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HP LaserJet 4V / 4MV (C3141A / C3142A)

1. 4 3 24 Clutches and Sensors o o e 5 26 Status Messages 4 7 6 Status Messages continued 7 7 Status Messages continued 7 8 Status Messages continued 7 9 Status Messages continued 7 10 Service and Error Messages o 7 11 Service and Error Messages continued 7 12 Service and Error Messages continued 7 13 Service and Error Messages continued 7 14 Clearable Warning Messages 7 15 Blank White Page o 7 21 Black P ge omo a See ee eee Pee a 7 22 Faded Print 0 ee 7 23 White Stripes parallel to path 7 24 Black Lines perpendicular to path 7 24 Black Lines parallel to path 7 25 RepetitiveDefedtis 2 2 02 00022 7 25 BubblePrinE acc eee o Romy REO Roe a as 7 26 Dropout amp 4c hae ko m Beh ka RR eo ee x RR 7 26 CharaderVoids 22s 7 27 Background Scatter or LeadingEdgeHalo 7 28 Partial Blank Page lll lll 7 28 vi Table 7 16 Table 7 17 Table 7 18 Table 7 19 Table 7 20 Table 7 21 Table 8 1 Table 8 1 Table 8 A Table 8 A Table 8 B Table 8 2 Table 8 3 Table 8 4 Table 8 5 Table 8 6 Table 8 7 Table 8 8 Table 8 9 Table 8 10 Table 8 11 Table 8 12 Table B 1 Faulty Registration
2. Power Supply Unit 6 18 Removal and Replacement DC Controller PCA The DC Controller PCA is located directly beneath the Card Cage assembly 1 Removethe Card Cage assembly see Figure 6 10 CAUTION 4 connectors are hardwired tothe DC Controller and must be unplugged at the other end of the wires 2 Unplug 2 connectors from the top edge of the High Voltage Power Supply PCA Figure 6 13 callout 1 3 Unplug 1 connector from the top of the main motor and release the cable from the 3 clips Figure 6 13 callout 2 4 Unplug 1 connector from the side of the Laser Scanner PCA and release it from its clip Figure 6 13 callout 3 5 Unplug 9 connectors from the PCA Figure 6 13 callout 4 6 The DC Controller is now free Slide it toward the back of the printer and lift out Figure 6 13 DC Controller PCA Removal and Replacement 6 19 9 juauls9e day 2A0UuI9y Laser Scanner Assembly The Laser Scanner assembly is located under the DC Controller PCA 1 Removethe following components e Card Cage assembly Figure 6 10 e Rear Exhaust Fan FM2 Figure 6 11 e Power Supply Unit Figure 6 12 e DC Controller PCA Figure 6 13 2 Remove 4 long machine screws Figure 6 14 3 Lift up slightly to disengage from alignment pins and carefully slide the Laser Scanner assembly out the side of the printer chassis Figure 6 14 Laser Scanner Assembly To Reinstall Make sure that a
3. Shipping Print Media Product Overview llle External Assembly Locations 1lof2 External Assembly Locations 2 of 2 Front Door Assemblies Internal Assembly Locations 1 0f 2 Internal Assembly Locations 2 of 2 Service Approach Ordering Parts Phone numbers for the various sources are Exchange Program Consumables Toner Cartridge Life Refilled Toner Cartridges Recyding Toner Cartridges Related Documentation and Training Media Product Information 1 1 Technical Assistance 1 20 HPAUDIO TIPS esa oe ee mmm OX Ra 1 20 HPIFLRAST commit At P Sae Ehe 1 20 HP FIRST U Si eee he Eom m HS ee x 9 VOX o Reg 1 20 HP FIRST EUROPE 2 5 1 4 LP Re RS tede n 1 20 HP CompuServe ForuM lee 1 21 North American Response Center NARC 1 21 Other Areas 299 e a Xo e Rm o OE 1 21 Warranty Statement 1 2 0 0 1 22 Warranty 2 fn he ie el ae ind ee eae es E a a Ra 1 22 One Y ear Return to HP Authorized Repair Station 1 22 Exdusions 2 2 s Soke e E Kee eg 1 22 1 2 Product Information Printer Features Table 1 1 Printer Features LaserJet 4V LaserJet 4MV C3141A C3142A Print Speed 16 ppm letter or A4 16 ppm letter or A4 8 ppm ledger 11x17 or A3 8 ppm ledger 11x17 or A3 Text amp Graphics Resolution 600 dpi plus Resolution 600 dpi plus Resolution Enhanc
4. o 7 29 Smeared Prints ce ae aee ROS Re wem dik 7 30 Compressed Print o o ae 7 30 Image SKEW ies pca a eee AA Ae a ee Ee 7 30 High Voltage System Checks 7 34 Causes of Paper Curl o o o 7 35 Accessories and Supplies o o 8 5 Accessories and Supplies continued 8 6 Common Fasteners Used in the Printer 8 7 Common Fasteners Used in the Printer continued 8 8 Replaceable Cables o a 8 8 CoversandDoors a 8 11 Foot Assemblies o a 8 13 Front Door Components 10f2 8 15 Front Door Components 2 of 2 8 17 Output Components lll 8 19 Internal Components 10f4 8 21 Internal Components 20f4 8 23 Internal Components 30f 4 8 25 Internal Components Aof 4 8 27 Card Cage Assembly o o o 0000004 8 29 Optional Lower Cassette Assembly 8 30 Novell NetWare F rame Types B 6 Product Information Chapter Contents Printer Features Paper Capacities andSizes Identification lll Model and Serial Numbers Specifications eee eee Media Selection Guidelines Paper owed a ae eS Envelopes Adhesive Labas Transparendes Storing Print Media
5. Serial Number and Formatter Number Shows version number of internal code 4 RAM size Shows total installed printer memory 11 Page Count Shows the number of pages the printer has printed Firmware Datecode Eight digit date YY YY M MDD and version number of formatter firmware Control Panel options status Shows status of control panel Lock and Password functions Other installed options Lists optional paper cassettes personalities and other installed options Disk Accessory Appears when the option is installed and displays access status I O Buffering and Resource Saving Information about the current configuration appears here If the printer does not have enough memory installed to enable I O Buffering or Resource Saving the amount of additional memory needed appears here Print Pattern Illustrates print density and quality Resolution Enhancement When print resolution is set to 600 dpi the REt block appears here The REt block illustrates current print resolution enhancement PCL Memory Information Shows the total amount of installed memory and also indicates the amount available for PCL applications such as font downloading software 3 20 Operating Overview Figure 3 3 PRINTING MENU COPIES 1 PAPER LETTER ORIENTATION P Portrait FORM 60 LINES MANUAL FEED OFF RET MEDIUM ECONOMODE OFF PCL MENU FONT SOURCE 1 FONT NUMBER 0 PITCH 10 00 SYM SET ROMAN 8 SERVICE MENU PAGES S N C
6. The printer received a request for a paper or envelope size not available in the printer 7 10 Troubleshooting Printer operation may continue provided access to the disk is not required The printer will substitute fonts if necessary Press to continue printing when this error occurs Switch the printer OFF and then back ON If the error continues 1 Remove and reseat the disk drive ensuring that the connector pins are fully seated in the connector on the Formatter PCA 2 Run a control panel self test to verify presence of the disk drive look for the text Installed options Disk 3 If the error persists replace the disk drive See the network or printer administrator Insert the appropriate envelope size into the MP Tray and press ort if MP Tray is not in first mode to print from the envelope feeder Insert the appropriate paper size into the MP Tray and press Or press 000 if the MP Tray is not in first mode MP LOAD Load MP Tray with the requested media If the size is not selected in the printer control panel use the key to enter the requested size or press to draw the requested size from another source if available Note If MP LOAD remains in the display you may have to clear the buffer by resetting the printer Press EXT GEES PC or LC LOAD Load the Paper Cassette or Lower Cassette with the requested media Also the back paper guide in the cass
