVE ON A Show Event Log to display information on current error and correct it B After correcting all messages and errors Go to Step 3 Event Log Have you evaluated the Event Log A For paper jams encountered during attempts to print Event Log see General Paper Path Troubleshooting B Print and evaluate the Event Log c After evaluating the Event Log go to Step 4 EN Information Pages Will it print a configuration A Show Event Log to display information on the current error and correct it B Verifiy information on the Configuration Page C After verifying Configuration Page go to Step 5 Image Quality Does the print quality meet customer requirements A Compare Configuration Pages to samples B Perform corrective actions Cc After meeting print quality requirements go to Step 6 Troubleshooting Process 7 5 A Run a print job from the host system B Perform corrective actions Troubleshooting the Printing System Preliminary Operating Checks Prior to troubleshooting a specific printer problem you should ensure that e The printer is being maintained on a regular basis as described in Chapter 4 e The customer is using acceptable paper as specified in the HP LaserJet Printer Family Paper S
4. Screw M4x8 Truss Head Tapping XB4 7400 807CN Table 8 2 on page 8 6 Screw Mach Truss Head M4x10 XB4 2300 407CN Table 8 22 on page 8 39 Screw with Spring RF5 2418 000CN Table 8 2 on page 8 6 Sensor Cable RG5 3523 000CN Table 8 14 on page 8 27 Sensor Flag Lever RB2 1807 000CN Table 8 14 on page 8 27 Sensor Flag Spring Sensor Lever Sensor Mount Rear of Controller Pan RB2 1808 000CN RB2 1791 000CN RB2 1790 000CN Table 8 14 on page 8 27 Table 8 20 on page 8 36 Table 8 20 on page 8 36 Separation Pad Spring RF5 3585 000CN Table 8 16 on page 8 31 Shutter Lever Small Paper Feed Belts Spring RB2 1738 000CN RB2 1888 000CN RS5 2434 000CN Table 8 8 on page 8 17 Table 8 13 on page 8 25 Table 8 8 on page 8 17 EN Illustrations and Parts Lists 8 45 Description Part Number Table Number and Page Static Charge Eliminator RB2 1981 000CN Table 8 11 on page 8 22 Switch Rod RB2 1731 000CN Table 8 8 on page 8 17 Tension Spring 500 sheet Feeder RF5 2632 000CN Table 8 23 on page 8 41 Toner Cartridge Door Assembly RG5 3556 000CN Table 8 6 on page 8 12 Toner Cartridge Engagement Arm RB2 1856 000CN Table 8 17 on page 8 33 Transfer Guide Assembly RG5 3525 000CN Table 8 9 on page 8 19 Transfer Roller Assembly RG5 3579 000CN Table 8 10 on page 8 21 Transfer Roller Bushing left
5. 2 Release the E ring on the Registration Assembly Clutch and remove the Clutch Figure 6 34 on page 6 43 3 Remove the two common machine screws in the top middle of the printer These screws are already removed if you have removed the Paper Feed Roller Assembly They are common between the Paper Feed Roller Assembly and the Registration Assembly Refer to page 6 44 for screw location 4 Remove the four self tapping screws inside the chassis Lift up the small green handle of the Registration Assembly to access two of these screws 5 Liftthe Registration assembly out of the chassis Figure 6 52 Registration Assembly Item Explanation A Screw location EN Removing Assemblies 6 63 Figure 6 53 Registration Assembly Clutch Item Explanation A Flat B Alignment Tab C Stabilizer Hint When reinstalling the clutch orient the shaft with the flat spot up When the clutch slides on the slotted metal alignment tab will seat onto a plastic stabilizer Make sure that the cable is situated away from the Registration Assembly before you reinstall the Assembly 6 64 Removing and Replacing Parts EN Upper Delivery Assembly 1 Remove the Top Cover page 6 12 Rear Door Rear Output Bin page 6 10 and Left and Right Side Covers page 6 23 Main Gear Assembly page 6 34 Figure 6 54 Upper Delivery Assembly rear left view of printer Item Explanation A Upper
6. 500 sheet Feeder Figure 8 20 EN 8 40 Parts and Diagrams Table 8 23 500 sheet Feeder Item No Part No Quantity Description 1 RG5 4213 000CN 1 Upper Contact Cable 2 RG5 4211 000CN 1 Feeder Controller PCA Assembly 3 XB4 7300 807CN 2 M3x8 Screw Tapping Truss Head RF5 2632 000CN Tension Spring RF5 2635 000CN 4 RF5 2633 000CN 1 Tray Sensor Assembly 5 RF5 2634 000CN 1 Feed Roller 6 RB1 8877 000CN 1 Joint 7 RF5 2636 000CN 1 Pickup Roller 8 9 Paper Arm EN Illustrations and Parts Lists 8 41 Alphabetical Parts List Description Part Number Table Number and Page 250 sheet Universal Paper Tray C4116A Table 8 16 on page 8 31 Cable Fuser AC RG5 356 1 O00CN Table 8 10 on page 8 21 Cable Scanner RG5 3562 000CN Table 8 10 on page 8 21 Cable Display Accessory Power Photo Sensor Cable Paper Sensor RG5 3557 000CN RG5 3554 000CN Figure 8 4 on page 8 14 Figure 8 4 on page 8 14 Cable Paper Sensor Cable Ribbon from Paper PCA to Controller RG5 3558 000CN RH2 5338 000CN Figure 8 4 on page 8 14 Figure 8 4 on page 8 14 Cam Left RB2 1796 000CN Table 8 8 on page 8 17 Cam Right RB2 1797 000CN Table 8 8 on page 8 17 Cartridge Guide Left RB2 1774 000CN Table 8 8 on page 8 17 Cartridge Guide Right RB2 1775 000CN Table 8 8 on page 8 17 Cleaning Brush RB2 1
7. 5 10 Functional Information EN EN The Scanner Motor is controlled and monitored by the DC Controller Board It rotates the scanner mirror during the Initial Rotation period and the print period The fan motor is a two phase four pole DC brushless motor containing a hall element and forms a unit along with the motor drive circuit When the printer turns on the CPU IC301 on the DC controller PCA makes pin 99 HALFFAN H and runs the fan motor half a turn The CPU controls the half speed full speed rotations according to the target fixing roller temperature when the CPU receives the PRNT signal from the video controller PCA When the fixing unit warms up sufficiently it makes pin 99 HALFFAN H to set the fan drive voltage FANON to the voltage level to run the fan motor at full speed If the printing ends the fan motor is run at full speed for 30 seconds after the main motor stops then the fan motor runs at half speed Power Supply System 5 11 Formatter System The Formatter PCA is responsible for the following Controlling the PowerSave mode e Receiving and processing print data from the various printer interfaces Monitoring Control Panel inputs and relaying printer status information through the Control Panel and the Bidirectional I O e Developing and coordinating data placement and timing with the print engine Storing font information Communicating with the host computer through
8. Right Mount 500 sheet Feeder Table 8 22 on page 8 39 RB2 3213 000CN RB2 3235 000CN Inner Cover 500 sheet Feeder Front Cover 500 sheet Feeder Table 8 22 on page 8 39 Table 8 22 on page 8 39 RB2 3236 000CN Right Auxiliary Cover 500 sheet Feeder Table 8 22 on page 8 39 RB2 3237 000CN Left Auxiliary Cover 500 sheet Feeder Table 8 22 on page 8 39 RB2 3238 000CN Right Cover 500 sheet Feeder Table 8 22 on page 8 39 RB2 3239 000CN Left Cover 500 sheet Feeder Table 8 22 on page 8 39 RB2 3247 000CN Tray Cover 500 sheet Feeder Table 8 22 on page 8 39 RB2 3262 000CN Return Cover 500 sheet Feeder Figure 6 70 on page 6 81 RB2 3284 000CN Leaf Spring 500 sheet Feeder Table 8 22 on page 8 39 RB2 3286 000CN Leaf Spring 500 sheet Feeder Table 8 22 on page 8 39 RF5 2397 000CN Tray 2 Rail Left Table 8 8 on page 8 17 RF5 2398 000CN Tray 2 Rail Right Table 8 8 on page 8 17 RF5 2399 000CN Pad Assembly Table 8 9 on page 8 19 RF5 2415 000CN Delivery Guide Table 8 11 on page 8 22 RF5 2418 000CN Screw with Spring Table 8 2 on page 8 6 RF5 2632 000CN Tension Spring 500 sheet Feeder Table 8 23 on page 8 41 RF5 2633 000CN Tray Sensor Assembly 500 sheet Feeder Table 8 23 on page 8 41 RF5 2635 000CN Paper Arm Table 8 23 on page 8 41 RF5 2636 000CN Pickup Roller 500 sheet
9. Table 8 11 on page 8 22 Right Bushing Lower Delivery Roller RB2 1988 000CN Table 8 7 on page 8 14 Right Corner Cover RB2 1755 000CN Table 8 5 on page 8 10 Right Cover 500 sheet Feeder RB2 3238 000CN Table 8 22 on page 8 39 Right Latch Block RB2 1991 000CN Table 8 5 on page 8 10 Right Latch Plate RB2 1975 000CN Table 8 5 on page 8 10 Right Mount RB2 3211 000CN Table 8 22 on page 8 39 Right Pickup Roller Bushing Right Pickup Roller Collar RB2 1804 000CN RB2 1803 000CN Table 8 12 on page 8 23 Table 8 12 on page 8 23 Right Roller Cam RB2 1805 000CN Table 8 12 on page 8 23 Right Side Cover Assembly Roller Holder Roller Mount 1 Roller Spring Screw Long DC Controller Screws M3x25 RB2 1749 000CN RB2 1997 000CN RB2 2068 000CN RS5 2225 020CN XA9 0974 000CN Table 8 5 on page 8 10 Table 8 9 on page 8 19 Table 8 9 on page 8 19 Table 8 9 on page 8 19 Table 8 2 on page 8 6 Screw M3x4 TP XA9 0815 000CN Table 8 2 on page 8 6 Screw M3x6 TP XA9 0267 000CN Table 8 2 on page 8 6 Screw M3x8 TP Screw XB6 7300 807CN Table 8 2 on page 8 6 Screw M4x10 Pan Head Tapping XB4 7401 007CN Table 8 2 on page 8 6 Screw M4x16 W Washer XA9 0838 000CN Table 8 2 on page 8 6 Screw M4x6 Screw w Washer XB2 6400 607CN Table 8 2 on page 8 6 Screw M4x6 W Washer XA9 0265 000CN Table 8 2 on page 8 6
10. 148 by 210 mm 60 to 105 g m y 50 100 transparencies 11 by 17 11 by 17 in 279 by 432 mm A3 11 7 by 16 5 in 297 by 420 mm B4 JIS 10 1 by 14 3 in 257 by 364 mm Custom 5 8 by 8 2 to 11 7 by 17 in 148 by 210 to 297 by 432 mm 1 The printer supports a wide range of media sizes Check the printer software for supported sizes 2 Capacity may vary depending on media weight and thickness and environ mental conditions 3 To print rotated paper see the User s Guide 4 To print custom size paper see the User s Guide EN Paper Specifications 1 13 Table 1 9 Paper Specifications Optional Duplex Printing Accessory Duplexer Dimensions Weight Minimum 5 8 by 8 3 inches 148 by 210 mm 16 to 28 Ib Maximum 11 7 by 17 inches 60 to 105 g m 297 by 432 mm 1 The printer supports a wide range of media sizes Check the printer software for supported sizes Supported Types of Paper The printer supports the following types of paper plain preprinted letterhead transparency prepunched labels bond recycled color card stock rough user defined 5 types vellum 1 14 Printer Description EN Guidelines for Using Paper For best results use conventional 20 Ib 75 g m paper Make sure the paper is of good quality and free of cuts nicks tears spots loose particles dust wrinkles voids and curled or bent edges Some paper causes
11. Defective Laser Scanner Defective High Voltage Power Supply Action 1 Clean the contacts if they are dirty If the problem remains after cleaning or if parts are damaged or deformed replace them 2 Replace the Engine Controller Board if necessary Replace the Laser Scanner Replace the High Voltage Power Supply PCA See also Faded Print Bubbles on page 7 61 Table 7 24 Loose Toner Possible Cause Dirt in the printer Toner Cartridge is defective Paper might be too smooth Wrong Fuser setting for paper type Defective Fuser 7 66 Troubleshooting Action 1 Print a few more pages to see if the problem corrects itself 2 Clean the inside of the printer page 4 2 or use the printer s cleaning page page 4 4 Replace the Toner Cartridge Check the paper or other print media type and quality From the Paper Handling Menu on the Control Panel change the Fuser Mode setting or choose another paper type from the printer driver Replace the Fuser EN ABAC E AaBbCc AaBbCc AaBbCc AQBbCc EN Table 7 25 Repetitive Defects Possible Cause Action Toner Cartridge is Inspect the drum for scratches or damage Replace damaged The the Toner Cartridge circumference of the photoconductive drum inside the toner cartridge is 94 mm 3 7 inches If the defect repeats at this interval the defect is associated with the drum Dirty Rollers Any dirty Ex
12. JdAL AVYL INTYd NIWId NOTLVENST sAdAl Z AVYL ANTYd LSuld dW NNIW 300W T AVL LNTY ANA ONIMONVH YadVd ANAW NOILVWHOSNI den nuan siaud Saas 0006 JOLAISVT dH Menu Map Figure 7 4 EN 7 44 Troubleshooting Note EN Configuration Page Use the Configuration Page to view current printer settings to help troubleshoot printer problems or to verify installation of optional accessories such as memory DIMMs paper trays and printer languages If an HP JetDirect print server ElO card is installed a JetDirect Configuration Page will print out as well To print a Configuration page 1 Press Menu until 2 Press ltem until F 3 Press Select to print the configuration page Figure 7 5 on page 7 46 is a sample Configuration Page Numbers in the sample printout match the numbers in the table The content of the Configuration Page varies depending on the options currently installed in the printer Troubleshooting the Printing System 7 45 HP LaserJet 5000 series printers GQ HEWLETT PACKARD Configuration P Printer Information i Product Name HP laserJet 5000 Series orinter Name HP LaserJet 5000 Series Printer Number 10 Formatter Number SASXXAKXXXX Printer Serial Number YYYYYYYYYY Firmware Datecode 971111 MOBY2 60 PS wait Time ouz 300 seconds Page Count 42 Pages Since Last Maintenance 42 HF JetSerd Address ip 15 98 40 166 Installed Persona
13. Typeface and accessory information Printer support software information Toner information Driver request form and Software Matrix HP FIRST U S Call the HP ASAP system 1 800 333 1917 and follow the voice prompts to enter HP FIRST HP FIRST Europe Call HP FIRST at one of the following numbers U K 0800 96 02 71 Belgium Dutch 078 111906 Switzerland German 155 1527 Netherlands 06 0222420 Germany 0130 810061 Austria 0660 8128 For English service outside the above countries call 31 20 681 5792 HP CompuServe Forum CompuServe members can download a variety of support materials including product data sheets software application notes and printer drivers for many popular software applications Members may also post and reply to questions in an interactive format To access the HP Forum type GO HP at any prompt For more information or to join CompuServe call 1 800 524 3388 2 6 Service Approach EN EN North American Response Center NARC The North American Response Center NARC is available to assist service technicians The NARC can be reached at 1 800 544 9976 Other Areas Outside of North America and Europe contact your local HP sales office for assistance in obtaining technical support Parts and Supplies 2 7 Toner Cartridge Information The Toner Cartridge is designed to simplify replacement of the major consumable parts The Toner Cartridge contains the printing mechanism
14. When and Tray 1 is empty the printer goes offline when it receives a print job and displays This item appears only when an optional duplexer is installed Set the value to to print on both sides duplex or fF to print on one side simplex of a sheet of paper This item appears only when an optional duplexer is installed and the duplex option is on Choose the binding edge when duplexing printing on both sides of paper Choose Eto print on letter size paper when an A4 job is sent but no A4 size paper is loaded in the printer or to print on A4 size paper when a letter job is sent but no letter paper is loaded in the printer EN Table 3 5 Paper Handling Menu continued Item Values EN Explanation Configure the fuser mode associated with each paper type This is only necessary if you are experiencing problems printing on certain paper types The fuser mode menu items are not accessible Additional items appear see below Note To see the default fuser mode for each paper type select scroll back to the Information Menu and print a menu map page 3 6 This item appears only when Most paper types are set by default For acomplete list of supported paper types see page 1 14 Control Panel Menus 3 9 Print Quality Menu Some items in this menu can be accessed from a software application or from the printer driver if the appropri
15. a E wee S5 sE T ot me BG oD 2E re g Tomp om E 2B i oc 5s TE CE pe oa FD g2 BE aS ape eo 50 a2 pene ne 25a a ba S i m enna as H Delivery roller j es 2 3 3 et 2 jain motor aiae Fap _ Photo Tray 1 7 sensitive pick up roller K 1 e Jea AA AA alh E x Separation pad Feed roller Transter charging i roller Tray paper v4 pick up roller A E Separation pad m P APE O ENEA PA saa eee Figure 5 18 Tray 2 Paper Path EN Paper Feed System 5 33 Figure 5 19 Paper Skew Loop forming 5 34 Functional Information EN Printing from the Optional 500 sheet and 250 sheet Trays There are two kinds of paper feeders 250 sheet and 500 sheet The paper feeder operation sequence is controlled by the paper handling PCA The paper handling PCA has the 8 bit microcomputer and controls the serial communications between the operation sequence control of the paper handling and the DC controller PCA of the printer The paper handling PCA drives motors and solenoids with various commands from the DC controller PCA The paper handling PCA sends the status of the paper feeder back to the printer at the same time Refer to page 7 74 for the wiring diagrams DC controller PCA Serial line Paper handling PCA 7T Roy L Feeder sensor PCA i S Bh f Mrama mnanaa T S pi S mn D a 5 r a Ea Ll o ian z dl oe OTN 4 Pa 4 G Pa
16. 2nd X Device type 3 types 1 Input 2 Output 3 Stapler stacker unit yy Device specific error An error occurred in the printer s nonvolatile memory NVRAM and one or more printer settings has been reset to its factory default Recommended Action Reseat or replace the specified DIMM 1 Turn the printer off then turn the printer on 2 Replace Formatter PCA 1 Press Go to clear the message If the message will not clear 2 Turn the printer off and then turn the printer on 3 Check all cables 4 Reseat the external paper handling device 1 Print a configuration page and check the printer settings to determine which values have changed 2 Hold down Cancel Job while turning the printer on This will clean up the NVRAM by removing old areas that are not being used EN Table 7 6 Numerical Printer Messages continued Control Panel Event Message Log Message EN Explanation An error occurred in the printer s nonvolatile memory NVRAM and one or more printer settings has been reset to its factory default A temporary printing error occurred X Description 0 The duplex mechanism has failed 1 The duplex side adjust has failed Recommended Action 1 Print a Configuration Page and check the printer settings to determine which values have changed 2 Hold down Cancel Job while turning the printer on This will clean up the NVRAM by removing old
17. AaBbCc AaBbCc AaBbCc AaRhfe EN Table 7 22 Horizontal White Lines Possible Cause Lack of toner or faulty Toner Cartridge Dirt in the laser path Defective Fuser Dirty mirror in the Laser Scanner Action Redistribute the toner in the Toner Cartridge If the problem continues replace the Toner Cartridge Clean the laser path Remove the Laser Scanner Assembly and clean the lens Replace the Fuser Assembly Replace the Laser Scanner Table 7 23 Light Print Dark Print or Fade Possible Cause Wrong toner density setting Toner Cartridge is low Transfer Roller is defective Paper does not meet printer specifications or is stored improperly Action From the Print Quality Menu on the Control Panel adjust the toner density setting Make sure EconoMode is off Replace the Toner Cartridge Replace the Transfer Roller 1 Print a few more pages to see if the problem corrects itself 2 Turn over the stack of paper in the tray Also try rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Troubleshooting the Printing System 7 65 AaBbCc AaRhf rer AaBbCc AaBbCc AaBbCc AaBbCc Table 7 23 Light Print Dark Print or Fade continued Possible Cause Poor contact to the Engine Controller Board
18. EIO card 6 EIO slot 1 The EIO card detected an error The ElO card may be defective 7 ElO slot 2 The ElO card detected an error The ElO card may be defective Recommended Action 1 Turn the printer off and then turn the printer on 2 Reseat or replace the EIO board Troubleshooting the Printing System 7 39 General Paper Path Troubleshooting Paper jams occur in the printer when paper does not either reach or clear a photosensor along the printer s paper path in a Specific amount of time If a paper jam occurs a i imessage is displayed on the printer s Control Panel The following table contains general questions you may ask and topics to explore prior to troubleshooting See the i xx section in the Event Log for specific error codes Table 7 7 General Paper Path Troubleshooting Questions Problem What is the frequency of the paper jams e g continuous one jam per 100 pages one jam per 1000 pages etc Do paper jams only occur when the paper is fed from a particular paper input source e g Tray 1 Tray 2 Do jams only occur when paper is output to a specific output bin e g face down output bin face up bin Do paper jams occur with a specific type of media Where does the leading edge of the first sheet of paper in the printer s paper path stop when a jam occurs Are any sheets of paper damaged or torn 7 40 Troubleshooting Action Verify with customer P
19. If the requested paper 1 Press Value to size or type is not scroll through the available the printer asks available types and sizes if it should use another 2 Press Select to paper size or type instead accept the alternate type or size The RAM disk setting has Wait for the printer to been changed from the reinitialize printer s Control Panel This change will not take effect until the printer reinitializes EN Troubleshooting the Printing System 7 25 Table 7 6 Numerical Printer Messages Control Panel Message 7 26 Troubleshooting Event Log Message 13 xx 13 01 13 02 Explanation Paper is jammed at the specified location and possibly at other locations If the message persists after all jams have been cleared a sensor might be stuck or broken Paper delay jam at paper feed area Paper stopped jam at paper feed area Recommended Action For all paper jam messages do the following 1 Remove jammed paper from the specified location Check the entire paper path for other pieces of paper in the path 2 Open and close the top cover to clear the message 3 If the jam reoccurs see General Paper Path Troubleshooting on page 7 40 4 Check sensors and flags in the paper path for proper operation For locations of sensors see page 7 88 For i and 1 Ensure that paper trays are loaded properly so paper can feed from the tray 2
20. Possible Cause Action Defective Toner Replace the Toner Cartridge Cartridge Light is leaking into Ensure all covers are in place the printer High voltage power Replace the High Voltage Power Supply PCA supply circuit is defective not supplying the correct negative voltage The High Voltage Remove the DC Controller Board and check the Power Supply is connectors for damage Reseat the DC Controller installed improperly If Board being certain to fully seat the connectors the High Voltage Power Supply has been removed and replaced it may not be seated properly Bad Primary Charging Replace the Toner Cartridge Roller DC Controller PCA is Replace the DC Controller PCA defective If the DC Controller turns on the laser beam continuously the entire surface of the Photosensitive drum is neutralized causing a completely black page Laser Scanner Replace Laser Scanner Assembly Assembly is faulty turning laser on continuously 7 52 Troubleshooting EN EN Table 7 10 Black Page continued Possible Cause Defective Toner Cartridge Light is leaking into the printer Connectors between the Laser Scanner unit and DC Controller are not seated properly or are defective Action Replace the Toner Cartridge Ensure all covers are in place Inspect and reseat the connectors Replace cables as necessary Table 7 11 Blank Page Possible Cause S
21. Removing the Paper Size Spring Assembly A Paper Size Spring Assembly Optional 500 sheet Tray Disassembly 6 77 D Roller and Feed Roller Feed Roller Removal 1 Pinch the Feed Roller Tab and slide it off of the shaft D Roller Removal 1 Disengage the Spring B 2 Remove the Pickup Roller Shaft from the Retaining Clips 3 Depress the Locking Tab on the D Rollers and remove it from the shaft Figure 6 67 Removing the Feed Roller and D rollers Feed Roller Spring Pickup Roller Shaft Retaining Clips Paper Sensor Flag D rollers nio m oo w gt Joint Auxiliary Shaft 6 78 Removing and Replacing Parts EN Figure 6 68 EN Gear Assembly and PCA 1 Remove the Gear Assembly by removing the six small self tapping screws 2 Remove the 500 sheet Feeder PCA by removing the two machine screws C 3 Remove the Paper Size Switch PCA by removing the two machine screws Removing the Gear Assembly and PCA Paper Size Switch PCA B Small Self tapping Screws C Machine Screws Optional 500 sheet Tray Disassembly 6 79 Power Connector 1 Remove the Power Connector by removing the two screws A Figure 6 69 Removing the Power Connector A Screws 6 80 Removing and Replacing Parts EN Figure 6 70 EN Separation Roller 1 Lift the Return Cover 2 Pinch the Separation Roller Tab 3 Slide the Separation Roller off
22. This procedure will clean up the NVRAM by removing old areas that are not being used 1 Turn off the printer 2 While pressing Cancel Job turn the printer on appears briefly on the display followed by few seconds y 3 36 Printer Operation EN System Configuration Note EN MS DOS System Configuration To communicate properly with the printer the MS DOS environment requires the addition or modification of MODE commands in the AUTOEXEC BAT file Add or modify the MODE command s depending on the interface configuration as follows Parallel DOS Commands Most IBM and AT compatible computers default to a parallel printer port To ensure that information is sent to your parallel printer port type the following MS DOS command at your MS DOS prompt or include it in your AUTOEXEC BAT file MODE LPT1 B This example assumes that you are using parallel printer port LPT1 If you are using LPT2 or LPT3 replace LPT1 in the example with the printer port that you are using Since the MODE command is an external MS DOS command a program named MODE COM is run when the MODE command is invoked the program file must be contained in the root directory or in a directory specified in a preceding PATH command in the AUTOEXEC BAT file After changing the AUTOEXEC BAT file reboot the computer to initiate the changes System Configuration 3 37 Note Serial MS DOS Commands Most IBM compatible computers defau
23. and 2 13 RB1 6177 000CN 2 Pickup Shaft Bushing Tray 1 and 2 14 RB2 1820 000CN 1 Pickup Roller 15 RB2 1797 000CN 1 Cam Right 16 RB2 1796 000CN 1 Cam Left 17 RH7 1354 000CN 1 Fan 18 RB2 1738 000CN 1 Shutter Lever 19 RB2 1774 000CN 1 Cartridge Guide Left 20 RB2 1775 000CN 1 Cartridge Guide Right 21 RB2 1780 000CN 1 Paper Guide 22 RB2 1740 000CN 1 Grounding Plate Fan Housing 23 RB2 1736 000CN 1 Grounding Plate 24 XB2 6400 607CN 2 M4X6 Screw w Washer 25 XB1 2300 607CN 2 M3x6 Screw Mach Truss Head XB4 7401 007CN 6 M4x10 Screw Tapping Pan Head EN Illustrations and Parts Lists 8 17 Internal Components 3 of 4 Figure 8 6 EN 8 18 Parts and Diagrams Table 8 9 Internal Components 3 of 4 Item No Part No Quantity Description 1 RG5 3525 000CN 1 Transfer Guide Assembly 2 RB2 1996 000CN 4 Face Down Guide Roller 3 RB2 1997 000CN 4 Roller Holder 4 RS5 2225 020CN 4 Roller Spring 5 RB1 6251 000CN 4 Lower Delivery Roller 6 RB1 6252 000CN 4 Lower Delivery Roller Spring 7 RB2 1732 000CN 1 Door Switch 8 RB2 1739 000CN 1 Door Switch Spring 9 RF5 2399 000CN 1 Pad Assembly 10 RB2 2068 000CN 1 Roller Mount 1 EN Illustrations and Parts Lists 8 19 Internal Components 4 of 4 7 Figure 8 EN 8 20 Parts and Diagrams Table 8 10 Internal Components 4 of 4 Item No Part No Quantity Description 1 RG5
24. media is being used then High Fuser Mode is beneficial If transparencies or light media are being used then Low Fuser Mode might be appropriate is in the Paper Handling Menu and when set to the default of H paper types are not displayed in the menu When is set to YES the different paper types are then displayed i in 1 the n menu 5 28 Functional Information EN Paper Feed System Rear Output Bin open signal FUOPEN DC controller PCA c7 s aD A a Zz w eS gt lt Terminal PCA sea a a Os gt E ao2 lt es 6 v Fad 2 o ew 5 D 5 o zZ K o 5 oy a Pn Nese amp 5 82a amp oO Db n on s D gt A D a 3 ll N a o gt 5 a 2E 32 p g ST e 20 850 F l a8 A 30 Z 25 SE 5o 32 2 a0 gt ga sai sf 26 From E E Ss G rs H r as 22 25 Sa 38 a z 2 a PE So gt a D a 2s 8 Trayi z Za P z pick up roller Photo 77 sensitive rd Leow Le p Ras uD ps4o2 Ps4o3 P5401 4 x oe ra y on a PS302 N N Separation pad charging Registration i roller roller CO Feed toller PS301 fo ho 6W403 O Tray paper pick up roller sien E Separation pad sw406 oe a res a Figure 5 16 Paper Path EN The paper in Tray 1 is detected by the Tray 1 paper sensor PS401 The paper in Tray 2 is detected by the Tray 2 paper sensor PS301 The size of the paper in Tray 2 and t
25. 000 cece eee 6 83 7 Troubleshooting OVErVIEW 1 teen nena 7 1 Troubleshooting Process 0 0 ees 7 2 Troubleshooting Process Flow 000 cee 7 4 Troubleshooting the Printing System 0 5 7 6 Preliminary Operating Checks 0000 cena 7 6 PoOWer ON 6s gee See ee ER EES Eke eee ee Reed 7 7 Display 0 eee 7 11 Event LOG 2 327 endeaud dest a sisted deek i taeiadd 7 12 Printer Messages 000 cece eee eee 7 16 General Paper Path Troubleshooting 7 41 Information Pages 00 0 cece eee eee 7 44 Image Quality 00 00 ee 7 49 Interface Troubleshooting sasaa anaana 7 77 Reference DiagramS 0 020 c eee eee 7 80 Locations of Components 0 0000e eee aes 7 80 Sensors and Signals 0 000 eects 7 88 DC Controller PCA Inputs and Outputs 7 107 8 Parts and Diagrams OVEIVIEW e eraren ekr hands been eee ee eee een eee eee 8 1 How To Use the Parts Lists and Diagrams 8 2 Accessories and Supplies 00 0 e eee eee 8 4 Common Hardware and Replacement Cables 8 6 Illustrations and Parts Lists 0 0000 c eee eee 8 7 Alphabetical Parts List 0 000002 e eeu 8 39 Numerical Parts List oscars 0 0 0 0 cece eee eee eee 8 44 Index Contents 5 6 Contents EN EN Printer Description Overview This chapter discusses the following Printer Featu
26. 14 Paper Sensor Lever Spring RB2 1783 000CN Table 8 7 on page 8 14 Photo Sensor Pickup Gear Assembly WG8 5362 000CN RG5 3544 000CN Table 8 14 on page 8 27 Table 8 18 on page 8 34 Pickup Roller RB2 1820 000CN Table 8 8 on page 8 17 Pickup Roller 250 sheet Trays RB2 1821 000CN Table 8 12 on page 8 23 Pickup Roller 500 sheet Feeder RF5 2636 000CN Table 8 23 on page 8 41 Pickup Shaft Bushing Tray 1 and 2 RB1 6179 000CN Table 8 8 on page 8 17 Pickup Shaft Bushing Tray 1 and 2 RB1 6177 000CN Table 8 8 on page 8 17 Pickup Solenoid RH7 5193 000CN Table 8 18 on page 8 34 Power Connector WS6 5092 000CN Table 8 7 on page 8 14 Power Inlet Assembly RG5 3545 000CN Table 8 8 on page 8 17 Power Supply 100 120 V RH3 2195 000CN Table 8 19 on page 8 35 Power Supply 220 240 V RH3 2196 000CN Table 8 19 on page 8 35 Rear Cover Assembly RG5 3551 000CN Table 8 5 on page 8 10 8 44 Parts and Diagrams EN Description Part Number Table Number and Page Rear Door Sensor Assembly RG5 3553 000CN Table 8 7 on page 8 14 Registration Roller Assembly RG5 3524 000CN Table 8 15 on page 8 29 Return Cover 500 sheet Feeder RB2 3262 000CN Figure 6 70 on page 6 81 Right Auxiliary Cover 500 sheet Feeder RB2 3236 000CN Table 8 22 on page 8 39 Right Bushing RB2 1986 000CN
27. 1797 000CN RB2 1800 000CN RB2 1802 000CN RB2 1803 000CN RB2 1804 000CN RB2 1805 000CN Paper Sensor Lever Spring Table 8 7 on page 8 14 Table 8 7 on page 8 14 Sensor Mount Rear of Controller Pan Table 8 20 on page 8 36 Table 8 20 on page 8 36 Table 8 8 on page 8 17 Table 8 8 on page 8 17 Table 8 12 on page 8 23 Table 8 12 on page 8 23 Table 8 12 on page 8 23 Table 8 12 on page 8 23 Table 8 12 on page 8 23 RB2 1807 000CN Table 8 14 on page 8 27 RB2 1808 000CN Sensor Flag Spring Table 8 14 on page 8 27 RB2 1821 000CN Pickup Roller 250 Sheet Trays Table 8 12 on page 8 23 RB2 1856 000CN Toner Cartridge Engagement Arm Table 8 17 on page 8 33 RB2 1886 000CN Paper Feed Shaft Table 8 13 on page 8 25 RB2 1887 000CN Large Feed Belt Table 8 13 on page 8 25 RB2 1888 000CN Table 8 13 on page 8 25 RB2 1903 000CN Table 8 13 on page 8 25 RB2 1904 000CN Table 8 13 on page 8 25 RB2 1905 000CN RB2 1906 000CN RB2 1970 000CN RB2 1975 000CN RB2 1976 000CN RB2 1977 000CN RB2 1978 000CN RB2 1980 000CN RB2 1981 000CN RB2 1984 000CN RB2 1985 000CN RB2 1986 000CN RB2 1987 000CN RB2 1988 000CN Paper Sensor Lever Spring Sensor Lever Cam Left Cam Right Tray 2 Pickup Roller Shaft Left Roller Cam Right Pickup Roller Collar Right Pickup Roller Bushing Right Roller Cam Sensor Flag Lever Small Paper Feed Belts Transfer Roller Bushing right Transfer Roller Bushing left Transfer Roller Bushing
28. 3579 000CN 1 Transfer Roller Assembly 2 RG5 3603 000CN 1 Laser Scanner Assembly 3 RG5 3562 000CN 1 Cable Scanner 4 RG5 3561 000CN 1 Cable Fuser AC 5 XA9 0838 000CN 4 Screw with washer m4x16 EN Illustrations and Parts Lists 8 21 Figure 8 8 Upper Delivery Assembly Table 8 11 Upper Delivery Assembly Item No Part No Quantity Description 1 RG5 3542 000CN 1 Upper Delivery Assembly RB2 1980 000CN 1 Face Down Bin Full Sensor Lever RB2 1986 000CN 1 Right Bushing RB2 1987 000CN Left Bushing RB2 1984 000CN Delivery Roller RS6 0357 000CN Delivery Roller Gear RF5 2415 000CN Delivery Guide o NI O oO A WwW RB2 1981 000CN Static Charge Eliminator 8 22 Parts and Diagrams EN 2 5 a e OY Figure 8 9 Tray 2 Paper Pickup Roller Assembly Table 8 12 Tray 2 Paper Pickup Roller Assembly Item No Part No Quantity Description 1 RG5 3521 000CN 1 Paper Pick Up Roller Assembly Tray 2 2 RB2 1821 000CN 1 Pickup Roller 250 sheet Trays 3 RB2 1802 000CN 1 Left Roller Cam 4 RB2 1805 000CN 1 Right Roller Cam 5 RB2 1815 000CN 1 Left Pickup Roller Collar 6 RB1 6149 000CN 1 Left Pickup Roller Bushing 7 RB2 1803 000CN 1 Right Pickup Roller Collar 8 RB2 1804 000CN 1 Right Pickup Roller Bushing 9 RB2 1800 000CN 1 Tray 2 Pickup Roller Shaft EN Illus
29. 4 Select the amount of memory the amount of installed used for saving PS resources Printer memory 8 MB totalis default is the minimum amount of memory required to see this needed to perform resource saving for PS message Press Value to change settings by increments of 10 up to 100 KB or by increments of 100 above 100 KB This item appears only after a message displays Memory Enhancement technology MEt attempts to guarantee that all pages will print If the page does not print turn F T to 4 This might increase chances ofa 28 IH message If this occurs simplify the print job or install additional memory Set the amount of time that a clearable warning is displayed on the printer s Control Panel Warning messages display on the Control Panel until the end of the job from which they were generated OH Warning messages display on the Control Panel until Go is pressed EN Control Panel Menus 3 19 Table 3 8 Configuration Menu continued Item Values Explanation Determine how the printer reacts to errors If an error occurs that prevents printing the message will display and the printer will go offline for 10 seconds before returning online SEF If an error occurs that prevents printing the message will remain on the display and the printer will remain offline until Go is pressed If the printer is on a network you will probably want to turn Det
30. 40 ZEROX Zerox signal reference signal for gt 338 5 esa I temperature regulation j TB1306 Figure 7 35 DC Controller PCA I O 3 of 4 EN Reference Diagrams 7 109 BD PCA Laser diode Laser driver Main motor Figure 7 36 DC controller PCA 24VA J701 4 J304 1 ne 2 ACC Scanner motor acceleration signal 3 DEC Scanner motor deceleration signal ai 4 i 3 4V J1001 3 4 J304 5 1 2 s BDI BD input signal pulse 7 5V J304 15 4 16 goo H to switches to the light intensity of 1200DP1 17 J ENBL E to switch the laser ON according to the VDO and 18 LON ANDO signals 20 L to tum the laser ON compulsively Mao aTe helar ON ee NDO and this signal is H 19 22 Tums the laser ON when ENBL signalis L Hr and this signal is L NOTE VDO and VDO signals is differential input signals J601 7 s3045 HALF L 1200DP half speed rotation 6 MRDY L when main motor is rotating normally 3 9 MON L to main motor rotates 1 2 10 11 24VA 4 5 7 8 DC Controller PCA I O 4 of 4 7 110 Troubleshooting EN EN Parts and Diagrams Overview The figures in this chapter identify and locate the printer s major subassemblies and replacement parts This chapter discusses the following e How to Use the Parts Lists and Diagrams e Accessories and Supplies Illustrations and Parts Lists Overvie
31. 8 11 Figure 8 3 Upper Cover Assembly Table 8 6 Top Cover Assembly Item No Part No Quantity Description 1 RG5 3604 000CN 1 Control Panel Assembly 2 C4110 40004 1 Control Panel Overlay English 8 12 Parts and Diagrams EN Table 8 6 Top Cover Assembly continued Item No Part No Quantity Description 3 RG5 3556 000CN 1 Toner Cartridge Door Assembly 4 RB2 1759 000CN 1 Control Panel Leaf Spring 5 RB2 1906 000CN 1 Cleaning Brush EN Illustrations and Parts Lists 8 13 Tapping Pan Head unless otherwise indicated z o ip M4x10 N W ie S j N N AS X l 5 Vi x s oo Za VITAN Ea Internal Components 1 of 4 Figure 8 4 Cables are listed in Table 8 3 on page 8 6 Table 8 7 Internal Components 1 of 4 Description Quantity Item No Part No Tray 1 Paper Guide Plate Assembly RG5 3520 000CN EN 8 14 Parts and Diagrams Table 8 7 Internal Components 1 of 4 continued Item No Part No Quantity Description 2 RG5 3553 000CN 1 Rear Door Sensor Assembly 3 RG5 3585 000CN 1 Tray 1 Separation Pad with Spring 4 RH7 5195 000CN 1 Paper Pick Up Solenoid 5 WS6 5092 000CN 1 Power Connector 6 RB2 1782 000CN 1 Paper Sensor Lever 7 RB2 1784 000CN 1 Paper Sensor Lever Spring 8 RB2 1781 000CN 1 Paper Sensor Lever