7. D iming SH3dQJ tubrs 9s 19 uopoq pue eseJe do abeu puosag zur Figure 5 15 1NIyd souenbeg NO YMS j9 og General T 5 29 Functional Overview 5 30 Functional Overview Removal and Replacement Chapter Contents Removal and Replacement Strategy o 6 3 Required Tools o o e ee 6 4 User Installable Accessories o 6 5 CoversandDoors lll 6 8 Control Panel uu doceo ad ge BE eo E Rn 6 8 UpperCover iwe cc o cz EG GG 3x3 6 9 Static Charge Eliminator sn 6 10 Side COVES 6 11 Rear COVER 2 iix do d EROS uo d PUR A IE dE P N 6 12 Left Side Assemblies lll 6 13 Exhaust Fan FM1 6 13 High Voltage Power Supply PCA aaau a 6 14 Cassette Size Sensor Assembly ooa a 6 15 Rear and Top Area Assemblies o oo oa a 6 16 Card Cage c eg da eg X a a Dee o 6 16 Rear Exhaust Fan FM2 c e 6 17 Power Supply Unit o e 6 18 DC ControllerPCA lle 6 19 Laser Scanner Assembly o e 6 20 Right Side Assemblies lll 6 21 Main Motor M1 6 21 Main Drive Assembly o e llle 6 22 Drum Drive Assembly lll 6 24 Front Door Assemblies o a a 6 25 Transfer Roller Assembly aoaaa e 6 2
8. The items available in the ob Menu can also be changed through software applications if an appropriate printer driver is installed Table 3 7 Job Menu Items hm pem Explanation RESOLUTION 300 or 600 For most purposes 600 dpi is recommended PERSONALTY AUTO Personality means printer language The printer can switch PCL from its standard personality PCL to other personalities PS such as PostScript When is set to i the printer analyzes each print job it receives and switches personalities automatically When you make another personality the default the printer stops switching personalities automatically unless a software command specifically instructs it to do so If the PostScript option is not installed y will not display in the Job Menu If you select PS as the default you may want to set r in the Parallel Menu to FF PWRSAVE OFF 15 MIN Sets the amount of time the printer is idle before the fuser 30 MIN 1 HR shuts down The printer automatically starts warming the 2HRS 3HHS _ fuser when you send a print job to the printer press a control panel key load or remove paper or open the top door NOTE A ten second interval is also available in Service Mode see Service Mode later in this chapter IO TIMEOUT 5 to 300 I O timeout refers to the time measured in seconds that the 15 printer waits before ending an incomplete print job it scrolls in increments of 10 This setting allows you to adjus
9. pg HEWLETT HEWLETT p PACKARD ca PACKARD A High Performance Adobe PostScript T 35 PostScript Typefaces Pus 45 Enhanced POL Typefaces e Wide Paper Format 22 Network Ready X Power Save aw Power Save ON BLACK LINES perpendicular to path BLACK LINES parallel to path see Table 7 8 page 7 24 see Table 7 9 page 7 25 ye wT Pes e PACKARD 4 SANT A High Performance ed 600 dpi Seir cotone VM PostScript Level2 35 PostScript Typefaces e Wide Paper Format ZA Network Ready wh Power Save REPETITIVE DEFECTS BUBBLE PRINT see Table 7 10 page 7 25 see Table 7 11 page 7 26 7 18 Troubleshooting T Troubleshooting X C apap X ac ap ap X ap ap ac lt tTatatatatatatatata CX aC ap ap ap ap ac a a X a CX a C ap X a ap ap ac a a a pP RPM C SIDIS oet POL Type t d Wide Paper Format BLL 2 vork Ready pae Y 7 x WAVE 2 gh Performance cA PostScript vel 2 8 ovu dpi Seu oer J Adobe PostScript 2 PastScript Power Save CHARACTER VOIDS DROPOUT see Table 7 12 page 7 26 27 page 7 see Table 7 13 HEWLETT PACKARD ca SANT PostScript Typefaces Tus 45 Pest PCLS pe Wide Paper Format b High Performance PostScript Level 2 Network Ready Power Save CC a a ap ep ep a ac ac ar
10. B 4 VCCI Statement Japan o C 4 List of Tables Table 1 1 Table 1 2 Table 1 3 Table 1 4 Table 1 5 Table 1 6 Table 2 1 Table 3 1 Table 3 2 Table 3 3 Table 3 4 Table 3 5 Table 3 6 Table 3 7 Table 3 8 Table 3 9 Table 3 10 Table 3 11 Table 3 12 Table 3 13 Table 5 1 Table 7 1 Table 7 1 Table 7 1 Table 7 1 Table 7 1 Table 7 2 Table 7 2 Table 7 2 Table 7 2 Table 7 2 Table 7 4 Table 7 5 Table 7 6 Table 7 7 Table 7 8 Table 7 9 Table 7 10 Table 7 11 Table 7 12 Table 7 13 Table 7 14 Table 7 15 Printer Features o ee 1 3 Paper CapadtiesandSizes 00 1 4 Printer Dimensions 2 o lll lle 1 6 Electrical Specifications lr 1 6 Acoustic EMISSIONS e 1 7 Related Documentation 0 eae 1 19 Printer and Toner Cartridge Environmental Conditions 2 4 Indicator LightS o o 3 4 Control Panel Keys o e 3 5 Settings and Defaults o 3 6 Control Panel Menu Map 3 7 Printing Menu Items a 3 8 PCL Menultems o o 3 9 JobMenultems 2l lle 3 10 Configuration Menultems 3 11 Memory Configuration Items 3 12 Parallel Menu Items 3 13 TestMenultems o a a es 3 14 Other ServiceMenultems 000 eae 3 18 Menu of ResetS aoaaa
11. 2 hours or 3 hours A 10 second interval is also available in Service Mode The printer retains all printer settings and downloaded fonts and macros while in Power Save mode The default setting is Power Save ON with a 15 minute idle time Power Save can also be turned OFF from the control panel The printer exits Power Save mode and enters the warm up cycle when any of the following occur A jobis printed A control pane key is pressed The printer front door is opened and closed A paper cassette is removed or installed Printer error messages override the Power Save message The printer will enter Power Save mode at the appropriate time but the error message will continue to be displayed Resolution Enhancement REt TheFormatter PCA contains circuitry for Resolution Enhancement technology REt which modifies the standard video dot data on its way to the DC Controller to produce smoothed black to white boundaries REt is user adjustable from the control panel or from some software applications Available settings are Light Medium Dark or Off The default setting is Medium REt settings sent from software or printer drivers override any control panel settings G M9IAJ9AQ jeuonouny Functional Overview 5 11 EconoMode The E conoM ode setting uses approximately 75 less toner than standard mode printing by reducing the dot density However E conomode does not extend toner cartridge component life EconoM
12. 5 72 127V 60 Hz 87A MANUFACTURED Go sue Cet senat no XXXXXXXX Made in Japan msseo d This device complies with Part 15 of the FCC Rules 0 ing tw not cause harmful interference and 2 this device must accept any interference received includi may cause undesired opera ECC 10 Be4C3141A ing interference that jon C3141A Sample Model and Serial Number Labels Product Information 1 5 L uoneuuoju J9NPOId Specifications This section contains information on physical and electrical characteristics of the printer For information on printer site requirements such as operating temperature and humidity ventilation etc see Chapter 2 Table 1 3 Printer Dimensions Width 18 in 46 cm Depth 23 in 59 cm Height standard 12 in 30 cm with Optional Lower Cassette 17 3 in 44 cm Weight with toner cartridge 52 Ibs 23 5 kg Toner cartridge weight 70 5 oz 2000 g full 56 4 oz 1600 g empty Some quantity of toner will reside in the waste toner area of a toner cartridge when the toner supply is exhausted Therefore using toner cartridge weight may be an unreliable indication of remaining toner supply Table 1 4 Electrical Specifications vous Fea Amps Wats ypican 120 Vac 10 50 60 Hz 2 Hz printing 385 100 Vac 10 50 60 Hz 2 Hz standby 115 Power Save Mode 31 220 Vac 10 50 60 Hz 2 Hz printing 400 240Vac 10 50 60 Hz 2 Hz stand
13. B 8 1 O Information Configuring Apple EtherTalk Phase Parameter To configure EtherTalk parameters If you do not want to conn gu re the phase parameter Pres Pres i x Press PJ Pres 4 appears Pres appears Press to change the phase pue i Press to save the new value F Pres You may want to conf gure the App eTel k name and assign a preferred EtherTalk Zone After completing this guide refer to the HP J etDirect Interface Configuration Guide for further configuration instructions on using the HP Laser et Utility OU RUN Hp N Disable Network Protocols Optional Press totakethe pant nee om ine Pres epeateu y an MIO ME Press DEJ cre Press EJ cr Press EIES CFG Pres to scroll through endi network protocol To Disable Novell NetWare Pres to change to F Pres to save the new stalus Pres to continue configuring ri To Disable DLC LLC Pres to change to DLC LLC Pres 4 to save the new status Press to continue configuring 1 appears appears To Disable TCP IP Press to change to TEP IF 0FF Pres to save then new status appears Pres to continue configuring amp appears To Disable Apple EtherTalk and LocalTalk Pres to change to t F Pres to save the new status appears Pres to continue configuring I O Information B 9 uoyeuojur oj E B 10 1 O Information Regulatory Informati
14. Control Panel Layout o 3 3 Service Mode Menus o 3 16 Self Test Printout printed in ServiceMode 3 21 Engine Test 2 4 845 RR x RR RE EUR AX ER RES 3 22 Printer Functional Block Diagram 5 3 Power Supply Power Distribution 5 4 Formatter PCA Block Diagram 5 10 EconoMode vs Normal Mode 5 12 Image Formation Blok Diagram 5 17 PhotosensitiveDrum llle 5 18 Drum Cleaning e eee ee 5 19 Primary Charging Roller rss 5 20 ImageWriting o e 5 21 Image Development o o o 5 22 Image Transferring o o e 5 23 ImageFusing llle 5 24 Paper Path ecoa eca ave woa ava o a e dd Ren 5 25 Clutches and Sensors oaoa 5 26 General TimingDiagram 5 29 Phillips vs Posidriv Screwdrivers 6 4 Removing the Control Panel 6 8 Upper Cover o o nn 6 9 Static Charge Eliminator 6 10 Removing Side Covers o 6 11 Removing Rear Cover 1 ee a 6 12 Exhaust Fan 00002 ee ee 6 13 High Voltage Power Supply PCA 6 14 Cassette Size Sensor Assembly 6 15 Card AAA 6 16 Rear Exhaust Fan e 6 17 Power Supply Unit o 6 18 DC
15. WM J OB 300 7 15 WM J OB 600 A3 7 15 WM J OB 600 LGL 7 15 WM MEM CNFIGN A 7 15 62 7 13 79SERVICE 7 14 printer reset 3 23 printer space requirements 2 4 printer timing 5 28 INTR 5 28 LSTR 5 28 PRNT 5 28 STBY 5 28 WAIT 5 28 printing menu 3 8 default settings 3 8 printing menu item COPIES 3 8 ECONOMODE 3 8 FORM 3 8 MANUAL FEED 3 8 ORIENTATION 3 8 PAPER 3 8 RET 3 8 priority of errors 7 5 PRNT printer timing 5 28 product information 1 1 1 22 product overview 1 11 PS CONFIG PAGE test menu 6 6 PS CONFIG PAGE test menu item 3 14 PS DEMO PAGE test menu item 3 14 PS MEM memory configuration menu item 3 12 PS TYPE LIST test menu item 3 14 PT SIZE PCL menu item 3 9 PWRSAVE see also power save PWRSAVE job menu 3 15 PWRSAVE job menu item 3 10 R radio frequency interference RFI C 4 RAM 5 14 described 5 14 messages 7 12 7 13 ram size self test information 3 20 random access memory described 5 14 read only memory described 5 14 ready light 3 4 rear and top area assmblies 6 16 card cage 6 16 DC controller PCA 6 19 laser scanner assembly 6 20 power supply unit 6 18 rear exhaust fan FM2 6 17 rear cover removal and replacement 6 12 rear exhaust fan FM2 removal and replacement 6 17 recyding toner cartridges 1 18 refilled toner cartridges 1 18 registration roller removal and replacement 6 39 registration roller guide plate removal and replacement 6 41 regulatory information C 1 C 4 related documentation
16. and that the spring action is functional If dirty clean using alcohol only if damaged replace the High Voltage Power Supply PCA see Chapter 6 for procedure 7 34 Troubleshooting Table 7 21 Paper Curl Paper curl is inherent to the laser printing processes and occurs when paper is subjected to heat Paper curl tends to relax as the paper cools while resting on a flat surface The specification for maximum paper curl when the paper is lying flat before print is 5 mm 0 2 inches Although paper curl cannot be totally eliminated some steps can be taken to lessen its impact as suggested in the following table Causes of Paper Curl Possible Cause Recommended Action 1 Paper Path Try using MP Tray 2 Paper Surface The recommended printing surface of the page is usually marked on the end of a ream of paper indicated by a small arrow and the phrase print this side first Load paper in the Paper Cassette with the recommended printing surface facing UP facing down in the MP Tray Bunoouse qnoa L 3 Paper Storing and Over time paper assumes the characteristics of its Handling storage environment in a humid environment paper absorbs moisture in a dry environment paper loses moisture Paper with higher moisture content will tend to curl more Evaluate the storage conditions of the paper 4 Paper Type All paper is manufactured differently different textures moisture content drying processes compos
17. described 5 15 memory upgrade removal and replacement 6 5 menu memory configuration 3 12 menu key 3 5 menu of resets 3 24 menu selections self test information 3 20 menu selections saving 3 7 menus control panel 3 7 MENUS LOCKED status message 7 9 Menus control panel map of menus 3 7 MEt 5 15 MF FEED message 7 9 MF FEED message 7 9 microswitch SW501 5 6 7 7 7 8 SW7001 5 8 7 31 minus key 3 5 MIO card 5 13 cold reset 7 7 initializing 7 9 installing card 7 7 Jet Direct 1 3 menu 3 20 B 5 B 9 messages 7 9 modular I O card 5 13 options 3 20 PCA 5 10 ports 3 24 reserved 3 20 self test information 3 20 slot 1 12 model number 1 5 model printer 8 3 modular I O MIO 5 13 motors described 5 9 MP drive gears removal and replacement 6 30 MP guide plate assembly removal and replacement 6 29 MP LOAD status message 7 10 MP tray 1 8 1 11 3 5 5 25 5 27 6 31 6 33 7 8 7 11 7 27 7 35 adhesive labels 1 9 capacities and paper sizes 1 4 3 5 drive gears 6 30 extension 1 11 manual feed printing 5 27 paper sensor 5 26 5 27 paper width guides 1 11 pickup 5 7 pickup dutch 5 8 5 26 pickup roller 6 28 print process 5 27 removal and replacement 6 32 transparencies 1 9 MP TRAY configuration menu 7 8 MP TRAY configuration menu item 3 11 MP tray capacities and paper sizes 7 7 7 9 MSDS C 3 multipurpose tray 5 27 see also MP tray N NARC North American Response Center 1 21 NVRAM non volatile memor
18. envelope seam can cause a background scatter printing on seams try a higher print density problem setting see item 6 below 4 Defective toner cartridge Install a new toner cartridge 5 Dirty or worn Transfer Roller A worn Transfer Clean the Transfer Roller using a dry lint free Roller can cause background due to improper cloth DO NOT touch the Transfer Roller with bias voltages your fingers If the problem persists replace the Transfer Roller Assembly 6 Print Density set too low If the Print Density is Adjust the print density to a higher setting set too low then background scatter can result particularly with envelopes and heavier papers Background Scatter at Leading Edge Only Leading Edge Halo 1 This problem is caused by toner buildup in the Replace Fuser Inlet Guide see Chapter 6 Fuser Inlet Guide Table 7 15 Partial Blank Page Possible Cause Recommended Action 1 Page too complex The printer can not create Set Page Protect to ON or AUTO the image fast enough to keep pace with the print engine 2 Not enough memory The page is too complex Add printer memory As an alternative simplify for standard printer memory the print job 3 Printing on legal size paper when software is Review software selection Ensure that printing specifying letter size this will also cause paper is on selected size jams 7 28 Troubleshooting Table 7 16 Faulty Registration Possible Cause Recommend