32. 8 2 in 149 by 210 mm to 11 by 17 in 279 by 432 Straight through from Tray 1 to rear output bin Or to top output bin 250 sheet top output bin 50 sheet rear output bin Duplexer optional 250 sheet and 500 sheet universal tray assembly Printer Features 1 3 Table 1 2 Comparison of HP LaserJet 5000 Series Printers Ethernet 10 T 10 2 Max input bins Standard RAM 250 sheet Tray 500 sheet Universal Tray 1 4 GB EIO Drive Duplexer Envelope feeder LocalTalk HP LaserJet HP LaserJet 5000 5000 N optional standard 4 4 4 MB internal 8 MB 1 standard 1 standard 1 optional 1 optional optional standard optional optional optional optional not available not available optional standard 1 4 MB internal with remainder in DIMM 1 4 Printer Description HP LaserJet 5000 GN standard 12 MB 1 standard 1 optional standard standard optional not available standard EN Identification Model and Serial Numbers The model number and serial numbers are listed on identification labels located on the rear left side of the printer The serial number is alphanumeric such as USB0000146 for the HP LaserJet 5000 N printer The serial number contains information about the Country of Origin the Revision Level the Production Code and Production Number of the printer The rear labels also contain power rating and regulatory information as shown in Figure 1 1 Tested To Compl
33. 9 RB2 1783 000CN 1 Paper Sensor Lever Spring 10 RB2 1985 000CN 1 Lower Delivery Roller 11 RB2 1988 000CN 1 Right Bushing Lower Delivery Roller 12 RB2 1989 000CN 1 Left Bushing Lower Delivery Roller 13 RS6 0357 000CN 1 Lower Delivery Shaft Gear 14 RH7 5192 000CN 1 Paper Feed Clutch 15 RB2 1734 000CN 1 Grounding Plate 16 RB2 1735 000CN 1 Grounding Plate 17 RB2 1737 000CN 1 Grounding Plate 18 RB1 6141 O00CN 1 Grounding Plate 19 RB2 1990 000CN 1 Grounding Plate 23 XA9 0267 000CN 2 M3x6 Screw TP 24 XB4 7401 007CN 14 M4x10 Screw Tapping Pan Head 25 RB2 1825 000CN 1 Leaf Spring EN Illustrations and Parts Lists 8 15 Pan Head unless Tapping x EN LN NI We V N RN 7A Screws M4x10 otherwise noted Internal Components 2 of 4 8 16 Parts and Diagrams Figure 8 5 Table 8 8 Internal Components 2 of 4 Item No Part No Quantity Description 1 RS5 1392 000CN 2 Tray 1 and 2 Pickup Shaft Left Bushing 2 RS5 0695 000CN 1 Tray 2 Shaft Gear 3 RS5 2434 000CN 1 Spring 4 RB1 2190 000CN 1 Tray 2 Hook 5 RF5 2397 000CN 1 Tray 2 Rail Left 6 RF5 2398 000CN 1 Tray 2 Rail Right 7 RG5 3545 000CN 1 Power Inlet Assembly 8 RB2 1744 000CN 1 On Off Switch 9 RB2 1731 000CN 1 Switch Rod 10 RG5 3519 000CN 1 Tray 1 Pickup Roller Assembly 11 RB1 6130 000CN 1 Tray 1 Pickup Gear 12 RB1 6179 000CN 2 Pickup Shaft Bushing Tray 1
34. Any changes or modifications to the printer that are not expressly approved by HP could void the user s authority to operate this equipment Use of a shielded interface cable is required to comply with the Class B limits of Part 15 of FCC rules Safety Information 1 23 Laser statement for Finland Luokan 1 laserlaite Klass 1 Laser Apparat HP LaserJet 5000 5000 N 5000 GN laserkirjoitin on kayttajan kannalta turvallinen luokan 1 laserlaite Normaalissa k yt ss kirjoittimen suojakotelointi est lasers teen p syn laitteen ulkopuolelle Laitteen turvallisuusluokka on m ritetty standardin EN 60825 1 1994 mukaisesti Varoitus Laitteen k ytt minen muulla kuin k ytt ohjeessa mainitulla tavalla saattaa altistaa k ytt j n turvallisuusluokan 1 ylitt v lle n kym tt m lle lasers teilylle Varning Om apparaten anv nds p annat s tt n i bruksanvisning specificerats kan anv ndaren uts ttas f r osynlig laserstralning som verskrider gr nsen f r laserklass 1 HUOLTO HP LaserJet 5000 5000 N 5000 GN kirjoittimen sis ll ei ole k ytt j n huollettavissa olevia kohteita Laitteen saa avata ja huoltaa ainoastaan sen huoltamiseen koulutettu henkil T llaiseksi huoltotoimenpiteeksi ei katsota v riainekasetin vaihtamista paperiradan puhdistusta tai muita k ytt j n k sikirjassa lueteltuja k ytt j n teht v ksi tarkoitettuja yll pitotoimia jotka voidaan suorittaa ilman erikoisty6kalu
35. It is best to change the REt setting from the printer driver or software application Driver and software settings override Control Panel settings Turn EconoMode on to save toner or off for high quality EconoMode creates draft quality printing by reducing the amount of toner on the printed page by up to 50 Caution HP does not recommend full time use of EconoMode If EconoMode is used full time it is possible that the toner supply will outlast the mechanical parts in the Toner Cartridge Note It is best to turn EconoMode on or off from the printer driver or software application Driver and software settings override Control Panel settings EN Control Panel Menus 3 11 Table 3 6 Print Quality Menu continued Item Values No value to select No value to select 3 12 Printer Operation Explanation Lighten or darken the print on the page by changing the toner density setting The settings range from 1 light to 5 dark but the default setting of 3 usually produces the best results Use a lower toner density setting to save toner Note It is best to change the toner density from the printer driver or software application Driver and software settings override Control Panel settings Press Select to print a cleaning page for cleaning excess toner from the paper path In order for the cleaning page to work properly print the page on copier grade paper not bo
36. Log will record a 13 0x 01 through 13 0x 09 where x the number of sensors blocked in the printer Whenever a i3 appears on the Control Panel a good practice is to clear all the BA paper from the printer and print the Event log If you cannot print the Event Log you can still display it on the Control Panel Write the error next to the last error logged The last error is the error at the top of the Event Log printout with the highest number in the left most column To interpret the Event Log e Each individual entry in the log is called an error and all errors occurring at the same page count are called an event Read the Recommended Action for each error comprising an event to gain a clear picture of what took place during that event Events usually conclude with a time out or no response from device Error amp amp in the Event Log which requires a power cycle of the print engine e Use the Event Log table in this section to associate errors in the Event Log with the Control Panel error message Follow the Recommended Action listed in the table for each error or event Troubleshooting the Printing System 7 15 Hint Note Printer Messages The following table explains messages that might display on the printers Control Panel Alphabetical printer messages and their meanings are listed in Table 7 5 and numerical printer messages are listed in Table 7 6 If the message persists requesting that you loa
37. Menu See also Dropouts on page 7 60 EN AaBbCc AaBbCc AOB AGBP ASB ACGBLCe ASB AaBLC Ce EN Table 7 16 Dirt on Back Possible Cause Action Dirt inside printer 1 Print at least 10 pages to see if the problem goes Tray Separation away Roller Feed Roller 2 Print a cleaning page page 4 4 Transfer Roller Identify and clean the dirty part according to the Fuser Toner Repetitive Defect Ruler on page 7 72 If dirt cannot Cartridge be removed replace the dirty part 3 Check for toner leaks Paper does not meet 1 Print a few more pages to see if the problem printer specifications corrects itself or is stored 2 Turn over the stack of paper in the tray Also try improperly rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Table 7 17 Distorted Image Possible Cause Action Paper does not meet 1 Print a few more pages to see if the problem printer specifications corrects itself or is stored 2 Turn over the stack of paper in the tray Also try improperly rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Printers operating Make sure the printer s operating environment meets environment does not specifications meet
38. NVRAM The printer uses NVRAM to store I O and information on the print environment s configuration The contents of NVRAM are retained when the printer is turned off or disconnected Disk Accessory The Disk Accessory is mounted on the rear of the Formatter PCA It can be used to permanently store downloaded fonts and forms in the printer Memory Enhancement technology MEt The Hewlett Packard Memory Enhancement technology MEt effectively doubles the standard memory through a variety of font and data compression methods Note MEt is only available in PCL mode it is not functional when printing in PS mode Page Protect Page complexity rules complex graphics or dense text may exceed the printer s ability to create the page image fast enough to keep pace with the Image Formation Process If Page Protect is disabled and a page is too complex it may print in parts for example the top half on one page and the bottom half on the next page Some print data loss is likely in these instances and the printer will display the error message alternating with Page Protect allows the Formatter to create the entire page image in page buffer memory before physically moving the paper through the printer This process ensures that the entire page will be printed Page Protect applies only to PCL printing The default setting is Auto 5 16 Functional Information EN PJL Overview Printer Job Language PJL is an integral
39. Nie eee behead 5 12 Resolution Enhancement technology REt 5 13 EconOModess 2 ect sdadide stay seenam kardai aiaa 5 13 Input Output 0 eae 5 14 CPW ci acc ae ret asda swore dye84 ae peas eee dee 5 14 Printer Memory 2 2 2 0 000 cece eee 5 15 Random Access Memory RAM 00 55 5 15 DIMM Slots 00 0c e ee eee eee 5 16 Memory Enhancement technology MEt 5 16 Page Protect 0 0 cece eee 5 16 PJL Overview 0 0 ce ee 5 17 PMs ies one ekipon cure eer le oe he eee eee wed 5 17 Control Panel 00000 c eee eee 5 17 Image Formation System 00000 cece eee eee 5 18 Toner Cartridge 2 eee 5 20 Photosensitive Drum 0000 e eee 5 21 Writing the Image 00 cece eee 5 24 Developing the Image 0 0c cece e eee eee 5 25 Transferring the Image 600 cee eee eee 5 26 Image Fusing Variable Fusing Temperature 5 27 Paper Feed System 0 0 0 000 cece nas 5 29 Clutches and Sensors 0000 0 cece eee eae 5 30 Printing from Tray 1 00 cece ee 5 31 Printing from Tray 2 1 0 0 cee ee 5 33 Printing from the Optional 500 sheet and 250 sheet TrayS 0c eee 5 35 Paper Jam 0 0 0 0 c ee 5 37 Duplexers 22eac8 roni ada anaa barda raeiidas 5 38 Paper Jam in the Duplexer 00 000005 5 44 Basic Sequence of Operation 00000 eee eeee 5 45 Contents 3 4 Co
40. Note EN Service Menu Service Menu Setting the Page Count Maintenance Count and Serial Number The page count and serial numbers are stored in Non Volatile Memory If it is necessary to replace the Formatter PCA the page count should be set to the current value to reflect the age of the print engine The procedure for setting the serial number is similar to setting the page count Before replacing the Formatter PCA print a Configuration Page to verify the current page count and serial number of the printer if possible Use the information on the Configuration Page to reset the page count and serial number for the new Formatter PCA Service Mode 3 31 Page Count The page count stored in NVRAM and displayed on the Configuration Page printout represents the number of pages which the printer has printed excluding engine test prints If it becomes necessary to repair a printer by installing a new Formatter the page count must be reset so that it represents the age of the printer s engine rather than the age of the Formatter The page count value is changed using a different method than is used for other control panel values Instead of increasing the entire value by increments each digit can be selected and modified individually The following control panel keys are used to modify the page count value Select Enters any changes to the current digit and advances the cursor one digit to the r
41. Output Menus depend on the particular accessory product installed in an EIO slot of the printer If the printer contains an HP JetDirect print server ElO card you can configure basic networking parameters using the EIO Menu These and other parameters can also be configured through HP JetAdmin Table 3 10 EIO Menu ltem Values EN Explanation i The JetDirect Menu is not accessible he JetDirect Menu appears Select whether the IPX SPX protocol stack in Novell NetWare networks for example is enabled on or disabled off Select whether the DLC LLC protocol stack is enabled on or disabled off Select whether the TCP IP protocol stack is enabled on or disabled off Select whether the Apple EtherTalk protocol stack is enabled on or disabled off The IPX SPX Menu is not accessible The IPX SPX Menu appears In the IPX SPX Menu you can specify the frame type parameter used on your network The default i to automatically set and limit the frame type to the one detected For Ethernet cards frame type selections include i i For Token Ri include In the IPX SPX Menu for Token Ring cards you can also specify NetWare Source Routing parameters which include default f e type selections Control Panel Menus 3 27 Table 3 10 EIO Menu continued Item 3 28 Printer Operation Values Explanation The TCP IP Menu is
42. Page Feeder Controller PCA Assembly 500 sheet Feeder RG5 421 1 O00CN Table 8 23 on page 8 41 Flat Cable RH2 5337 000CN Table 8 20 on page 8 36 Formatter Assembly C3974 69001 Front Cover 500 sheet Feeder RB2 3235 000CN Table 8 22 on page 8 39 Front Cover Assembly RG5 3549 000CN Table 8 5 on page 8 10 Front Cover Pin RB2 1745 000CN Table 8 5 on page 8 10 Front Inner Cover Assembly RG5 3547 000CN Table 8 5 on page 8 10 Fuser 100 120 V RG5 3528 000CN Table 8 21 on page 8 37 Fuser 220 240 V RG5 3529 000CN Table 8 21 on page 8 37 Grounding Plate RB2 1734 000CN Table 8 7 on page 8 14 Grounding Plate RB2 1735 000CN Table 8 7 on page 8 14 Grounding Plate RB2 1737 000CN Table 8 7 on page 8 14 Grounding Plate RB1 6141 000CN Table 8 7 on page 8 14 Grounding Plate RB2 1990 000CN Table 8 7 on page 8 14 Grounding Plate RB2 1736 000CN Table 8 8 on page 8 17 Grounding Plate Fan Housing RB2 1740 000CN Table 8 8 on page 8 17 Inner Cover 500 sheet Feeder RB2 3213 000CN Table 8 22 on page 8 39 Joint 500 sheet Feeder RB1 8877 000CN Table 8 23 on page 8 41 Large Feed Belt RB2 1887 000CN Table 8 13 on page 8 25 Laser Scanner Assembly RG5 3603 000CN Table 8 10 on page 8 21 Latch Plate Springs RS5 2952 000CN Table 8 5 on page 8 10 Leaf S
43. RB1 6252 000CN Lower Delivery Roller Spring Table 8 9 on page 8 19 RB1 8877 000CN Joint 500 sheet Feeder Table 8 23 on page 8 41 RB2 1731 O000CN Switch Rod Table 8 8 on page 8 17 RB2 1732 000CN Door Switch Table 8 9 on page 8 19 RB2 1735 000CN Grounding Plate Table 8 7 on page 8 14 RB2 1737 000CN Grounding Plate Table 8 7 on page 8 14 RB2 1738 000CN Shutter Lever Table 8 8 on page 8 17 RB2 1739 000CN Door Switch Spring Table 8 9 on page 8 19 RB2 1740 000CN Grounding Plate Fan Housing Table 8 8 on page 8 17 RB2 1744 000CN On Off Switch Table 8 8 on page 8 17 RB2 1745 000CN Front Cover Pin Table 8 5 on page 8 10 RB2 1747 000CN Face Down Auxiliary Cover Table 8 5 on page 8 10 RB2 1749 000CN Right Side Cover Assembly Table 8 5 on page 8 10 RB2 1755 000CN Right Corner Cover Table 8 5 on page 8 10 RB2 1756 000CN Left Corner Cover Table 8 5 on page 8 10 RB2 1759 000CN Control Panel Leaf Spring Table 8 6 on page 8 12 RB2 1772 000CN Tray 1 Leaf Spring Table 8 5 on page 8 10 RB2 1774 000CN Cartridge Guide Left Table 8 8 on page 8 17 RB2 1775 000CN Cartridge Guide Right Table 8 8 on page 8 17 RB2 1780 000CN Paper Guide Table 8 8 on page 8 17 EN Illustrations and Parts Lists 8 47 Part Number Description Table Number and Page RB2 1781 000CN Paper Sensor Lever Table 8 7 on page 8 14 RB2 1782 000CN Paper Sensor Lever Table 8 7 on page 8 14 RB2 1783 000CN RB2 1784 000CN RB2 1790 000CN RB2 1791 000CN RB2 1796 000CN RB2
44. RB2 1904 000CN Table 8 13 on page 8 25 Transfer Roller Bushing right RB2 1903 000CN Table 8 13 on page 8 25 Transfer Roller Bushing Cover right RB2 1905 000CN Table 8 13 on page 8 25 Transfer Roller Spring left RS5 2431 000CN Table 8 13 on page 8 25 Tray 1 Leaf Spring Tray 1 and 2 Pickup Shaft Left Bushing RB2 1772 000CN RS5 1392 000CN Table 8 5 on page 8 10 Table 8 8 on page 8 17 Tray 1 Paper Guide RG5 3548 000CN Table 8 5 on page 8 10 Tray 1 Paper Guide Plate Assembly Tray 1 Pickup Assembly Tray 1 Pickup Gear Tray 1 Pickup Roller Assembly Tray 1 Sensor Arm Tray 1 Sensor Arm Spring Tray 1 Separation Pad with Spring RG5 3520 000CN RG5 3519 000CN RB1 6130 000CN RG5 3519 000CN RB1 6134 000CN RB1 6136 000CN RG5 3585 000CN Table 8 7 on page 8 14 Table 8 4 on page 8 8 Table 8 8 on page 8 17 Table 8 8 on page 8 17 Table 8 5 on page 8 10 Table 8 5 on page 8 10 Table 8 7 on page 8 14 Tray 2 Hook Tray 2 Pickup Roller Shaft Tray 2 Rail Left RB1 2190 000CN RB2 1800 000CN RF5 2397 000CN Table 8 8 on page 8 17 Table 8 12 on page 8 23 Table 8 8 on page 8 17 Tray 2 Rail Right RF5 2398 000CN Table 8 8 on page 8 17 Tray 2 Shaft Gear RS5 0695 000CN Table 8 8 on page 8 17 Tray Cover 250 sheet Feeder Tray Cover 500 sheet Feeder RB2 2037 000CN RB2 3247 000CN Table 8 16 on page 8 31 Table 8 22 on page 8 39 Tray Extension RB
45. Roller one Tray 1 Separation Pad two 250 sheet Tray Pick Rollers two 250 sheet Tray Separation Pads and Springs four 500 sheet Tray Pick D Rollers and two 500 sheet Tray Feed Separation Rollers Refer to the instructions included in the kit for detailed replacement procedures Reset Maintenance Count After the PM kit has been installed reset the maintenance count 1 Turn the printer off 2 While pressing ltem and Value turn the printer on Reset Maintenance Count appears followed by a few seconds appears Expected Life of Components The following table shows the expected life of certain components in the printer To order parts see Chapter 8 Table 4 2 Life of Components Part name 1 Pickup Roller 2 Separation Pad 3 Tray 1 Pickup Roller 4 Tray 1 Separation pad 5 Fuser 110 127V 220 240V EN Part No RB2 1821 000CN RF5 2435 000CN RB2 1795 000CN RF5 2400 000CN RG5 3528 000CN RG5 3529 000CN Quantity Expected Life 1 150 000 pages 1 150 000 pages 1 150 000 pages 1 150 000 pages 1 150 000 pages 1 150 000 pages Preventative Maintenance 4 5 Table 4 2 Life of Components continued Part name Part No 6 Transfer Charging RG5 3579 000CN Roller 7 Exhaust Fan RH7 1354 000CN 4 6 Printer Maintenance Quantity Expected Life 1 150 000 pages 1 25 000 hours EN EN Functional Information Overview This chapter discusses the following Power Supply
46. See table 7 3 No AC Power on page 7 8 and table 7 4 No DC Power on page 7 9 Set the switch to the on position You should hear the switch toggle If the Front Right Side Cover has been removed recently be sure that the rod leading to the power supply moves as the rocker switch is toggled Note Fan operation is significant since the Fan is controlled by the printer s Engine Controller Board An operational Fan indicates the following 1 AC power is present in the printer 2 DC power supply is functional 24 VDC 5 VDC and 3 4 VDC are being generated If the Fan is not working 1 Turn off the printer and remove the printer s Formatter PCA Disconnect all the printer s paper handling options 2 Turn on the printer and check the Fan again If the Fan is still not working perform the following steps 1 Verify that the Fan is connected to the DC Controller Assembly 2 Replace the Fan 3 Replace the Power Supply If the Fan is working but the printer s Control Panel is blank 1 Print an engine test See Engine Test on page 7 9 If the engine test is successful perform the following steps a Reseat the Control Panel and Formatter connector b Replace the Control Panel assembly c Replace the Formatter d Replace the cable from the Control Panel 2 If the engine test is not successful replace the Power Supply Troubleshooting the Printing System 7 7 Table 7 3 No AC Power Caus
47. and PS1306 in the paper path to detect the paper If the paper does not reach or pass through any of the sensors within the specified period of time the microprocessor CPU on the DC Controller PCA notifies the Formatter of a paper jam Clutches and Sensors See Reference Diagrams starting on page 7 79 for locations of switches sensors and clutches 5 30 Functional Information EN EN Printing from Tray 1 The presence of paper in Tray 1 is detected by the Tray 1 Paper Sensor PS401 When the Formatter PCA sends the PRNT print signal to the printer the CPU turns the Tray 1 pickup solenoid SL404 on within the specified period of time for the main motor M1 and the scanner motor to start and the printer to be ready to print This turns the cam on and lifts the middle plate where the paper is loaded The paper touches the Tray 1 feed roller The Tray 1 feed roller rotates a full circle to feed one sheet of paper Extra sheets are removed with the separation pad and only one sheet is fed into the printer as the Tray 1 feed roller rotates The paper passes through the registration roller paper sensor PS403 and stops at the registration roller that is not turning loops the leading edge of the paper and corrects its skew The CPU turns the registration roller clutch CL405 on within a specified loop forming time and feeds the paper through the transfer unit the separation unit the fuser and the delivery unit and
48. and a supply of toner At 5 page coverage a Toner Cartridge will print approximately 10 000 pages However a Toner Cartridge should print more pages if regularly printing pages with less coverage such as short memos The cartridge may print fewer pages if routinely printing dense print Note For best results always use a Toner Cartridge before the expiration date stamped on the Toner Cartridge s box Refilled Toner Cartridges While Hewlett Packard does not prohibit the use of refilled Toner Cartridges during the warranty period or while the printer is under a maintenance contract it is not recommended for the following reasons e Repairs resulting from the use of refilled Toner Cartridges are not covered under Hewlett Packard warranty or maintenance contracts e Hewlett Packard has no control or process to ensure that a refilled Toner Cartridge functions at the high level of reliability of a new HP LaserJet Toner Cartridge Hewlett Packard also cannot predict what the long term reliability effect on the printer is from using different toner formulations found in refilled cartridges e The print quality of HP LaserJet Toner Cartridges influences the customer s perception of the printer Hewlett Packard has no control over the actual print quality of a refilled Toner Cartridge Recycling Toner Cartridges In order to reduce waste Hewlett Packard offers a recycling program for used Toner Cartridges Cartridge components that
49. areas that are not being used 1 Turn the printer off then turn the printer on 2 Reseat Duplexer Troubleshooting the Printing System 7 37 Table 7 6 Numerical Printer Messages continued Control Panel Event Explanation Message Log Message The printer detected an error The numbers indicate the specific type o error 7 38 Troubleshooting Recommended Action 1 Turn the printer off and then turn the printer on 2 Try printing a job froma different software application If the job prints go back to the first application and try printing a different file If the message only appears with a certain software application or print job have the customer contact the software vendor for assistance If the message persists try the following 1 Cycle power 2 Reseat or replace the interface cable and cycle power 3 Remove the DIMMs one at a time and cycle power 4 Try using the parallel interface if possible 5 With the ElO cards removed from the printer perform a cold reset 6 If the error persists replace the Formatter EN Table 7 6 Numerical Printer Messages continued Control Panel Message EN Event Log Message Explanation The EIO accessory in slot has encountered a critical error as specified by X Description 1 EIO slot 1 The printer detected an error with the EIO card 2 EIO slot 2 The printer detected an error with the
50. before the DIMM installation If the amount of memory has not increased the DIMM might not be installed correctly repeat the installation procedure or the DIMM might be defective try a new DIMM 4 See Chapter 7 Troubleshooting for additional information Installing EIO Cards Mass Storage Turn off the printer before installing the EIO card or mass storage device Slots will accommodate either type of device For more information see Appendix C in the User s Guide User Installable Accessories 6 5 Installing EIO Cards or Mass Storage Devices Figure 6 1 EN 6 6 Removing and Replacing Parts Removal and Replacement Strategy WARNING Hint CAUTION EN This chapter documents removal and replacement of major assemblies Replacement is generally the reverse of removal Occasionally information is included to provide direction for difficult or critical replacement procedures Unplug the power cord from the power outlet before attempting to service the printer If this warning is not followed severe injury may result Never operate or service the printer with the protective cover removed from the Laser Scanner assembly The reflected beam although invisible can damage your eyes This printer has some sharp sheet metal edges which can cause injury To install a self tapping screw first turn it to the left until it clicks indicating the threads are seated Then turn it to the right to
51. configuration is set the same as the computer from the I O Menu in the printer s Control Panel 2 The serial baud rate setting can be accessed from the I O Menu in the printer s Control Panel 3 Press Go to clear the error message and continue printing 1 Turn the printer off and reseat the card 2 Press Go to clear the error message and continue printing EN Table 7 6 Numerical Printer Messages continued Control Panel Event Message Log Message alternates with EN Explanation The paper size you are trying to print is not the same as the settings for the tray A temporary printing error occurred X Description 1 Unknown misprint error 2 Beam detect error 4 No VSYNC error 5 Media feed error 9 Noise VSREQ error Recommended Action 1 Make sure that all trays are correctly adjusted for size The size displayed on the front of the paper tray must match the size of paper loaded in the tray The printer will continue trying to print the job until size settings are correct If you are trying to print from Tray 1 make sure the printer s Control Panel setting for paper size is correctly configured 2 After performing the actions above press Go The page containing the error will automatically be reprinted Or you might want to press Cancel Job to clear the job from the printer s memory Press Go The page containing the error will automaticall
52. do not wear out are recycled Plastics and other materials are recycled HP pays the shipping costs from the user to the recycling plant To join this recycling effort follow the instructions inside the Toner Cartridge s box 2 8 Service Approach EN Warranty Statement This warranty gives specific legal rights There may also be other rights which vary from area to area Refer to the User s Guide for further warranty information or see the warranty card included with the printer EN Warranty Statement 2 9 2 10 Service Approach EN EN Printer Operation Overview This chapter discusses the following Using the Control Panel Control Panel Menus Service Mode Testing the Printer Resetting the Printer System Configuration Printer I O Configuration Overview 3 1 Using the Control Panel Figure 3 1 Control Panel Layout The printer s Control Panel consists of the following 2 line display e euiention Go Menu Item Value Cancel Job Select Control Panel Layout Control Panel Lights Table 3 1 Control Panel Lights Light Ready Data Attention Indication The printer is ready to print The printer is processing information Action is required See the Control Panel display 3 2 Printer Operation EN Control Panel Keys Table 3 2 Control Panel Keys Key Go Cancel Job Menu Item Value Select EN Fun
53. e R2 2 At Reversing motor P3 R3 3 B1 Reversing motor drive signal P4 R4 AY a4 i E gt ee E SBUSNSR Reversing unit connection gt ie check signal J1705 1 lt Side a registration 4 1A2 Side registration guide drive guide drive 4 B2 motor drive signa motor B2 J J1706 1 A3 5 21 a3 Refeed motor 3 B3 Refeed motor drive signal 4 B3 J1755 J1754 J1753 J1704 MTRPWR 24V Duplexing unit A P12 R12 7 deflector drive SL1701 3 x J A z solenoid 2l PI RN S DXSLD Paper enters the duplexing unit when H Figure 7 14 Duplexing Unit EN Reference Diagrams 7 85 J1756 J1754 J1753 J1704 PS1701 Reversing 3 8 Be a unit paper 5 B7 R7 40 sensor Side _PS1702 registration guide home position sensor PS170314768 3 Refeed paper sensor 2 i Figure 7 15 Duplexing Unit 7 86 Troubleshooting Duplexing unit driver PCA PHDRV 5V DXSWBS H when sensor detects paper PHDRV 5V HREGS L when the home position is detected PHDRV 5V DXPAS H when sensor detects paper EN DC controller PCA Serial line Duplexing driver PCA Duplexing unit deflector drive signal DXSLD Refeed motor drive signal Reversing motor drive signal Refeed paper signa DXPRS Side registration guide home position signal HREGS Side registration guide drive motor drive signal Feed roller1 Feed roller 2 Refeed rolier
54. font selected Press Value once to change the setting by increments of 01 for pitch or hold down Value to scroll by increments of 1 Select any one of several available symbol sets from the printer s control panel A symbol set is a unique grouping of all the characters in a font PC 8 or PC 850 is recommended for line draw characters Order the PCL 5 PJL Technical Reference Documentation Package for symbol set charts or for more information see the user s guide Control Panel Menus 3 15 Table 3 7 Printing Menu continued Item Values 3 16 Printer Operation Explanation Select the version of Courier font to use The internal Courier font available on the HP LaserJet 4 series printers The internal Courier font available on the HP LaserJet III series printers Both fonts are not available at the same time The Wide A4 setting changes the number of characters that can be printed on a single line of A4 paper i Up to 78 10 pitch characters can be printed on one line Up to 80 10 pitch characters can be printed on one line Select VE to append a carriage return to each line feed encountered in backward compatible PCL jobs pure text no job control Some environments such as UNIX indicate a new line using only the line feed control code This option allows the user to append the required carriage return to each line feed Select to print th
55. in reverse and the paper refeeds into the duplexing unit EN Uncurling guide i Printer Fusing film unit PS1306 ie Reversing roller 2 oma Pressure roller Feed guide C Reversing roller 3 Figure 5 25 Pause Mode Dance Mode Dance mode reduces paper curl by refeeding paper into the duplexing unit three times The paper refeeds into the duplexing unit about 30 mm by using the pause mode Then the duplexing driver PCA rotates the reversing motor PM1701 counter clockwise CCW and the reversing rollers 1 2 and 3 rotate in reverse In this way the paper comes out from the duplexing unit about 125 mm and pauses Then the duplexing driver PCA rotates PM1701 clockwise CW Accordingly the reversing rollers 1 2 and 3 are rotated in reverse and the paper refeeds into the duplexing unit about 125 mm After this returning and refeeding process is repeated three times the paper refeeds into the duplexing unit EN Paper Feed System 5 43 Uncurling guide i Printer Fusing film unit PS1306 mi a Backward i Forward i Pressure roller Feed guide Reversing roller 3 Figure 5 26 Dance Mode Paper Jam in the Duplexer The following sensors are located to detect the presence of paper and to determine whether the paper is correctly fed reversing unit paper sensor PS1701 e refeed paper sensor PS1703 If the paper does not reach or pass through any of
56. it EN Removing Assemblies 6 53 Tray 2 Shaft 1 Remove the Top Cover page 6 12 Left and Right Side Covers page 6 23 Pickup Gear Assembly page 6 36 and Paper Handling PCA page 6 31 Remove the spring from the gear on the left side of the shaft Align the solenoid arm B see Figure 6 43 with the gap in the gear on the left side of the printer 4 Press the release tabs A outward and slide the gear off the shaft 5 Remove the bushing on the right side of the shaft by lifting the release tab and sliding it off the shaft 6 Slide the shaft to the right then angle it out of the chassis i Q Figure 6 43 Tray 2 Shaft left side view of printer Item Explanation A Release Tabs B Solenoid Arm C Gap 6 54 Removing and Replacing Parts EN Reassembly Steps 1 Tip the printer back so that the front faces up 2 Insert the shaft into the fitting on the right side Then angle the shaft into the other side 3 Place the bushing on the right end of the shaft and push until the tab locks in the indentation in the shaft 4 Facing the left side of the printer orient the shaft so that the open end points away from the solenoid See Figure 6 44 5 Depress the solenoid arm and slide the gear into place Press it into the plastic collar until it locks in place 6 Reinstall the spring on the arm of the gear Figure 6 44 Reassembly of Tray 2 Shaft Item Explanation
57. of a problem always print a Configuration Page See the HP JetDirect Print Server Software Installation Guide for detailed explanations of network issues 7 76 Troubleshooting EN HEWLETT HP LaserJet 5000 series printers LA eackann EIO 1 JETDIRECT PAGE 1 JetDirect Configuration Page Network statistics GENERAL INFORMATION HP JETDIRECT J3111A NETWORK STATISTICS FIRMWARE REVISION 6 05 35 UNICAST PACKETS RCVD 19 LAN Hw ADDRESS 0060B0438C6F TOTAL PACKETS RCVD 15469 PORT SELECT 10BASE T_ RJ45 BAD PACKETS RCVD 0 MFG ID 37273727 200535 FRAMING ERRORS RCVD 0 PACKETS TRANSMITTED 91 I 0 CARD READY UNSENDABLE PACKETS 0 Z AMET CATE COLLISIONS 4 XMIT LATE L 2 I O card status PROTOCOL INFORMATION TCP IP STATUS READY APPLETALK STATUS READY ETALK NET 65281 NODE 142 P2 APPLETALK NaMe NP LaserJet 500 At aserJet IP address aaa ETALK ZONE CONFIG BY FRONT PANEL TELNET IP ADDRESS 15 98 40 165 SUBNET MASK 255 255 248 0 DEF GATEWAY 15 98 40 1 SYSLOG SERVER NOT SPECIFIED DLC LLC STATUS READY IDLE TIMEOUT SECONDS 90 WEBJA SERVER NOT SPECIFIED NOVELL STATUS 16 NOVELL RETRANS 0 NOT CONFIGURED NETWORK FRAME TYPE RCVD MODE QUEUE SERVER UNKNOWN EN 802 2 1123 NODE NAME UNKNOWN 102 y NPT438C6F UNKNOWN 86 Node name Novell status Figure 7 7 EN JetDirect Configuration Page Troubleshooting the Printing System 7 77 JetDirect Configuration If the EIO JetDirect Card
58. of pacing used Pacing or handshaking allows the printer to tell the computer when to send information The printer uses XON XOFF and DTR DSR signal Apa rather than ETX ACK protocol 1 Select this value if your computer requires hardware flow control most personal computers do Select this value if your computer requires software flow control a UNIX workstation for example The item appears see below Control Panel Menus 3 25 Table 3 9 I O Menu continued Item Values 3 26 Printer Operation Explanation This item appears only when Select the method for generating XONs fH The printer sends an XON when the printer is online and when sufficient buffer space is available If the host does not receive data within approximately one second the printer will transmit additional XONs at one second intervals until the host receives data GFF The printer sends one XON when it can accept more data or when it is online The printer does not send XONs every second while the printer is online and ready for more data Select the printer s baud rate speed at which information is transferred for communicating from the computer to the printer Determine whether pin 8 is high or low when H printer is ready HIGH Pin 8 is held high when the printer is ready i Pin 8 is held low when the printer is ready EN EIO Menu Networked Printers EIO Enhanced Input
59. of the Half Self Test Check is to determine which process is malfunctioning Perform the test as follows 1 Print a Configuration Page from the Control Panel i 2 Open the top cover after the paper advances half way through the printer about five seconds after the Main Motor begins rotation The leading edge of the paper should have advanced past the Toner Cartridge Remove the Toner Cartridge Open the Toner Cartridge s drum shield to view the drum s surface If a dark and distinct toner image is present on the drum s surface assume that the first four functions of the electrophotographic process are functioning cleaning conditioning writing and developing see Chapter 5 and troubleshoot the failure as a transfer or fusing problem If no image is present on the photosensitive drum perform all the following functional checks 7 74 Troubleshooting EN Note EN Drum Rotation Functional Check The photosensitive drum located in the Toner Cartridge must rotate for the print process to work The photosensitive drum receives its drive from the Main Drive assembly To verify whether the drum is rotating 1 Open the top cover 2 Remove the Toner Cartridge 3 Mark the cartridge s drive gear with a felt tipped marker Note the position of the mark 4 Install the Toner Cartridge and close the top cover The start up sequence should rotate the drum enough to move the mark 5 Open the printer and inspect t
60. outputs it onto the tray Paper Feed System 5 31 Lifting plate cam AN Lifting plate Tray 1 pick up roller k s Clutch cam NO N SSK GY Clutch lever Tray 1 pick up solenoid Figure 5 17 Tray 1 Pickup 5 32 Functional Information EN Printing from Tray 2 When the Formatter PCA sends the PRNT print signal to the printer the CPU turns the Tray 2 pickup solenoid SL306 on about 0 15 seconds after the main motor M1 starts rotating then turns on the feed roller clutch CL406 The main motor rotates the Tray 2 pickup roller and feed roller The Tray 2 pickup roller rotates a full circle with the Tray 2 pickup solenoid SL306 and picks up one sheet of paper from the tray The paper is fed into the printer as the feed roller rotates The paper passes through the registration roller paper sensor PS403 and stops at the registration roller that is not turning loops the leading edge of the paper and corrects its skew The CPU turns the feed roller clutch CL406 off within a specified loop forming time and stops the feed roller rotation The CPU turns the registration roller clutch CL405 and feed roller clutch CL406 on about 1 3 seconds after the scanner becomes ready and feeds the paper through the transfer unit separation unit fuser and delivery unit and outputs it onto the tray DC controller PCA 3 o o 2b z of Terminal PCA on aS ae 2s