19. is displayed E represents the page count currently stored in Non Volatile M emory The underlined character denotes the cursor position Pres 4 toscaoll the cursor to underline the desired digit C2 Press to select the correct value 99 Pres to store the new valuein NVRAM S S Set each digit in the same manner Pres to return the display to 2 E Usethe procedure described above to set the serial number in the printer memory Pres asecondtimeto exit Service M ode Operating Overview 3 17 Setting the Cold Reset Default Paper Size When replacing a Formatter PCA with a default paper size setting of A4 set the Customization Variable to A4 Toset the Customization Variable Enter the Service Mode as previously described in this chapter Pres to access the Service Menu Pres to step through the menu until ci Press to toggle between Letter and A4 paper Press to save your selection Pres to return the display to Pres a second time to exit Service Mode WN HP is displayed A N O Ul Other Service Mode Items If any of the following items need to be changed from their default settings the procedure is similar to that used for setting the page count or cold reset default described above Table 3 12 Other Service Menu Items O 1 Service Menu Items em oem Poston 000000 oer rrtactoy test purposes Do notchange Lr tacto test purposes Do not
20. power supply unit removal and replacement 6 18 preliminary troubleshooting 7 3 primary charging roller 5 20 print capacity toner 1 17 print density adjusting 5 6 bias voltages 5 22 dial 1 13 6 14 location 5 6 print pattern 3 20 print density adjustment explained print density control explained 5 22 print environment settings PJ L 5 15 print media adhesive labels 1 9 automatic selection 5 25 envelopes 1 8 1 10 7 28 new 1 8 shipping 1 10 specifications 1 8 7 8 storing 1 10 transparencies 1 9 7 27 print overrun message 7 11 print quality 3 8 cleaning printer 4 3 complex image 7 15 EconoMode 7 23 HP Laser et toner cartridges 1 18 paper guidelines 1 8 Index 6 refilled toner cartridges 1 18 toner low 7 8 transfer roller 4 3 print resolution 1 3 3 20 5 21 7 15 print speed 1 3 5 12 5 14 printer buffer memory 5 15 cleaning 4 3 fonts 1 3 memory 1 3 1 22 3 12 3 17 3 20 3 23 5 12 5 14 6 5 7 7 7 11 7 13 7 15 7 28 8 5 memory configuration 3 12 memory upgrade 6 5 8 5 MEt 5 15 model number 1 5 non volatile memory 3 17 5 14 optional memory 1 3 PCL memory 3 20 serial number 1 5 standard memory 1 3 7 28 testing 3 19 typefaces 7 6 printer comparison memory 1 3 printer damage adhesive labels 1 9 envelopes 1 8 non HP product 1 22 printer dimensions 1 6 printer features 1 3 comparison 1 3 internal typefaces 1 3 languages 1 3 memory 1 3 monthly usage 1 3 speed 1 3 printer fonts substituting 7 9
21. printer functions basic 5 3 printer job language PJ L 5 15 printer languages 1 3 Adobe PostScript 5 14 Adobe s PostScript Level 2 8 5 PCL 3 9 printer message troubleshooting 7 5 printer messages 00 OFFLINE 7 6 00 POWERSAVE 7 6 00 READY 7 6 02 WARMING UP 7 6 04 SELF TEST 7 6 05 SELF TEST 7 6 06 DEMO PAGE 7 7 06 PRINTING TEST 7 6 06 TYPEFACE LIST 7 6 07 RESET 7 7 08 COLD RESET 7 7 09 RESET ALL I O 7 7 09 RST ACTIVE I O 7 7 10 RESET TO SAVE 7 7 12 PRINTER OPEN 7 7 13PAPERJAM 7 8 14 NO TONER CART 7 8 16 TONER LOW 7 8 18MIOINIT 7 9 18 MIO NOT READY 7 9 20MEM OVERFLOW 7 11 21PRINT OVERRUN 7 11 22 MIO ERROR 7 11 40 MIO ERROR 7 11 41 3 PAPER ERROR 7 11 51 ERROR 7 12 52SERVICE 7 12 53 XY ZZERROR 7 12 55 ERROR 7 13 57SERVICE 7 13 58 x SERVICE 7 13 61 x SERVICE 7 13 63through 67 SERVICE 7 13 68 READY SERVICE 7 13 68SERVICE 7 13 700r 71 ERROR 7 14 dearable warning 5 14 7 5 7 15 control panel 7 6 error 7 6 fan motor failure 7 13 FS DISK FAILURE 7 9 LCLOAD 7 10 LC TRAY EMPTY 7 10 main motor failure 7 13 manual feed 7 5 memory error 5 27 7 5 MENUS LOCKED 7 9 MF FEED 7 9 MIO 7 9 MP LOAD 7 10 paper out 7 5 PCINSTALL 7 10 PC LOAD 7 10 PC TRAY EMPTY 7 10 self test 7 6 status 7 6 toner cartridge 7 5 troubleshooting 7 5 WOJ OB 600 A4 7 15 W1IMAGE ADAPT 7 15 W2 INVALID PERS 7 15 W3J OB ABORTED 7 15 W8 OB 600 OFF 7 15 W9J OB 600 LTR 7 15 WD DISK NOT INIT 7 15 WM personality MEM FULL 7 15 WM CHK MEM CNFIG 7 15
22. status message 7 10 left side assemblies 6 13 cassette size sensor assembly 6 15 exhaust fan 6 13 HVPS PCA 6 14 lights indicator 3 3 3 5 lines per page selection 3 8 LocalTalk cable B 2 connecting B 2 B 3 disabling B 9 hardware 5 13 1 0 5 13 interface 5 13 8 6 B 4 B 5 network cable 5 13 LOCK selection 3 11 lock and password self test information 3 20 LOCK configuration menu tem 3 11 LOW TONER configuration menu item 3 11 lower cassette Index 4 option 5 25 5 27 6 7 6 44 LSTR printer timing 5 28 M main drive assembl y removal and replacement 6 22 main motor M1 described 5 9 location 6 21 messages 7 13 reinstalling 6 21 removal and replacement 6 21 synchronized with scanner motor 5 21 main wiring diagram 7 37 maintenance 4 1 4 4 major assembly locations 8 9 Manual Feed selection 3 8 manual feed printing 5 27 MANUAL FEED printing menu item 3 8 Material Safety Data Sheet MSDS C 3 media selection guidelines 1 8 memory buffer 5 15 configuration 3 12 error messages 7 15 MEt 1 3 5 15 non volatile 3 17 5 14 PCL 3 20 PostScript 5 14 printer 1 3 3 12 3 17 3 20 3 23 5 12 5 14 6 5 7 7 7 11 7 13 7 15 7 28 8 5 RAM 5 14 ROM 5 14 SIMM 1 22 standard printer 7 28 upgrades 8 5 memory configuration menu 3 12 control panel 3 12 default settings 3 12 memory configuration menu tems IO BUFFER 3 12 IOSIZE 3 12 PCL MEM 3 12 PS MEM 3 12 RESRCSAVE 3 12 memory enhancement technology 5 15
23. temporary settings 3 6 test menu 3 14 using 3 3 control panel cover removal and replacement 6 8 control panel key continue 3 5 enter 3 5 item 3 5 menu 3 5 minus 3 5 MP paper size 3 5 on line 3 5 plus 3 5 reset 3 5 shift 3 5 ndex 2 COPIES printing menu item 3 8 copies selection 3 8 cover and doors 6 8 control panel 6 8 rear cover 6 12 sidecovers 6 11 static charge eliminator 6 10 upper cover 6 9 covers 8 10 CPU Intel 8096CF microprocessor 5 13 formatter PCA 5 6 CPU printer 5 13 D datecode self test information 3 20 DC controller PCA removal and replacement 6 19 DC Controller system 5 7 DC power distribution circuitry 5 7 DC controller system 5 7 explained 5 7 default settings 3 6 control panel 3 5 power save 5 11 default factory 7 7 B 5 defaults cold reset 3 15 control panel 5 11 factory 3 6 see also factory defaults optional lower cassette 5 25 override 3 6 paper source 5 25 PCL menu 3 9 permanent 3 6 printing menu 3 8 defaults factory 3 6 defect ruler repetitiveimage 7 36 delivery area assemblies 6 34 anti static brush 6 42 cartridge guide 6 36 cassette pickup roller assembly 6 37 delivery gear assembly 6 35 paper guide 6 43 registration roller 6 39 registration roller guide plate 6 41 separation pad 6 38 upper and lower delivery roller assemblies 6 34 delivery gear assembly removal and replacement 6 35 Department of Health and Human Services DHHS C 1 developing process 5 22
24. 1 MByte C3130A You can upgrade to a total of 68 2 MByte C3131A MBytes of memory in the HP 4 MByte C3132A LaserJet 4V and upgrade to 52 8 MByte C3133A MBytes in the HP LaserJet 4MV 16 MByte C3146A Adobe s PostScript Level 2 C3160A You can add Adobe s Level 2 PostScript language by installing this SIMM in your printer Additional memory required It is standard in the 4MV printer 250 sheet replacement Paper C3160A 250 sheet adjustable between Cassette Letter and A4 C3161A 250 sheet adjustable between 11x17 and A3 C3162A 250 sheets legal only C3163A 250 sheets JIS B4 only C3164A 250 sheets JIS B5 only 500 sheet Universal Lower C3760A 500 sheets adjustable for Letter Cassette Base Unit includes legal 11x17 A4 A3 JIS B4 500 sheet paper cassette See Table 8 12 for replacable 500 sheet replacement paper C3761A parts cassette for Universal Lower Cassette Base C2950A 2 meter IEEE 1284 compliant C2951A 3 meter IEEE 1284 compliant Parts and Diagrams 8 5 8 sweibeig pue sued Table 8 1 Accessories and Supplies continued Modular I O and Network Cards J2550A HP JetDirect Multi protocol Network Card with Ethernet IEEE802 3 10Base T J2552A HP JetDirect Multi protocol Network Card with LocalTalk DIN 8 and Ethernet IEEE802 3 10Base T BNC Standard in 4MV J2553A HP JetDirect Multi protocol Network Card with Token Ring DB9 and RJ45 UNIX Interface Software J2374B HP JetDirect inter
25. 11 Table 7 2 Service and Error Messages continued 50 SERVICE Fuser malfunction resulting from either an Switch the printer OFF for at least 20 minutes and overheating or underheating condition then back ON If the error continues 1 Verify that the Fusing Assembly is installed correctly and is fully seated into its connectors no bent pins or pins outside their receptacles 2 Reseat or replace the fuser cable assembly 51 ERROR Beam detect malfunction 52 SERVICE Scanner malfunction 53 XY ZZ ERROR SIMM memory error X Hardware Type 0 ROM 1 RAM Y Hardware Device 0 Internal Memory 1 SIMM Slot 1 2 SIMM Slot 2 3 SIMM Slot 3 4 SIMM Slot 4 ZZ Error Number Unsupported memory Unrecognized memory Unsupported memory size Failed RAM test Exceeded maximum RAM size Exceeded maximum ROM size Invalid SIMM speed SIMM reporting information incorrectly SIMM RAM parity error SIMM ROM needs to be mapped to an unsupported address SIMM address conflict ROM out of bounds Could not make temporary mapping 7 12 Troubleshooting Press to resume operation Note if AUTO CONT ON the printer will automatically continue printing when this error occurs If error persists 1 Check cable from DC Controller to Laser Scanner Assembly 2 Replace Laser Scanner Assembly 3 Replace DC Controller PCA Switch the printer OFF and then back ON If the error continues 1 Check cable from DC
26. 16 faulty registration 7 29 fax information service HP FIRST 1 20 FCC statement C 4 features control panel 1 3 1 11 3 3 3 7 3 8 3 12 3 14 3 17 3 2 Finland laser statement C 2 firmware datecode self test information 3 20 firmware date code 3 20 FM1 fan motor 5 9 FM2 fan motor 5 9 FM3 fan motor 5 9 font storage 5 14 Font Number selecting for PCL 3 9 FONT NUMBER PCL menu item 3 9 Font Source selecting for PCL 3 9 FONT SOURCE PCL menu item 3 9 FONT SOURCE PCL menu selection 3 9 fonts 3 12 5 14 6 6 7 11 Adobe PostScript 5 14 default 3 9 downloaded 5 11 5 14 7 7 7 15 internal 1 3 internal character sets 5 14 software 3 20 source 3 9 storing 5 10 substituting 7 9 symbol set 3 9 temporary 7 7 temporary soft 7 7 fonts internal 1 3 foot assemblies 8 12 removal and replacement 6 44 form feed light 3 4 form feed key 3 5 3 15 form feed light 3 4 FORM printing menu item 3 8 formatter number self test information 3 20 formatter PCA Bi tronics interface 5 13 block diagram 5 10 control panel PCA 5 16 damage 6 5 DC controller PCA 5 28 described 5 10 disk accessory 5 10 enginetest print 3 22 3 5 0 5 11 HVPS PCA 5 6 Intel 80969CF microprocessor 5 13 MIO card 5 13 MIO PCA 5 10 page count 3 17 PostScript SIMM 5 10 replacing 3 17 3 18 REt 5 11 self test bypass 5 8 SIMMs 5 10 5 14 voltages 5 7 formatter system described 5 10 front door assemblies 1 13 6 25 6 27 6 30
27. 20 verifing page count 3 17 SELF TEST test menu tem 3 14 sensors 5 26 described 5 26 separation pad removal and replacement 6 38 sequence of operation 5 28 serial number 1 5 information 1 5 labels 1 5 plate 1 12 printer memory 3 17 self test 3 15 3 17 self test information 3 20 setting 3 17 service and error messages 7 11 7 14 see also printer messages for complete listing service approach 1 16 service errors 7 5 service mode 3 15 authorized personnel 3 15 exiting 3 15 features 3 15 initiating 3 15 items 3 18 menu 3 17 power save mode 3 15 self test 3 15 settings and defaults 3 6 shift key 3 5 shipping print media 1 10 side covers removal and replacement 6 11 SIMM memory 1 22 SIMM slots 1 12 described 5 14 formatter PCA 5 14 PostScript 5 14 simple reset 3 23 site requirements 1 6 2 1 2 4 skip demo service menu tem 3 18 slots cartridge 1 3 SME Support Materials Europe 1 19 smeared print 7 30 soft fonts temporary 7 7 space requirements 2 4 specifications adhesive labels 1 9 electrical 1 6 envelopes 1 8 MP tray 7 8 Index 8 paper 1 8 1 19 7 8 7 11 7 21 7 23 7 25 7 30 printer 1 6 1 22 2 3 transparency 1 9 standard cassette capacities 1 4 standard interfaces 1 3 standard printer memory 1 3 7 28 static charge eliminator removal and replacement 6 10 status messages 7 6 7 10 see also printer messages for complete listing STBY printer timing 5 28 storing print media 1 10 supplie
28. 2000K bytes Available Resource Saving 1000K bytes Allocated of 2000K bytes Available PCL Memory 500K bytes Allocated 61K bytes Used POSTSCRIPT Memory 500K bytes Allocated 52K bytes Used L S amp 0123456789 lt gt ABCDEFGHISKLMNOPORSTUVWXYZ _ lAESE amp 0123456789 lt gt 2 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ HS amp amp 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ _ Et amp 012345678 GABCDEFGHIJKLMNOPQRSTUVWXYZ amp 0123456789 lt gt 6ABCDEFGHIJKLMNOPQRSTUVWXYZ _ E 0123456789 lt gt 20ABCDEFGHIJKLMNOPORSTUVAXYZ 60566GaBsnaBonATOEAioRA iS0 Aapaf 16066550typp uSx ELLEN ORAL o AL SE TyPp u 4 19 eee n e n fOEAieaAlIOU iSOAAabOil OOOOGSS YyDp u X 04 amos AREE II v toracozA ero eto ite ses cmos ARB ETI abcdefghijklmnopgrstuvwxyz iEi H 5 Ka Self Test Printout printed in Service Mode and the PostScript Logo are trademarks cf Adobe Systeme Incorporated which may ke registered in certain jurisdictions abcdefghijklmnopgrstuvwxyz 1 45 8 012345678 0123456789 0123456789 _ abedefghijklmnopgrstuvwxyz aera 012345678 abcdefghijklmnopgrstuvwxyz E 4S 8 abcdefghi jklmnopqrstuvwxyz iSS amp t 0 0123456789 Sacro a Er D HE 085380 0 1 0 Y8 e86604664aebnaeb ATORAfonAT0UEiSORAapaf oD X8f688604660a860a860 19EA 1o
29. 45 Figure B 5 callout 3 and DIN 8 LocalTalk Figure B 5 callout 4 Select the appropriate interface cable from those shown below for the system and connect the cable or cables to the printer 1 0 Connector Locations The cable used to connect the printer tothe network a BNC T connector and a 50 Ohm terminator are not provided with the printer They must be purchased separately Y ou may attach either a ThinLAN cable or a 10Base T cable but not both at the same time BNC Interface Attach one section of the ThinLAN cableto oneside of the BNC T connector Attach another ThinLAN cable section or a 50 Ohm terminator tothe other side If you areattachingthe printer to the end of your network you must connect a 50 Ohm terminator 10Base T Interface Plug the connector of the twisted pair network cable into the 10Base T jack RJ 45 on the HP J etDirect card The other end of the cable should then be attached to a twisted pair hub concentrator NOTE uBWN PE DIN 8 LocalTalk Interface Plug the end of the DIN 8 cable into the LocalTalk port on the HP J etDirect card will appear If you are using only the LocalTalk port 3 utomati cally every time you turn on the printer This SEE will disappear after 5 minutes Optional Network Configuration The following is for HP Laser et 4MV printers only Certain network parameters for Novell NetWare UNIX HP UX Solaris or SunOS and Ethe