61. print quality problems jamming or damage to the printer For more specific information see Image Defects on page 7 50 Table 1 10 Guidelines for Using Paper Symptom Poor print quality or toner adhesion Problems with feeding Dropouts jamming curl Increased gray background shading Excessive curl Problems with feeding Jamming damage to printer Problems with feeding EN Problem with Paper Too moist too rough too smooth or embossed faulty paper lot Stored improperly Too heavy Too moist wrong grain direction or short grain construction Cutouts or perforations Ragged edges Solution Try another kind of paper between 100 250 Sheffield 4 6 moisture content Store paper flat in its moisture proof wrapping Use lighter paper Open the rear output bin Open the rear output bin Use long grain paper Set Set Do not use paper with cutouts or perforations Use quality paper Paper Specifications 1 15 Note Do not use letterhead paper that is printed with low temperature inks such as those used in some types of thermography Do not use raised letterhead The printer uses heat and pressure to fuse toner to the paper Make sure that any colored paper or preprinted forms use inks that are compatible with the printer s temperature 392 F or 200 C for 0 1 second 1 16 Printer Description EN Paper Weight Equivalence Table Use this tab
62. program to load 1 Load the requested paper into Tray 1 2 Press Go if the desired paper is already loaded in Tray 1 3 Press Value to scroll through the available types and sizes 4 Press Select to accept the alternate type or size EN Table 7 5 Alphabetical Printer Messages continued Control Panel Message Message EN EventLog Explanation There is no available memory in the printer The current job might not print correctly and some resources such as downloaded fonts or macros might have been deleted The printer changed its memory settings because it did not have enough memory to use the previous settings for I O Buffering and Resource Saving This usually occurs after removing memory from the printer adding a Duplexer or adding a printer language The printer did not have enough free memory to print the entire job The remainder of the job will not print and will be cleared from memory The printer had to compress the job in order to fit it in available memory Some data loss might have occurred The printer is offline Recommended Action The customer might want to add more memory to the printer or simplify the print job You might want to change memory settings for I O Buffering and Resource Saving although default settings are usually best or add more memory to the printer 1 Press G0 to continue 2 Change the Resource Saving set
63. rollers Refer to cleaning procedures in Chapter 4 Determine from PCL Configuration Page the number of pages since the last maintenance page 7 45 The Printer Maintenance Kit should be installed every 150 000 images Troubleshooting the Printing System 7 41 Paper Path Test To perform a Paper Path Test Press Menu until 1 Press ltem until Press Select Press to cycle selections until the desired paper tray appears Press Select oa fF WO N Press until the desired output bin appears open the rear output bin to print to it Press Select Press until the desired duplex mode on or off appears Press Select 10 Press to cycle selections until the desired number of copies appears Choose 1 10 50 100 or 500 copies 11 Press Select to perform the Paper Path Test 7 42 Troubleshooting EN EN Information Pages From the printer s control panel you can print pages that give details about the printer and its current configuration The following information pages are described here e Menu Map e Configuration Page PCLor PS Font List For a complete list of the printer s information pages print a Menu Map and see the Information Menu listed Menu Map To see the current settings for the menus and items available in the control panel print a control panel menu map 1 Press Men until 2 Press ltem until F 3 Press Select to print the menu map The
64. screws securing the Sensor to the chassis Remove the Sensor feeding the cable through the opening in the chassis Figure 6 48 Paper Path Detect Sensor Item Explanation A Screws EN Removing Assemblies 6 59 Face Down Bin Full Sensor 1 Remove the Top Cover page 6 12 Rear Door Rear Output Bin page 6 10 and Left and Right Side Covers page 6 23 2 The Face Down Bin Full Sensor is located on the top of the Upper Delivery Assembly Release the two clips A Figure 6 50 and slide the Sensor to the right to remove it Figure 6 49 Face Down Bin Full Sensor Item Explanation A Direction to slide sensor to remove it 6 60 Removing and Replacing Parts EN Figure 6 50 EN Detail of Bin Full Sensor Item Explanation Clips Removing Assemblies 6 61 Power Connection 1 Remove the Top Cover page 6 12 Left Side Cover page 6 23 and Rear Door Rear Output Bin page 6 10 Disconnect the two cables from the Power Connection Remove the two self tapping screws Remove the Power Connection SESS VSESCSGGeF eeeeeeeeee e e 6 0000009308 o eso Figure 6 51 Power Connection Item Explanation A Cables B Screws 6 62 Removing and Replacing Parts EN Registration Assembly 1 Remove the Top Cover page 6 12 Left Side Cover page 6 23 Pickup Gear Assembly page 6 36 and the Main Gear Assembly page 6 34
65. specifications Wrong output bin for Print to a different output bin paper type Troubleshooting the Printing System 7 59 AGBP Table 7 17 Distorted Image continued AOGBDPDTGT AGBP AGBP AGBLC Se AGBP AaBbCc AaBboCc AaBbbCc AaBoCc AQBoCc Possible Cause Poor connection of cables to the Laser Scanner Poor connection of cables to the DC Controller Assembly Defective Laser Scanner Defective Engine Controller Board Action Reseat the cables connected to the Laser Scanner Reseat the cables connected to the DC Controller Assembly Replace the Laser Scanner Replace the Engine Controller Board Table 7 18 Dropouts Possible Cause Paper might be too smooth Printer s operating environment does not meet specifications Wrong toner density setting Wrong Fuser setting for paper type Single sheet of paper defective 7 60 Troubleshooting Action Check the paper or other print media type and quality Make sure the printer s operating environment meets specifications From the Print Quality Menu on the Control Panel adjust the toner density setting Make sure EconoMode is off From the Paper Handling Menu on the Control Panel change the Fuser Mode setting or choose another paper type from the printer driver Try reprinting the job EN AQBbCc AaBboCc AabbCc AaBoCc EN AQBdCc Table 7 18 Dropouts continue
66. the printer Too much data was sent to the serial port Recommended Action Press Go to clear the message Data will be lost Check for a loose cable connection and be sure to use a high quality cable Some non HP parallel cables might be missing pin connections or might otherwise not conform to the IEEE 1284 specification Press Go to clear the error message Data will be lost 1 Make sure the correct serial pacing option is selected from the I O Menu in the printer s Control Panel 2 Print a Menu Map and verify that the serial pacing item from the I O Menu in the printer s Control Panel matches the setting on the computer 3 Press Go to clear the error message Data will be lost Troubleshooting the Printing System 7 29 Table 7 6 Numerical Printer Messages continued Control Panel Message alternates wit alternates with 7 30 Troubleshooting Explanation The printer encountered an error while transferring data from the computer The error might have occurred for several reasons The computer was powered on or off while the printer was online The printer s serial configuration does not match that of the computer The connection has been broken between the printer and the EIO card in the specified slot X Description 1 EIO Slot 1 2 EIO Slot 2 Recommended Action 1 Verify cable connections Make sure the printer s serial
67. the Bidirectional Interface The Formatter PCA receives a print job from the Bidirectional Interface and separates it into image information and instructions which control the printing process The DC Controller Board synchronizes the Image Formation System with the Paper Input and Output Systems and then signals the Formatter to send the print image data The Formatter PCA also provides the electrical interface and mounting locations for two EIO cards additional memory DIMMs and the Hard Disk accessory PowerSave This feature accessed from the Configuration Menu conserves power by shutting down the Fuser and exhaust fans after the printer has been idle for an adjustable period of time The printer retains all printer settings downloaded fonts and macros while in PowerSave mode The default setting is with a 30 minute idle time 5 12 Functional Information EN Note Note Note EN The printer exits PowerSave mode and enters the warm up cycle when any of the following occurs e A print job valid data or a PML or PUL command is received at the parallel port or an ElO card A Control Panel key is pressed The top cover is opened and then closed A paper tray is opened and then closed The Engine Test button is pressed Printer error messages override the PowerSave message The printer will enter PowerSave mode at the appropriate time but the error message will continue to be displayed Resolution Enhan
68. the Pickup Gear Assembly page 6 36 2 Remove the Tray 1 Solenoid by removing one black machine screw and sliding the Solenoid assembly away from the Pickup Gear Assembly Figure 6 29 Pickup Gear Assembly with Solenoid Item Explanation A Tray 1 Pickup Solenoid 6 38 Removing and Replacing Parts EN Fan 1 Remove the Top Cover page 6 12 and Right Side Cover page 6 23 Disconnect the cable that supplies power to the fan Remove the two self tapping screws securing the fan to the chassis 4 Remove the fan from the chassis Figure 6 30 Fan right side view of printer Item Explanation A Screws B Power Cables EN Removing Assemblies 6 39 Formatter Assembly 1 Print a Configuration Page if possible to use as a reference when reinstalling the new formatter Remove any EIO accessories from the EIO slots Facing the back of the printer loosen the two thumbscrews and slide the Formatter Assembly out 4 Remove any DIMMs from the DIMM slots Figure 6 31 Formatter Assembly Hint After reinstalling the formatter update the printer configuration if necessary comparing the configuration to the Configuration page printed in step 1 6 40 Removing and Replacing Parts EN Tray 1 Roller 1 Open the Top Cover and remove the Toner Cartridge 2 Facing the front of the printer raise the green center handle of the Registration Assembly 3 Depress the locking tab on th
69. the sensors within the specified period of time the microprocessor CPU on the DC Controller PCA notifies the Formatter of a paper jam 5 44 Functional Information EN Basic Sequence of Operation The Formatter PCA and the DC Controller Board share information during printer operation The Interface PCA forms a link which operates as a Serial data bus This allows printer status command and dot image data to be passed between the two PCAs Table 5 1 shows the general timing of the printer events The following events take place during normal printer operation Table 5 1 Printer Timing Period Timing WAIT From power on until the Main Motor completes the initial drive STBY standby From the end of the WAIT period until the PRNT signal is input from the Formatter or from the end of the LSTR period until the PRNT signal is input from the Formatter or until the power is turned off INTR initial rotation After the PRNT signal is input from the Formatter until the DC controller outputs the TOP signal PRINT From the end of the INTR period until the top of the paper sensor detects the trailing edge of the paper EN Purpose Remark Clears the drum surface potential and cleans the transfer charging roller During this period the printer detects the toner level and the presence of the cartridge Makes the printer ready to print Stabilizes the sensitivity of the photosensitive drum in pr
70. tighten Do not over tighten If a self tapping screw hole becomes stripped repair of the screw hole or replacement of the affected assembly is required The printer contains parts that are electrostatic discharge ESD sensitive Always service printers at an ESD protected workstation Required Tools e Phillips 2 magnetized screwdriver 6 inch shaft e Small flat blade screwdriver e Small needle nosed pliers All screws used in field replaceable printer components are Phillips head screws that require a 2 size Phillips screwdriver Figure 6 2 below shows the difference between a Phillips and a Posidriv screwdriver Note that the Phillips tip has more beveled surfaces Removal and Replacement Strategy 6 7 Phillips Posidriv Figure 6 2 Phillips vs Posidriv Screwdrivers Table 6 1 Screws Used in the Printer Drawing and Description Purpose Used to fasten metal to metal when good electrical contact is needed Threaded Phillips with captive star washer Used to fasten metal or plastic to plastic mainframes Silver Self tapping Phillips screw Used to fasten metal or plastic to plastic mainframes Black Self tapping Phillips screw 6 8 Removing and Replacing Parts EN Table 6 1 Screws Used in the Printer continued Drawing and Description Purpose Used to fasten metal or plastic to threaded plastic or metal Threaded Phillips screw with lock and flat washer Used to ground and alig
71. up motor pick up moto drive signals Paper feeder Si 2004 a j pick up solenoid SLON H to start paper pick up PS2001 J2004 3 Cassette ELED CSV L wh paperscheor when sensor detects paper PS2002 Feed roller paper sensor J21 05 1 J2004 10 FLED 5V FSENS L when sensor detects paper J2105 4 J2004 7 swo Cassette sts swe2102 5 6 swi paper size SW2103 6 5 Detects the paper size by the switch o o SW2 combination of these signals l as SW2104 7 4 sw3 2 9 l l I I 1 T 1 swaior O I 97e t l l th Figure 7 13 500 sheet Paper Feeder 7 84 Troubleshooting EN 3 Duplexing Unit Duplexing driver PCA 24V J1751 P9 P10 J1701 9 10 5V S P3 2 t a SCLK Serial clock signal A gt STRB Strobe signal To printer P14 ee gt RXDI Transmission data input signal gt Po TXDI Transmission data output signal PAPH ETF STERM _ Optional unit selection signal 24V 5 J1752 J9 J10 J1702 9 10 5V S J3 2 sie 7 scik Serial clock signal J13 6 gt STRB Strobe signal Topaperfeeder y wt 5 RXDO Transmission data input signal gt J s TXDO Transmission data output signal STERM Optional unit selection signal J4 J11 1 8 j i a J1754 P1 e J1753 R1 J1704 1 A1 P2
72. 1 Figure 7 16 Duplexing Unit EN Reference Diagrams 7 87 Figure 7 17 Sensors and Signals The drawing below shows key components sensors and switches that control the operation of the printer The table on page 7 90 shows the name of each sensor as well as the signal name and its destination or source Delivery rollers OV Fso 5 ie i Tray 1 egistration roller pickup roller Photosensitive drum SL404 OjO Pesos V J PS402 PS403 PS401 sA 2 zZ O V O 95 OOM Y Q Feed belt SAO 7 PS 1307C Oe Crag P5802 Feed PLO O roller Fuser Transfer roller St306 ae Se po 1 sw405 _ Ty 2 pickup e R ili o yac O an Qaa OO J e Pz fe 5 gt Optional 500 sheet tray 7 Paper Path and Components 7 88 Troubleshooting EN Figure 7 18 Paper Path dashed lines represent duplexer path EN Reference Diagrams 7 89 Table 7 32 Table 1 Sensors and Signals Sensor CL405 CL406 PS301 PS302 PS303 PS307 PS401 PS402 PS403 PS1307 PS1601 PS1701 PS1702 PS1703 SL306 SL404 Sw101 7 90 Troubleshooting Name Registration roller clutch Feed roller clutch Tray 2 paper sensor Tray 1 paper width sensor Face up tray open sensor Face down tray paper full sensor Tray 1 paper sensor Top of page sensor Registration roller paper sensor Fuser delivery paper s
73. 1 E l 24Vdr l Door switch 20 1 l l SW402 i Test print switch _ 5 5 TPRNT I I I SW403 L l rc PSIZE 1 LS A ae PSIZE 2 size SW405 i switch oo 9 12 pee I Sw406 l L PSIZE 4 l l l Variable resistor ior leading edge RGADJ registration l adjusment l Eae a ee ee i Figure 7 33 DC Controller PCA I O 1 of 4 EN DC controller PCA ASNSON 1 to tum sensor ON L when sensor detects paper L when sensor detects paper L to start engine test print Detects the paper size by the combination of these signals Variable resistor for leading edge registration adjustment of voltage output Reference Diagrams 7 107 5V DC controller PCA L when either the Rear Output Rear Output J303 18 Bin open 20 FUOPEN Bin is open sensor ISNSON st to turn the sensor ON 5V PS307 H when the Top Top Output J18 3 J307 1 Output Bin Bin paper gr 4 3 PAFULL becomes full full sensor E SNSON N L to turn the sensor ON supply I Spre bemi i g a S e alea ema ie p e aae l 5VY l l Fuser lJ201 J305 i Pea l 39 2 josns L when sensor detects sensor Paper I TH1301 l Fusing J1303 J1304 41305 41307 J104 J203 J201 J305 roller poe 2 2 2 i T s 37__ 4 FSRTH Asthe temperature of surface A ed 2 the fusing heater temperature rises the voltage b s
74. 1 Illegal input 2 Illegal output An error occurred with the Fan s motor X Description 1 Printer Fan A motor error occurred X Description 0 Motor error 1 Motor start up error 2 Motor rotation error Recommended Action 1 Press G0 The page containing the error will automatically be reprinted 2 Check power at the site 3 Replace the Formatter PCA 4 Replace the DC Controller 1 Press Go The page containing the error will automatically be reprinted 2 Turn the printer off and then turn the printer on 3 Check the printer s configuration 1 Check the Fan s connector and make sure the Fan is not blocked 2 Replace the Fan 1 Turn the printer off and then turn the printer on 2 Make sure the Fuser or Toner Cartridge is not hindering movement of gears in the drive train 3 Check the Main Motor s cable to ensure that it is seated properly 4 lf the error persists replace the Motor Troubleshooting the Printing System 7 35 Table 7 6 Numerical Printer Messages continued Control Panel Message alternates with 7 36 Troubleshooting Event Log Message Explanation There is a problem with the printers memory The value refers to the location of the problem 0 Internal memory 1 to 3 DIMM slots 1 2 or 3 A scan buffer error occurred An error occurred in an external paper handling device 1st X Device number in chain
75. 196 000CN Power Supply 220 240 V Table 8 19 on page 8 35 RH7 1354 000CN Fan Table 8 8 on page 8 17 RH7 1356 000CN Main Motor Table 8 17 on page 8 33 RH7 5192 000CN Paper Feed Clutch Table 8 7 on page 8 14 RH7 5193 000CN Pickup Solenoid Table 8 18 on page 8 36 RH7 5195 000CN Paper Pick Up Solenoid Table 8 7 on page 8 14 RS5 0695 000CN Tray 2 Shaft Gear Table 8 8 on page 8 17 RS5 1392 000CN Tray 1 and 2 Pickup Shaft Left Bushing Table 8 8 on page 8 17 RS5 2225 020CN Roller Spring Table 8 9 on page 8 21 RS5 2431 000CN Transfer Roller Spring left Table 8 13 on page 8 25 RS5 2434 000CN Spring Table 8 8 on page 8 17 RS5 2952 000CN Latch Plate Springs Table 8 5 on page 8 10 RS6 0351 000CN Paper Feed Gear Table 8 13 on page 8 25 RS6 0352 000CN Paper Feed Gear Table 8 13 on page 8 25 RS6 0357 000CN Lower Delivery Shaft Gear Table 8 7 on page 8 14 RS6 0367 000CN Delivery Roller Gear Table 8 11 on page 8 22 WG8 5362 000CN Photo Sensor Table 8 14 on page 8 27 WS6 5092 000CN Power Connector Table 8 7 on page 8 14 XA9 0265 000CN Screw M4x6 W Washer Table 8 2 on page 8 6 XA9 0267 000CN Screw M3x6 TP Table 8 2 on page 8 6 XA9 0815 000CN Screw M3x4 TP Table 8 2 on page 8 6 XA9 0838 000CN Screw M4x16 W Washer Table 8 2 on page 8 6 XA9 0974 000
76. 2 2020 000CN Table 8 16 on page 8 31 Tray Sensor Assembly 500 sheet Feeder RF5 2633 000CN Table 8 23 on page 8 41 Universal Tray Extension Lock RB2 2042 000CN Table 8 16 on page 8 31 Upper Delivery Assembly RG5 3542 000CN Table 8 11 on page 8 22 Upper Contact Cable 500 sheet Feeder RG5 4213 000CN Table 8 23 on page 8 41 Upper Delivery Roller Assembly RG5 2648 000CN Figure 8 8 on page 8 22 8 46 Parts and Diagrams EN Numerical Parts List Part Number Description Table Number and Page C3974 69001 Formatter Assembly C4116A 250 sheet Universal Paper Tray Table 8 16 on page 8 31 C4110 40004 Control Panel Overlay English Table 8 6 on page 8 12 RB1 2190 000CN Tray 2 Hook Table 8 8 on page 8 17 RB1 6130 000CN Tray 1 Pickup Gear Table 8 8 on page 8 17 RB1 6134 000CN Tray 1 Sensor Arm Table 8 5 on page 8 10 RB1 6136 000CN Tray 1 Sensor Arm Spring Table 8 5 on page 8 10 RB1 6141 O00CN Grounding Plate Table 8 7 on page 8 14 RB1 6149 000CN Left Pickup Roller Bushing Table 8 12 on page 8 23 RB1 6177 000CN Pickup Shaft Bushing Tray 1 and2 Table 8 8 on page 8 17 RB1 6179 000CN Pickup Shaft Bushing Tray 1 and2 Table 8 8 on page 8 17 RB1 6192 000CN Paper Feed Shaft Table 8 13 on page 8 25 RB1 6195 000CN Paper Feed Pulley Table 8 13 on page 8 25 RB1 6251 000CN Lower Delivery Roller Table 8 9 on page 8 19
77. 3 37 MS DOS System Configuration 045 3 37 Parallel DOS Commands 00000 0c eeee 3 37 Serial MS DOS Commands 02000000 3 38 Printer I O Configuration 00000 e eee eee 3 39 Parallel Menu 00 00 cece eee 3 39 Serial Configuration 000 00 cee ee 3 39 4 Printer Maintenance OVErVIEW 1 eee neta 4 1 Cleaning the Printer and AccessorieS 0000005 4 2 Cleaning Spilled Toner 200 000 cee eee 4 4 Preventative Maintenance 00 cece eee ee eee 4 5 Reset Maintenance Count 000 eee eee 4 5 Expected Life of Components 0 05 4 5 EN EN 5 Functional Information OVGIVIOW cece ee eee ke pene eee nee ee E O he hee ens o 5 1 Printer SubsystemS 000 00 cee ee 5 2 Power Supply System n unana 0000 c eee eee 5 3 AC DC Power Distribution 0 000 eee 5 3 Overcurrent Overvoltage Protection 5 5 High Voltage Power Distribution 5 5 6 Toner Cartridge Detection 0 00 00 5 7 DC Controller System 0 0000 e ee eee 5 7 Laser and Scanner Drive 0000 0c ee eae eee 5 8 Paper Motion Monitoring and Control 5 9 Solenoids Sensors Clutches and Switches 5 9 Engine Test Print 0 0 0 c cece eee eee 5 9 Motors 2 eee 5 10 Formatter System 1 2 0 0 0c eee 5 12 POWEISAVG 422 bebe eee hae ORS EG
78. 60 135 g m card stock should have a smoothness rating of 100 250 Sheffield Construction Card stock should lie flat with less than 0 2 in 5 mm of curl Condition Make sure card stock is not wrinkled nicked or otherwise damaged Sizes Use only card stock within the following size ranges e minimum 3 by 5 in 76 by 127 mm e maximum 12 28 by 18 5 in 312 by 470 mm Before loading card stock in Tray 1 make sure it is regular in shape and not damaged Also make sure the cards are not stuck together Card Stock Guidelines If cards curl or jam try printing from Tray 1 and opening the rear output bin Set margins at least 0 08 in 2 mm away from the edges of the paper Paper Specifications 1 21 Safety Information WARNING Laser Safety Statement The Center for Devices and Radiological Health CDRH of the U S Food and Drug Administration has implemented regulations for laser products manufactured since August 1 1976 Compliance is mandatory for products marketed in the United States The printer is certified as a Class 1 laser product under the U S Department of Health and Human Services DHHS Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968 Since radiation emitted inside the printer is completely confined within protective housings and external covers the laser beam cannot escape during any phase of normal user operation Using controls making adjust
79. 7 000CN Front Inner Cover Assembly Table 8 5 on page 8 10 RG5 3550 000CN Left Side Cover Assembly Table 8 5 on page 8 10 RG5 3552 000CN Face Up Tray Assembly Table 8 5 on page 8 10 RG5 3553 000CN Rear Door Sensor Assembly Table 8 7 on page 8 14 RG5 3554 000CN Cable Paper Sensor Figure 8 4 on page 8 14 RG5 3557 000CN Cable Display Accessory Power Figure 8 4 on page 8 14 Photo Sensor RG5 3558 000CN Cable Paper Sensor Figure 8 4 on page 8 14 RG5 3560 000CN Paper Handling PCA Table 8 19 on page 8 35 RG5 3561 000CN Cable Fuser AC Table 8 10 on page 8 21 RG5 3562 000CN Cable Scanner Table 8 10 on page 8 21 RG5 3579 000CN Transfer Roller Assembly Table 8 10 on page 8 21 RG5 3585 000CN Tray 1 Separation Pad with Spring Table 8 7 on page 8 14 RG5 3603 000CN Laser Scanner Assembly Table 8 10 on page 8 21 RG5 3604 000CN Control Panel Assembly Table 8 6 on page 8 12 RG5 4180 000CN Left Frame Assembly Table 8 22 on page 8 39 RG5 4211 000CN Feeder Controller PCA Assembly Table 8 23 on page 8 41 500 sheet Feeder RG5 4213 000CN Upper Contact Cable 500 sheet Table 8 23 on page 8 41 Feeder RH2 5337 000CN Flat Cable Table 8 20 on page 8 36 8 50 Parts and Diagrams EN Part Number Description Table Number and Page RH2 5338 000CN Cable Ribbon from Paper PCA to Controller Figure 8 4 on page 8 14 RH3 2195 000CN Power Supply 100 120 V Table 8 19 on page 8 35 RH3 2
80. 70 Troubleshooting Action Remove the cartridge and reinsert it Replace the cartridge Refer to Repetitive Image Defect Ruler EN AaBbCc AaBbCc AaBbCc AaBbCc AABRCS EN Table 7 30 Vertical Dots Possible Cause Dirty static eliminator teeth Poor contact between the Static Eliminator and the Engine Controller Board Deformed or deteriorated Transfer Roller Defective DC Controller Assembly Action Clean the static eliminator Clean the contacts if dirty If the problem remains after cleaning or if parts are damaged or deformed replace them Replace the Transfer Roller Replace the DC Controller Assembly Possible Cause Toner Cartridge is nearly empty This can cause uneven toner distribution Toner Cartridge has been exposed to too much light Foreign objects in beam path Any foreign objects will block the light from developing an image on the Photosensitive drum P Table 7 31 Vertical White Lines Action Remove the Toner Cartridge and shake it gently The cartridge will soon require replacement Store the Toner Cartridge in a darkened environment for several days This may restore the photosensitive potential Remove the Toner Cartridge and check for damage Replace the Toner Cartridge if it is damaged Remove the Printer Cover and inspect the path from the Laser Scanner to the Toner Cartridge drum looking for foreign objects in the bea
81. 8 MB total is required to order for this item to appear The amount of memory set aside can be different for each installed language Some languages might have memory set aside for resource saving without requiring all languages to do so Any time the amount of memory dedicated to a specific language is changed all languages will lose all saved resources including any unprocessed print jobs FF No language resource saving is performed and language dependent resources such as fonts and macros are lost when language or resolution changes OH An item will appear for each installed language that allows the user to allocate a particular amount of memory to that language s resource saving area See the items below ALTO The printer automatically determines the amount of memory to use for each installed language s resource saving area see this message and up This item appears only whe This value depends on Select the amount of memory the amount of installed used for saving PCL resources Printer memory 8 MB totalis default is the minimum amount of memory required to see this needed to perform resource saving for message PCL Press Value to change settings by increments of 10 up to 100 KB or by increments of 100 above 100 KB 3 18 Printer Operation EN Table 3 8 Configuration Menu continued Item Values Explanation k and up This item appears only when This value depends on
82. 906 000CN Table 8 6 on page 8 12 Control Panel Assembly RG5 3604 000CN Table 8 6 on page 8 12 Control Panel Leaf Spring RB2 1759 000CN Table 8 6 on page 8 12 Control Panel Overlay English C4110 40004 Table 8 6 on page 8 12 Cover Support Strap RB2 1977 000CN Table 8 5 on page 8 10 Damper 500 sheet Feeder RB1 8883 000CN Table 8 23 on page 8 41 DC Controller RG5 3517 000CN Table 8 19 on page 8 35 DC Controller with Ribbon Cable RG5 3517 000CN 110V RH2 5337 000CN 220V Figure 8 16 on page 8 35 Delivery Guide Delivery Roller RF5 2415 000CN RB2 1984 000CN Table 8 11 on page 8 22 Table 8 11 on page 8 22 Delivery Roller Gear RS6 0367 000CN Table 8 11 on page 8 22 Door Switch RB2 1732 000CN Table 8 9 on page 8 19 Door Switch Spring RB2 1739 000CN Table 8 9 on page 8 19 E Ring XD2 1100 322CN Table 8 2 on page 8 6 Face Down Auxiliary Cover RB2 1747 000CN Table 8 5 on page 8 10 Face Down Bin Full Sensor Lever Face Down Guide Roller Face Up Deflector Face Up Tray Assembly Fan Feed Roller 500 sheet Feeder 8 42 Parts and Diagrams RB2 1980 000CN RB2 1996 000CN RB2 1978 000CN RG5 3552 000CN RH7 1354 000CN RF5 2634 000CN Table 8 11 on page 8 22 Table 8 9 on page 8 19 Table 8 5 on page 8 10 Table 8 5 on page 8 10 Table 8 8 on page 8 17 Table 8 23 on page 8 41 EN Description Part Number Table Number and
83. CA eackanD Expanding Possibilities English HP LaserJet 5000 5000 N and 5000 GN Printers Service Manual HP LaserJet 5000 5000 N and 5000 GN Printers Service Manual Copyright Hewlett Packard Company 1998 All Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Publication number C4110 91033 First Edition Hewlett Packard Company 11311 Chinden Boulevard Boise Idaho 83714 U S A Warranty The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with respect to this information HEWLETT PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard shall not be liable for any direct indirect incidental consequential or other damage alleged in connection with the furnishing or use of this information Trademark Credits PostScript is a trademark of Adobe Systems Incorporated which may be registered in certain jurisdictions CompuServe is a U S trademark of CompuServe Inc Windows is a U S registered trademarks of Microsoft Corporation TrueType is a U S trademark of Apple Computer Inc ENERGY STAR is a U S registered service mark of the U S EPA EN Contents 1 Printer Description OVEIVIEW se bensr ritke nk iter n
84. CN Screw Long DC Controller Screws M3x25 Table 8 2 on page 8 6 XB1 2300 607CN M3x6 Screw Mach Truss Head Table 8 8 on page 8 17 XB2 6400 607CN XB4 2300 407CN Screw M4x6 Screw w Washer Screw Mach Truss Head M4x10 Table 8 2 on page 8 6 Table 8 22 on page 8 39 XB4 7300 807CN M3x8 Screw Tapping Truss Head Table 8 23 on page 8 41 XB4 7400 807CN Screw M4x8 Truss Head Tapping Table 8 2 on page 8 6 XB4 7401 007CN Screw M4x10 Pan Head Tapping Table 8 2 on page 8 6 XB6 7300 807CN Screw M3x8 TP Screw Table 8 2 on page 8 6 XD2 1100 322CN E Ring Table 8 2 on page 8 6 EN Illustrations and Parts Lists 8 51 8 52 Parts and Diagrams EN Index Numerics 500 sheet Feeder PCA removing and replacing 6 81 500 sheet Tray disassembly 6 74 A AC DC power distribution 5 3 accessories 8 4 assemblies removing and replacing 6 27 C cables replacement 8 6 card stock 1 20 CFC usage 1 26 cleaning accessories 4 2 paper path 4 4 printer 4 2 spilled toner 4 4 using cleaning page 4 4 clutches 5 9 5 30 component locations 7 80 Configuration menu 3 17 configuration page 7 46 control panel 3 2 5 17 changing settings 3 5 defaults 3 4 keys 3 2 3 3 layout 3 2 lights 3 2 printing Menu Map 3 5 settings 3 4 Control Panel Overlay removing and replacing 6 15 Control Panel removing and replacing 6 15 covers 6 10 CPU 5 14 Create Cle
85. Cable Ribbon from Paper PCA to Controller RH2 5338 000CN Figure 8 4 22 8 6 Parts and Diagrams EN Illustrations and Parts Lists Roller Assembly xe eb o i i o a Oo 0 Feed Belt Assembly Upper Delivery Roller Paper Assembly DC Controller Assembly Printer Drive Assembly Assembly Illustrations and Parts Lists 8 7 EN Fuser Paper Pickup Roller Assembly Figure 8 1 Assembly Location Diagram Registration Roller Assembly Paper Tray Table 8 4 Assemblies Listed Alphabetically and Their Part Numbers Description Part No Exchange No Exploded View in Figure DC Controller with RG5 3517 000CN C4110 69001 Figure 8 16 Ribbon Cable RH2 5337 000CN Formatter Assembly C3974 69001 Fusing RG5 3528 000CN 110V C4110 69002 Figure 8 18 RG5 3529 000CN 220V C4110 69003 Laser Scanner RG5 3603 000CN C4110 69008 Figure 8 7 Power Supply 110V RH3 2195 000CN C4110 69004 Figure 8 16 with Ribbon Cable RH2 5337 000CN Power Supply 220V RH3 2196 000CN C4110 69005 Figure 8 16 with Ribbon Cable RH2 5337 000CN Tray 1 Assembly RG5 3548 000CN Figure 8 2 Tray 1 Pickup RG5 3519 000CN Figure 8 5 Assembly Upper Delivery Roller RG5 3542 000CN Figure 8 8 Assembly 8 8 Parts and Diagrams EN Table 8 4 Assemblies Listed Alphabetically and Their Part Numbers continued Description Part No Exchange No Exploded View in Figure Paper F
86. Check the input area for obstructions such as paper in the path damage to the Registration Assembly or the Transfer Roller out of place 3 Check PS402 and PS403 for proper operation Replace any defective sensors or flags For locations of sensors see page 7 88 EN Table 7 6 Numerical Printer Messages continued Control Panel Event Explanation Message Log Message 13 05 Paper delay jam at Fuser 13 06 Paper stopped jam at Fuser 13 10 or Paper delay jam at paper 13 22 reversing area Paper jam at duplexer Recommended Action For and 1 Check the Transfer Roller and Small Media Belt to ensure they are operating and can feed paper 2 Check the paper path for obstructions at the Transfer Roller and Toner Cartridge at the Paper Feed Guide and at the Fuser 3 Check PS1307 for proper operation Replace any defective sensors or flags For locations of sensors see page 7 88 1 Check the Duplexer and the rear area of the printer for obstructions or damage 2 Check PS1701 and PS1703 in the Duplexer for proper operation Replace the Duplexer if a sensor is defective EN Troubleshooting the Printing System 7 27 Table 7 6 Numerical Printer Messages continued Control Panel Message alternates with alternates with 7 28 Troubleshooting Event Explanation Log Message 13 20 or Paper stopped jam in the 13 32 paper path 13 21 or
87. Cover right Table 8 13 on page 8 25 Cleaning Brush Table 8 6 on page 8 12 Table 8 5 on page 8 10 Table 8 5 on page 8 10 Table 8 5 on page 8 10 Table 8 5 on page 8 10 Table 8 5 on page 8 10 Table 8 11 on page 8 22 Table 8 11 on page 8 22 Table 8 11 on page 8 22 Table 8 7 on page 8 14 Right Bushing Table 8 11 on page 8 22 Left Bushing Table 8 11 on page 8 22 Right Bushing Lower Delivery Roller Table 8 7 on page 8 14 Paper Guide Right Latch Plate Left Latch Plate Cover Support Strap Face Up Deflector Face Down Bin Full Sensor Lever Static Charge Eliminator Delivery Roller Lower Delivery Roller 8 48 Parts and Diagrams EN Part Number Description Table Number and Page RB2 1989 000CN Left Bushing Lower Delivery Roller Table 8 7 on page 8 14 RB2 1990 000CN Grounding Plate Table 8 7 on page 8 14 RB2 1991 000CN Right Latch Block Table 8 5 on page 8 10 RB2 1992 000CN Left Latch Block Table 8 5 on page 8 10 RB2 1996 000CN Face Down Guide Roller Table 8 9 on page 8 19 RB2 1997 000CN Roller Holder Table 8 9 on page 8 19 RB2 2020 000CN Tray Extension Table 8 16 on page 8 31 RB2 2037 000CN Tray Cover 250 sheet Feeder Table 8 16 on page 8 31 RB2 2042 000CN Universal Tray Extension Lock Table 8 16 on page 8 31 RB2 2068 000CN Roller Mount 1 Table 8 9 on page 8 19 RB2 3211 000CN
88. Delivery Assembly B Delivery Roller 2 Face the left side of the printer The Delivery Assembly is secured with tabs on each side Use a screwdriver to gently release the tab on the inside and then lift the assembly out Be careful not to lift it too high until you release the tab on the opposite side See Figure 6 55 EN Removing Assemblies 6 65 Figure 6 55 Upper Delivery Assembly Tabs 3 The Face Down Bin Full Sensor is on the left side of the Upper Delivery Assembly page 6 60 Be careful not to damage it as you slide the Delivery Assembly out of the chassis Hint To reassemble the Upper Delivery Assembly slide the unit straight down to lock it in place Make sure the Face Down Bin Full Sensor is free to move on the left side 6 66 Removing and Replacing Parts EN Delivery Roller Removal 1 Remove the Top Cover page 6 12 the Left and Right Side Covers page 6 23 Rear door Rear Output Bin page 6 10 Main Gear Assembly page 6 34 and the Upper Delivery Assembly page 6 65 Figure 6 56 Delivery Roller Components Item Explanation A Rollers B Lower Delivery Rollers C Delivery Roller 2 Facing the left side of the printer insert a flat blade screwdriver as shown in Figure 6 57 and twist gently to release the tab on the right side of the Delivery Roller wo Release the tab on the left side in the same manner After freeing both locking tabs gently pull forward on
89. Door open jam 13 33 The printer received more data than can fit in its available memory You might have tried to transfer too many macros soft fonts or complex graphics The data dense text rules raster or vector graphics sent to the printer was too complex Recommended Action For and 1 Check the entire paper path for obstructions such as paper in the path registration area transfer area paper feed and Fuser 2 Check that all assemblies are seated and doors are closed 3 Check all sensors and flags in the paper path see page 7 88 Press Go to print the transferred data Some data might be lost then simplify the print job or install additional memory Press Go to print the transferred data Some data might be lost To print the job without losing data from the Configuration Menu in the Panel set leave it might degrade performance If this message appears often simplify the print job EN Table 7 6 Numerical Printer Messages continued Control Panel Message p alternates wit alternates wit alternates wit EN Event Log Message Explanation Too much data was sent to the EIO card in the specified slot Too much data was sent to the parallel port This error can occur if the driver you are using is not IEEE 1284 compliant For best results use an HP driver that came with