30. CC ap aX ap a a ac ac aq XX aX a aaa aaa Ca aX aX ap X a a a a a Ca X aX aX aX a a aaa atatatatatatatatata ec C ac X ac ap ac a teteqtgtatate CC ep C ap C pc ac ac PPP page 7 28 14 PARTIAL BLANK PAGE see Table 7 15 page 7 28 or Leading Edge Halo BACKGROUND SCATTER see Table 7 19 Troubleshooting 7 D p EWLETT 7 postea Laser a High Performance a PostScript Level 2 Adobe PostScript 35 PostScript Typefaces Pius Banco POLS Tout ls Wide Paper Format AN PR Network Ready Gert Power Save FAULTY REGISTRATION see Table 7 16 page 7 29 SMEARED PRINT see Table 7 17 page 7 30 5 poe PA tills Lise 4 High Perfomance a 600 dpi Suus orn e PostScript evel 2 ES PostScript ypefaces J Wide PapeiFormat BX Network Rady enit Power Save O presiona arsi Q High Performance eS 600 dpi Se UB PostScript Level 2 Adobe PostScript 35 PostScript Typefaces ej Wide Paper Format Z5 Network Ready po Powers Save nes COMPRESSED PRINT see Table 7 18 page 7 30 7 20 Troubleshooting IMAGE SKEW see Table 7 19 page 7 30 Table 7 4 Blank White Page Possible Cause OCCASIONAL BLANK PAGES 1 Software Configuration 2 Network Configuration Some sharing devices on networks may generate a blank pag
31. DHHS C 1 diagnostics service menu 3 18 diagrams 8 3 dimensions printer 1 6 disk accessory 3 20 5 14 formatter PCA 5 10 installing 6 6 location 1 12 5 14 6 6 PostScript option 6 6 printer reset 3 12 removal and replacement 6 6 distribtution system power supply 5 4 distribution system AC 5 5 distribution system power supply 5 4 5 7 documentation network 7 9 related 1 19 doors 8 10 dropout 7 26 drum photosensitive 5 6 5 18 7 16 7 32 7 33 drum cleaning process described 5 17 5 19 drum conditioning described 5 17 5 20 drum drive assembl y removal and replacement 6 24 drum rotation functional check 7 33 dynamic I O switching PJ L 5 15 E EconoMode 1 3 5 12 print quality 7 23 print speed 5 12 7 23 vs normal mode 5 12 ECONOMODE printing menu tem 3 8 electrical specifications 1 6 emissions acoustic 1 7 engine test 3 22 7 31 printing 7 31 engine test button location 7 31 engine test microswitch SW7001 5 8 7 31 Enter key 3 5 envelopes 1 8 background scatter 7 28 MP tray 1 8 printer damage 1 8 specifications 1 8 storing 1 10 windows 1 8 environment operating 2 3 environmental requirements 2 4 error messages 7 6 7 9 7 11 7 15 see also printer messages exchange program 1 16 exhaust fan FM1 removal and replacement 6 13 external assembly locations 1 11 1 12 F factory defaults 3 6 7 7 B 5 cold reset 3 15 faded print 7 23 fan motor described 5 9 messages 7 13 faulty image examples 7
32. I O switching between multiple computers or networks connected to the printer The Laser et 4MV printer includes the 2552A HP J etDirect Multi protocol Network Card with LocalTalk DIN 8 and Ethernet I E E E 802 3 10Base T BNC LocalTalk I O The printer implements AppleTalk networking protocol through LocalTalk hardware The LocalTalk network cable HP P N 92215N is connected through the MIO card accessible from the printer rear panel See Appendix B for more cabling information CPU The Formatter PCA incorporates the Intel 80960CF microprocessor operating at 33 33 MHz G M9IAJ9AQ jeuonouny Functional Overview 5 13 NOTE Printer Memory If the printer encounters difficulty managing available memory a Clearable Warning message will be displayed on the Control Panel Refer to Clearable Warnings in Chapter 7 for details 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 RAM memory capacities for each printer are shown under Printer F eatures in Chapter 1 Memory capacities can be increased by adding SIMMs to the Forma
33. O Buffering and or Resource Saving probably because you removed a memory SIMM or added a new personality SIMM You can check settings by printing a self test WM CHK MEM CNFIG I O Buffering and or Resource Saving settings were altered when the printer was switched on because the printer did not have enough memory This usually occurs after memory has been removed from the printer You can check settings by printing a self test Adding additional memory should correct this problem Troubleshooting 7 15 HuljooysajqnoiL L Image Formation Troubleshooting Check the Toner Cartridge Image formation defects are many times the result of toner cartridge problems If thereis any doubt always replace the toner cartridge before troubleshooting image defects Use the following check list to ensure that the toner cartridge is still operable Inspect the toner cartridge for remaining toner Check the expiration date of the toner cartridge stamped on the cartridge box Check the toner cartridge to see if it has been disassembled or refilled Ensure that the toner cartridge is seated properly in the cavity 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 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 photosens
34. Rs 3 14 Service Mode 2 lel 3 15 Power Save 4d xp oko on odo wk cRCOEGAELA XD EXC ee e 3 15 Setting the Page Count and Serial Number 3 17 Setting the Cold Reset Default Paper Size 3 18 Other ServiceModeltems 0 e 3 18 Testing the Printer o e es 3 19 Printing a Self Test Page e 3 19 Understanding the Self Test Printout 3 20 Self Test Printout Key o e 3 20 Engine Test uuu e dy Dok hoe Bk Ge os 3 22 Resetting the Printer 0 e e e eo 3 23 Simple Resets a vos a a acd RO RO PURORUS xv RICE e aod 3 23 Cold Reset o ellen 3 23 MenuofResets e e 3 24 Operating Overview 3 1 3 2 Operating Overview Using the Control Panel Control Panel Layout The control panel consists of a 16 character display panel three indicator lights and eight keys three of which have alternate functions Figure 3 1 On Line Form Feed MP Paper Size Enter Item Continue Control Panel Layout Operating Overview 3 3 MO9IAJ9AQ Dunejedo Indicator Lights The control panel indicator lights are described in the following table The column labeled Do this includes an action only when an action is required Table 3 1 Indicator
35. UP and the job will print when the fuser has warmed 00 OFFLINE Printer is off line and cannot receive data 02 WARMING UP The printer is warming up and is not ready to Wait until the printer signals ready If the message accept data remains on continuously 1 Disconnect interface cable from the printer power off then on Problem may be caused by connecting the parallel cable to a serial port ora bad host interface 2 Check if Fusing Assembly is warming up If not replace the Fusing Assembly 3 Replace the DC Controller PCA 4 Replace the Power Supply Unit 5 Replace the Formatter PCA 04 SELF TEST Printing a continuous self test Press or to Stop the test Several more pages may print 05 SELF TEST Printer self test in process non printing No action required 06 PRINTING TEST Printing a self test No action required 06 TYPEFACE LIST Printing a Typeface List Note that No action required PCL PostScript formats are different 7 6 Troubleshooting Table 7 1 Status Messages continued 06 DEMO PAGE Printing a Demonstration Page Note that PCL PostScript formats are different No action required 06 CONFIG PAGE Printing a Configuration Page No action required 07 RESET 08 COLD RESET 09 MENU RESET 09 RST ACTIVE I O 09 RESET ALL I O 10 RESET TO SAVE Follows a control panel selection The printer returns all aaa PCL Job and installed personality PS etc Menu item
36. amp See Figure 8 10 00900 o we ae 2 o e o e o o e o e Table 8 11 Card Cage Assembly e ee T CCT RB1 5557 000 Rail Slide Right a1 5558 000 Rai Side Let EIC CT Parts and Diagrams 8 29 8 sweibeig pue sued Table 8 12 Optional Lower Cassette Assembly m ne on foot O C3760 60001 Lower Cassette Assembly C3760 69001 Exchange Lower Cassette Assembly C3760 60503 Lower Cassette Paper Guide C3760 60502 Lower Cassette Paper Tray C3760 60501 Lower Cassette Pickup Roller 8 30 Parts and Diagrams Parts Index Parts Index A 1 Alphabetical Parts Index Table A 1 Alphabetical Parts List CT CO E ET CTATETE CRECEN A s mem eme fef v ee seanoa nasus E bmc CITE e s mcm wmm e s wee eoo EC mr CORE IEC coment oo _ A 2 Parts Index Table A 1 Alphabetical Parts List continued Description Cover Rear Cassette RB1 5575 000 DC Cable Assembly RG5 0239 000 17 DC Controller PCA Assembly RG5 1559 000 12 Delivery Drive Assembly RG5 0505 000 16 eo e e do Display Panel Assembly 100 115V RG5 1539 000 13 Display Panel Assembly 220 240V 13 Display Panel Cable Assembly 14 Drum Drive Assembly 16 Eliminator Static Charge 3 Eliminator Static Charge 20 Exchange DC Controller PCA Assembly 10 12 Exchange Formatter PCA Assembly 10 14 Exchange Fusing Assembly 100 115V 4 18 Exchange Fusing Assembly 220 240V 18 Exchange Lower Cassette Assembl
37. and L 45V to rotate at low speed H 24V to rotate at high speed and L 5V to rotate at low speed H to rotate and L to not rotate L to operate cassette pick up roller L to operate registration roller L to operate multi purpose tray pick up roller L to tum intermediate plate solenoid ON Figure 7 7 Main Wiring Diagram Troubleshooting 7 41 Bunoouse qnoa L 7 42 Troubleshooting Parts and Diagrams Chapter Contents How toUsethePart Lists and Diagrams 8 3 Ordering Parts o e e 8 3 Ordering Consumables o e 8 4 Accessories and Supplies o lll 8 5 Common Hardware and Replaceable Cables 8 7 Illustrations and Parts Lists o 8 9 8 30 Parts and Diagrams 8 1 8 2 Parts and Diagrams How to Use the Part Lists and Diagrams The figures in this chapter illustrate the major subassemblies in the printer and their component parts A table material list follows each exploded assembly diagram Each table lists the reference designator item number for each part the associated part number for the item the quantity and a description of the part While looking for a 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 printer Ordering Parts All standard part numbers listed
38. appears on the display Use or tocydethrough the items Press to select your choice of resets An asterisk appears by the reset option Pres to exeate the reset The following table shows the three reset options Menu of Resets F i performs a simple reset see previous page and restores most of the printer factory default settings Items in the Config Memory Configuration and Parallel Menus are not reset ii clears the input and output buffers or the active 1O ely and performs a simple reset E L I f clears the input and output buffers for all l Os and direi a simple reset 3 24 Operating Overview Maintenance Chapter Contents Cleaning the Printer e e ee 4 3 Cleaning Spilled Toner o o e 4 4 NOTE This printer requires no regular maintenance except for routine cleaning procedures described in this chapter Maintenance 4 1 4 2 Maintenance WARNING CAUTION Cleaning the Printer To maintain the print quality thoroughly dean the printer e Every time you changethe toner cartridge e After printing approximately 7 500 pages e Whenever print quality problems occur Clean the outside of the printer with a lightly water dampened cloth Clean the inside with only a dry lint free doth Observe the warnings and cautions below Before you begin these steps turn the printer OFF and unplug the power cord to avoid shock hazard When cleaning aroun
39. begins After the paper passes by the drum and through the fusing unit it triggers the Delivery Unit Photosensor PS401 The paper is then fed through the output rollers and to the top output bin Printing from the MP Tray The presence of paper in the Multipurpose MP Tray is detected by the MP Tray Paper Sensor PS1 The intermediate plate pressurization solenoid SL1 is then activated releasing the plate which applies upward pressure on the paper causing it to contact the MP pickup roller The MP Pickup Clutch CL1 turns on at this time allowing the registration roller to rotate This feeds the paper from the MP Tray to the registration position Theremainder of the MP Tray print process is identical to the cassette feed process described above Printing from the Optional Lower Cassette When printing from the optional lower cassette any of the 250 sheet paper cassettes must also bein place The Pickup Armin the optional lower cassette feeds the paper upward through a guide slot in the 250 sheet cassette to the Registration Roller Once there the operation is the same as printing from a standard paper cassette Paper J am Detection The Pickup Unit photosensor PS501 in the registration area and Delivery Unit photosensor PS401 in the output area detect when paper is moving through the printer See Figure 5 14 for sensor locations If a paper jamis Functional Overview 5 27 G M9IAJ9AQ jeuonouny Basic Sequence
40. cable clip shown in Figure 6 10 callout 2 6 16 Removal and Replacement Figure 6 11 Rear Exhaust Fan FM2 The Rear Exhaust Fan is located on the left rear of the printer chassis and requires prior removal of the Card Cage assembly 1 Removethe Card Cage assembly see Figure 6 10 2 Unplug the fan cable connector and release it from its cable clip Figure 6 11 callout 1 3 Remove 2 small machine screws from the rear of the printer Figure 6 11 callout 2 4 Lift the fan up and away from the printer chassis noting position of the cable on the upper right corner of the fan body Figure 6 11 callout 3 Rear Exhaust Fan To Reinstall Make sure the fan body is seated to the rear of the chassis mounting tabs Removal and Replacement 6 17 9 jueuje2ejdoH PAO0UI9H Power Supply Unit The front door must be opened prior to removing the Power Supply Unit Remove the Card Cage assembly see Figure 6 10 Unplug the connector from the Fusing assembly Figure 6 12 callout 1 Unplug the connector from the DC Controller PCA Figure 6 12 callout 2 Remove the cables from the 4 cable clips Figure 6 12 callout 3 and remove the DC Controller and Formatter power cables Remove 3 machine screws Figure 6 12 callout 4 Remove 1 machine grounding screw with star washer Figure 6 12 callout 5 7 Lift the assembly up to clear the chassis and pull sideways out of the printer PWN au Figure 6 12
41. callout 1 and remove the cable from the 2 clips Figure 6 7 callout 2 2 Lift thefan out of its mounting noting the position of the cabling attaches to lower left outside of the fan body NOTE Removal of the Card Cage provides easier access to the connector on the DC Controller PCA especially when reconnecting Figure 6 7 callout 1 Figure 6 7 Exhaust Fan To Reinstall Make sure that the fan is installed in the correct direction exhaust not intake The cables should be toward the outside Removal and Replacement 6 13 High Voltage Power Supply PCA The High Voltage Power Supply is located along the left side of the printer 1 Removethe 2 connectors Figure 6 8 callout 1 2 Remove 4 machine screws Figure 6 8 callout 2 3 Remove 4 self tapping screws Figure 6 8 callout 3 4 Bend back the plastic cover and remove 1 machine grounding screw located beneath the plastic cover Figure 6 8 callout 4 5 RemovethePCA Figure 6 8 High Voltage Power Supply PCA To Reinstall Note the position of the Print Density Dial and how it is seated in the slide adjustment as shown in Figure 6 8 callout 5 CAUTION If the Print Density Dial is not seated properly the printer will not print properly 6 14 Removal and Replacement Cassette Size Sensor Assembly 1 Removethe High Voltage Power Supply PCA see Figure 6 8 o 2 Disconnect the cable see Figure 6 9 callout 1 5 3 Removethe 1