90. Feeder Table 8 23 on page 8 41 RF5 3585 000CN Separation Pad Spring Table 8 16 on page 8 31 RF5 2634 000CN Feed Roller 500 sheet Feeder Table 8 23 on page 8 41 RG5 2648 000CN Upper Delivery Roller Assembly Figure 8 8 on page 8 22 RG5 3517 000CN 110V RH2 5337 000CN 220V DC Controller with Ribbon Cable Figure 8 16 on page 8 35 RG5 3517 000CN DC Controller Table 8 19 on page 8 35 EN Illustrations and Parts Lists 8 49 Part Number Description Table Number and Page RG5 3519 000CN Tray 1 Pickup Roller Assembly Table 8 8 on page 8 17 RG5 3520 000CN Tray 1 Paper Guide Plate Assembly Table 8 7 on page 8 14 RG5 3521 000CN Paper Pickup Roller Assembly Tray 2 Table 8 12 on page 8 23 RG5 3522 000CN Paper Feed Roller Assembly Table 8 14 on page 8 27 RG5 3523 000CN Sensor Cable Table 8 14 on page 8 27 RG5 3524 000CN Registration Roller Assembly Table 8 15 on page 8 29 RG5 3525 000CN Transfer Guide Assembly Table 8 9 on page 8 19 RG5 3526 000CN Paper Feed Belt Assembly Table 8 13 on page 8 25 RG5 3528 000CN Fuser 100 120 V Table 8 21 on page 8 37 RG5 3529 000CN Fuser 220 240 V Table 8 21 on page 8 37 RG5 3542 000CN Upper Delivery Assembly Table 8 11 on page 8 22 RG5 3543 000CN Main Gear Assembly Table 8 17 on page 8 33 RG5 3544 000CN Pickup Gear Assembly Table 8 18 on page 8 34 RG5 3545 000CN Power Inlet Assembly Table 8 8 on page 8 17 RG5 354
91. Image Fusing Variable Fusing Temperature During the fusing process the toner is fused into the paper by heat and pressure to produce a permanent image The paper passes between a heated fusing roller and a soft pressure roller This melts the toner and presses it into the paper The fusing roller contains a ceramic heating element that provides heat for the fusing process Fusing temperature is monitored by the DC Controller Board via the thermistor TH1303 If the fusing system overheats about 446 F 230 C a relay opens interrupting power to the Fusing Heater causing a Fuser error message E If the fusing system exceeds 464 F 240 C the thermal fuse will open cutting off power to the Fuser The DC Controller Board maintains a variable fuser temperature that is dependent on the paper type set in the Paper Handling Menu Fuser film Fuser heater Paper Pressure roller Figure 5 14 Image Fusing EN Image Formation System 5 27 Variable Fusing Temperature _ Power supply 2 DC cotroller Derivery roller _ o Main motor Figure 5 15 Fusing Temperature Control Variable Fusing Temperature is a feature that gives the user or service technician the ability to adjust the fusing temperature based on the media being used in the printer The default mode is Normal and should be optimal for most users There is an optional Vellum Low Normal and High Fuser Mode selection If very heavy or rough
92. MO or Support Materials Europe SME Use only accessories specifically designed for this printer Accessories can be ordered from an authorized service or support provider See page 2 5 and page 8 4 for more information Parts and Supplies 2 3 Helpful Documentation Table 2 1 lists part numbers to order documentation Table 2 1 Helpful Documentation Item HP LaserJet Printer Family Paper Specification Guide PCL 5 PJL Technical Reference Documentation Package HP LaserJet 5000 5000 N and 5000 GN Printers User s Guide HP LaserJet 5000 5000 N and 5000 GN Printers Getting Started Guide HP LaserJet 5000 5000 N and 5000 GN Printers Quick Reference Guide User s Documentation Bundle HP LaserJet 5000 5000 N and 5000 GN 2 4 Service Approach Description or Use A guide to using paper and other print media with HP LaserJet printers A guide to using printer commands with HP LaserJet printers An additional copy of the user s guide An additional copy of the getting started guide An additional copy of the quick reference guide An additional copy of the user s guide the getting started guide and the quick reference guide Part Number 5021 8909 5021 0330 C4110 90901 English C4110 90926 English C4110 90976 English C4110 99001 English EN Phone Numbers for Ordering SMO Support Materials Organization 1 800 227 8164 U S only e SME Support Materia
93. N Remove the single self tapping screw holding the Control Panel to the underside of the Top Cover Lift up on the metal plate gently to free the Control Panel Grasp the Control Panel by the metal frame and remove it from the underside of the Top Cover See Figure 6 8 Back Side of Top Cover on page 6 16 Removing Covers 6 15 OO TU Figure 6 8 Back Side of Top Cover Item Explanation A Direction to slide control panel out B Screw 6 16 Removing and Replacing Parts EN Toner Cartridge Door Assembly 1 Remove the Top Cover page 6 12 2 Remove the Control Panel from the Top Cover page 6 15 The Control Panel must be removed before you can separate the Toner Cartridge Door from the Top Cover 3 Disengage the pins A by pressing outward as shown below Figure 6 9 Toner Cartridge Door Assembly Under Side of Top Cover Door Item Explanation Pins EN Removing Covers 6 17 Front Cover and Tray 1 Front Cover and Tray 1 must be removed individually See Figure 6 10 1 Open the Front Cover door 2 Disengage the Tray 1 Guide pins from inside the Front Cover by pushing the Guides C outward The Cover and Tray 1 will be separated Press Tray 1 Guide against the printer Figure 6 10 Front Cover Item Explanation A Front Cover B Tray 1 Guide C Guides 3 Release the Front Cover allowing it to pivot freely on i
94. NS Separation pad Tray paper pick up roller EN 1 250 Sheet Paper Feeder Paper Feeder Driver PCA 24V J1652 2 3 J1501 9 10 4 5V gt J1651 3 l sete SCLK Serial clock signal To printer STB Strobe signal duplexing unit gt UTSE 4 RXDOU Transmission data input signal gt 2 3 TXDOU Transmission data output signal J1651 4 J1652 4 Option select signal 24V J1662 1 2 J1502 9 10 t 5V S J1661 3 2 5 31662 11 H mise Speed charge signal Tenumemaiek a a 7 SCLK Serial clock signal nee 6 STB Strobe signal gt a 5 RXDOL Transmission data input signal gt Leor 4 TXDOL Transmission data output signi 7 STERML Option select signal S J1661 4 J1662 4 Paper feeder Paper feeder pick up motor pick up motor B drive signals Paper feeder 24VF pick up solenoid PS1601 SLON H to start paper pick up PSLED 5V PSTR L when sensor detects paper l Paper feeder 7 paper sensor I 5 rh swo swi Detects the paper size by the combination of these signals l l zo SW1601 s1601 4 J1505 4 i Cassette aos Swi602 3 5 paper size l switch s swe a i ate SW1604 i o 1 7 Figure 7 10 250 sheet Paper Feeder EN Reference Diagrams 7 81 F
95. Refeed motor drive signal Refeed paper signa DXPRS Side registration guide home position signal HREGS Side registration guide drive motor drive signal ao Feed roller1 Feed roller 2 Refeed roller 1 Paper Feed for the Duplexer Paper Feed System 5 39 Reversing System The duplexing driver PCA receives the duplex admission command from the printer first It turns on the Duplexer deflector drive solenoid SL1701 and the Duplexer deflector in the printer then starts to send the paper into the Duplexer Within a specified period of time after receiving the command the duplexing driver PCA also drives the reversing motor PM1 701 in straight rotation and the reversing rollers 1 2 and 3 in XX direction Therefore the paper is fed in XX direction shown in the figure below Printer Duplexing deflector 4 3 Pressure roller Siaga Switchback roller1 Switchback roller2 PS1701 Feed guide Switchback roll Feed roller1 C emana roller4 Q Within a specified period of time after the trailing edge of the paper is detected with the reversing unit paper sensor PS1701 the duplex driver PCA pauses the rotation of the reversing motor PM1701 The duplex driver PCA then switches the reversing motor PM1701 to reverse rotation Duplexing unit Figure 5 23 Duplexing Unit As the paper is fed along the feed guide it is fed through the reversing roller 4 and the feed
96. Subsystem DC Controller Subsystem Formatter PCA Control Panel Interface PCA Image Formation System Paper Feed System Basic Sequence of Operation Overview 5 1 Printer Subsystems This chapter presents a generalized functional overview of the printer and the printing processes To external device host computer etc through the Formatter PCA control unit PICK UP FEED ae ee ee A SYSTEM Figure 5 1 Paper Feed Subsystem 5 2 Functional Information EN Power Supply System EN AC DC Power Distribution The AC line voltage for the printer is applied through the main switch SW101 and supplied to the low voltage power supply circuit through the fuse FU1 The low voltage power supply divides the AC voltage to 24 VDC 5 VDC and 3 4 VDC and supplies them to the DC controller PCA This circuit generates a zero cross signal ZEROX and supplies it to the DC controller PCA 3 4 VDC is supplied to ICs on the DC controller PCA and the BD PCA 5 VDC is supplied to the laser driver PCA and sensors 24 VDC is supplied to the high voltage power supply PCA to drive the main motor the exhaust fan the scanner motor the clutches and the solenoids 24 VDC is divided into 24 Vdr which stops when the top cover is opened and SW401 on the terminal PCA turns off and _24V which is always supplied regardless of whether SW401 turns on or off Power Supply System 5 3 Main switch SW101 Power supply unit
97. The primary charging roller is coated with conductive rubber with an AC bias applied to erase any residual charges and maintain a constant drum surface to create a uniform negative potential on the drum surface The amount of DC voltage is modified by the print density setting Primary charging roller AC bias a DC bias 77 Photosensitive Drum Figure 5 10 Primary Charging Roller EN Image Formation System 5 23 Writing the Image During the writing process a modulated laser diode projects the beam onto the rotating six sided scanning mirror As the mirror rotates the beam reflects off the mirror through a set of focusing lenses through a slot in the rear of the Toner Cartridge and onto the photosensitive drum The beam sweeps the drum from left to right discharging the negative potential wherever the beam strikes the surface This creates a latent electrostatic image which later is developed into a visible image Focusing Lens BDIC PCB Scanning Mirror BD Lens Hexahedron Laser Driver Cylindrical Lens BD Mirror Photosensitive Drum Figure 5 11 Writing the Image Because the beam is sweeping the entire length of the drum and the drum is rotating the entire surface area of the drum can be covered The speed of the scanner motor which turns the scanning mirror and the speed of the main motor which turns the drum are synchronized and each successive sweep of the beam is offset by 1 1200t
98. a nee nears ene te dea E 1 1 Printer Features 20 000 cece eee 1 2 Identification a e ia En eda aha i aeaa aE kaa i 1 5 Model and Serial Numbers 0 0200000 eee 1 5 Site Requirements ananuna aaa 1 6 Space Requirements 00 0 cee eee eee 1 7 Paper Specifications 0 00 0 eee eee 1 11 Supported Types of Paper 0 0 c eee eee 1 14 Guidelines for Using Paper 0000000 1 15 ADCS s onanii as anene a Chinas DRK ated RG carat 1 18 TransparencieS 000 c eee ee 1 18 Velum ented Ben re oe ie ees ENEE Oko EG wo 1 18 Envelope Sie iea ye gene de ieee E E E Eaa 1 19 Card Stock and Heavy Paper 000000 1 20 Safety Information n a anaana 1 22 Laser Safety Statement 00 0 0 1 22 Canadian DOC Regulations 0000 1 22 FCC Regulations 0 00000 cee eee 1 23 Laser Statement for Finland 0000 1 24 Toner Salety iea oan auei be eee eee toe eed oe eens 1 25 Environmental Product Stewardship 1 26 2 Service Approach OVEIVIEW essieu aks Boek hehe ad EERE A EOE RRs ee Lk 2 1 Service Approach 0 00 cece 2 2 Parts and Supplies 0 0 ene 2 3 Ordering Information 0 200 0c eee eee 2 3 Helpful Documentation 0000 cee eee nee 2 4 Phone Numbers for Ordering 02000005 2 5 Exchange Program 00 c eee eee eee 2 5 Consumabl
99. against the areas of the drum not exposed to laser light This AC potential improves density and contrast Photosensitive drum Blade N Stirring rod AC bias DC bias i The Print Density control in the Control Panel Menu adjusts the DC bias of the developing cylinder by changing the force of attraction between the toner and drum A change in the DC bias causes either more or less toner to be attracted to the drum which in turn either increases or decreases the print density Both the primary and developer DC bias voltages are changed in response to the density setting Cylinder magnet Developing the Image Image Formation System 5 25 Transferring the Image During the transferring process the toner image on the drum surface is transferred to the paper A positive charge applied to the back of the paper by the transfer roller causes the negatively charged toner on the drum surface to be attracted to the page The small diameter of the drum combined with the stiffness of the paper causes the paper to peel away from the drum The static eliminator teeth also help separate the paper from the drum The static eliminator teeth weaken the attractive forces between the negatively charged drum surface After separation the drum is cleaned and conditioned for the next image Static charge eliminator DC bias Transfer charging roller Figure 5 13 Transferring the Image 5 26 Functional Information EN
100. al hard disk installed and the printer has at least 8 MB of memory The RAM disk is disabled H The RAM disk is enabled Configure the amount of memory to be used through the following item Note If the setting is changed from GFF from GFF to ALTO the printer will automatically reinitialize when it becomes idle EN Control Panel Menus 3 21 Table 3 8 Configuration Menu continued Item Values Explanation k and up Determine the size of the RAM disk This This value depends on item appears if amp i or the amount of installed Press Value to shange settings by memory increments of 100 Note This setting cannot be changed if Changing this value will cause the printer to reinitialize when it becomes idle Determine how the printer behaves when a paper jam occurs ci The printer automatically selects the best mode for printer jam recovery usually This is the default setting H The printer automatically reprints pages after a paper jam is cleared F The printer does not reprint pages following a paper jam Printing performance might be increased with this setting Paper reforming has two main purposes 1 To reduce jams wrinkles and bent corners when printing on both sides of a sheet of paper duplexing 2 To reduce bent corners and wrinkles when printing on one side of a sheet of narrow media such as legal rotated letter or rotated A4 Print speed
101. al phone numbers Parts that have no item number or part number listed are not field replacement parts and cannot be ordered How To Use the Parts Lists and Diagrams 8 3 Accessories and Supplies The following items are available through your local authorized HP dealer To find a dealer near you call the HP Customer Information Center 800 752 0900 Note See page 2 4 for documentation product numbers Table 8 1 Accessories and Supplies Description Part No Exchange No Product No 500 sheet Paper Feeder and Tray C4115A 250 sheet Paper Feeder and Tray C4114A Duplex Printing Accessory duplexer C4113 69001 C4113A 250 sheet Replacement Tray C4116 69001 C4116A 500 sheet Replacement Tray C4117 69001 C4117A HP Multi purpose Paper HPM1120 HP LaserJet Paper HPJ1124 Toner Cartridge 10 000 pages C4129J EDO Dual In line Memory Module DIMM 4 MB C4135 67901 C4135A 8 MB C4136 67901 C4136A 16 MB C4137 67901 C4137A SDRAM DIMMs 4 MB C4140 67901 C4140A 8 MB C4141 67901 C4141A 16 MB C4142 67901 C4142A 32 MB C4143 67901 C4143A Flash DIMM 2 MB C4286A 4 MB C4287A Font DIMM 8 MB Asian MROM Traditional Chinese C4292A Simplified Chinese C4293A Hard Disk C2985A Parallel Cables 2 Meter IEEE 1284 cable C2950A 3 Meter IEEE 1284 cable C2951A 8 4 Parts and Diagrams EN Table 8 1 Accessories and Supplies continued Description Part No Exchange No Product No S
102. amine and clean rollers in the paper path roller in the paper path may result in a repetitive print defect Fusing Assembly is Clean the Fusing Assembly using alcohol If the dirty or defective The problem persists replace the Fusing Assembly circumference of the lower fusing Pressure Roller is 86 mm 3 46 inches If the defect repeats at this interval the defect is associated with the Pressure Roller Gears are worn Inspect the gears driving the Toner Cartridge and the causing slippage or Fuser Replace the Main Drive Assembly if jumping necessary Paper does not meet Try a different paper lot see HP LaserJet Printer specifications The Family Paper Specifications Guide surface of the paper may be too coarse causing repeated marks Troubleshooting the Printing System 7 67 AaBbCc AQBbCc AaBbCc AaBbCc AaQBbCc AQBbCc AaBhEc AaBhCc AaQBkCc AaBbCc Table 7 26 Skew Possible Cause Paper does not meet printer specifications or is stored improperly Paper is not loaded correctly or trays are not adjusted properly Action 1 Print a few more pages to see if the problem corrects itself 2 Turn over the stack of paper in the tray Also try rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Make sure paper is loaded correctly and
103. aning Page message 4 4 EN D DC Controller Board removing and replacing 6 47 Delivery Roller Removal removing and replacing 6 68 diagrams reference 7 80 DIMM slots 5 16 documentation 2 4 drives laser 5 8 scanner 5 8 D roller removing and replacing 6 79 drum cleaning 5 22 conditioning 5 23 Duplexer 5 38 duplexer paper jam 5 44 refeed system 5 38 reversing system 5 38 E EconoMode 5 13 EIO menu 3 27 electrical specifications 1 6 Energy Star 1 26 Engine Controller Board inputs and outputs 7 107 engine controller subsystem 5 7 engine test 7 9 envelopes 1 19 environmental product stewardship 1 26 Event Log 7 12 F Fan removing and replacing 6 40 Feed Roller removing and replacing 6 79 Formatter Assembly removing and replacing 6 41 Formatter system 5 12 Front Cover removing and replacing 6 18 Fuser Mode setting 5 28 Fuser removing and replacing 6 30 fusing temperature variable 5 28 G Gear Assembly removing and replacing 6 81 Index 1 H heavy paper 1 20 l I O menu 3 24 image developing 5 25 transferring 5 26 writing 5 24 Image Formation System 5 18 photosensitive drum 5 21 image quality 7 49 Information menu 3 6 input output 5 14 L labels 1 18 laser drive 5 8 Laser Scanner Assembly removing and replacing 6 70 Left Corner Cover removing and replacing 6 26 Left Front Corner Cover removing and replacing 6 77 Main Gear Assembly removing and replacing 6 35 Main Motor removi
104. aper size switch 3 500 sheet paper feeder Reference Diagrams 7 103 A16 A1 VR402 B16 J301 B1 JP301 1 22 O J304 1 Ti 20 12 Q J303 11 7 2 J306 J307 10 4 2 13 0 J302 OJ 19 20 a VR401 J305 Figure 7 31 DC Controller Board Test Points and Switches Function For factory use Function For factory use 7 104 Troubleshooting EN Figure 7 32 EN SW No SW1601 SW1602 SW1603 SW1604 Function SW 1601 SW 1602 SW 1603 SW 1604 Cassette paper size switch See page 2 41 250 sheet Paper Feeder Sensors Reference Diagrams 7 105 Paper size switches Printer SW403 Sw404 SW405 SW406 250F SW1601 SW1602 SW1603 SW1604 500F SW2101 SW2102 SW2103 SW2104 OFF OFF OFF ON ON OFF ON ON A4 ON A5 B4 B5 Ledger Legal Executive Printer Letter Letter R Letter Letter Universal 7 106 Troubleshooting DC Controller PCA Inputs and Outputs Terminal PCA l Tray 1 I paper l sensor l I bee eae ee l ooi PS402 1409 3 J402 1 d 71 31 e see LI 2 2 8 TOPSNS PS 403 g 410 3 J403 1 l ijd Registration yir z 3 RGSNS roller paper 2 sensor J 424V jo er SS F SS I 16 l Sw40
105. aper type from the printer driver Replace the Fusing Assembly Clean using the blue cleaning tool or compressed air Replace assembly if damaged If a new Fusing Assembly does not resolve the problem replace the DC Controller PCA Table 7 28 Toner Specks Possible Cause Dirt in printer Action 1 Print a few more pages to see if the problem corrects itself 2 Clean the inside of the printer page 4 2 or use the printer s cleaning page page 4 4 Troubleshooting the Printing System 7 69 AQBHCS AQBOCG AGBEGE AaBECE AABCE Table 7 28 Toner Specks continued Possible Cause Paper does not meet printer specifications or is stored improperly Alternating small and standard paper such as envelopes and letterhead Action 1 Print a few more pages to see if the problem corrects itself 2 Turn over the stack of paper in the tray Also try rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly To alternate small and standard paper from the Configuration Menu on the Control Panel set Table 7 29 Vertical Black Lines Possible Cause Toner Cartridge not seated properly Toner Cartridge defective Repetitive defect If the lines are repeated at a consistent interval down the page this is a repetitive defect 7
106. ar page 7 68 Toner Specks page 7 69 Vertical Black Lines page 7 70 Vertical Dots page 7 71 Vertical White Lines page 7 71 Hint If you find a defect that is not depicted record the probable cause along with the conditions in the printing environment and save a copy of the defect for future reference 7 50 Troubleshooting EN Table 7 9 Black Lines perpendicular path Possible Cause Action Defective Toner Inspect the Toner Cartridge for a scratched Cartridge photosensitive drum or toner leaking through worn seals Replace as necessary Fusing Assembly is Inspect the Fusing Assembly for toner build up or contaminated or scratches on the fuser rollers Try cleaning with damaged alcohol Replace the Fusing Assembly if damaged Static Eliminator Clean using the blue cleaning tool or compressed teeth are air Replace assembly if damaged contaminated or defective Table 7 10 Black Page Possible Cause Action Defective Toner Replace the Toner Cartridge Cartridge Light is leaking into Ensure all covers are in place the printer High voltage contact Inspect and clean the high voltage contacts If springs are dirty or damaged replace the High Voltage Power Supply defective The high PCA voltage contacts are mounted on the High Voltage Power Supply PCA and protrude into the toner cartridge cavity EN Troubleshooting the Printing System 7 51 Table 7 10 Black Page continued
107. arallel interface runs at the slower mode that is compatible br eote omputers The user may also Configure the i item The daraa setting GH allows for two way parallel communications The aFF mode disables the advanced functionality The I O is compatible with the bidirectional parallel interface standard Expanded I O The optional Expanded I O card can be installed in the slots provided on the Formatter PCA It provides automatic I O switching between multiple computers or networks connected to the printer The network version printers include the HP JetDirect Print Server with Ethernet 10Base T 10Base 2 and LocalTalk Flash Flash is provided in optional 2 and 4 MB flash memory DIMMs for storage of forms fonts and signatures Disk The optional 1 4 GB ElO based hard drive is used for creating multiple original prints mopies and for storage of forms fonts and signatures Local Talk I O The printer implements AppleTalk networking protocol through LocalTalk hardware The LocalTalk network cable HP P N 92215N is connected through the EIO card CPU The Formatter PCA incorporates a 100 MHz RISC processor 5 14 Functional Information EN Note EN Printer Memory If the printer encounters difficulty managing available memory a clearable warning message will be displayed on the Control Panel Some printer messages are affected by the Auto Continue and Clearable Warning settings from the Configuratio
108. are diagnostic and Note For developers only Clear Event Log This item allows the internal event log to be cleared 3 34 Printer Operation EN Testing the Printer EN When you print a Configuration Page the printer checks its internal controller and I O interface and then prints a test page You can review the Configuration Page printout to verify proper installation of such options as paper trays or printer languages For more information see page 7 45 Engine Test The engine test print can be used to verify that the print engine is functioning correctly For more information see page 7 9 Testing the Printer 3 35 Resetting the Printer CAUTION Cold Reset Cold Reset clears all data from the printer memory and sets all the defaults back to the factory settings Performing a Cold Reset resets the JetDirect configuration To avoid making changes to your configuration remove the JetDirect card before performing a cold reset If possible print a Configuration Page prior to performing a Cold Reset This will document current settings for later reference To perform a cold reset 1 Turn off the printer 2 While pressing Go turn the printer on i briefly on the display then i seconds followed by f appears appears After a few appears on the display The cold reset is complete 3 Press Go to return the printer online display appears on the Clearing NVRAM
109. as eee eed i ohne 6 43 Paper Feed Roller Assembly 00005 6 44 DC Controller Board and Power Supply 6 47 Paper Feed Belt Assembly 200000005 6 51 Tray 1 Shaft ocna oeoa keg ened Pau ei ead eee ees 6 53 Tray 2 Shaft i saeco wiae ad eo pean save oy pei ta 6 55 Tray 1 Lift Plate ccsc pea tad eewe ee wee ee eee bea 6 57 Tray 1 Separation Pad 0000 a eee eee 6 58 Paper Guide 0 0 0 0 c a a ee 6 59 Paper Path Detect Sensor 0000ee eee 6 60 Face Down Bin Full Sensor 20 000005 6 61 Power Connection 00 00 cee eee eee 6 63 Registration Assembly 0000 e eee eee 6 64 Upper Delivery Assembly 00000 eee aeee 6 66 Delivery Roller Removal 2000e cece aces 6 68 Laser Scanner Assembly 00000 0c eee eae 6 70 Main Motor lt 4 2283 ddce8erne eee cae aa aaa 6 71 Toner Cartridge Guides 0 0 0 0 cc eee ee 6 72 Power Inlet Assembly 0 000 cee eens 6 73 EN EN Optional 500 sheet Tray Disassembly 6 74 Tray Indicator Assembly 00000 2 eee eee 6 76 Left Front Corner Cover Installation 6 77 Paper Size Spring Assembly 0000000 ae 6 78 D roller and Feed Roller 0 0 00 c cece eae 6 79 Gear Assembly and PCA 000 eens 6 81 Power Connector 0 0 00 c cece eee nas 6 82 Separation Roller
110. ate driver is installed Printer driver and software application settings override Control Panel settings Table 3 6 Print Quality Menu Item Values Explanation Select the resolution from the following values Produces draft print quality at the printer s maximum speed 16 ppm 300 dpi dots per inch is recommended for some bitmapped fonts and graphics and for compatibility with the HP LaserJet III family of printers Produces high print quality at the printer s maximum speed 16 ppm Produces optimum print quality comparable to 1200 dpi at the printer s maximum speed 16 ppm Produces optimum print quality true 1200 dpi at half the printer s maximum speed 8 ppm When the resolution is changed any downloaded resources such as fonts or macros will need to be downloaded again unless they are stored on an optional hard disk or flash DIMM Note It is best to change the resolution from the printer driver or software application Driver and software settings override Control Panel settings 3 10 Printer Operation EN Table 3 6 Print Quality Menu continued Item Values Explanation Use the printer s Resolution Enhancement technology REt setting to produce print with smooth angles curves and edges REt does not affect print quality when the print resolution is set to ProRes 1200 All other print resolutions including FastRes 1200 benefit from REt Note
111. cation settings override Control Panel settings Table 3 5 Paper Handling Menu Item Values For supported paper types see page 1 14 For supported paper types see page 1 14 For supported paper types see page 1 14 For supported paper types see page 1 14 EN Explanation Determine how the printer will use Tray 1 If paper is loaded in Tray 1 the printer will pull paper from that tray first A paper size must be oe to Tray 1 using the option the next item in this n menu when i This allows Tray 1 to be used as a reserved tray This item appears only whe Set the value to correspond with the paper size currently loaded in Tray 1 This item appears only when TRF 1 Set the value to correspond with the paper type currently loaded in Tray 1 Set the value to correspond with the paper type currently loaded in Tray 2 This item appears only when a third paper tray is installed Set the value to correspond with the paper type currently loaded in Tray 3 Control Panel Menus 3 7 Table 3 5 Paper Handling Menu continued Item Values For supported paper types see page 1 14 3 8 Printer Operation Explanation This item appears only when a fourth paper tray is installed Set the value to correspond with the paper type currently loaded in Tray 4 Feed the paper manually from Tray 1 rather than automatically from a tray
112. cement technology REt The Formatter PCA contains circuitry for Resolution Enhancement technology REt which modifies the standard video dot data on its way to the DC Controller Board to produce smoothed black to white boundaries REt can be set from the Control Panel or from some software applications The default setting is medium REt settings sent from software applications or printer drivers override the Control Panel settings EconoMode The EconoMode setting uses up to 50 less toner than standard mode printing by reducing the dot density However EconoMode does not extend Toner Cartridge component life EconoMode which can be thought of as draft mode can be selected from the Control Panel Print Quality Menu and through some software applications and printer drivers The default setting is off EconoMode does not affect print soeed or memory usage nor does it extend the Toner Cartridge s life Formatter System 5 13 Input Output Parallel Interface The Formatter PCA receives incoming data through its bidirectional interface IEEE 1284 The I O provides high speed and two way communication between the printer and the host allowing the user to change printer settings and monitor printer status from the host computer The user may configure the SPEED item in the Control Panel menu The default setting E allows the I O to run at the higher speeds supported by most newer computers When set to Hi the p
113. ces Consumption Energy usage drops to as little as 21 W while in low power PowerSave mode Not only does this save natural resources but it also saves money without affecting the high performance of this printer This product qualifies for the ENERGY STAR Program U S and Japan ENERGY STAR is a voluntary program established to encourage the development of energy efficient office products ENERGY STAR is a U S registered service mark of the U S EPA As an ENERGY STAR partner Hewlett Packard Company has determined that this product longs meets ENERGY STAR Guidelines for energy efficiency 1 26 Printer Description EN EN service Approach Overview This chapter discusses the following e Service Approach e Parts and Supplies e Warranty Statement Overview 2 1 Service Approach Repair of the printer normally begins with use of the printer s internal diagnostics in conjunction with the troubleshooting procedures in Chapter 7 Once a faulty part is located repair is generally accomplished by assembly level replacement of Field Replaceable Units FRUs Some mechanical assemblies may be repaired at the subassembly level PCA component replacement is not supported by Hewlett Packard 2 2 Service Approach EN Parts and Supplies EN Ordering Information Field replaceable and accessory part numbers are found in Chapter 8 of this manual Replacement parts may be ordered from HP s Support Materials Organization S
114. cing Parts EN Figure 6 27 Removing the Main Gear Assembly Item Explanation A Locating Tab B Engagement Arm 4 Rotate the bottom of the assembly out Figure 6 27 and then lower it to release the Locating Tab A and remove the Main Gear Assembly CAUTION Use caution when removing the assembly The Toner Cartridge Engagement Arm may break if not handled carefully Hint Remember to reconnect the cable at the top of the Main Gear Assembly after reinstalling it EN Removing Assemblies 6 35 Pickup Gear Assembly 1 Remove the Top Cover page 6 12 Left Side Cover page 6 23 and the Paper Handling PCA page 6 31 2 Remove the four self tapping screws from the Gear Assembly Figure 6 28 shows the Assembly and the location of the screws Release the small spring B on the gear Remove the Gear Assembly from the chassis Figure 6 28 Pickup Gear Assembly left side view of printer Main Gear Assembly has not been removed 6 36 Removing and Replacing Parts EN Hint EN ltem Explanation Paper Feed Roller Assembly Gear Location to Release Spring Tray 2 Shaft Gear Wire Clip m ol o w Screws Before replacing the Pickup Gear Assembly route the cables through the wire clip behind the Left Corner Cover Reattach the spring from the Tray 2 Shaft Gear to the Paper Feed Roller Assembly Gear Removing Assemblies 6 37 Tray 1 Pickup Solenoid 1 Remove
115. connection is on the left side of the assembly Figure 6 22 Fuser rear view of printer Item Explanation Pressure Release Handles B Fuser C Screws D Screw driver lifting point 6 30 Removing and Replacing Parts EN Figure 6 23 Hint EN Paper Handling PCA 1 Remove the Top Cover page 6 12 and Left Side Cover page 6 23 2 Facing the left side of the printer disconnect the ribbon cable from the PCA 3 Remove two self tapping screws and two machine screws from the PCA 4 Rotate the PCA outward and disconnect the five cables See Figure 6 23 Paper Handling PCA Item Explanation A Cables B Ribbon Cable To install a self tapping screw first turn it to the left until it clicks indicating the threads are seated Then turn it to the right to tighten Do not over tighten If a self tapping screw hole becomes stripped repair of the screw hole or replacement of the affected assembly is required Removing Assemblies 6 31 Top Margin Adjustment When the terminal PCA is replaced in the field the top margin needs to be re adjusted Also if the top margin of test prints made after laser scanner unit replacement is not 2 0 mm this adjustment is necessary The adjustment procedures are shown below 1 After setting the VR401 on the terminal PCA to the center position 0 set A4 sized paper in the tray Press the test print switch to make several test prin
116. content of the Menu Map varies depending on the options currently installed in the printer Many of these values can be overridden from the printer driver or software application Troubleshooting the Printing System 7 43 440 SHOUYT Sd INIYd ON d OL Y3 ON3ddY p nuyuog nu w a vy 3vd Cf LL31IM3H STANNVHO O T TW 13S34 TANNYHI 0 1 SATLOV L3S3Y SONTLLAS AMOLIVA 340LS3Y AYOWSW 13S34 NANNAN SLASSY ON pV 301M yvIn934 4314N09 Jd 13S TOGWAS 13d 00 0T H LId LNO4 19d 0 8J8WNN LINOJ Td WNYSLNT 3984N0S LNOS Td SINIT 09 WuO4 LIYYLY0d NOILYLNJIYO ON Y3dYd WOLSNO JYNOTINOD ETNE g YdVd T S41d00 NANNAN SNILLNId NNAW LOAMIGLAr b Ola 39Vd ONINVI TO 31Y3 49 ISN3Q XINOL 0 300W0N033 WNTOSW 138 002T SJXLSYA NOILMOSIY e Al aa NANNAN ALIWNO LNId HOTH ALTUYY 10d ula Wyss 0096 31Ve anya Wiss uSd ald TWHYON 0334dS dadVd TYKS 440 ONIWNOIIY YddVd OLY 4Y3A093Y WE 440 ASIO WY SANT LNOD M01 YINOL NO 3NNILNOD OLN JOC SINI NJVM ONTDWd WIIS Fiavav3 19 NO SNOTLONAS 440 Adv TaTWavd JAVS JDNNOSIY S34 033dS olny HOTH TdT Wavd ALIIWNOSY3d OLAW 4344N O T SSLANTW 0 ST LNOSWIL O T AAVSYaMOd NNAN NAW O I NOILVYNSIANOD ON AN3W 300W ASSL Hi d Y3d YISI JYNDTANOD ANTE ON USLLIV pV 907 LNSAI 30144340 MORS 330 X3 dN 907 LN3A3 440 0334 TVNNYW ANTUd NIVId ISTI iNOS S JdAl p AVAL INTud NIVId 1S17 LNO4 13
117. ction Places the printer either online or offline Prints any data residing in the printer s buffer Allows the printer to resume printing after being offline Clears most printer messages and places the printer online Allows the printer to conti printi ith an er such as Handing Menu i in the tinier Control Panel Overrides a manual feed request from Tray 1 by selecting paper from the next available tray Exits the Control Panel menus To save a selected Control Panel setting first press Select Cancels the print job that the printer is processing The time it takes to cancel depends on the size of the print job Press it only once Cycles through the Control Panel menus Press the right end of the button to move forward or the left end of the button to move backward Cycles through the selected menu s items Press the right end of the button to move forward or the left end of the button to move backward Cycles through the selected menu item s values Press to move forward or to move backward Saves the selected value for that item An asterisk appears next to the selection indicating that it is the new default Default settings remain when the printer is switched off or reset unless you reset all factory defaults from the Resets Menu Prints one of the printer information pages from the Control Panel Using the Control Panel 3 3 Note Settings and Defaults The printer ma
118. customer to turn EconoMode on or off from the printer driver or software application since those settings override the control panel settings EconoMode settings can also be accessed from the Print Quality Menu in the Front Panel HP does not recommend full time use of EconoMode If EconoMode is used full time it is possible that the toner supply will outlast the mechanical parts in the toner cartridge Troubleshooting the Printing System 7 49 Image Defects The quality of the printer s output is subject to the judgment of the user This section of the manual helps you define print quality defects and understand what factors affect print quality The print samples shown in the following figures illustrate some print quality defects Keep copies of print quality defects encountered in the field with an explanation of their causes for future reference The image defects listed below are covered in the following tables Black Lines perpendicular path page 7 51 Black Page page 7 51 Blank Page page 7 53 Blank Spots page 7 55 Character Voids page 7 56 Creases page 7 57 Curl page 7 58 Dirt on Back page 7 59 Distorted Image page 7 59 Dropouts page 7 60 Faded Print Bubbles page 7 61 Gray Background page 7 63 Horizontal Smudges page 7 64 Horizontal White Lines page 7 65 Light Print Dark Print or Fade page 7 65 Loose Toner page 7 66 Repetitive Defects page 7 67 Skew page 7 68 Toner Sme
119. cylinder oto 1 ao see O sensitive oY F 5 dum 5 2 omo p v Transfer charging roller Static charge eliminator Tray 2 pick up roller a PRNT l DO 1 Video controller PCA DC controller PCA 1 NDO t l Mes aah a E I Figure 5 6 Image Formation System After the image has been transferred to the paper it is then fused onto the paper by heat and pressure at the Fuser EN Image Formation System 5 19 Toner Cartridge A major portion of the Image Formation system is contained in the cartridge as shown in the figure below The Toner Cartridge is the heart of the Image Formation System It houses the cleaning conditioning and developing steps of the process The Toner Cartridge contains the photosensitive drum primary charging roller developing station toner cavity and cleaning station Including these components that wear degrade or are consumed in the replaceable Toner Cartridge eliminates the need for a service call when replacement is required The printer also has a new cartridge drive system that minimizes banding with more constant paper speed Cartridge nee i een pA we oe Y j Cleaning blade ee Developing cylinder Photosensitive drum Static charge eliminator Figure 5 7 Toner Cartridge 5 20 Functional Information EN Figure 5 8 EN Photosensitive Drum The special properties of the photosensitive drum allow a
120. d Possible Cause Action Paper does not meet Try a different paper lot see HP LaserJet Printer specifications The Family Paper Specifications Guide paper moisture content conductivity or surface finish may not work correctly with the electrophotographic process DC Controller Replace the DC Controller defective low primary voltage High Voltage Power Replace the High Voltage Power Supply PCA Supply PCA defective Transfer Roller Replace the Transfer Roller defective See also Blank Spots on page 7 55 Table 7 19 Faded Print Bubbles Possible Cause Action No drum ground path Check the contacts for functionality If dirty clean using alcohol if damaged replace the High Voltage Power Supply PCA Toner supply is low Shake the cartridge gently to redistribute the toner or replace the cartridge Print Density is set Change to a darker setting and retry printing incorrectly Troubleshooting the Printing System 7 61 Table 7 19 Faded Print Bubbles continued Possible Cause EconoMode is on EconoMode saves toner by reducing the dot density This may appear to be a print quality problem in some cases Paper does not meet specifications The moisture content conductivity or surface finish may not work correctly with the electrophotographic process Transfer Roller is defective or incorrectly installed If the transfer roller loses conductivity it cannot
121. d a tray or if amessage indicates that a previous print job is still in the printer s memory press GO to print or press Cancel Job to clear the job from the printer s memory Not all messages are described many are self explanatory Some printer messages are affected by the Auto Continue and Clearable Warning settings from the Configuration Menu in the printer s Control Panel If is set on the Control Panel warning messages display on the Control Panel until the end of the job from which they were generated If is set warning messages display on the Control Panel until G0 is pressed If an error occurs that prevents printing and AF SH is set th printer goes offline for 10 seconds before it returns online i is set the message displays until Go is pressed Table 7 5 Alphabetical Printer Messages Control Panel Message EventLog Explanation Recommended Message Action The Control Panel Ask the Network function you are trying to Administrator to unlock access has been locked the function by the network administrator to prevent unauthorized access The Duplexer is not 1 Re install the duplexer connected properly 2 If the message persists make sure the duplexer is connected and the connector is not damaged 3 Replace the Duplexer 7 16 Troubleshooting EN Table 7 5 Alphabetical Printer Messages continued Control Panel Message Message H alternates wi
122. does not specifications meet specifications Paper is loaded Make sure paper is loaded correctly and that the incorrectly guides fit properly against the paper stack Wrong tray Print from a different tray Such as Tray 1 Wrong output bin for Print to a different output bin top or rear output bin paper type Obstruction in paper 1 Check the paper path for paper or label debris path 2 Check for damaged components that could be creasing the paper Troubleshooting the Printing System 7 57 m k Table 7 15 Curl Aabe AaBoCc Possible Cause AaBboCc AaBbCc p d f i aper aoes not mee AaBlbCc printer specifications or is stored improperly Printer s operating environment does not meet specifications Wrong output bin Wrong Fuser setting for paper type 7 58 Troubleshooting Action 1 Print a few more pages to see if the problem corrects itself 2 Turn over the stack of paper in the tray Also try rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Make sure the printer s operating environment meets specifications Print to a different output bin top or rear output bin 1 From the Paper Handling Menu on the Control Panel change the Fuser Mode setting or choose another paper type from the printer driver 2 Turn Paper Reform to on in the Configuration
123. e No correct voltage present at the outlet The power cord is not firmly plugged into the printer and the outlet Blown fuse Defective power switch Defective AC receptacle or AC power line 7 8 Troubleshooting Action Plug the power cord into another AC circuit outlet Inform the customer that the correct line voltage is not available at the outlet Insert the power plug firmly 1 Check the fuse F1 on the Power Supply 2 Replace the fuses if necessary Remove the DC Controller Assembly Measure the resistance between the two terminals of the power switch SW101 by applying the tester probes to the terminals The resistance must be low under 1 KQ when the power is turned ON and high over 6 MQ when the switch is turned OFF Otherwise replace the Power Supply Check the printer s AC receptacle and wiring for the AC power line If no problem is found replace the Power Supply EN Table 7 4 No DC Power Cause No AC power is supplied The overcurrent overvoltage detection circuit activated Blown fuse Defective power supply unit Engine Test Action Check the AC power supply See table 7 3 No AC Power on page 7 8 If the problem is not rectified after the power switch is turned off and on again find the cause of activation of the overcurrent overvoltage detection circuit in the power supply Wait for more than two minutes before turning the printer back on 1 Check
124. e PS error page when PS errors occur EN Configuration Menu Items in this menu affect the printer s behavior Configure the printer according to your printing needs Table 3 8 Configuration Menu Item Values Explanation Set the printer to enter PowerSave after it has been idle for a specified amount of time Turning PowerSave off is not recommended The PowerSave feature does the following 1 Minimizes the amount of power consumed by the printer when it is idle 2 Reduces wear on the printer s electronic components Turns off the display s backlight When you send a print job press a Control Panel key open a paper tray or open the top cover the printer automatically comes out of PowerSave mode Note PowerSave turns off the backlight on the display but the display is still readable Select the default printer language personality Possible values are determined by which valid languages are installed in the printer Normally you should not change the printer language the default is If you change it to a specific printer language the printer will not automatically switch from one language to another unless specific software commands are sent to the printer EN Control Panel Menus 3 17 Table 3 8 Configuration Menu continued Item Values Explanation Dedicate printer memory to save each language s permanent resources You might need to add memory to the printer in
125. e formatter board back into the printer and tighten the two screws 7 Ifan optional duplexer is installed reattach the cable tray and the rear section of the duplexer Reattach any interface cables and the power cord Turn the printer on and test the DIMM Note Single in line memory modules SIMMs used on previous HP LaserJet printers are not compatible with the printer User Installable Accessories 6 3 6 4 Removing and Replacing Parts If an optional duplexer is installed 1 Slide the rear section of the duplexer away from the printer 2 Remove the rear section of the duplexer by lifting and rotating the rear section to clear all of the tabs in the grooves as illustrated 3 Unplug the power cord and disconnect any cables 4 Remove the cable tray by lifting it out of position as illustrated 5 Reverse these steps to install the cable tray and the rear section of the duplexer Make sure the cable tray is properly installed and the cables are routed through the left side EN EN Checking Memory Installation Follow this procedure to verify that DIMMs are installed correctly 1 Check that the printer s control panel displays ERE when the printer is turned on If an error message appears a DIMM might have been incorrectly installed Check the printer messages 2 Print a new configuration page 3 Check the memory section on the configuration page and compare it to the configuration page printed
126. e printer supports a wide range of paper sizes Check the printer software for supported sizes To print custom size paper see the User s Guide 2 Capacity may vary depending on paper weight and thickness and environ mental conditions EN Paper Specifications 1 11 Table 1 7 Paper Specifications Tray 2 or Optional 250 sheet Tray Supported Dimensions Weight Capacity Paper Letter 8 5 by 11 in 216 by 279 mm A4 8 3 by 11 7 in 210 by 297 mm Executive 7 3 by 10 5 in 191 by 267 mm Legal 8 5 by 14 in 216 by 356 mm 2 h f 20 B5 JIS 7 2 by 10 in 16 to 28 Ib pea aries 182 by 257 mm 60 to 105 g m2 75 g m paper g 50 100 transparencies A5 5 8 by 8 2 in 148 by 210 mm 11x17 11 by 17 in 279 by 432 mm A3 11 7 by 16 5 in 297 by 420 mm B4 JIS 10 1 by 14 3 in 257 by 364 mm 1 The printer supports a wide range of media sizes Check the printer software for supported sizes 2 Capacity may vary depending on media weight and thickness and environ mental conditions 1 12 Printer Description EN Table 1 8 Paper Specifications Optional 500 sheet Tray Supported Dimensions Weight Capacity Paper Letter 8 5 by 11 in Letter R3 216 by 279 mm A4 8 3 by 11 7 in A4 R3 210 by 297 mm Executive 7 3 by 10 5 in 191 by 267 mm Legal 8 5 by 14 in 216 by 356 mm B5 JIS 7 2 by 10 in 182 by 257 mm 500 sheets of 20 Ib
127. e right side roller cam and slide the cam to the right 4 Remove the D Roller from the shaft Figure 6 32 Tray 1 Roller Hint To reassemble the roller orient the D Roller so that the thumb grip is on the left Then slide the Roller between the two cams EN Removing Assemblies 6 41 Tray 2 Roller 1 Remove the Paper Tray and tilt the printer backwards with the front of the printer facing up 2 Depress the tab A on the right side cam and slide the cam and the bushing to the right 3 Rotate the D Roller 180 and remove it from the shaft ee aM JA Figure 6 33 Tray 2 Roller bottom view of printer Item Explanation A Tab is behind this cam B Cam C Bushings Hint To reassemble the roller orient the pin on the D Roller so that it lines up with the hole on the right side cam Slide the cam toward the Roller until the tab snaps into place 6 42 Removing and Replacing Parts EN Figure 6 34 EN Paper Feed Roller Assembly 1 Remove the Top Cover page 6 12 Left Side Cover page 6 23 Main Gear Assembly page 6 34 Paper Handling PCA page 6 31 and Pickup Gear Assembly page 6 36 2 Remove the Paper Feed Roller Clutch C located on the left side of the Paper Feed Roller Assembly below the Registration Assembly Clutch Remove the E Clip on the clutch and slide the clutch off the shaft If necessary free the cable from the retaining clip on the inside of the chassis beh
128. e the locking tabs on the end of the shaft and slide the shaft through the ring 6 12 Removing and Replacing Parts EN CAUTION It is critical that step 1 be performed before you attempt to remove the Top Cover If you damage the Arm the printer will not operate A Top screws B Toner Cartridge Drive Arm Rear screws Remove the two self tapping screws on the top of the chassis Remove the two self tapping screws on the top portion of the back of the printer The Rear Cover needs to be opened or removed for the screws to be accessible EN Removing Covers 6 13 4 The cable connecting the Control Panel to the printer chassis is on the left side of the Top Cover Tilt the cover to the left as you lift it Be careful not to stress the cable as you loosen the cover Figure 6 6 Control Panel Cable 5 Disconnect the Control Panel cable from the printer chassis by grasping the wires and gently pulling the connector straight up 6 Remove the Top Cover 6 14 Removing and Replacing Parts EN Control Panel Overlay and Control Panel 1 2 Remove the Top Cover page 6 12 The Control Panel Overlay is held in place on the Top Cover by two tabs on each side Slide a small flat blade screwdriver along the outside edge of the Control Panel Overlay to disengage the two tabs on the outside of the cover Lift the Overlay off of the Control Panel Figure 6 7 Releasing Control Panel Overlay 4 E
129. ease the size of the RAM disk Change the RAM disk size from the Configuration Menu in the printer s Control Panel EN Table 7 5 Alphabetical Printer Messages continued Control Panel Message Message EN EventLog Explanation The RAM disk is protected and no new files can be written to it The specified tray is empty but the current job does not need this tray in order to print correctly If this message appears and the tray contains paper a sensor could be damaged PS301 detects paper in Tray 2 PS401 detects paper in Tray 1 PS1601 detects paper in the optional 250 sheet feeder PS2001 detects paper in the optional 500 sheet feeder See figure 7 19 on page 7 92 for sensor locations Recommended Action Disable the write protection through HP JetAdmin 1 Load the empty tray to clear the message If you do not load the specified tray the printer will continue printing from the next available tray and the message will continue to display 2 Inspect the tray for damaged tabs 3 Check Sensor Arm Flags for damage and be sure they move freely 4 Replace any defective sensors Troubleshooting the Printing System 7 23 Table 7 5 Alphabetical Printer Messages continued Control Panel Message 7 24 Troubleshooting EventLog Explanation One of the following occurred There is no paper loaded in the specified tray or the paper is not the size requ
130. eed Roller RG5 3522 000CN Figure 8 11 Assembly Paper Feed Belt RG5 3526 000CN Figure 8 10 Registration Roller RG5 3524 000CN Figure 8 12 Assembly EN Illustrations and Parts Lists 8 9 Figure 8 2 External Covers and Panels Table 8 5 External Covers and Panels Item No Part No Quantity Description 1 RG5 3547 000CN 1 Front Inner Cover Assembly 1A RB1 6134 000CN 1 Tray 1 Sensor Arm 1B RB1 6136 000CN 1 Tray 1 Sensor Arm Spring 8 10 Parts and Diagrams EN Table 8 5 External Covers and Panels continued Item No Part No Quantity Description 1C RB2 1772 000CN 1 Tray 1 Leaf Spring 2 RG5 3548 000CN 1 Tray 1 Paper Guide 3 RG5 3549 000CN 1 Front Cover Assembly 4 RG5 3550 000CN 1 Left Side Cover Assembly 5 RG5 3551 000CN 1 Rear Cover Assembly 5A RG5 3552 000CN 1 Face Up Tray Assembly 5B RB2 1970 000CN 1 Paper Guide 5C RB2 1975 000CN 1 Right Latch Plate 5D RS5 2952 000CN 4 Latch Plate Springs 5E RB2 1976 000CN 1 Left Latch Plate 5F RB2 1991 000CN 1 Right Latch Block 5G RB2 1992 000CN 1 Left Latch Block 5H RB2 1977 000CN 1 Cover Support Strap 5I RB2 1978 000CN 1 Face Up Deflector 6 RB2 1745 000CN 2 Front Cover Pin 7 RB2 1749 000CN 1 Right Side Cover Assembly 8 RB2 1747 000CN 1 Face Down Auxiliary Cover 9 RB2 1755 000CN 1 Right Corner Cover 10 RB2 1756 000CN 1 Left Corner Cover EN Illustrations and Parts Lists
131. effectively pull toner from the drum to the paper Laser Scanner door is not opening properly High voltage contact springs are dirty or defective The high voltage contacts are mounted on the High Voltage Power Supply PCA and protrude into the toner cartridge cavity 7 62 Troubleshooting Action Turn EconoMode off Try a different paper lot see HP LaserJet Printer Family Paper Specifications Guide Inspect the Transfer Roller for proper installation and contact If the Transfer Roller is damaged replace it 1 Remove and reseat the toner cartridge 2 Check the Laser Scanner shutter door for proper operation If defective replace the Laser Scanner Assembly Check the contacts for functionality If dirty clean using alcohol if damaged replace the High Voltage Power Supply PCA EN AQBbCc AQBbCc AQBbCc AaBboCc AaBbCc EN Table 7 19 Faded Print Bubbles continued Possible Cause Action High Voltage Power Replace the High Voltage Power Supply PCA Supply PCA is defective DC Controller PCA is Replace the DC Controller PCA defective The DC Controller supplies the proper voltage to the High Voltage Power Supply PCA Table 7 20 Gray Background Possible Cause Action Paper does not meet 1 Print a few more pages to see if the problem printer specifications corrects itself or is stored 2 Turn over the stack of paper in the tray Also try improperly rotati
132. elope Margins The following table gives typical address margins for a Commercial 10 or DL envelope Table 1 12 Envelope Margins Return Address Delivery Address Type of Address Top Margin Left Margin 0 6 in 15 mm 0 6 in 15 mm 2 in 51 mm 3 5 in 89 mm Note Note For the best print quality position margins no closer than 0 6 in 15 mm from the edges of the envelope Envelope Storage Proper storage of envelopes helps contribute to good print quality Envelopes should be stored flat If air is trapped in an envelope creating an air bubble the envelope may wrinkle during printing Card Stock and Heavy Paper Many types of card stock can be printed from Tray 1 including index cards and postcards Some card stock performs better than others because its construction is better suited for feeding through a laser printer For optimum printer performance do not use paper heavier than 53 Ib 199 g m in Tray 1 or 28 Ib 105 g m in other trays Paper that is too heavy might cause misfeeds stacking problems paper jams poor toner fusing poor print quality or excessive mechanical wear Printing on heavier paper may be possible if the tray is not filled to capacity and paper with a smoothness rating of 100 180 Sheffield is used 1 20 Printer Description EN Note EN Card Stock Construction Smoothness 36 53 Ib 135 199 g m card stock should have a smoothness rating of 100 180 Sheffield 16 36 Ib
133. embly to modulate the laser diode on and off and to drive the Laser Scanner motor See Image Formation System on page 5 18 for more information 5 8 Functional Information EN EN Paper Motion Monitoring and Control The DC Controller Board controls paper motion by continuously monitoring the various paper sensors and coordinating paper movement with the other print processes For more information see Paper Feed System on page 5 29 Solenoids Sensors Clutches and Switches See DC Controller PCA Inputs and Outputs on page 7 107 Engine Test Print See Engine Test on page 7 9 Power Supply System 5 9 Figure 5 5 Motors See Timing Diagram on page 5 47 for specific timing details for the printer motors The Main Motor MT1 is controlled by the DC Controller Board The Main Motor drives the main Gear Assembly and rotates during the Initial Rotation period following power on the Print period the Last Rotation period or whenever the printer s Top Cover is opened and closed DC controller PCA Main motor J601 1 Main Motor Control The Main Motor is a DC brushless motor with hall elements and is unified with the motor drive circuit The CPU IC501 sets the main motor drive signal MON to L and rotates the main motor When printing at 1200 dpi the CPU sets the main motor rotation switching signal HALF to L and decreases the rotation speed of the main motor to half
134. ensor 250 sheet feeder paper sensor Duplexer reversing unit paper sensor Duplexer side registration guide home position sensor Duplexer refeed paper sensor Tray 2 pickup solenoid Tray 1 pickup solenoid Main power switch EN Table 7 32 Table 1 Sensors and Signals Sensor CL405 CL406 PS301 Sw401 SW403 SW404 SW405 SW1601 SW1602 SW1603 SW1604 TSW1 TH1301 EN Name Registration roller clutch Feed roller clutch Tray 2 paper sensor Top cover switch Tray 2 paper size switch 1 Tray 2 paper size switch 2 Tray 2 paper size switch 3 250 sheet feeder paper size sensors 250 sheet feeder paper size sensors 250 sheet feeder paper size sensors 250 sheet feeder paper size sensors Fuser thermal switch Fuser roller thermistor Reference Diagrams 7 91 Brow PS303 lt gt OISTH1301 nay swaot Ke PS402 01 m amp i PS302 Figure 7 19 Location of Sensors and Switches 7 92 Troubleshooting EN Reversing unit paper sensor Side registration guide home position sensor L1701 SSN Deflector drive PS1703 gt caren V psi702 Refeed paper Om i Figure 7 20 Duplexer Sensors and Switches EN Reference Diagrams 7 93 Figure 7 21 Motors 7 94 Troubleshooting Printer 500 sheet paper feeder EN Duplexing unit Figure 7 22 Motors Duplexing unit Name of symbol Mi Main motor M1501 Pape
135. ensor gt i 1 decreases Cartridge TE Toner sensor i Cyt TNRCHKT Detects no cartridge ea installed and toner out PS301 Caette sensor L when sensor detects paper PS302 Paper sensor L when sensor detects paper Figure 7 34 DC Controller PCA I O 2 of 4 7 108 Troubleshooting EN DC controller PCA 24V Tray 2 J306 1 4 solenoid oe 2 CSTFD L to start tray pick up Terminal PCA 24V Tray 1 J404 1 1Y401 16 J302 5 4 pick up SL404 21 solenoid MPFD L to start Tray 1 pick up Registration roller cluch RGDRV Registration roller rotates when H Feed roller ciutch FEEDDRV H to rotate feed roller rotates Power suppl PADL Pey J201 3305 3202 2 40 1 FANLOCK L when the fan is locked I 24V L for low speed rotation Exhaust fan J202 1 TEAN ON HALFFAN H for 600DPI high speed rotation H for 1200DPI middie speed rotation J202 3 control circuit 7 1200DPI_ L when the 12000PI SE Mas l i Sw101 l l J l AC power l Power switch l I RL101 i l Rela Fuser p neay J201 J305 O ay a 4 37 npa J1302 J1308 sigs J102 FSRDRV1 H to turn the fuser heater 1 ON i J201 J305 z gt z an 2_ 39 ESRDRV2 H to turn the fuser heater 2 ON H1301 H1302 i PRM ugor vaos 1 _ 36_ 5 H to turn the relay ON and Fuser heater 1 Fuser l ALYD cut power to the fusing heater2 heaters TSw1 l l jThermoswich l y201 s305 i 41308 J103 ae 1
136. ent damage to the Toner Cartridge do not use ammonia based cleaners on or around the printer Do not touch the transfer roller Skin oils on the roller can reduce print quality If toner gets on your clothes wipe it off with a dry cloth and wash your clothes in cold water Hot water sets toner into fabric Location of the Transfer Roller Do Not Touch 4 2 Printer Maintenance EN Table 4 1 Cleaning the Printer Component Outside Covers Inside General Paper Pickup Feed and Separation Rollers Separation Pad Registration Roller Transfer Roller Fuser Cleaning Method Notes Use a water dampened cloth Do not use solvents or ammonia based cleaners With a dry lint free cloth wipe any dust spilled toner and paper particles from the paper path area the registration roller and the Toner Cartridge cavity Use a water dampened lint free cloth Use a dry lint free cloth Use a dry lint free cloth Use a dry lint free cloth DO NOT TOUCH with your fingers Use a water dampened lint free cloth EN Cleaning the Printer and Accessories 4 3 Note Note CAUTION Using the Printer Cleaning Page If toner specks appear on the front or back side of your print jobs follow the procedure below From the printer s control panel do the following 1 Press Menu unti Pr
137. eparation for printing and cleans the transfer charging roller to stabilize the transfer high voltage During this period the printer detects the remaining toner Forms an image on the photosensitive drum according to the VDO and VDO signals input from the video controller and transfers the image to paper Basic Sequence of Operation 5 45 Table 5 1 Printer Timing Period Timing Purpose LSTR last After the primary DC voltage Delivers the final page rotations turns off until the Main Motor and cleans the transfer stops charging roller 5 46 Functional Information Remark As soon as the PRNT signal is input from the Formatter PCA the printer enters the INTR period EN ESSSSSSssss sol 7 fom be 20 1Sd Josuas Jaded A a p sasng E dOL eus abed yo doy _ spuodeas yun ozo eee vomoqy yt Z0rSq 10sues 5ed yo doy S0710 yana saos uonesi ay 0rSa Josuas saded sayjos uogeysibay 90719 yan allos paag 0879 piouajos dn y jd e Apeal ouueag ZN 100w sauueag LN 100W uen LNHg feuBis pug Qsud feuBls pesy o1q ZOStH IOSLH 19694 1 SN4 NO Yo IMs Jomod Timing Diagram 27 Figure 5 Basic Sequence of Operation 5 47 EN 5 48 Functional Information EN Removing and Replacing Parts Overview This chapter discuss
138. erial Cables 9 9 pin serial cable male female C2932A 9 25 pin serial cable male female C2933A Serial Adapter 25 9 pin adapter male female C2809A Macintosh Computer Serial Cable 92215S Macintosh Network Cable Kit 92215N Enhanced I O Cards Ethernet RJ 45 only J3110A Ethernet RJ 45 and BNC Local Talk J3111 61003 J3111A Token Ring RJ 45 and DB 9 J3112A Maintenance Kit 110V C4110 67902 C4110 69006 220V C4110 67903 C4110 69007 EN Accessories and Supplies 8 5 Common Hardware and Replacement Cables Table 8 2 Screws Used in the Printer Description Part No Screw M4x10 Pan Head Tapping XB4 7401 007CN Screw M4x8 Truss Head Tapping XB4 7400 807CN Screw M3x6 TP XA9 0267 000CN Screw M4x16 W Washer XA9 0838 000CN Screw M4x6 W Washer XA9 0265 000CN Screw M3x4 TP XA9 0815 000CN E Ring XD2 1100 322CN Screw M4x6 Screw w Washer XB2 6400 607CN Screw M3x8 TP Screw XB6 7300 807CN Screw Long DC Controller Screws M3x25 XA9 0974 000CN Screw with Spring RF5 2418 000CN Table 8 3 Replaceable Cables Description Part No Figure No Item No Cable Display Accessory Power Photo RG5 3557 000CN Figure 8 4 26 Sensor Cable Fuser AC RG5 3561 Figure 8 7 4 Cable Scanner RG5 3562 Figure 8 7 3 Cable Paper Sensor RG5 3554 000CN Figure 8 4 20 Cable Paper Sensor RG5 3558 000CN Figure 8 4 21
139. ermine how the printer behaves when toner is low The Ti LGLI message will first appear when the Toner Cartridge is almost out of toner About 100 to 300 aas can still be printed The printer will continue to print LOLI message is while the 7 displayed The printer will go offline and wait for further action 3 20 Printer Operation EN Table 3 8 Configuration Menu continued Item Values Explanation Determine how the mopier functions behave This item appears only when there is at least 8 MB of memory or an optional hard disk is installed H This option is available if there is either a hard disk installed or a RAM disk configured in memory This option uses I O data stored in printer memory for generating multiple original prints All copies will print at the same speed as the first copy This option is available if there is a hard disk installed and at least 8 MB of memory This option uses engine video data for printing multiple original prints and should print all copies after the first at the printer s maximum speed Disables the mopier functions The printer will not spool any jobs to the hard disk When the mopier mode is changed any downloaded resources such as fonts or macros will need to be downloaded again unless they are stored on an optional hard disk or flash DIMM Determine how the RAM disk is configured This item appears only if there is no option
140. es 0 000 c cece eee eens 2 5 Technical Assistance 000 cece ees 2 5 Toner Cartridge Information 00 cece eee 2 8 Warranty Statement 0 0 0 0 c ccc eee 2 9 Contents 1 3 Printer Operation OVEIVIEW cece e ed oe tbe tee hea MENEE eee ee eed ends 3 1 Using the Control Panel 0 200 cece eee 3 2 Control Panel Layout 2 00000 3 2 Control Panel Lights 200 000 e eee 3 2 Control Panel KeyS 00 cece eee 3 3 Settings and Defaults 0 0000 c eee eee 3 4 Control Panel Menus 00 0c eee eee 3 5 Information Menu 0000 cee eee 3 6 Paper Handling Menu 00 000 e eee eee 3 7 Print Quality Menu nananana anaana 3 10 Printing Menu 2 0 2 0 cece eee 3 13 Configuration Menu 000 0c eee eee 3 17 VOMO NU 6 ce eee eens 3 24 EIO Menu Networked Printers 00 05 3 27 Resets Menu 0 0 0 c cece eee eee 3 29 Service Mode 000 cee eee 3 30 Service Menu 0 000 cee eee 3 31 Setting the Page Count Maintenance Count and Serial Number 200000 eee aeee 3 31 Cold Reset Paper 0 0 cece eee eee eee 3 34 DiaQnOSUCS 5 2 veg bei ved ede Ou bbw bY ee EE need 3 34 Clear Event Log 0 00 cece eee 3 34 Testing the Printer 0 00000 cece eee 3 35 Resetting the Printer 0000 a 3 36 System Configuration 0000 cee eee
141. es the following e User Installable Accessories e Removal and Replacement Strategy e Removing Covers e Removing Assemblies EN Overview 6 1 User Installable Accessories 6 2 Removing and Replacing Parts Memory Upgrade CAUTION Static electricity can damage dual in line memory modules DIMMs When handling DIMMs either wear an antistatic wrist strap or frequently touch the surface of the DIMM s antistatic package then touch bare metal on the printer If you have not already done so print a configuration page to find out how much memory is installed in the printer before adding more memory 1 Turn the printer off Unplug the power cord and disconnect any cables If an optional duplexer is installed you will need to remove the rear section and the cable tray first 2 Loosen the two captive thumb screws on the back of the printer 3 Grasp the screws and pull the formatter board out of the printer Place it on a flat non conductive surface 4 Remove the DIMM from the antistatic package Hold the DIMM with fingers against the side edges and thumbs against the back edge Align the notches on the DIMM with the DIMM slot Check that the locks on each side of the DIMM slot are open or outward 5 Press the DIMM straight into the slot press firmly Make sure the locks on each side of the DIMM snap inward into place To remove a DIMM the locks must be released EN EN 6 Slide th
142. ess ltem until Press Select to create the cleaning page A WO N Follow the instructions on the cleaning page to complete the cleaning process In order for the cleaning page to work properly print the page on copier grade paper not bond or rough paper You might need to create a cleaning page more than once When toner has been cleaned from inside the printer shiny black spots will appear on the page s black strip If white spots appear on the black strip create a cleaning page again To ensure good print quality with certain types of paper use the cleaning page every time the toner cartridge is replaced If the cleaning page is frequently needed try a different type of paper Cleaning Spilled Toner Defective Toner Cartridges can develop leaks Also after a paper jam has occurred there may be some toner remaining on the rollers and guides inside the printer The pages that print immediately after the jam may pick up this toner Clean spilled toner with a cloth dampened with cold water Do not touch the Transfer Roller with the damp cloth or with your fingers Do not use a vacuum cleaner unless it is equipped with a micro fine particle filter 4 4 Printer Maintenance EN Preventative Maintenance The preventative maintenance cycle for this printer conducted by service personnel is every 150 000 pages To order the maintenance kit see page 8 4 The kit contains one Fuser one Transfer Roller one Tray 1 Pickup
143. ested or the Control Panel is not set for the size of paper loaded The tray is not properly adjusted for size The default paper size is set incorrectly If this message appears and the tray contains the correct size of paper a sensor could be damaged or a paper sensor lever could be stuck An external paper handling device detected an unsupported paper size The printer will go offline until the condition is corrected Recommended Action 1 Load the requested paper into the specified tray Ensure that the trays are correctly adjusted for size The size displayed on the front of the paper tray must match the size of paper loaded in the tray The tray type settings and size for Tray 1 must be set from the printer s Control Panel If you are trying to print A4 or letter size paper and this message appears make sure the default paper size is set correctly from the Printing Menu in the printer s Control Panel 2 Press Go to print from the next available tray 3 Press Value to scroll through the available types and sizes 4 Press Select to accept the alternate type or size 5 Inspect the switches in the tray 6 Turn the printer on with the tray removed and push the switches by hand to see if they register Load a supported paper size in the tray EN Table 7 5 Alphabetical Printer Messages continued Control Panel EventLog Explanation Recommended Message Message Action
144. existent directory The disk is full 1 Delete files from the EIO disk and then try again or add a flash DIMM 2 Download or delete files from HP JetAdmin and download or delete fonts from HP FontSmart See the software help for more information The EIO disk is protected Disable the write and no new files canbe protection through written to it HP JetAdmin The Flash DIMM had a Remove the Flash DIMM critical failure and no and replace it with a new longer can be used one The requested operation Remove the flash DIMM could not be performed and replace it with a new You might have one attempted an illegal operation such as trying to download a file toa non existent directory 7 18 Troubleshooting EN Table 7 5 Alphabetical Printer Messages continued Control Panel Message Message EN EventLog Explanation Recommended Action The flash DIMM is full 1 Delete files from the Flash DIMM or add another DIMM 2 Download or delete files from HP JetAdmin and download or delete fonts from HP FontSmart See the software help for more information The flash DIMM is protected and no new files can be written to it Disable the write protection through HP JetAdmin If the message displays continually a DIMM may not be inserted completely Reseat DIMM s See the documentation that came with the paper handling device for assistance An input paper
145. f possible Roll it up in a clean sheet of paper to protect it after removal 1 Face the front of the printer and lift the small green handle on the right side of the Registration Assembly exposing the Transfer Guide the metal plate that rests against the Transfer Roller Remove the two self tapping screws and carefully lift out the Transfer Guide Be careful not to touch the Transfer Roller with your fingers Figure 6 20 Transfer Guide Removal Item Explanation A Screws B Transfer Guide 6 28 Removing and Replacing Parts EN Figure 6 21 Right Side of Transfer Roller Item Explanation A Clip B Cleaning Brush Note The Transfer Roller is held on the right side by a hinged clip 2 Free the Transfer Roller from the hinged clip by lifting straight up using the blue cleaning brush located inside of the top cover Figure 6 21 3 Free the left side of the Transfer Roller by lifting straight up Remove the Transfer Roller being careful not to touch the roller with your fingers EN Removing Assemblies 6 29 Fuser 1 Remove the Rear Door and Rear output bin page 6 10 2 Facing the back of the printer remove the two machine screws holding the Fuser in the chassis See Figure 6 22 3 Using a small flat bladed screw driver lift at D to disengage the Fuser Assembly detents Grasp the green Pressure Release Handles and pull the Fuser out of the chassis Note The fuser power
146. fold lines can vary considerably not only between manufacturers but also within a box from the same manufacturer Successful printing on envelopes depends upon the quality of the envelopes When selecting envelopes consider the following components Weight The weight of the envelope paper should not exceed 28 Ib 105 g m or jamming may result e Construction Prior to printing envelopes should lie flat with less than 0 25 in 6 mm curl and should not contain air Envelopes that trap air may cause problems e Condition Make sure envelopes are not wrinkled nicked or otherwise damaged e Sizes in Tray 1 From 3 by 5 in 76 by 127 mm to 12 28 by 18 5 in 312 by 470 mm Always print envelopes from Tray 1 To prevent envelopes from wrinkling or jamming open the rear output bin Envelopes with Double Side Seams Double side seam construction has vertical seams at both ends of the envelope rather than diagonal seams This style may be more likely to wrinkle Be sure the seam extends all the way to the corner of the envelope as illustrated below Acceptable Unacceptable Figure 1 5 Envelopes with Double Side Seams EN Paper Specifications 1 19 Envelopes with Adhesive Strips or Flaps Envelopes with a peel off adhesive strip or with more than one flap that folds over to seal must use adhesives compatible with the heat and pressure in the printer The extra flaps and strips might cause wrinkling creasing or jams Env
147. ge formation system is the main part of the printer and consists of six stages 1 Cleaning 4 Developing 2 Conditioning 5 Transferring 3 Writing 6 Fusing When the Formatter Board sends the print signal to the DC Controller Board it drives the main motor to rotate the photosensitive drum the developing cylinder the primary charging roller and the transfer charging roller The primary charging roller places a uniform negative charge on the surface of the photosensitive drum The laser beam modulated by the video signal is illuminated on the photosensitive drum surface to form the latent image on the drum with the laser diode The latent image formed on the photosensitive drum is changed to a visual image by the toner on the developing cylinder then transferred to the paper by the transfer charging roller The residual toner on the photosensitive drum surface is scraped down with the cleaning blade The potential on the drum is uniformed by the primary charging roller to prepare for a new latent image The cartridge has a toner sensor that detects the remaining toner level and the presence of the cartridge If the toner in the cartridge becomes lower than the specified level or if there is no cartridge in the printer it is reported to the Formatter 5 18 Functional Information EN Laser beam Primary charging roller J ry ging p Tray 1 OO mal Blade pick up roller Cleaning blade Developing Fuser Ph E ji Y
148. h of an inch The beam can be turned on and off to place a dot of light every 1 1200th of an inch This is how the printer achieves its 1200x1200 dpi resolution After the writing process the drum surface has an invisible latent electrostatic image At the end of each sweep the beam strikes the beam detect lens generating the Beam Detect Signal BD The BD signal is sent to the DC Controller Board where it is converted to an electrical signal used to synchronize the output of data VDO for one sweep scan line and to diagnose problems with the laser diode or scanner motor 5 24 Functional Information EN Development cylinder Figure 5 12 EN Developing the Image The developing process develops the latent electrostatic image into a visible image on the drum The developing unit consists of a metallic cylinder that rotates around a fixed magnetic core inside the toner cavity Toner is a powdery substance made of black plastic resin bound to iron particles which is uniformly attracted to the magnetic core of the cylinder The toner particles obtain a negative surface charge by rubbing against the developing cylinder which is connected to a negative DC supply The negatively charged toner is attached to the discharged exposed grounded areas An AC potential is applied to the developing cylinder to decrease the attraction between the toner and the magnetic core of the cylinder and to increase the repelling action of the toner
149. handling device has a condition that needs attention before printing can resume 1st X Device number in chain 2nd X Device type 3 types 1 Input 2 Output 3 Stapler stacker unit yy Device specific error The printer is unable to print the current job because the duplexer s front cover is not installed or not inserted correctly Re insert the duplexer s front cover Troubleshooting the Printing System 7 19 Table 7 5 Alphabetical Printer Messages continued Control Panel EventLog Explanation Message Message The printer is unable to print the current job because the specified tray is open or not inserted correctly Programs and fonts can s be stored on the printer s alternates with file system At bootup time YT g these entities are loaded into RAM These entities can take a long time to load into RAM depending on the size and number of entities being loaded The ri i specifies a sequence number indicating the current program being loaded One of the following occurred A manual feed was requested There is no paper in Tray 1 The wrong size of paper is loaded The Control Panel is not set for the kind of paper loaded 7 20 Troubleshooting Recommended Action 1 Re insert the specified tray 2 Check for damaged tabs in the tray 3 Check for damaged switches in the printer 4 Replace the PCA Controller in the feeder Wait for the
150. has successfully powered up and completed its internal diagnostics the appears If communication is lost an t appears followed by a two digit error code See the HP JetDirect Network Interface Configuration Guide for further details and recommended action The Network Statistics column indicates that network activity has been occurring Bad packets framing errors unsendable packets and collisions should be minimal If a high percentage greater than one percent of these occur contact the network administrator All of the statistics are set to zero when the printer is powered off The Novell Status block should state the Novell printer server name to which the printer is connected If the node name reads NPIXxxxxx xxxxxx last six digits of the ElO s LAN address the EIO card has not been configured for a Novell server This could indicate that the card is operating under an IPX protocol other than Novell Consult with the network administrator if the Node Name is not present In the TCP IP protocol block the default IP address is 192 0 0 192 It is acceptable to operate the printer with this default address The error message ARP DUPLICATE ADDRESS may appear in this block This is also an acceptable error code if the TCP IP protocol is not being used Check with the network administrator to determine the correct IP Address for the printer 7 78 Troubleshooting EN Reference Diagrams Locat
151. he Main Gear Assembly 3 Carefully separate the motor from the Gear Assembly Figure 6 59 Main Gear Assembly with Motor rear view Item Explanation A Screws 6 70 Removing and Replacing Parts EN Toner Cartridge Guides 1 Remove the Top Cover page 6 12 and Left and Right Side Covers page 6 23 Release the leading tab A first See Figure 6 60 Rotate the Guide in the direction shown to unlock the remaining two tabs 4 Slide the Guide out of the chassis Figure 6 60 Toner Cartridge Guide Item Explanation A Leading Tab B Tabs Hint To reinstall the Guide insert the two non leading tabs B first Twist counter clockwise to lock Gently flex the leading tab A so that it will fit into the slot easily Then snap the Guide into place EN Removing Assemblies 6 71 Power Inlet Assembly 1 Remove the Top Cover page 6 12 and the Right Side Cover page 6 23 2 Remove the Switch Rod by flexing it slightly and unhooking it from the switches on each end 3 Remove the three self tapping screws B from the Power Inlet housing 4 Remove the machine screw A and grounding wire Figure 6 61 Power Inlet Assembly right side view of printer Item Explanation A Grounding Wire Screw B Screws 6 72 Removing and Replacing Parts EN Optional 500 sheet Tray Disassembly 1 Using a flathead screwdriver release the locking tabs by p
152. he 8 bit microcomputer which controls the serial communications between the operation sequence control of the duplexing unit and the DC controller PCA of the printer The duplex driver PCA drives motors and solenoids with various commands from the DC controller PCA The duplex driver PCA also sends the status of the Duplexer back to the printer Reversing Refeed System The paper is first fed into the Duplexer with the duplex deflector in the printer In the Duplexer the reversing roller switches the feeding direction of the paper After the side registration guide adjusts the side registration the paper is sent back into the printer with the feed and refeed rollers The reversing motor PM1701 the side registration guide drive motor PM1702 and the refeed motor are all stepping motors They are controlled both in straight and reverse rotation by the microcomputer CPU on the duplexing driver PCA The reversing roller is driven by the reversing motor PM1701 The feed and refeed rollers are driven by the refeed motor PM1703 The side registration guide is driven by the side registration guide drive motor PM1702 and is adjusted according to the size of the paper 5 38 Functional Information EN Reversing motor drive signal Figure 5 22 EN DC controller PCA Duplexing driver PCA awe Switchback rofler1 PS1701 WY Serial line Duplexing unit deflector drive signal DXSLD
153. he gear that was marked in step 3 Verify that the mark moved If the mark did not move inspect the Main Drive assembly to ensure that it is meshing with the Toner Cartridge gears If the drive gears function and the drum does not move replace the Toner Cartridge This test is especially important if refilled Toner Cartridges are in use Troubleshooting the Printing System 7 75 Note Interface Troubleshooting This section provides an overview of the printer s interface requirements Communications Check Communication problems are normally the customer s responsibility Time spent attempting to resolve these problems may not be covered by the product s Hewlett Packard warranty Refer the customer to the network administrator for assistance in troubleshooting network problems If the printer is not connected to an MS DOS based host proceed to the Communications Checks table in this section Test Message After the printer is installed verify communications between the printer and the IBM compatible computer Enter the following at the DOS prompt C DIR gt LPT1 Enter for printing to parallel port 1 The printer should print a directory listing of the C directory EIO Troubleshooting The JetDirect Configuration Page shown in Figure 7 7 contains valuable information regarding the current status of the ElO accessories Before attempting to troubleshoot a network problem or notifying your network consultant
154. he presence of Tray 2 installed in the printer are detected by four switches SW403 SW404 SW405 and SW406 on the terminal PCA When the paper is fed from Tray 2 the Tray 2 pickup solenoid SL306 and the feed roller clutch CL406 turn on while the main motor M1 is rotating Then the Tray 2 pickup roller and the feed roller start rotating to feed a sheet of paper into the printer When the paper is fed from Tray 1 the Tray 1 pickup solenoid SL404 turns on while the main motor M1 is rotating Then the Tray 1 feed roller starts rotating to feed a sheet of paper into the printer Paper Feed System 5 29 The paper passes through the registration roller paper sensor PS403 and stops at the registration roller to loop the leading edge and its skew is corrected Then the registration clutch CL405 turns on to restart paper feed The DC controller PCA sends the top of page signal TOP to the Formatter PCA within a specified period of time after the top of page sensor PS402 detects the leading edge of the paper The Formatter PCA sends the video signal VDO VDO within a specified period of time after it receives the TOP signal to align the image leading edge on the photosensitive drum with the leading edge of the paper already fed The paper then passes through the transfer unit separation unit fuser and deliver unit and is output onto the rear output bin or the top output bin There are three photointerrupters PS402 PS403
155. he right side of the chassis The fourth may have been disconnected during fan removal page 6 39 already For the two large connectors use a flat blade screwdriver to release the locks by pressing down on the tabs on top of the connectors Be sure to pull the cables away from the chassis 3 The remaining connections are located on the left side of the chassis Disconnect the ribbon cable the 2 pin the 3 pin and the two 20 pin connectors Be sure to pull the cables away from the chassis 4 Remove five screws on the back side of the chassis Figure 6 37 Two machine screws A are located on the top surface of the metal housing one machine screw C has a lock washer and a ground wire and two self tapping screws B are located at the bottom of the DC Controller Assembly 6 46 Removing and Replacing Parts EN Figure 6 37 DC Controller Assembly rear view of printer ltem Explanation Machine Screws Self tapping Screws Lock Washer Grounding Wire EN Removing Assemblies 6 47 Figure 6 38 DC Controller Assembly long screws Item Explanation A Long Screws 5 Remove the two screws A Figure 6 38 located at the back of the DC Controller Assembly inside the chassis These are long screws their position requires the use of a magnetized screwdriver 6 Facing the rear of the printer remove the two spring loaded machine screws closest to the ground wire removed in
156. ies Printer Weight without toner cartridge e HP LaserJet 5000 printer 50 Ib 23 kg e HP LaserJet 5000 N 5000 GN printers 75 Ib 34 kg e HP LaserJet 5000 N 5000 GN printers with duplexer and optional 250 sheet feeder 114 Ib 52 kg EN Site Requirements 1 9 Environmental Requirements Table 1 4 Printer and Toner Cartridge Environmental Conditions Item Operating Storage Temperature 50 91 F 10 32 C 4 to 140 F 20 to 60 C Relative Humidity 20 80 RH with no 10 TO 95 RH condensation Table 1 5 Acoustic Emissions Per ISO 9296 Printer State Sound Power Printing 16 pages per Lwaa 6 6 bels A minute ppm Printing 8 ppm Lwad 6 3 bels A PowerSave Lwad 4 4 bels A 1 10 Printer Description EN Paper Specifications Table 1 6 Paper Specifications Tray 1 The following tables show paper specifications for the printer Supported Dimensions Weight Capacity Paper Minimum Size 3 by 5in custom 76 by 127 mm 16 to 53 Ib 100 sheets of 20 Ib Maximum Size custom 12 28 by 18 5 in 312 by 470 mm 60 to 199 g m 75 g m paper Transparencies Labels Envelopes Same as minimum and maximum paper sizes listed above Thickness 0 0039 in to 0 0045 in 0 099 to 0 114 mm 75 transparencies Thickness 0 005 in to 0 007 in 0 127 mm to 0 178 mm 50 labels 20 to 28 Ib 75 to 105 g m 10 envelopes 1 Th
157. ight If the last digit is currently selected pressing the Select key wraps the cursor around to the first digit Value Increases the value of the currently selected digit by one Pressing Value when 9 is the value of the currently selected digit will change the value of the digit to 0 Value Decreases the value of the currently selected digit by one Pressing Value when 0 is the value of the currently selected digit will change the value of the digit to 9 Table 3 12 shows the sequence of keystrokes used to change the page count from a value of 000000 to a value of 0010480 3 32 Printer Operation EN Table 3 12 Changing the Page Count Key Press Display Menu Item Select Select Value Select Select Value 4 presses Select Value 2 presses Select 2 presses Go EN Description Enter the Advance to the first item in the Advance the cursor one digit to the right Advance the cursor one digit to the right Increase the value of the third digit by one Enter the change to the third digit and advance the cursor one digit to the right Advance the cursor one digit to the right Increase the value of the fifth digit by four Enter the change to the fifth digit and advance the cursor one digit to the right Decrease the value of the sixth digit by two Enter the change to the sixth digit and adva
158. igure 7 11 Paper feeder pick up motor drive signal DC controller PCA Serial line Paper handling PCA F i wa Tray 2 Paper Path 7 82 Troubleshooting eeder sensor PCA Tray paper size signal nea oN T Paper feede pick up roller Feed roller ao SW1601 SW1602 _ 8wi603 L_ swie04 EN DC controller PCA Serial line Paper Handling PCA T 2 S O Feeder sensor PCA 2 BB 2 ave 5 sy ane 5 z itis g E 52 enre D Sie o 2 aa w Ou E uns i S mammen g 5 g 3 TF z 2 5 2 3 a e a o bed a C t 5 h oO a Q 5 2 a S amp 3 g g a E x 4 pa Beg g 3 5 gl Tang a ao 3 2 e s E 2 3 2 eg Paper feeder Fob oop e 7 oO pick up roller Feed roller 2 2 Ta Es _ swa102 W2103 W2104 Separation roller Figure 7 12 500 sheet Paper Feeder EN Reference Diagrams 7 83 2 500 Sheet Paper Feeder Paper Feeder Driver PCA 24V y J2102 1 2 J2001 9 10 t 45V 5 J2101 3 F gt det wet HISPD Speed change signal To printer gt a SCLK Serial clock signal duplexing unit and gt STB Strobe signal paper feeeder gt 721014 RXDOU Transmission data input signal gt TXDOU Transmission data output signal J101AJ21024 TE STERMU Option select signal J2002 1 Paper feeder Paper feeder pick
159. ind the Left Corner Cover See Figure 6 28 on page 6 36 Paper Feed Roller Clutch left side view of printer Item Explanation Tray 1 Shaft Gear Registration Assembly Clutch Paper Feed Roller Clutch Tray 2 Shaft Gear m o oO W Wire Clip Removing Assemblies 6 43 3 Remove the two machine screws in the center of the printer under the Registration Assembly Roller Guide See Figure 6 35 Figure 6 35 Location of two common screws inside printer Item Explanation A Screws 4 Remove the paper tray and tilt the printer back with the front facing up 5 Remove the five self tapping screws that hold the Paper Feed Roller Assembly to the chassis They are located on the bottom of the printer See Figure 6 36 6 44 Removing and Replacing Parts EN Figure 6 36 Paper Feed Roller Assembly bottom view of printer Item Explanation A Screws 6 Remove the Paper Feed Roller Assembly from the chassis while feeding the cable back through the hole in the chassis EN Removing Assemblies 6 45 DC Controller Board and Power Supply This assembly contains two PCAs One houses the DC Controller and the High Voltage Power Supply and the other contains the Low Voltage Power Supply 1 Remove the Top Cover page 6 12 Left and Right Side Covers page 6 23 and the Formatter Assembly page 6 40 2 Disconnect four cables on t
160. ions of Components DC controller PCA T w ana a fe 52 gt 235 7 lt Terminal PCA uw seo a os 2 7 T 2o g AN O 2 5 a a 5 5 5 a 3 vn m gt o Ne g g 3 _ amp a S S S 89 2 Sin 5 Tr i EN 3 kz e 5 nny N DP em Sj 32 PO lt 9 ae 5 m oD S ia aS sol g pas z on gt 9 sash 26 E 2 a5 El oF aS g t i z EJ ast oo 38 gt 28 i Q 6 38 eee 29 EB Trayi 2 5 P2 a pick up roller Photo i 7 sensitive ae a F drum Ps4o2 4 ean q So E5403 P5401 7 w Feed belt PA rl Benn A P5302 SS Separation pad charging Registration i roller roller eek u Feed roller PS301 fo Bs j Z 5N403 O s Tray paper pick up roller WAE E Separation pad gwang i ni ee ON sO ee Figure 7 8 Paper Path EN Reference Diagrams 7 79 z 2 z 2 pj 5 a 2 o oan F A 8 Ae g gt Q g E amame Delivery roller Main motor drive signal CSTFD E T 5 es ee pe ae D EER Sog E agaa Deg ose cot DC controller PCA Terminal PCA t ti drive signal TRDRV Feed roller clutch a Photo sensitive Feed bet Transfer charging roller Figure 7 9 250 sheet Paper Feeder 7 80 Troubleshooting uf Seon pick up solenoid drive signal MPFD Tray 1 Tray 1 pick up roller a
161. is applied to the developing cylinder The remaining toner level is always detected when the developing bias is applied The presence of the cartridge is detected only when the developing bias is applied during the initial rotation DC Controller System The following systems and functions are controlled by the DC Controller PCA e DC Power Distribution 3 4 VDC 5 VDC 24 VA Laser and Scanner Drive Paper Motion Monitoring and Control pbhotosensors and flags Clutches tray pickup and Tray 1 feed Engine Test e Motors Main Drive Scanner and Fans The operation sequences of this printer are controlled by the CPU of this circuit When the printer power switch is turned on and the printer enters the standby mode the CPU outputs the signals to drive the loads such as laser diode motors and solenoids based on the print commands and the image data input from the external device Power Supply System 5 7 DC controller PCA CPU Video i NDO 1 l I I 1 controller i l Video interface t 1 control circuit High voltage control circuit 3 p OES driver BD PCA Scanner motor j Scanner control circuit motor l Motors clutchs Sequence control l solenoids Low voltage power supply AC power fl Figure 5 4 DC Controller PCA Laser and Scanner Drive Based on information received from the Formatter the DC Controller Board sends signals to the Laser Scanner Ass
162. is located 11 to 50 feet 3 35 to 15 24 meters from the computer If you need to locate the printer between 51 and 2000 feet 15 54 and 610 meters from the computer use an RS 422A serial configuration Serial I O settings must be configured correctly for proper serial communication Serial Protocol When printing with a serial configuration the same protocol must be set on both the printer and the computer Protocol on the printer is set by changing the control panel settings Protocol on the computer is set by using DOS commands The default protocol settings are described below BAUD Rate The setting tells the printer how fast information is transferred to and from the computer The default setting is Printer I O Configuration 3 39 Pacing Handshaking Pacing or handshaking is a type of communication between the printer and the computer This is an important setting in the printer because it allows the printer to tell the computer when to send information If the printer is unable to receive information for example when the print buffer is full or when the printer is out of paper a signal is sent to the computer to stop sending information When the printer is able to resume receiving information it sends another signal to the computer to send more data Pacing is set through the control panel s I O Menu Two types of handshaking are supported by the printer e Select amp through the I O Menu s
163. item does not appear OH The 1 lt item appears see below Specify the amount of memory to be used for I O buffering i I O buffering is not performed and the item does not appear When the I O buffer setting is changed any downloaded resources such as fonts or macros will need to be downloaded again unless they are stored on an optional hard disk or flash DIMM EN Table 3 9 I O Menu continued Item Values EN Explanation This item appears only when 1 Specify the amount of memory tor VO buffering The maximum amount of memory available for I O buffering is determined by the amount of memory installed in the printer the languages installed in the printer and by other memory allocations that must be made Press Value to change settings by increments of 10 up to 100 KB or by increments of 100 above 100 KB Select the speed at which data is transmitted to the printer The printer accepts faster parallel communications used for connections with newer computers Hi The printer accepts slower parallel communications used for connections with older computers Turn the bidirectional parallel communication on or off The default is set for a bidirectional parallel port IEEE 1284 This setting allows the printer to send status readback messages to the computer Turning on the parallel advanced functions might slow language switching Select the type
164. item if the computer requires hardware flow control most personal computers do Through the I O Menu s Tk tem the pin polarity can be set to High or Low The default is DTR Select E through the I O Menu s item if the computer requires software flow control for example if you are using a UNIX workstation Note that status readback messages are not paced when i F is selected Through NG I O Menu s 40H item Robust Xon can be set to the default or aFF Note that the 40H item only appa under the I O Menu if 2 is selected 3 40 Printer Operation EN EN Printer Maintenance Overview This chapter discusses the following e Cleaning the Printer and Accessories e Preventative Maintenance Overview 4 1 Cleaning the Printer and Accessories WARNING CAUTION Figure 4 1 To maintain high print quality and performance thoroughly clean the printer and the paper handling accessories e Every time you change the Toner Cartridge run a cleaning page e After printing approximately 15 000 pages Whenever print quality problems occur Clean the outside surfaces with a lightly water dampened cloth Clean the inside parts as indicated in Table 4 1 Observe the warning and caution below Before you begin these steps turn the printer off and unplug all power cords to avoid shock hazard Be careful when cleaning around the Fusing Assembly area It may be hot To avoid perman
165. ja Varo Mik li kirjoittimen suojakotelo avataan olet alttiina n kym tt m lle lasers teilylle laitteen ollessa toiminnassa Al katso s teeseen 1 24 Printer Description EN EN Varning Om laserprinterns skyddshd lje ppnas da apparaten r i funktion uts ttas anv ndaren f r osynlig laserstralning Betrakta ej str len Tiedot laitteessa k ytett v n laserdiodin s teilyominaisuuksista Aallonpituus 775 795 nm Teho 5 mW Luokan 3B laser Material Safety Data Sheet The Toner Cartridge Drum MSDS can be obtained by calling the U S HP FIRST Fax Information Retrieval Support Technology at 1 800 231 9300 Use Index number 7 for a listing of the Toner Cartridge Drum Material Chemical Safety Data Sheets Non U S customers should refer to the support section of the User s Guide for appropriate phone numbers and information Safety Information 1 25 Environmental Product Stewardship Protecting the Environment Hewlett Packard Company is committed to providing quality products in an environmentally sound manner The printer has been designed to minimize impacts on the environment The printer design eliminates Ozone The printer does not use high voltage corona wires in the Production electrophotographic process and therefore generates no appreciable ozone gas O3 Instead this printer uses charging rollers in the toner cartridge and in the print engine Energy This HP LaserJet printer design redu
166. kes most printing decisions based on either temporary settings or permanent defaults Settings sent from software applications override printer defaults Table 3 3 Settings and Defaults Setting or Default Temporary Setting Control Panel Default Factory Default Explanation A value set for the current print job by the software application For example a request from the software to print three copies instead of the Control Panel default value of one copy is a temporary setting The printer continues to use the temporary setting until it receives another software request or until it is reset A value set at the Control Panel when you select a menu item An asterisk appears indicating the default setting The printer retains this default when it is turned off The value set for each menu item at the factory Factory defaults are listed in the item column in the menu tables starting on page 3 6 Setting the Display Language 1 Press and hold Select while turning on the printer Hold Select appears until Release Select i appears briefly Wait for o appear Press Value repeatedly until the desired language appears Press Select to save your choice An asterisk will appear beside the selected language Press Go to exit menu 3 4 Printer Operation EN Control Panel Menus Note EN Press Menu for access to all Control Panel menus When additional trays or other accessorie
167. le to determine approximate equivalent points in weight specifications other than U S bond weight For example to determine the equivalent of 20 Ib U S bond weight paper in U S cover weight locate the bond weight in row 3 second column and scan across the row to the cover weight in the fourth column The equivalent is 28 Ib Shaded areas indicate a standard weight for that grade Table 1 11 Paper Weight Equivalence U S U S U S U S U S U S U S Tag Europe Japan Post Bond Text Cover Bristol Index Weight Metric Metric Card Weight Book Weight Weight Weight Ib Weight Weight thick Ib Weight lb Ib Ib g m2 g m2 ness Ib mm 1 16 41 22 27 33 37 60 60 2 17 43 24 29 35 39 64 64 3 20 50 28 34 42 46 75 75 4 21 54 30 36 44 49 80 80 5 22 56 31 38 46 51 81 81 6 24 60 33 41 50 55 90 90 7 27 68 37 45 55 61 100 100 8 28 70 39 49 58 65 105 105 9 32 80 44 55 67 74 120 120 10 34 86 47 58 71 79 128 128 11 36 90 50 62 75 83 135 135 12 18 39 100 55 67 82 91 148 148 13 19 42 107 58 72 87 97 157 157 14 20 43 110 60 74 90 100 163 163 15 23 47 119 65 80 97 108 176 176 16 53 134 74 90 110 122 199 199 1 U S Post Card measurements are approximate Use for reference only EN Paper Specifications 1 17 CAUTION CAUTION Labels To avoid damaging the printer use only labels recommended for use in laser printer
168. licks indicating the threads are seated Then turn it to the right to tighten Do not over tighten If a self tapping screw hole becomes stripped repair of the screw hole or replacement of the affected assembly is required 6 24 Removing and Replacing Parts EN Figure 6 17 Tray 1 Inner Cover front of printer Item Explanation A Screws Hint An extension of the Paper Sensor Flag fits into a slot in the Tray 1 Lift Plate page 6 56 Orient the flag so that it aligns with both the slot and the indentation in the left side of the chassis EN Removing Covers 6 25 Right and Left Corner Covers These covers are each secured by one self tapping screw Remove the screw and lift off the cover Figure 6 18 Right and Left Corner Covers Item Explanation A Corner Cover Screws 6 26 Removing and Replacing Parts EN Removing Assemblies Internal assemblies are shown in Figure 6 19 All references to the right and left are assumed to be relative to the front of the printer unless otherwise specified Figure 6 19 Internal Assemblies Item Explanation Upper Delivery Assembly Laser Scanner Main Gear Assembly Paper Handling PCA Tray 1 Paper Guide Plate Assembly mnm ol o w Registration Assembly EN Removing Assemblies 6 27 Transfer Roller Assembly CAUTION Never touch the transfer roller with your fingers Use unpowdered latex gloves i
169. lities and Options PCL 19971104 PCLXL 19971104 PS 19971104 DIMM Sloz 1 Erpty DIMM Sloz 2 15 MByte RAM DIMM DIMM Sloz 3 8 MByte 30M CIMM EIO 1 4P JETDIRECT J3T1IA E10 2 Empty Event Log Number of Entries in Use 29 Maximum Number of Ertries 30 Last Three Entries Memory E Tolel Memory 20 MBytes PCL OWS 17 24 1 0 Buffering 100K bytes Allocated of 16390K bytes Available Rescurce Saving CK bytes Allocated of 12300K bytes Available Security i Cortrol Panel Lock NONE Contro Panel Password DISABLED Paper Trays and Options j Mopier OFF Default Paper Size LETTER Tray 2 LETTER 7 46 Troubleshooting Number Error Page Count Tray 3 11X17 20 57 01 00 Q Tray 4 LETTER 19 13 2 50 16 Dup ex Unit 18 55 0000 0 Figure 7 5 Configuration Page EN EN Verify installed options Under Installed Personalities on the Configuration page look for options such as hard disk or DIMM types and sizes Verify that the options which are installed in your printer are reflected in the Configuration Page If an installed device is not shown reseat the device and print a new Configuration Page Troubleshooting the Printing System 7 47 Image Quality When you are working with customers obtain a print sample before you begin troubleshooting their printer Ask the customer to explain the quality they expect from the printer The print sample will also help clarify the cus
170. ller Board may be affecting laser output Replace the Laser Scanner Cable Assembly Table 7 12 Blank Spots Possible Cause Paper does not meet printer specifications or is stored improperly Defective Toner Cartridge Action 1 Print a few more pages to see if the problem corrects itself 2 Turn over the stack of paper in the tray Also try rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Replace the Toner Cartridge Troubleshooting the Printing System 7 55 AGBP Table 7 12 Blank Spots continued Possible Cause Dirty or deformed Transfer Roller Action Replace the Transfer Roller See also Dropouts on page 7 60 Table 7 13 Character Voids AGBP AGBDCS AOB AGBLCS AOB Possible Cause Paper surface too rough Toner migrates to low spots leaving higher areas void Printing on wrong side of paper The label on the ream of paper indicates which side to print on The different surface properties of some papers may cause problems if loaded wrong side up Paper surface too smooth for proper toner adhesion Bad transparencies Transparencies can have this problem because they are not designed for proper toner adhesion 7 56 Troubleshooting Action User paper with correct finish smoothness meeting HP specificatio
171. ls Europe 49 7031 142253 Exchange Program HP offers remanufactured assemblies for some parts These are identified in Chapter 8 and can be ordered through Support Materials Organization SMO or Support Materials Europe SME Consumables Paper and Toner Cartridges can be ordered directly from Hewlett Packard See Chapter 8 for ordering information Technical Assistance HP ASAP Automated Support Access Program provides free technical support information 24 hours a day 7 days a week The ASAP system includes HP AUDIO TIPS and HP FIRST both explained below The ASAP service 1 800 333 1917 U S requires a touchtone phone To order additional printer drivers for software applications call HP s Distribution Center HPD 1 970 339 7009 HP AUDIO TIPS HP AUDIO TIPS is an interactive voice response system providing prerecorded answers to the questions asked most frequently by HP LaserJet printer users Helpful System Maps to the HP AUDIO TIPS recordings are available by fax through HP FIRST Parts and Supplies 2 5 HP FIRST HP FIRST Fax Information Retrieval Support Technology is a phone in fax service that provides technical information for HP LaserJet users as well as service personnel Receiving a fax requires a group 3 facsimile machine or fax card Service related information includes e Service notes HP Authorized dealers Application notes Product Data Sheets Material Safety Data Sheets MSDS
172. lt to a parallel printer port To ensure that information is sent to the serial printer port type the following MS DOS commands at the MS DOS prompt or include them in the AUTOEXEC BAT file MODE COM1 9600 N 8 1 B MODE LPT1 COM1 These examples assume that you are using serial printer COM1 If you are using COM2 or COM3 replace COM1 with the printer port that you are using Since the MODE command is an external MS DOS command a program named MODE COM is run when the MODE command is invoked the program file must be contained either in the root directory or in a directory specified in a preceding PATH command in the AUTOEXEC BAT file After changing the AUTOEXEC BAT file reboot the computer to initiate the changes 3 38 Printer Operation EN Printer I O Configuration EN Parallel Menu The default setting for the H L regis YES If itis set to H the interface runs ata slower speed that is is conta with older computers When the default is set to E the parallel interface runs at a higher rate supported by newer computers Advanced Functions The 45 feature of the printer enables bidirectional agin S between the printer and the host The default setting 4 This default setting amp must be active in order to use HP Laserdet Explorer the Windows Printing System and other software applications and drivers Serial Configuration Use RS 232C serial configuration when the printer
173. m path Troubleshooting the Printing System 7 71 Repetitive Defect Ruler Repetitive print defects usually are associated with a specific roller within the printer or the Toner Cartridge Use Figure 7 1 to isolate the cause of repetitive print defects Align the first occurrence of the defect with the top of the ruler at the top or bottom of the misprinted page and measure to the next occurrence of the defect to determine the roller in question When you are certain that your defect pattern matches the pattern of the ruler replace the indicated roller 7 72 Troubleshooting EN First Occurence of Print Defect Primary Charging Roller 44mm Registration Roller 60mm Developing Cylinder 60mm Feed Roller 63mm Transfer Charging Roller 63mm Fusing Roller 75mm Pressure Roller 79mm Photosensitive Drum 94mm Cassette Pick up Roller 185mm Figure 7 6 Repetitive Defect Ruler EN Troubleshooting the Printing System 7 73 Image System Troubleshooting Half Self Test Functional Check The electrophotographic process can be subdivided into the following stages Cleaning removes excess toner from drum surface Conditioning places a uniform electrical charge on drum Writing laser strikes surface of drum to create latent image Developing forms the toner image on drum Transferring charges transfer the image to paper Fusing heat and pressure produces a permanent image The purpose
174. ments or performing procedures other than those specified in this service manual may result in exposure to hazardous radiation Canadian DOC Regulations Complies with Canadian EMC Class B requirements lt lt Conforme la classe B des normes canadiennes de compatibilit lectromagn tiques lt lt CEM gt gt gt gt 1 22 Printer Description EN Note EN FCC Regulations This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy If this equipment is not installed and used in accordance with the instructions it may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase separation between equipment and receiver e Connect equipment to an outlet on a circuit different from that to which the receiver is located e Consult your dealer or an experienced radio TV technician
175. n Menu in the printer s Control Panel If Eis set on the Control Panel warning messages display on the Control Panel until the end of the job from which they were generated If s set warning messages display on the Control Panel until o is pressed If an error occurs that prevents printing and A7 E 0H is set the printer goes offline for 10 seconds before it returns online If i i is set the message displays until Go is pressed Read Only Memory ROM Besides storing microprocessor control programs the ROM stores dot patterns of internal character sets fonts Random Access Memory RAM The RAM contains the page and I O buffers and the font storage area It stores printing and font information received from the host system and can also serve to temporarily store a full page of print image data before the data is sent to the print engine see Page Protect on page 5 21 RAM memory capacities for each printer are shown in Printer Features on page 1 2 Memory capacity can be increased by adding DIMMs to the Formatter PCA Note that adding memory DIMMs may also increase the print speed of complex graphics Formatter System 5 15 DIMM Slots The DIMM slots may be used to add memory fonts or firmware upgrades Note that DIMMs and SIMMS are not compatible There are two types of DIMMs supported EDO DIMMs are 32 bit 100 pin 6Onsec SDRAM DIMMs are 32 bit 100 pin 66MHz Non Volatile Memory
176. n good toner cartridge Replace the Toner Cartridge if necessary 1 Remove and reseat the Toner Cartridge 2 Check the Laser Scanner shutter door for proper operation If defective replace the Laser Scanner Assembly Make sure the Guide is installed properly above the Toner Cartridge Without Transfer Roller voltage toner cannot be attracted from the surface of the drum to the paper Perform the Half Self Test Functional Check page 7 74 to check all other electrophotographic processes Replace the Transfer Roller if necessary Check the springs for functionality Clean if dirty replace if defective or missing Replace High Voltage Power Supply PCA EN EN Table 7 11 Blank Page continued Possible Cause DC Controller PCA is defective The DC Controller supplies the proper voltage to the High Voltage Power Supply PCA No Developing Bias No drum ground path Defective Laser Scanner Cable Assembly Action Replace the DC Controller PCA 1 Clean the High Voltage Power Supply contacts With no Developing Bias charge toner is not attracted to the drum 2 Replace the Engine Controller Board With no ground path the drum cannot discharge The negative charge on the drum repels toner and leaves a white page with bubble print 1 Check the drum ground 2 Replace the Engine Controller Board Low level signals exchanged between the Laser Scanner Assembly and the Engine Contro
177. n image to be formed on the drum surface and then transferred to paper The drum is an aluminum cylinder The outside of the cylinder is coated with a layer of organic photoconductive material OPC which is non toxic The OPC material has properties similar to a photo resistor It becomes electrically conductive when exposed to light The negative charges deposited on the drum are conducted to the ground potential of the drum base Areas not exposed to light remain non conductive and maintain their negative charge The aluminum base of the photosensitive drum is electrically connected to ground potential Photosensitive Layer Aluminum Base Photosensitive Drum Image Formation System 5 21 Cleaning the Drum In the transfer stage not all the toner is transferred to the paper but some remains on the photosensitive drum In this stage the residual toner is cleaned so that the next print image will be clear and distinct Cleaning blade Cleaner container Sweeper strip Figure 5 9 Cleaning the Drum The residual toner on the drum surface is scraped away with the cleaning blade to clean the drum surface in preparation for the next print The removed toner is collected into the cleaner container 5 22 Functional Information EN Conditioning the Drum After the drum is cleaned it must be conditioned This process consists of applying a uniform negative charge on the surface of the drum with the primary charging roller
178. n page 7 16 or Table 7 6 Numerical Printer Messages on page 7 26 and follow the recommended action 10 Ifthe Control Panel displays IM go to the next section If it indicates any other message repeat this section from step 1 Print the Event Log The printer s internal Event Log stores the last 30 errors and can be printed at any time To print the Event Log e Press Menu until i appears liz appears e Press Select to print the Event Log e Press ltem until F Interpret the Event Log The Event Log is the key tool in troubleshooting printer problems Figure 7 2 shows a typical Event Log The Event Log shows the current page count at the top left of the page with the printer s serial number directly to the right of the page count The left column is the error sequence number with the error listed at the top the highest sequence number is the most recent error logged The next column is the page count at the time of the error and the last column is the Personality PCL or PostScript column or the cause of the jam at the time of the error 7 14 Troubleshooting EN Hint EN The Event Log may record errors ina ailorent format than ne Control Panel Display For example should a 28 i s be displayed on the Control Panel the Event Log will record a 50 02 01 error with the 02 signifying that 2 sensors were blocked Likewise when a 13 1 through 13 9 are displayed on the Control Panel the Event
179. n the DC Controller pan WY Di KLINI Spring Screw Used to fasten the DC Controller Long Machine Screw 6mm 8mm 10mm 12mm M3 M4 KY K e k O O EN Removal and Replacement Strategy 6 9 Removing Covers Rear Door Rear Output Bin 1 Face the rear of the printer Press the two locking tabs toward the center of the printer releasing the Rear Door A Figure 6 3 Rear Door Rear Output Bin Item Explanation A Locking Tabs 6 10 Removing and Replacing Parts EN 2 The plastic support strap is located on the left side of the printer To release the strap pinch the top of the strap with your index finger underneath the strap and your thumb on top of the tab Squeeze and lift up from the bottom while pulling out Figure 6 4 IVALEE EERE Figure 6 4 Support Strap 3 Slide the door to the left and then remove it from the printer Hint For reassembly insert the pin on the left side of the cover first EN Removing Covers 6 11 Top Cover Facing the front of the printer open the Top Cover and remove the Toner Cartridge CAUTION To prevent damage to the toner cartridge do not expose it to light for more than a few minutes Figure 6 5 Toner Cartridge Engagement Arm 1 Release the Toner Cartridge Engagement Arm from the inside of the Top Cover Figure 6 5 The shaft of the Engagement Arm fits through a molded plastic ring on the left side of the Top Cover Gently squeez
180. nce the cursor one digit to the right causing the cursor to wrap around to the first digit To exit Service Mode 3 33 Maintenance Page Count The maintenance page count should be reset only after a maintenance kit has been installed This will reset the maintenance counter so that the message will display another 150 000 pages later default e Hold down the ltem and Value keys e Turn the printer on e Wait for release both keys to be displayed and then iT in the Service Mode Menu sets the page count interval at which the next service is due for the printer This is set initially at the factory to 150 000 pages For example the message displays at 150 000 pages If the Printer Maintenance Kit is installed at 150 114 pages the message displays 150 000 pages later at 300 114 pages Editing this number is similar to editing the item above Serial Number If a Formatter is replaced then the serial number must be reentered Editing this number is similar to editing the item above Cold Reset Paper The default paper size is stored in NVRAM and when the printer is cold reset the default paper size is set to the factory setting Possible values are and When replacing the Formatter in countries that use a rather than letter size paper set the cold reset paper size to 4 Diagnostics This menu item enables or disables th jealllles Possible values are se of the firmw
181. nd or rough paper Follow the instructions on the cleaning page This item appears only after a cleaning page has been generated as described above Press Select to process the cleaning page EN Printing Menu Some items in this menu can be accessed from a software application or from the printer driver if the appropriate driver is installed Printer driver and software application settings override Control Panel settings Table 3 7 Printing Menu Item Lei 110 V printers and 110 V printers EN Values For supported paper sizes see page 1 11 Explanation Set the default number of copies by selecting any number from 1 to 999 Press Value once to change the setting by increments of 1 or hold down Value to scroll by increments of 10 Note It is best to set the number of copies from the printer driver or software application Driver and software settings override Control Panel settings Set the default image size for paper and envelopes The item name will change from paper to envelope as you scroll through the available sizes Note The defaults indicated here are for 110 V printers The default paper size for 220 V printers is 4 The default envelope size for 220 V printers is GL The custom paper menu items are not accessible 2 The custom paper menu items appear see the next item Control Panel Menus 3 13 Table 3 7 Printing Menu c
182. ng and replacing 6 71 maintenance 4 1 maintenance count 3 31 memory checking installation 6 5 printer 5 15 Random Access Memory RAM 5 15 upgrade 6 2 Memory Enhancement technology MEt 5 16 menu map 7 44 model numbers 1 5 motors 5 10 N NVRAM clearing 3 36 O Optional 250 sheet Tray 5 35 Optional 500 sheet Tray 5 35 ordering information 2 3 phone numbers 2 5 overcurrent overvoltage protection 5 5 ozone production 1 26 Index 2 P page count 3 31 page protect 5 16 paper heavy 1 20 motion control 5 9 specifications 1 11 Paper Feed Belt Assembly removing and replacing 6 51 Paper Feed Roller Assembly removing and replacing 6 44 Paper Feed System 5 29 Paper Guide removing and replacing 6 59 Paper Handling menu 3 7 Paper Handling PCA removing and replacing 6 31 paper jam 5 37 duplexer 5 44 paper path cleaning 4 4 troubleshooting 7 41 Paper Path Detect Sensor removing and replacing 6 60 Paper Size Spring Assembly removing and replacing 6 78 paper specifications card stock 1 20 envelopes 1 19 guidelines for using paper 1 15 heavy paper 1 20 labels 1 18 supported types 1 14 transparencies 1 18 vellum 1 18 weight equivalence 1 17 parts 2 3 parts lists alphabetical 8 39 how to use 8 1 8 2 numerical 8 44 photosensitive drum 5 20 Pickup Gear Assembly removing and replacing 6 37 Power Connection removing and replacing 6 63 Power Connector removing and replacing 6 82 power distribution high voltage 5 6 Po
183. ng the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Inside of printer is Clean inside of printer see Chapter 4 Install a new dirty toner may have Toner Cartridge if leaking leaked out of the toner cartridge Printer s operating Make sure the printer s operating environment meets environment does not specifications meet specifications Printing on envelope Move the text to an area without seams If not seams Printing on an printing on seams try a higher print density setting envelope seam can cause a background scatter problem Troubleshooting the Printing System 7 63 Faulty Toner Cartridge Table 7 20 Gray Background continued AaBbCc meee AQBbCc Possible Cause Action AQBbCc EE WwW t densit Fi the Print Quality M the Control Panel rong toner aensity rom tne rrin uality Menu on the Control Fanel AaBbCc setting adjust the toner density setting Make sure EconoMoade is off Replace the Toner Cartridge See also Light Print Dark Print or Fade on page 7 65 Table 7 21 Horizontal Smudges Possible Cause Paper path contamination or damage 7 64 Troubleshooting Action 1 Check the Toner Cartridge and replace it if necessary 2 Check the Fuser and replace it if necessary See the Repetitive Defect Ruler on page 7 72 EN
184. not accessible The TCP IP Menu appears In the TCP IP Menu you can specify or TCP IP parameters to be automatically loaded from a bootp or DHCP server when the printer is turned on If you specify HO you can manually set selected TCP IP parameters from the Control Panel You can manually set each byte of the IP address IP Subnet Mask SM Syslog Server LG and Default Gateway GW Also you can manually set the Timeout time period Note If no IP address is assigned within the first 5 minutes the HP JetDirect print server card will assume a default IP address of 192 0 0 192 i The EtherTalk Menu is not accessible The EtherTalk Menu appears In the EtherTalk Menu you can set the Apple Talk phase parameter or 2 for your network EN Resets Menu Use this menu with caution You can lose buffered page data or printer configuration settings when you select these items Only reset the printer under the following circumstances e You want to restore the printer s default settings Communication between the printer and computer has been interrupted e You are using both the serial and parallel I O ports and one of the ports is having problems The items in the Resets Menu will clear all memory in the printer while Cancel Job clears only the current job Table 3 11 Resets Menu Item Explanation This item clears the printer buffer and the active I O input buffer and makes
185. ns see HP LaserJet Printer Family Paper Specifications Guide Check for the arrow on the paper wrapper Be sure paper is loaded with the arrow pointing down in the paper trays or arrow pointing up in Tray 1 User paper with correct finish smoothness meeting HP specifications see HP LaserJet Printer Family Paper Specifications Guide Use Hewlett Packard approved transparencies see HP LaserJet Printer Family Paper Specifications Guide EN AGBP Table 7 13 Character Voids continued AGBLHC CS AGBP AGBHLCS AGBP AGBP AaBbCc AQBboCc AaBbCc AaBo EN C AQBbCc AQBboCc 7 Possible Cause Action Bad Transfer Roller If Clean the Transfer Roller using a dry lint free cloth the Transfer Roller DO NOT touch the Transfer Roller with your fingers has finger oils on its If the problem persists replace the Transfer Roller surface is dirty or Assembly worn out this problem can result Table 7 14 Creases Possible Cause Action Paper does not meet 1 Print a few more pages to see if the problem printer specifications corrects itself or is stored 2 Turn over the stack of paper in the tray Also try improperly rotating the paper 180 3 Check the paper or other print media type and quality Replace the paper and advise the customer to use the recommended paper and store it properly Printer s operating Make sure the printer s operating environment meets environment
186. ntents 6 Removing and Replacing Parts OVGIVIOW 2 oes na ei ee saee eee nee eee cee be hehe Meng o 6 1 User Installable AccessorieS 0 00 c eee eee 6 2 Removal and Replacement Strategy 0000 6 7 Required Tools 00 cece eee eee 6 7 Removing Covers 0 0c cece eee 6 10 Rear Door Rear Output Bin 0000005 6 10 TOP COVEI ref ssceuede eee eb name hae cleus nd okie be ale 6 12 Control Panel Overlay and Control Panel 6 15 Toner Cartridge Door Assembly 05 6 17 Front Cover and Tray 1 00 0c cee eee eee 6 18 Front Cover PinS 0 000 c cece eee eee 6 20 Face Down Assembly 00 000 cee eee eee 6 21 Left and Right Side Covers 0 0 00 cee eee 6 23 Tray 1 Inner Cover 0c eee eee 6 24 Right and Left Corner Covers 0000000 eee 6 26 Removing AssemblieS 0000 e eee eee eee 6 27 Transfer Roller Assembly 00000220 eae 6 28 FPUSON iets 85 ard e aata a dodo a eee ha be kis ea ee Bee 6 30 Paper Handling PCA 00 0c cee eee 6 31 Main Gear Assembly 00000 cee eee eee eee 6 35 Pickup Gear Assembly 0000 ce eee eaeee 6 37 Tray 1 Pickup Solenoid 00 00 eee eae 6 39 Fall ocitest ae ea a eae nee ee eiaas 6 40 Formatter Assembly 0 00 0c cece eee 6 41 Tray 1 ROl i eciseaae Gap eid eda bee oe oe ee 6 42 Tray 2 Rowers 2ccceceed eevee es
187. of the shaft and remove Removing the Separation Roller A Separation Roller B Return Cover Optional 500 sheet Tray Disassembly 6 81 6 82 Removing and Replacing Parts EN EN Troubleshooting Overview This chapter discusses the following Troubleshooting Process Troubleshooting the Printing System General Troubleshooting Information Reference Diagrams Overview 7 1 Troubleshooting Process The troubleshooting process is a systematic approach that addresses the major problems first then other problems as you identify the causes for printer malfunctions and errors The Troubleshooting Process Flow on page 7 4 illustrates the major steps for troubleshooting the printing system Each heading depicts a major troubleshooting step A YES answer to the questions allows you to proceed to the next major step A NO answer indicates that additional testing is needed Proceed to the referenced location and follow the directions for that area After completing the additional testing proceed to the next major step The following list describes the basic questions for the customer and the corresponding troubleshooting step to help you quickly define the problem s Table 7 1 Major Steps for Troubleshooting Power On page 7 7 Display page 7 11 Event Log page 7 12 General Paper Path Troubleshooting page 7 40 Information Pages page 7 43 7 2 Troubleshooting Does the printer pe
188. oftware Configuration Network Configuration Some sharing devices on networks may generate a blank page as a separator Multiple Feeds The printer may be feeding two or more pages at once because the paper is difficult to separate Sealing tape left in Toner Cartridge Action Make sure the application is not sending incorrect page length requests or extra page eject commands Check with the Network Administrator Remove the paper from the paper cassette and fan the edges of the paper to separate the pages see HP LaserJet Printer Family Paper Specifications Guide Remove the sealing tape Troubleshooting the Printing System 7 53 Table 7 11 Blank Page continued Possible Cause Empty or defective Toner Cartridge Laser Scanner door not opening properly Toner Cartridge Guide damaged improperly positioned or missing No Transfer Roller voltage High voltage connector springs are dirty or defective The high voltage connectors are mounted on the High Voltage Power Supply PCA and protrude into the Toner Cartridge cavity High Voltage Power Supply is defective 7 54 Troubleshooting Action 1 If unsure weigh the cartridge e Full weight 1880 grams 66 3 oz e Empty weight 1450 grams 51 5 oz Note Some toner may reside in the waste toner cavity affecting the weight of the cartridge 2 Perform the Half Self Test Functional Check page 7 74 or try a know
189. ons 1 6 environmental requirements 1 10 printer weight 1 9 space requirements 1 7 solenoids 5 9 space requirements 1 7 specifications electrical 1 6 paper 1 11 supplies 2 3 8 4 switches 5 9 T toner cleaning spilled 4 4 consumption 1 26 toner cartridge 2 8 5 18 5 20 detection 5 7 recycling 2 8 refilled 2 8 Toner Cartridge Door Assembly removing and replacing 6 17 Toner Cartridge Guides removing and replacing 6 72 tools 6 7 Top Cover removing and replacing 6 12 training media 2 4 Transfer Roller Assembly removing and replacing 6 28 transparencies 1 18 Tray 1 5 31 Tray 1 Inner Cover removing and replacing 6 24 Tray 1 Lift Plate removing and replacing 6 57 Tray 1 Pickup Solenoid removing and replacing 6 39 Tray 1 Roller removing and replacing 6 42 Tray 1 Separation Pad removing and replacing 6 58 Tray 1 Shaft removing and replacing 6 53 Tray 1 removing and replacing 6 18 Tray 2 5 33 Tray 2 Roller removing and replacing 6 43 Tray 2 Shaft removing and replacing 6 55 Index 3 Tray Indicator Assembly removing and replacing 6 76 troubleshooting 7 1 configuration page 7 46 display 7 11 engine test 7 9 Event Log 7 12 flowchart 7 4 general paper path 7 41 image quality 7 49 image system 7 75 information pages 7 44 interface 7 77 menu map 7 44 power on 7 7 preliminary operating checks 7 6 printer messages 7 16 printing system 7 6 troubleshooting process 7 2 U Upper Delivery Assembly removing and re
190. ontinued Item Values Explanation This item appears only when 110 V printers or 4 Select the unit of i measurement for the custom 220 V printers paper size This item appears only when 110 V printers or Select the or Ye to 3 dimension to be fed into the 2 220 V printers printer short edge 220 V printers This item appears only when 110 V printers or LEY to H 220 V printers pap Select the other dimension long edge 4r 220 V printers Determine the default orientation of print on the page Note It is best to set the page orientation from the printer driver or software application Driver and software settings override Control Panel settings F L amp to 126 Sets vertical spacing from 5 to 110 V printers 128 lines for default paper or size Press Value once to E4 L change the setting by 220 V printers increments of 1 or hold down Value to scroll by increments of 10 3 14 Printer Operation EN Table 3 7 Printing Menu continued Item EN Values many others Explanation Internal fonts Permanent soft fonts or 3 Fonts stored in one of the three DIMM slots The printer assigns a number to each font and lists them on the PCL Font List The font number appears in the Font column of the printout This item might not appear depending on the
191. ontrol Panel menu items The Configuration Page shows the printer s current configuration If an HP JetDirect print server card is installed HP LaserJet 5000 N 5000 GN printers a JetDirect Configuration Page will print out as well The PCL font list shows all the PCL fonts currently available to the printer The PS font list shows all the PS fonts currently available to the printer This item appears only when a mass storage device such as an optional flash DIMM or hard disk containing a recognized file system is installed in the printer The file directory shows information for all installed mass storage devices The event log lists printer events or errors This item allows you to view the most recent printer events on the Control Panel display Press alue to scroll through the event log entries The paper path test can be used to verify that the paper path is working properly or to troubleshoot problems with a type of paper Choose the input tray output bin duplexer if available and number of copies EN Paper Handling Menu When paper handling settings are correctly configured through the Control Panel you can print by choosing the type and size of paper from the printer driver or software application Some items in this menu such as duplex and manual feed can be accessed from a software application or from the printer driver if the appropriate driver is installed Printer driver and software appli
192. part of configuration in addition to the standard Printer Command Language PCL With standard cabling PJL allows the printer to perform functions such as e Two way communication with the host computer through a Bidirectional Parallel connection The printer can tell the host such things as the Control Panel settings and allows the Control Panel settings to be changed from the host e Dynamic I O switching This allows the printer to be configured with a host on each I O The printer can receive data from more than one I O simultaneously until the I O buffer is full This can occur even when the printer is offline Context sensitive switching This allows the printer to automatically recognize the personalities PostScript or PCL of each job and configure itself to serve that personality e Isolation of print environment settings from one print job to the next For example if a print job is sent to the printer in landscape mode the subsequent print jobs print in landscape only if they are formatted for landscape printing PML PML is a Printer Management Language that allows remote configuration and status readback through the I O Ports Control Panel The Formatter PCA sends and receives printer status and command data via a Control Panel PCA See Using the Control Panel on page 3 2 and Alphabetical Printer Messages on page 7 16 for more information Formatter System 5 17 Image Formation System The ima
193. pecifications Guide e The printer is positioned on a solid level surface e The line voltage does not vary more than 10 from the nominal rated value as specified on the Power Rating Label e The operating environment for the printer and paper is within the temperature and humidity specifications listed in Chapter 1 of this manual The printer is never exposed to ammonia fumes such as those produced by diazo copiers or office cleaning materials The printer is not exposed to direct sunlight e Non HP components such as refilled Toner Cartridges font cartridges and memory boards are removed from the printer Note When moving the printer into a warm room from a cold location such as a warehouse various problems can occur due to condensation in the printer For example if the photosensitive drum is cold the resistance of the photoconductive layer will be high This will lead to incorrect contrast Leave the printer running for 10 to 20 minutes 7 6 Troubleshooting EN Power On It is important to have the printer s Control Panel functional as soon as possible in the troubleshooting process so that the printer s diagnostics can assist in locating printing errors Table 7 2 Power on Defect or Blank Display Problem Is the power cord plugged into the wall and the printer Is AC and DC power available Is the power switch set to on Does the Fan turn on when you turn on the printer EN Action Verify
194. per feeder pick up roller Feed roller E EATE E E E A A E EAE Vices VT a 5 Sw1601 SW1602 ee fs Sw1604 Figure 5 20 250 sheet Paper Feeder EN Paper Feed System 5 35 nal SLON maa t ae a Paper feeder pick up motor drive signal ag Paper feeder paper detection signal CSENS Paper feeder pick up solenoid drive sig Figure 5 21 500 sheet Paper Feeder 5 36 Functional Information Serial line ww pert enamel pawn noes ae N ia Misaia Paper feeder i pick up roller Feed roller N Feed roller 1 Separation rolier DC controller PCA Paper Handling PCA Feeder sensor PCA Feed roller paper detction signal FSENS a Tray paper size signal SW2101 SW2102 SW2103 SW2104 EN EN Paper Jam To detect the presence of paper and whether the paper has been correctly fed the following paper sensors are installed e Registration roller paper sensor PS403 e Top of page sensor PS402 e Fuser paper delivery sensor PS1306 If the paper does not reach or pass through any of the sensors within the specified period of time the microprocessor CPU on the DC Controller PCA notifies the Formatter of a paper jam Paper Feed System 5 37 Duplexer This function is to reverse the one side printed paper from the printer and refeed it into the printer The Duplexer operation sequence is controlled by the duplex driver PCA The duplex driver PCA has t
195. placing 6 66 V variable fusing temperature 5 28 vellum 1 18 WwW warranty statement 2 9 Index 4 EN
196. pring RB2 1825 000CN Table 8 7 on page 8 14 Leaf Spring 500 sheet Feeder RB2 3284 000CN Table 8 22 on page 8 39 Leaf Spring 500 sheet Feeder RB2 3286 000CN Table 8 22 on page 8 39 Left Auxiliary Cover 500 sheet Feeder RB2 3237 000CN Table 8 22 on page 8 39 Left Bushing RB2 1987 000CN Table 8 11 on page 8 22 Left Bushing Lower Delivery Roller RB2 1989 000CN Table 8 7 on page 8 14 Left Corner Cover RB2 1756 000CN Table 8 5 on page 8 10 Left Cover 500 sheet Feeder RB2 3239 000CN Table 8 22 on page 8 39 Left Frame Assembly RG5 4180 000CN Table 8 22 on page 8 39 Left Latch Block RB2 1992 000CN Table 8 5 on page 8 10 Left Latch Plate Left Pickup Roller Bushing Left Pickup Roller Collar RB2 1976 000CN RB1 6149 000CN RB2 1815 000CN Table 8 5 on page 8 10 Table 8 12 on page 8 23 Table 8 12 on page 8 23 Left Roller Cam RB2 1802 000CN Table 8 12 on page 8 23 Left Side Cover Assembly Lower Delivery Roller Lower Delivery Roller RG5 3550 000CN RB2 1985 000CN RB1 6251 000CN Table 8 5 on page 8 10 Table 8 7 on page 8 14 Table 8 9 on page 8 19 EN Illustrations and Parts Lists 8 43 Description Part Number Table Number and Page Lower Delivery Roller Spring RB1 6252 000CN Table 8 9 on page 8 19 Lower Delivery Shaft Gear RS6 0357 000CN Table 8 7 on page 8 14 M3x6 Screw Mach Tru
197. r feeder pick up motor 250 sheet paper feeder PM1701 Reversing motor duplexing unit PM1702 Side registration guide drive motor duplexing unit PM1703 Refeed motor duplexing unit M2001 Paper feeder pick up motor 500 sheet paper feeder Fan motor FM1 Exhaust fan Fusing heater H1301 Fusing heater 1 H1302 Fusing heater 2 EN Reference Diagrams 7 95 Printer Figure 7 23 Connectors 7 96 Troubleshooting EN Duplexing unit J1706 J1705 250 sheet paper feeder aN J1661 Figure 7 24 Connectors Duplexing Unit and 250 sheet Paper Feeder EN Reference Diagrams 7 97 Printer 500 sheet paper feeder OQ Figure 7 25 PCA s 7 98 Troubleshooting EN Figure 7 26 EN Name Duplexing unit PCA Duplexing Unit Function DC controller Power supply Terminal 250 sheet paper feeder driver PCA Feeder sensor PCA 500 sheet paper feeder driver PCA Feeder sensor PCA Duplexing driver PCA Controls print sequence Generates 24 VDC 5 VDC and 3 4 VDC and drives fixing heaters Relays signals between sensors loads and the DC controller PCB Controls loads in the 250 sheet paper feeder and sensors Monitors sensor and switches Controls loads in the 500 sheet paper feeder and sensors Monitors sensor and switch Controls loads in the duplexing unit and sensors Reference Diagrams 7 99 Printer 250 sheet paper feeder 500
198. removed Item Explanation A Location where guide snaps out with two tabs on bottom B This edge has a metal ridge with sharp teeth Use Caution Note To prevent damage to the high voltage contacts the Feed Belt Assembly MUST be reinstalled prior to the installation of the DC Controller EN Removing Assemblies 6 51 Tray 1 Shaft 1 Remove the Top Cover page 6 12 Left and Right Side Covers page 6 23 Pickup Gear Assembly page 6 36 and Paper Handling PCA page 6 31 Raise the green center handle of the Registration Assembly Remove the plastic collar on the right outside the chassis by pulling outward on the collar s release tab and sliding the collar off the shaft 4 Release the collar on the inside right of the chassis by pulling UP on the release tab and sliding the collar to the left See Figure 6 42 Figure 6 42 Tray 1 Shaft right side view of printer Item Explanation A Locking Tab 6 52 Removing and Replacing Parts EN 5 Release the tabs of the gear on the left side of the shaft outside the chassis and slide the gear off 6 Slide the shaft to the right and then angle it out of the chassis Item Explanation A Tray 1 Shaft Gear B Tray 1 Release Tabs Hint Make sure that the Tray 1 Lift Plate with spring is pressed down before installing the Tray 1 Shaft The Shaft captivates the Tray 1 Lift Plate and must be installed on top of
199. res Identification Site Requirements Paper Specifications Safety Information Overview 1 1 Printer Features Table 1 1 Printer Features Speed Resolution Typefaces Memory Options Expansion Slots Interface Optional Networking Mass Storage Options 1 2 Printer Description 17 pages per minute ppm A4 paper or 16 ppm letter paper 100 MHz RISC microprocessor First Page Out 13 sec 300 dpi with PCL5e PostScript Level 2 emulation PS 600 dpi with PCL5e PS HP FastRes 1200 PCL6 only HP ProRes 1200 PCL6 PS 110 Scalable TrueType 80 built in 30 via FontSmart all PS and PCL accessible HP LaserJet 5000 4 MB RAM standard HP LaserJet 5000 N 8 MB RAM standard HP LaserJet 5000 GN 12 MB RAM standard Optional Memory 2 4 8 16 MB EDO DIMMs 32 MB SDRAM DIMM 3 100 pin DIMM slots 2 enhanced I O EIO slots Bidirectional IEEE 1284 compliant parallel interface RS 232 9 pin serial Paper Handling Connector PHC 10Base T and 10Base 2 10 100Base TX Token Ring LocalTalk 2 and 4 MB Flash DIMMs EN Table 1 1 Printer Features continued Paper Trays Paper Path Output Capacity Paper Handling Options EN 100 sheet Tray 1 Size 3 by 5 in 76 by127 mm to 12 28 by 18 5 in 312 by 470 mm Optional 250 sheet Tray 2 supports Size 5 8 by 8 2 in 149 by 210 mm to 11 by 17 in 279 by 432 Optional Universal 500 sheet Tray supports standard and custom sizes from 5 8 by
200. ressing down in the locking tab location slots 2 Remove the right and left auxiliary covers and the front cover Figure 6 62 Optional 500 sheet Tray top view A Locking Tabs B Auxiliary covers Front cover EN Optional 500 sheet Tray Disassembly 6 73 Figure 6 63 500 sheet Tray top view with covers removed A Self tapping screws 3 Remove the nine self tapping screws 6 74 Removing and Replacing Parts EN Figure 6 64 EN Tray Indicator Assembly 1 Remove the left front corner cover screw 2 Remove the cover 3 Remove the Tray Indicator Assembly Removing the Tray Indicator Assembly A Left Corner Cover screw B Tray Indicator Assembly Optional 500 sheet Tray Disassembly 6 75 Left Front Corner Cover Installation 1 Install the Tray Indicator Assembly 2 Depress the indicator to ensure the Tray Indicator Limit Tab is between the upper and lower limit stops Note Ensure that the Tray Indicator operates correctly Figure 6 65 Installing the Left Front Corner Cover A Tray Indicator Limit Tab B Upper Limit Stop Lower Limit Stop 6 76 Removing and Replacing Parts EN Figure 6 66 EN Paper Size Spring Assembly 1 Remove the Paper Size Spring Assembly by disengaging the locking tabs from the left frame assembly 2 Lift straight up to separate the internal component assembly from the frame assembly
201. rform the initialization and power on steps This section gives the procedures for correcting power supply problems Does the Control Panel indicate This section gives the procedures for clearing Control Panel error messages and displaying and correcting Event Log codes Are there recurring problems in the Event Log This section gives information about printing the Event Log and evaluating the error history Is there a paper jam in the printer This section gives information about solving problems in the paper path Will the printer print information pages successfully This section gives the procedures for printing the information pages and evaluating and correcting the printer s configuration EN Table 7 1 Major Steps for Troubleshooting continued Image Quality Does the print quality meet the customer s expectations page 7 48 This section gives Toner Cartridge checks information on EconoMode image defect examples and the repetitive defect ruler Interface Troubleshooting Can the customer print from the host system successfully page 7 76 This section describes how to determine if the printer is communicating properly with the host system EN Troubleshooting Process 7 3 Troubleshooting Process Flow Power On Is the printer on readable message A Perform Power On Checks B After control panel display becomes functional Go to Step 2 7 4 Troubleshooting Display
202. rint or Show Event Log to determine paper jam history See the Display and Event Log Sections of this Chapter and evaluate Event Log Use Paper Path Test to isolate problem See next section for details page 7 42 Use Paper Path Test to isolate problem Try known good media See the HP LaserJet Printer Family Paper Specifications Guide Note that the guide is bundled with the Service Manual Attempt to duplicate Use Paper Path Test to isolate problem Inspect the paper path and all paper path mechanical assemblies located before the leading paper jam EN Table 7 7 General Paper Path Troubleshooting Questions continued Problem Is the customer loading the paper trays correctly Is the customer overfilling the paper trays Are the paper tray guides set correctly Does the printer need cleaning When was the User Maintenance performed on the printer EN Action Observe the customer loading paper Do not fan paper Refer to proper paper handling procedures in the Paper Specification Guide Ensure paper is NOT over the maximum fill marks in the paper trays Observe the customer loading paper in trays Ensure Tray 2 and 3 left side paper guide is set correctly at both the front and rear of the tray and that the front guide is locked into the correct position For Tray 4 ensure all adjustments are set correctly front back and side at the top and bottom of the tray Inspect paper path and paper path
203. roller 1 of the Duplexer 5 40 Functional Information EN i Printer i Duplexing deflector Fuser Pressure roller Switchback rolleri Switchback roller2 PS1701 Feed guide Switchback roller3 Feed roller1 Switchback roller4 ee eral Duplexing unit Figure 5 24 Duplexing Unit EN Paper Feed System 5 41 5 42 Functional Information Uncurling Function This printer has the function to minimize a paper from wrinkle and paper edge crease due to curl The printer sends the command to the duplexing driver PCA by receiving the uncurling command sent from the formatter PCA The duplexing driver PCA executes one of the operations below by the command sent from the printer 1 Skips uncurling operation 2 Executes pause operation 3 Executes dance operation Pause Mode Pause mode reduces paper curl The duplexing driver PCA starts the reversing process and then the fusing delivery sensor PS1306 senses the trailing edge of the paper After a specified period of time the duplexing driver PCA stops and rotates the reversing motor PM1701 counter clockwise CCW At the same time the reversing rollers 1 2 and 3 are rotated in reverse The paper comes out about 30 mm from the duplexing unit along the uncurling guide and pauses for about one second Then the duplexing driver PCA starts to rotate the reversing motor PM1701 clockwise CW so that the reversing rollers 1 2 and 3 are rotated
204. s If you have problems printing labels use Tray 1 and open the rear output bin Never print on the same sheet of labels more than once Label Construction When selecting labels consider the quality of each component e Adhesives The adhesive material should be stable at 392 F 200 C the printer s maximum temperature e Arrangement Only use labels with no exposed backing between them Labels can peel off of sheets that have spaces between the labels causing serious jams e Curl Prior to printing labels must lie flat with no more than 0 5 in 13 mm of curl in any direction Condition Do not use labels with wrinkles bubbles or other indications of separation Transparencies Transparencies used in the printer must be able to withstand 392 F 200 C the printer s maximum temperature For best results close the rear output bin to print transparencies to the top output bin To avoid damaging the printer use only transparencies recommended for use in laser printers If you have problems printing transparencies use Tray 1 Vellum Vellum is special lightweight paper similar to parchment Print vellum from Tray 1 only and open the rear output bin Do not print on both sides of vellum Vellum used in the printer must be able to withstand 392 F 200 C the printers maximum temperature 1 18 Printer Description EN Envelopes Envelope Construction Envelope construction is critical Envelope
205. s e Install away from direct sunlight open flames or ammonia fumes If the printer is placed near a window make sure the window has a curtain or blind to block any direct sunlight e Install with enough space around the printer for proper access and ventilation e Install printer away from the direct flow of exhaust from air ventilation systems Table 1 3 Electrical Specifications Volts Frequency Amps Watts typical 100 127 VAC 10 50 60 Hz 3Hz 11 amps printing 365 standby 40 PowerSave On 27 EPA ENERGY STAR 220 240 VAC 10 50 60 Hz 3Hz 5 amps printing 355 standby 40 PowerSave On 22 EPA ENERGY STAR 1 6 Printer Description EN Space Requirements 55 in 139 8 cm 24 6 in 62 5 cm 11 9 in 30 3 cm wd S Zp Ul Z 8L wd Zp Ul 9 8L iil r 18 5 in 47 0 cm 4 3 in 11 0 cm Figure 1 2 Printer Dimensions HP LaserJet 5000 EN Site Requirements 1 7 55 in 139 8 cm 24 6 in 62 5 cm 11 9 in 30 3 cm 6 1 in 15 5 cm Figure 1 3 Printer Dimensions HP LaserJet 5000 N 5000 GN 1 8 Printer Description wid 0 29 u bbz EN 55 in 139 8 cm 24 6 in 62 5 cm 11 9 in 30 3 oh 18 5 in 47 0 cm 6 5 in 16 6 cm N P 10 6 in 27 0 cm F WD G GZ u Z 6Z Figure 1 4 Printer Dimensions HP LaserJet 5000 with Accessor
206. s EN Left and Right Side Covers The removal procedure is the same for both the left and the right side covers See Figure 6 15 1 Remove the Top Cover page 6 12 2 Locate the tab in the top middle of the cover Release the tab by pushing down on it 3 Grab the side cover at the top by the front edge With your other hand grab the lower edge of the back Rock the cover gently until it comes loose and remove the cover 4 Repeat the steps above for the other side cover Figure 6 15 Side Covers Item Explanation A Tabs Hint For reassembly seat the tabs in the bottom of the Side Cover first Then snap the top of the cover on EN Removing Covers 6 23 Tray 1 Inner Cover 1 Remove the Top Cover page 6 12 Left and Right Side Covers page 6 23 and Front Cover and Tray 1 page 6 18 CAUTION Be sure to locate the Paper Sensor Flag on the left side of the Cover before proceeding to step 3 It rests in an indention in the left side of the chassis and is easily broken See Figure 6 16 2 The Tray 1 Inner Cover is a plastic tray located at the top front of the printer Remove the two self tapping screws A in Figure 6 17 holding the Cover to the front of the chassis Figure 6 16 Tray 1 Inner Cover Flag view from inside printer left side 3 Facing the front of the printer slip the Cover off of the locating pins Hint To install a self tapping screw first turn it to the left until it c
207. s are installed in the printer new menu items automatically appear To change a Control Panel setting 1 Press Menu until the desired menu appears 2 Press ltem until the desired item appears 3 Press Value until the desired setting appears 4 Press Select to save the selection An asterisk appears next to the selection in the display indicating that it is now the default 5 Press Go to exit the menu Settings in the printer driver and software application override Control Panel settings Software application settings override printer driver settings If you cannot access a menu or item it is either not an option for the printer or the customer s network administrator has locked the function The Control Panel reads E See the customer s network administrator To print a Control Panel menu map To see the current settings for all of the menus and items available in the Control Panel print a Control Panel menu map 1 Press Men until appears 2 Press ltem until FF appears 3 Press Select to print the menu map Control Panel Menus 3 5 Information Menu This menu contains printer information pages that give details about the printer and its configuration To print an information page scroll to the desired page and press Select Table 3 4 Information Menu ltem 3 6 Printer Operation Explanation The menu map shows the layout and current settings of the C
208. s still operable e Ensure that the Toner Cartridge has toner Full Toner Cartridge weight 1880 grams 66 3 oz Empty Weight 1450 grams 51 1 oz e Check the expiration date of the Toner Cartridge stamped on the cartridge s box Check the Toner Cartridge to see if it has been disassembled or refilled e Ensure that the Toner Cartridge is seated properly in the printer cavity e Inspect the cartridge for leaking toner through worn seals If the drum has been manually rotated it may have caused internal damage and toner spills may result Toner Cartridges are rated for 10 000 images at 5 coverage It is possible to wear out the gears and the cartridge seals before LO is displayed if the 10 000 image expectancy is exceeded See EconoMode below Check the surface of the photosensitive drum in the cartridge to see if it has been damaged or scratched Touching the drum will contaminate the photosensitive surface and may cause spotting and defects during printing e White areas on the page may indicate that the drum has been exposed to light for too long If white areas appear stop the printer and wait a few minutes This should eliminate most defective images If not the Toner Cartridge may be placed ina dark environment for several days which may restore some life to the drum EconoMode EconoMode creates draft quality printing by reducing the amount of toner on the printed page by up to 50 Advise the
209. seat the cables 4 Replace the Laser Scanner 1 Press Go The page containing the error will automatically be reprinted 2 Turn the printer off and then on 3 Reseat the cables 4 Replace the Laser Scanner Troubleshooting the Printing System 7 33 Table 7 6 Numerical Printer Messages continued Control Panel Message 7 34 Troubleshooting Event Log Message Explanation Recommended Action There is a memory error 1 Turn the printer off and with an accessory The reseat or replace the DIMM that caused the specified DIMM error will not be used 2 Try the DIMM in Values of x and zz are another slot as follows 3 Replace the DIMM that x DIMM type caused the error 0 ROM 1 RAM y Device location O internal memory ROM or RAM 1 to 3 DIMM slots 1 2 or3 zz Error number 0 Unsupported memory 1 Unrecognized memory 2 Unsupported memory size 3 Failed RAM test 4 Exceeded maximum RAM size 5 Exceeded maximum ROM size 6 Invalid DIMM speed 7 DIMM reporting information incorrectly 8 DIMM RAM parity error 9 ROM needs to be mapped to an unsupported address 10 DIMM address conflict 11 PDC XROM out of bounds 12 Unable to make a temporary mapping EN Table 7 6 Numerical Printer Messages continued Control Panel Event Message Log Message EN Explanation An internal communication error occurred A temporary printing error occurred X Description
210. sembly EN Illustrations and Parts Lists 8 29 250 sheet Tray Figure 8 13 EN 8 30 Parts and Diagrams Table 8 16 250 sheet Tray Item No Part No Quantity Description 1 C4116A 1 250 sheet Universal Paper Tray 2 RB2 2037 000CN 1 Tray Cover 3 RB2 2020 000CN 1 Tray Extension 4 RB2 2042 000CN 2 Universal Tray Extension Lock 5 RF5 3585 000CN 1 Separation Pad Spring EN Illustrations and Parts Lists 8 31 Main Drive Assembly Figure 8 14 EN 8 32 Parts and Diagrams Table 8 17 Main Drive Assembly Item No Part No Quantity Description 1 RG5 3543 000CN 1 Main Gear Assembly 2 RB2 1856 000CN 1 Toner Cartridge Engagement Arm 3 RH7 1356 000CN 1 Main Motor 4 XA9 0267 000CN 3 Screw TP M3x6 EN Illustrations and Parts Lists 8 33 Figure 8 15 Pickup Drive Assembly Table 8 18 Pickup Drive Assembly Item No Part No Quantity Description 1 RG5 3544 000CN 1 Pickup Gear Assembly 2 RH7 5193 000CN 1 Pickup Solenoid 3 XA9 0815 000CN 1 Screw TP M3x4 8 34 Parts and Diagrams EN Figure 8 16 PCA Assembly Locations Table 8 19 PCA Assembly Locations 1 Item No Part No RG5 3560 000CN Quantity 1 Description Paper Handling PCA 2 RG5 3517 000CN 1 DC Controller 3 RH3 2195 000CN 1 Power Supply 100 120 V 3 RH3 2196 000CN 1 Power Supply 220 240 V EN Illustra
211. sheet paper feeder Figure 7 27 Clutches and Solenoids 7 100 Troubleshooting EN Figure 7 28 Duplexing unit Clutches and Solenoids Duplexing Unit Name of symbol EN Clutch Solenoid Registration clutch Feed clutch Tray 2 pick up solenoid Tray 1 pick up solenoid Paper feeder pick up solenoid 250 sheet paper feeder Duplexing unit deflector drive solenoid duplexing unit Paper feeder pick up solenoid 500 sheet paper feeder Reference Diagrams 7 101 Printer 250 sheet paper feeder SW1603 _ SW1604 SW1601 SW1602 Figure 7 29 Switches 7 102 Troubleshooting EN Figure 7 30 500 sheet paper feeder Switches 500 sheet Paper Feeder Name of symbol Code EN Switch SW101 SW401 SW402 SW403 Sw404 Sw405 Sw406 Sw1601 Sw1602 SW1603 SW1604 Sw2101 SW2102 SW2103 Sw2i04 Power switch Door switch Test print switch Tray 2 paper size switch 1 Tray 2 paper size switch 2 Tray 2 paper size switch 3 Tray 2 paper size switch 4 Paper feeder paper size switch 0 250 sheet paper feeder Paper feeder paper size switch 1 250 sheet paper feeder Paper feeder paper size switch 2 250 sheet paper feeder Paper feeder paper size switch 3 250 sheet paper feeder Paper feeder paper size switch O 500 sheet paper feeder Paper feeder paper size switch 1 500 sheet paper feeder Paper feeder paper size switch 2 500 sheet paper feeder Paper feeder p
212. ss Head XB1 2300 607CN Table 8 8 on page 8 17 M3x8 Screw Tapping Truss Head XB4 7300 807CN Table 8 23 on page 8 41 Main Gear Assembly RG5 3543 000CN Table 8 17 on page 8 33 Main Motor RH7 1356 000CN Table 8 17 on page 8 33 On Off Switch RB2 1744 000CN Table 8 8 on page 8 17 Pad Assembly RF5 2399 000CN Table 8 9 on page 8 19 Paper Arm RF5 2635 000CN Table 8 23 on page 8 41 Paper Feed Belt RG5 3526 000CN Table 8 12 on page 8 23 Paper Feed Clutch RH7 5192 000CN Table 8 7 on page 8 14 Paper Feed Gear Paper Feed Gear RS6 0351 000CN RS6 0352 000CN Table 8 13 on page 8 25 Table 8 13 on page 8 25 Paper Feed Pulley RB1 6195 000CN Table 8 13 on page 8 25 Paper Feed Roller Assembly Paper Feed Shaft Paper Feed Shaft Paper Guide Paper Guide Paper Handling PCA Paper Pickup Roller Assembly Tray 2 RG5 3522 000CN RB2 1886 000CN RB1 6192 000CN RB2 1970 000CN RB2 1780 000CN RG5 3560 000CN RG5 3521 000CN Table 8 14 on page 8 27 Table 8 13 on page 8 25 Table 8 13 on page 8 25 Table 8 5 on page 8 10 Table 8 8 on page 8 17 Table 8 19 on page 8 35 Table 8 12 on page 8 23 Paper Pick Up Solenoid Paper Sensor Lever Paper Sensor Lever RH7 5195 000CN RB2 1782 000CN RB2 1781 000CN Table 8 7 on page 8 14 Table 8 7 on page 8 14 Table 8 7 on page 8 14 Paper Sensor Lever Spring RB2 1784 000CN Table 8 7 on page 8
213. step 4 above Remove the spring loaded machine screw closest to you on the right side 7 Slide the DC Controller Assembly out of the rear of the chassis 6 48 Removing and Replacing Parts EN 8 The boards are linked by a ribbon cable and held onto the tray with four screws each Carefully remove the ribbon cable that connects them and loosen the screws on the board you wish to remove Figure 6 39 DC Controller Assembly Item Explanation A Power Supply PCA B Ribbon Cable C DC Controller PCA Hint To prevent damage to the high voltage contacts the Paper Feed Belt Assembly needs to be installed before the DC Controller is reinstalled EN Removing Assemblies 6 49 Paper Feed Belt Assembly 1 Remove the Top Cover page 6 12 Left Cover page 6 23 and Main Gear Assembly page 6 34 DC Controller page 6 46 and Transfer Roller Assembly page 6 28 2 Facing the front of the printer remove the machine screws on each side of the Belt Assembly 3 Raise the Registration Assembly by the small green handle and lift out the Belt Assembly 4 Remove the plastic guide A in Figure 6 41 and replace the belts if necessary The guide snaps back in after belt replacement Figure 6 40 Paper Feed Belt Assembly Item Explanation A Paper Feed Belt Assembly Screws 6 50 Removing and Replacing Parts EN i WAN i mni i g S OO Figure 6 41 Paper Feed Belt Assembly
214. th EN EventLog Explanation The optional tray is not connected properly The printer cannot duplex because the rear output bin is open The optional input tray cannot feed paper to the printer because a door or tray is open A print job requested a printer language that does not exist in the printer The job will not print and will be cleared from memory The EIO disk had a critical failure and can no longer be used Recommended Action 1 Re install the optional tray 2 Make sure the optional tray is connected and the connector is not damaged 3 Replace the optional tray Close the rear output bin 1 Check the doors and trays 2 If doors and trays are closed check tabs and sensor levers in the tray for proper operation Replace any defective tabs or sensors 3 Replace the PCA Controller in the feeder 1 Print the job using a driver for a different printer language or add the requested language to the printer if available 2 Press Go to continue Reseat the ElO device or replace it with a new one Troubleshooting the Printing System 7 17 Table 7 5 Alphabetical Printer Messages continued Control Panel EventLog Explanation Recommended Message Message Action The requested operation 1 Check the filename and could not be performed directory name You might have 2 Retry the task attempted an illegal operation such as trying to download a file toa non
215. that the guides fit properly against the paper stack RegistrationAssembly Be sure that the Registration Assembly is installed is improperly installed correctly Table 7 27 Toner Smear Possible Cause Dirt in the printer Dirty Fusing Rollers Toner build up can cause the print ona page to smear Paper might be too smooth Defective Toner Cartridge 7 68 Troubleshooting Action 1 Print a few more pages to see if the problem corrects itself 2 Clean the inside of the printer page 4 2 or use the printer s cleaning page page 4 4 Remove and inspect the Fusing Assembly for excessive toner build up Clean using alcohol Check the paper or other print media type and quality Replace the Toner Cartridge See instructions with the Toner Cartridge EN AQBbCc AaBhEc AaQBkhCc AaQBkCc AaBbCc AQBOCC AQBOCG AQBOGE AQBECE AQBRCE EN Table 7 27 Toner Smear continued Possible Cause Wrong Fuser setting for paper type Fusing Assembly is defective The print will smear if the Fusing Assembly is not heated sufficiently to bond the toner image to the paper The Static Eliminator is dirty or is not grounded allowing a static charge to remain on the page DC Controller is defective The DC Controller regulates fusing roller temperature Action From the Paper Handling Menu on the Control Panel change the Fuser Mode setting or choose another p
216. the Control Panel defaults current The if the Control Panel Resetting memory during a print job can result in data loss message might display on This item performs a simple reset and restores most of the factory default settings This item input buffer for the active I O TLAEE message might display on the printer s Control Panel This item performs a simple reset and clears the input and output buffers for the active I Os only The message might display on the printer s Control Panel This item performs a simple reset and clears the input and output buffers for all I Os EN Control Panel Menus 3 29 Service Mode Service Mode should be used only by authorized service personnel While in Service Mode you can Verify and set the page count and serial number These are displayed on the Configuration Page Set the Cold Reset Default This sets the factory default paper size to either Letter or A4 Turn the Diagnostic Functions on or off for developers only Clear the event log Set the interval at which the F message appears on the control panel To enter Service Mode 1 Hold down Select and Cancel Job while turning on the printer If the control panel reads I iG the keys were released too soon Press the right side of the Menu key then press Select The message is displayed To exit the Service Mode press Go 3 30 Printer Operation EN Figure 3 2
217. the Delivery Roller to remove it EN Removing Assemblies 6 67 Figure 6 57 Right Delivery Roller Tab 5 The Lower Delivery Rollers may fall out When you replace them make sure they align with the indentations in the chassis 6 Individual Rollers located above the Lower Delivery Rollers may be removed by using a flat blade screwdriver to push gently on the top side of the Roller The Roller will be released by the action of the spring Hint When reinstalling the roller re align the Lower Delivery Rollers after you reinstall the Delivery Roller 6 68 Removing and Replacing Parts EN Laser Scanner Assembly 1 Remove the Top Cover page 6 12 and the Face Down Assembly Base page 6 21 2 Facing the back of the printer remove the four black screws holding the assembly to the chassis Disconnect the cables B C and D on each side of the assembly Remove the protective plastic and disconnect the 4 pin connector on the back of the Laser Scanner Assembly 5 Lift the Laser Scanner Assembly out of the chassis we WA Figure 6 58 Laser Scanner Assembly top inside view of printer Item Explanation Screws 3 Pin Connector 8 Pin Connector 4 Pin Connector under protective foam Screws mmo o w Protective Plastic EN Removing Assemblies 6 69 Main Motor 1 Remove the Main Gear Assembly page 6 34 2 Remove the three screws securing the motor to the back of t
218. the fuses F2 on the Power Supply 2 Replace the fuses if necessary Replace the power supply unit The engine test verifies that the print engine is functioning correctly The Formatter PCA is completely bypassed during an engine test This test is very useful for isolating printer problems The engine test prints a full page of lines across the entire printable area and is also useful for checking and adjusting registration The engine test prints from the Cold Reset Paper Tray and can be activated with the Formatter PCA removed Note The Cold Reset Paper Tray must be loaded with paper to perform an engine test Also ensure that the Toner Cartridge is installed in the printer EN Troubleshooting the Printing System 7 9 Note Figure 7 1 Engine Test Button Location The engine test verifies that the print engine is functioning correctly The Formatter PCA is completely bypassed during an engine test This test is very useful for isolating printer problems The engine test prints a full page of lines across the entire printable area and is also useful for checking and adjusting registration Engine test will print from the last input tray used If the last input tray is empty or if the last input source was the duplexer then the Engine Test will print from Tray 2 standard 250 CST If Tray 2 is empty and the last input tray is empty or the last input source was the duplexer then the Engine Test
219. ting from the printer s Control Panel or add more memory to the printer Press G0 to continue The customer might want to add more memory to the printer Press G0 to place the printer online Troubleshooting the Printing System 7 21 Table 7 5 Alphabetical Printer Messages continued Control Panel Message 7 22 Troubleshooting EventLog Explanation To ensure optimum print quality the printer prompts the customer to have routine maintenance performed every 150 000 pages The RAM disk had a critical failure and can no longer be used The requested operation could not be performed You might have attempted an illegal operation such as trying to download a file toa non existent directory The RAM disk is full Recommended Action Install the Printer Maintenance Kit Be sure to reset the Maintenance Page Count when you install the PM Kit See page 3 34 for information on resetting the Maintenance Page Count 1 Turn the printer off and then turn the printer on to clear the message 2 If the message persists install a new RAM disk 1 Check the filename and directory name 2 Retry the task 1 Delete files and then try again or turn the printer off and then turn the printer on to delete all files on the device Delete files using HP JetAdmin HP FontSmart or another software utility See the software help for more information 2 If the message persists incr
220. tions and Parts Lists 8 35 Figure 8 17 Printer Controller Assembly Table 8 20 Printer Controller Assembly Item No Part No Quantity Description 1 RH2 5337 000CN 1 Flat Cable 2 RB2 1790 000CN 1 Sensor Mount Rear of Controller Pan 3 RB2 1791 000CN 1 Sensor Lever 8 36 Parts and Diagrams EN Figure 8 18 Fuser Table 8 21 Fuser Item No Part No Quantity Description 1 RG5 3528 000CN 1 Fuser 100 120 V 1 RG5 3529 000CN 1 Fuser 220 240 V EN Illustrations and Parts Lists 8 37 500 sheet Feeder Figure 8 19 EN 8 38 Parts and Diagrams Table 8 22 500 sheet Feeder Item No Part No Quantity Description 1 RB2 3211 000CN 1 Right Mount 2 RB2 3235 000CN 1 Front Cover 3 RB2 3236 000CN 1 Right Auxiliary Cover 4 RB2 3237 000CN 1 Left Auxiliary Cover 5 RB2 3238 000CN 1 Right Cover 6 RB2 3239 000CN 1 Left Cover 7 RB2 3284 000CN 1 Leaf Spring 8 RB2 3213 000CN 1 Inner Cover 9 RB2 3286 000CN 1 Leaf Spring 10 RG5 4180 000CN 1 Left Frame Assembly 11 XB1 2300 407CN 1 Screw Mach Truss Head M3x4 12 XB4 7401 007CN 10 Screw Tapping Pan Head M4x10 13 XB4 7300 807CN 1 Screw Tapping Truss Head M3X8 RB2 3262 000CN 1 Return Cover Figure 6 70 on page 6 81 RB2 3247 000CN 1 Tray Cover 500 sheet Feeder EN Illustrations and Parts Lists 8 39
221. tomer s explanation Table 7 8 Image Quality Checks Image Quality Checks Action Does the problem repeat on the page Is the Toner Cartridge full and is it manufactured by HP Is the customer using print media that meets all HP paper specification standards Is the print sample similar to those in the Print Quality Tables on page 7 48 Is the problem on the Toner Cartridge drum or the Transfer Roller Use the Repetitive Defect Ruler on page 7 73 Check the Toner Cartridge using the check list on page 7 48 For more information about HP s paper specification standards see Chapter 1 of this manual and the HP LaserJet Family Paper Specification Guide Compare and perform the actions recommended in the Print Quality Tables Perform the Half Self Test Functional Check page 7 74 to determine where the defect is If a dark and distinct toner image is present on the drum s surface assume that the first four functions of the electrophotographic process are functioning cleaning conditioning writing and developing see Chapter 5 and troubleshoot the failure as a transfer or fusing problem Check the Toner Cartridge Image formation defects are often the result of problems with the Toner Cartridge If there is any doubt always replace the Toner Cartridge before troubleshooting image defects 7 48 Troubleshooting EN Note CAUTION EN Use the following list to ensure that the Toner Cartridge i
222. trations and Parts Lists 8 23 6 EK W EN Paper Feed Belt Assembly 8 24 Parts and Diagrams Figure 8 10 Table 8 13 Paper Feed Belt Assembly Item No Part No Quantity Description 1 RG5 3526 000CN 1 Paper Feed Belt Assembly 2 RB2 1888 000CN 2 Small Paper Feed Belts 3 RB2 1887 000CN 1 Large Feed Belt 4 RB2 1886 000CN 1 Paper Feed Shaft 5 RB1 6192 000CN 1 Paper Feed Shaft 6 RB1 6195 000CN 2 Paper Feed Pulley 7 RS6 0351 O000CN 1 Paper Feed Gear 8 RS6 0352 000CN 1 Paper Feed Gear 9 RB2 1904 000CN 1 Transfer Roller Bushing left 10 RS5 2431 000CN 1 Transfer Roller Spring left 11 RB2 1903 000CN 1 Transfer Roller Bushing right 12 RB2 1905 000CN 1 Transfer Roller Bushing Cover right EN Illustrations and Parts Lists 8 25 Figure 8 11 Paper Feed Assembly 8 26 Parts and Diagrams Table 8 14 Paper Feed Assembly Item No Part No Quantity Description 1 RG5 3522 000CN 1 Paper Feed Roller Assembly 2 RB2 1807 000CN 1 Sensor Flag Lever 3 RB2 1808 000CN 1 Sensor Flag Spring 4 RG5 3523 000CN 1 Sensor Cable 5 WG8 5362 000CN 1 Photo Sensor EN Illustrations and Parts Lists 8 27 Figure 8 12 Registration Roller Assembly 8 28 Parts and Diagrams EN Table 8 15 Registration Roller Assembly Item No Part No Quantity Description 1 RG5 3524 000CN 1 Registration Roller As
223. ts 2 Measure the length from the leading edge to the print pattern a in Figure 6 24 Measure all the test prints and calculate the average 3 Adjust VR401 so that the calculated value in step 2 becomes 2 0 mm The pattern image shifts in the direction in Figure 6 25 if VR401 is turned clockwise and in the direction counterclockwise Turning the VR401 one scale shifts the pattern about 0 8 mm For instance if the average value calculated in step 2 is 2 8 mm the difference is 0 8 mm Therefore turn VR401 clockwise for one scale See Figure 6 25 4 Make several test prints again and perform step 2 Check that the top margin is 2 0 mm If the value is incorrect repeat steps 1 through 4 Leading edge of paper t Figure 6 24 Adjusting the Top Margin 6 32 Removing and Replacing Parts EN cew o VR401 CW Figure 6 25 Location of VR401 EN Removing Assemblies 6 33 Main Gear Assembly 1 Remove the Top Cover page 6 12 and the Left Cover page 6 23 2 The Main Motor is located on a PCA see Figure 6 26 on the back side of the Gear Assembly Disconnect the Main Motor Cable 3 Remove five self tapping screws and the grounding screw spring loaded machine screw that hold the Gear Assembly to the chassis oco Figure 6 26 Main Gear Assembly Left Side Item Explanation A Main Motor Cables B Self tapping Screws C Grounding Screw 6 34 Removing and Repla
224. ts keyed pins The Tray will slide off the pins to the right at its lowest position 6 18 Removing and Replacing Parts EN Figure 6 11 Tray 1 4 Release the Tray 1 Guide by allowing the guide to slide off the keyed pins at its lowest position Figure 6 11 EN Removing Covers 6 19 Front Cover Pins 1 Remove the Front Cover and Tray 1 page 6 18 2 Remove the screws A to free the Front Cover Pins Figure 6 12 Front Cover Pins Item Explanation A Screws Hint To install a self tapping screw first turn it to the left until it clicks indicating the threads are seated Then turn it to the right to tighten Do not over tighten If a self tapping screw hole becomes stripped repair of the screw hole or replacement of the affected assembly is required 6 20 Removing and Replacing Parts EN Face Down Assembly 1 Remove the Top Cover page 6 12 Face the back of the printer Squeeze the locking tabs inward one side at a time to release the Face Down Assembly See Figure 6 13 4 Lift slightly and then remove the Assembly with a rolling motion away from you Be careful not to break the two locator pins on the front of the Assembly Figure 6 13 Location of Face Down Assembly Base Item Explanation A Scanner B Locking Tabs EN Removing Covers 6 21 Figure 6 14 Face Down Assembly Item Explanation Locator Pins 6 22 Removing and Replacing Part
225. umber YYYYYYYYYY Number Error Page Ccunt Description or Personality 19 13 2 50 16 PAPER FEED 1 PAPER STOPPED JAM 18 55 0000 0 ig 55 0A40 D 16 55 0000 0 15 13 20 30 1225 PRINTER COULD NOT AUTOMATICALLY EJECT PA 14 13 20 30 1223 PRINTER COULD NOT AUTOMATICALLY EJECT PA 13 13 10 18 1017 DUPLEX TURN AROUND PAPER LATE JAM 12 41 03 00 1017 PCLXL il 13 1 50 862 PAPER FEED 1 PAPER LATE JAM 20 13 1 50 753 PAPER FEED 1 PAPER LATE JAM 9 13 10 18 751 DUPLEX TURN AROUND PAPER LATE JAM 8 13 1 50 750 PAPER FEED 1 PAPER LATE JAM 7 13 20 30 457 PRINTER COULD NOT AUTOMATICALLY EJECT PA 6 13 20 10 457 PRINTER COULD NOT AUTOMATICALLY EJECT PA 5 13 20 14 457 PRINTER COULD NOT AUTOMATICALLY EJECT PA 4 13 2 70 457 PAPER FEED 1 PAPER STOPPED JAM 3 55 0000 0 2 55 0A40 D 1 55 0000 V Figure 7 2 Event Log Page EN Troubleshooting the Printing System 7 13 Display the Event Log If the printer cannot print or move any paper follow these steps to display the Event Log 1 Press Menu until Press ltem until amp Press Select to show the Event Log Press to scroll through the Event Log Write down the error messages oOo a A WO N Check the Event Log for specific error trends in the last 10 000 printed pages 7 Ask the customer for any observed error trends For example do paper jams tend to occur in a specific area of the printer Record any specific error trends See Table 7 5 Alphabetical Printer Messages o
226. ure rises and the output voltage of the thermistor exceeds about 0 5 V 230 C pin 7 of the comparator IC304 goes L 1C304 pin 1 goes L Q4 turns off then the relay RL1 turns off The printer has the following three protection functions to prevent wrong activation of the fusing roller heater e The CPU monitors the thermistor TH1301 voltage If it is abnormal the CPU identifies the fusing roller heater error turns the relay RL1 off and reports it to the Formatter e Ifthe fusing roller heater temperature rises excessively and the TH1301 voltage falls below about 0 6 V 220 C the safety circuit in the fusing roller heater interrupts the power to the fusing heather regardless of the CPU output e Ifthe fusing roller heater temperature rises abnormally and the thermal fuse temperature exceeds 240 C the thermal switch turns off and interrupts the power to the fusing roller heater Power Supply System 5 5 High Voltage Power Distribution OCPWM PRDCFOT PRACFOT Comparator Primary bias circuit i Primary DC bias i Comparator Bi voltage detection circuit A DC voltage generation circuit i AC voltage H a se i PRACON Primary AC bias current detection circuit Superimposed H PRiJH404 re Primary charging rotler Photosensitive drum H T t Developing PRNT ea a ae i cylinder h __ Developing bias circu f De
227. veloping DC bias f Q lt Fh Static TOP i charge sensor DC voltage _ eliminator C Q gt lt generation circuit H i Transter i DvivHaoe Sapna Superimposed Ch i eo DVACEOT AC voltage H i generation circuit TNACHKD 5 TNACHKT ANT JH406 f ransfer voltage circuit j TRPWM Comparator Positive current TRPFOT i superimposed TR i T403 Positive voltage i aH i Static charge eliminator bias circu Negative current i aega Seon Negative voltage i T404 i Serr 45V VREF Figure 5 3 Reference voltage generate circuit High Voltage Power Supply Circuit In response to the instructions from the microprocessor CPU IC301 on the DC controller this circuit applies the superimposed voltage of DC voltage and AC voltage to the primary charging roller and developing cylinder and a positive or negative DC voltage to the transfer charging roller According to the image density information sent from the Formatter PCA this circuit varies the primary DC bias and developing DC bias to adjust the image density 5 6 Functional Information EN Toner Cartridge Detection The Toner Cartridge has a toner sensor The circuit compares the output value of the developing AC bias and the output value ANT from the antenna inside the cartridge and outputs the toner detection signal The CPU detects the remaining toner level and the presence of the cartridge when the developing bias
228. w 8 1 How To Use the Parts Lists and Diagrams The figures in this chapter illustrate the major subassemblies in the printer and their component parts A table accompanies each exploded view diagram Each table lists the item number for the replaceable part the associated part number for the item the quantity and a description of the part While looking for an electrical part number pay careful attention to the voltage listed in the description column to ensure that the part number selected is for the correct model of the printer Ordering Parts Note Parts that have no item number or part number listed are not field replacement parts and cannot be ordered through SMO All standard part numbers listed are stocked and may be ordered from HP s Support Materials Organization SMO or Support Materials Europe SME Hewlett Packard Co Support Materials Organization 8050 Foothills Blvd Roseville CA 95678 Parts Direct Ordering 1 800 227 8164 U S Only Hewlett Packard Co Support Materials Europe Wolf Hirth Strasse 33 D 7030 Boblingen Germany 49 7031 14 2253 Ordering Consumables Consumables and accessories such as those listed on Table may be ordered from Hewlett Packard The phone numbers are U S 1 800 538 8787 Canada 1 800 387 3154 Toronto 516 671 8383 United Kingdom 0734 441212 Germany 0130 3322 8 2 Parts and Diagrams EN Note EN Contact your local HP Parts Coordinator for other loc
229. wer Inlet Assembly removing and replacing 6 73 power on troubleshooting 7 7 power supply system 5 3 AC DC distribution 5 3 Power Supply removing and replacing 6 47 PowerSave mode 1 26 preventative maintenance 4 5 EN Print Quality menu 3 10 printer features 1 2 messages 7 16 model numbers 1 5 serial numbers 1 5 subsystems 5 2 testing 3 35 weight 1 9 printing engine test 3 35 interface 7 77 operating checks 7 6 Optional 250 sheet Tray 5 35 Optional 500 sheet Tray 5 35 Tray 1 5 31 Tray 2 5 33 Printing menu 3 13 Product Stewardship power consumption 1 26 R Random Access Memory RAM 5 15 Rear Door Rear Output Bin removing and replacing 6 10 recycling toner cartridges 2 8 refeed system 5 38 Registration Assembly removing and replacing 6 64 regulatory information 1 22 1 24 removal replacement strategy 6 7 removing and replacing 6 10 reset maintenance count 3 31 page count 3 31 serial number 3 31 Resets menu 3 29 resetting printer 3 36 clearing NVRAM 3 36 cold reset 3 36 Resolution Enhancement technology REt 5 13 reversing system 5 38 Right Corner Cover removing and replacing 6 26 EN S safety statements 1 22 1 24 scanner drive 5 8 sensors 5 9 5 30 7 88 Separation Roller removing and replacing 6 83 sequence of operation 5 45 serial number 3 31 serial numbers 1 5 service mode 3 30 maintenance count 3 31 page count 3 31 serial number 3 31 signals 7 88 site requirements 1 6 electrical specificati
230. will be slower when F 3 22 Printer Operation EN Table 3 8 Configuration Menu continued Item EN Values Explanation This item appears only after the displays The message will be cleared and will not be displayed again until the next maintenance is due The message should not be turned off unless the printer maintenance has been performed If the required maintenance is not performed the printer s performance will degrade Select when alternately printing envelopes or small paper and standard paper sizes Be sure to return the speed to when finished Control Panel Menus 3 23 1 0 Menu Items in the I O input output Menu affect the communication between the printer and the computer Table 3 9 I O Menu Item Values 3 24 Printer Operation Explanation Select the I O timeout period in seconds I O timeout refers to the time measured in seconds that the printer waits before ending a print job This setting allows you to adjust timeout for best performance If data from other ports appear in the middle of your print job increase the timeout value Press Value once to change settings by increments of 1 or hold down Value to scroll by increments of 10 Allocate memory for I O buffering HLITG The printer automatically reserves memory for I O buffering Additional confi urations are not required and the 3 menu
231. will not function Location of the Engine Test Button Printing an Engine Test To print an engine test use a non metallic object such as a pencil to press the engine test button A single test page with horizontal lines will be printed To print multiple test pages hold down the engine test button 7 10 Troubleshooting EN EN Display The Control Panel should display F For information about errors displayed access the Event Log If the display is blank see Preliminary Operating Checks on page 7 6 Troubleshooting the Printing System 7 11 Note Event Log Use the Event Log to diagnose and troubleshoot printer errors and intermittent failures You can either display or print the Event Log Access the Event ah rom the Control Panel s Information Menu Select F E 16 The Event Log retains the printer s last 30 error ime AIE See the tables starting on page 7 16 for more information about correcting Event Log messages on the printer The Event Log codes and the error on the Control Panel do not always correspond exactly The numbers in the Control Panel message may not be the same in the Event Log the decimal numbers may be shifted by one digit For example i 1 on the control panel reads 13 01 in the Event Log Refer to the correct number in the tables starting on page 7 16 7 12 Troubleshooting EN HP LaserJet 5000 series printers O Be Event Log Page Current Page Count 39 Ser al N
232. y With FCC Standards FOR HOME OR OFFICE USE This prod ist conlarms with CDRH radiation performance standard 21 CFR el chapter 1 sub shapler J Complies with Canadian EMC Class B require Made in 00000000 MANUFACTURED November 17 1997 Model No C4110A o NANN RO POWER RATING 110 127V AC 50 60Hz 5 4A le gt lt ma PACKARD Figure 1 1 Sample Labels EN Teated To Comply With FCC Standards FOR HOME OR OFFICE USE This product conforms with CDRH radiation performance gandang 2 CFR chapter 1 sub shapter Complies with Canadian ma Class B requirements Made in 0000X MANUFACTURED November 17 1997 Model No C4110A Serial No XXXX000048 POWER RATING 220 240V AC 50 60Hz 2 58 gS CE oe a c k imac BLVD 10 89714 USA 5 EWLETT MEOS GAB pacano Identification 1 5 Site Requirements The following environmental specifications must be maintained to ensure the proper operation of the printer Consider the following points before installing the printer e Install in a well ventilated dust free area e Install on a hard flat and continuous surface with all four printer feet level Do not install on carpet or other soft surfaces e Ensure adequate power is supplied Printer power requirements are listed in Table 1 3 e Install where temperature and humidity is stable away from water sources humidifiers air conditioners refrigerators or other major appliance
233. y be reprinted If the error persists 1 Reseat the connections to the Laser Scanner and the Engine Controller Board 2 Replace the Laser Scanner 3 Replace the Engine Controller Board Troubleshooting the Printing System 7 31 Table 7 6 Numerical Printer Messages continued Control Panel Event Explanation Message Log Message A Fuser error has occurred X Description 1 Low Fuser temperature 2 Fuser warm up service 3 High Fuser temperature 4 Faulty Fuser 5 Inconsistent Fuser Recommended Action 1 Turn the printer off for a minimum of 20 minutes to clear the error 2 Reseat the Fuser 3 Turn the power off and remove the Fuser Check continuity between connectors J1307 1 and J1307 2 If there is no continuity replace the Fuser 4 Check continuity between connectors J1308 3 and J1308 1 with the Fuser removed If there is no continuity replace the Fuser Figure 7 3 Fuser Connectors 7 32 Troubleshooting EN Table 7 6 Numerical Printer Messages continued Control Panel Message EN Event Log Message Explanation A loss of beam detect occurred X Description 1 Beam detect error 2 Laser error The Laser Scanner speed is incorrect X Description 1 Scanner start up error 2 Scanner rotation error Recommended Action 1 Press Go The page containing the error will automatically be reprinted 2 Turn the printer off and then on 3 Re

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