42. cartridge for a scratched photosensitive drum or toner leaking through worn seals Replace as necessary 2 Fusing Assembly is contaminated or damaged Inspect the Fusing Assembly for toner build up or scratches on the fuser rollers Try cleaning with alcohol Replace the Fusing Assembly if damaged 3 Static Eliminator Strip teeth are contaminated Remove and inspect see Chapter 6 for removal or defective procedure Clean using compressed air Replace if damaged 7 24 Troubleshooting Table 7 9 Black Lines parallel to path Possible Cause Recommended Action 1 Toner cartridge not seated properly Remove the cartridge and reinsert it 2 Toner cartridge defective Replace the cartridge 3 Repetitive defect If the lines are repeated ata Refer to Table 7 10 next as well as the Repetitive consistent interval down the page this is a Image Defect Ruler Figure 7 3 repetitive defect Table 7 10 Repetitive Defects Possible Cause Recommended Action 1 Toner cartridge is damaged The Inspect the drum for scratches or damage circumference of the photoconductive drum Replace the toner cartridge inside the toner cartridge is 94 mm 3 7 inches If the defect repeats at this interval the defect is associated with the drum see note below 2 Dirty Rollers Any dirty roller in the paper path Examine and clean rollers in the paper path may result in a repetitive print defect refer to Chapter 4 3 Fusing Ass
43. clear its alignment tabs Upper and Lower Delivery Roller Assemblies 6 34 Removal and Replacement Delivery Gear Assembly The Delivery Gear assembly is located adjacent to the Upper Delivery o Rollers on the top right end of the printer and requires previous removal of B9 the Upper Delivery Roller gt a O lt O 1 Removethe Upper Delivery Roller Figure 6 28 3 2 Remove 2 self tapping screws securing the U pper Cover support bracket 3 Figure 6 29 callout 1 3 Remove 2 machine screws Figure 6 29 callout 2 4 Remove 1 self tapping screw securing the foot of the output roller gears to the printer chassis Figure 6 29 callout 3 5 Pull the gear body outward to clear the retainer tab and alignment pins and lift it up and out of the printer Figure 6 29 Delivery Gear Assembly Removal and Replacement 6 35 Cartridge Guide The Cartridge Guide is located directly under the toner cartridge and behind the Registration Rollers Note that the removal of this guide does not require prior removal of the Upper Cover or any upper area assemblies 1 Usinga stubby Phillips screwdriver remove the two self tapping screws Figure 6 30 2 Lift the front edge of the plate upward and slide it forward out of the printer Note that the plate fits tightly within the opening Figure 6 30 A eere 4 E E 020920021011 H ED Cartridge Guide 6 36 Removal and Replacement Figure 6 31 CAUTION Cassett
44. edges Rewrap partially used packages of media before storing DONOT stack more than six cartons on top of each other Stack each carton upright and squarely on top of the one underneath DONOT place anything on top of media regardless of whether the paper is packaged or unpackaged Store envelopes in a protective box to avoid damaging the envelope edges Keep stored media away from temperature and humidity extremes DONOT store printed documents in vinyl folders which may contain plasticizers or expose the documents to petrol eum based solvents Shipping Print Media When shipping print media through different environments plastic wrap all cartons on the shipping pallet When shipping media across bodies of water wrap individual cartons as well Packaging must protect the media from physical damage 1 10 Product Information Figure 1 2 BE b6Bweamanauawne Product Overview External Assembly Locations 1 of 2 Front and Right Side View with MP Tray Open Front Cover Control Panel Output Bin Adjustable Paper Stop 250 sheet ledger 11x17 or A3 Paper Cassette ON OFF Switch 250 sheet Letter or A4 Paper Cassette Front Cover Release Button Multipurpose MP Tray MP Tray Extension MP Tray Paper Width Guides Fuser Door L uoneuuoju jonpoJud Product Information 1 11 External Assembly Locations 2 of 2 Figure 1 3 Rear and Left Side View Optional 42 8 Mbyte Disk Accessory Locat
45. of the bootp file for configuration parameters the default is to use the bootp file IP address 4 bytes Subnet mask 4 bytes Syslog server IP address 4 bytes Default gateway 4 bytes TCP connection ti meout in seconds To manually configure TCP IP parameters Pres appears Press appears Pres 000 04 appears Pres to Mea ly configure TCP IP parameters E appears If you keep then the values for the TC PIP P parameters will be provided by the bootp file no other TCP IP configuring is necessary Pres to change the value of the BOOTP parameter E appears P ress EX to savethe selection appears If you selected 11 then you will be Sone to configure each of the TCP IP parameters Press to continue configuring fF i appears Pres until the value of the first byte of the IP adi ee appears on the control panel display Note that if you Press and hold the value will scroll rapidly Pres tosavethe value Pres to continue Repeat steps 8 and 9 to configure the remaining bytes of thelP address Repeat steps 8 through 10 to configure the subnet mask bytes SM syslog server IP address LG default gateway GW and timeout TIMEOUT If no other protocol is enabled Pres After completing this guide refer tothe HP J etDirect Network Interface Configuration Guide for configuration instructions uoneuuojui oj E I O Information B 7 0 JO URWN HF w
46. 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 error message Page Protect allows the F ormatter 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 toPCL printing The default setting is Auto PJ L Overview Printer J ob Language PJ L is an integral part of configuration in addition to the standard Printer Command Language PCL With standard Centronics cabling PJ L allows the printer to perform functions such as Two way communication with the host computer through a Bi directional Parallel connection The printer can tell the host such things as the control panel settings and allow the control panel settings to be changed from the host Dynamic I O switching 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 off line Context sensitive switching allows the printer to automatically recognize the personalities PostScript or PCL of each job and configure itself to serve that personality Isolation of print environment settings from one print job to the next For example if a print job is
47. select t in the Configuration Menu Selects size of paper loaded in MP Tray Pressing saves your selection Saves a selected control panel key setting An asterisk appears next to the saved selection indicating that it is now the default Default settings remain in place when the printer is reset or switched OFF Accesses color coded alternate functions of bottom row control panel keys Hold down while pressing an associated key Cycles through menus returning to at the end of the cycle unless a problem is encountered When an option is added to the printer PostScript for example a menu for that option appears in the sequence see Control Panel Menus in this chapter Reset Resets the printer displays amp T Clears the page and active I O buffers En and makes the current control panel values the defaults see Menu of Resets at the end of this chapter Cycles through the selected menu items Menu items vary depending on options installed and configuration of other menu choices Blows the printer to resume printing after a printer message Such as 44 has placed it off line Clears most printer messages such as s manual feed requests and places the printer back on line A ora Press to step through menu items Hold down __ to scroll through items Press or hold down to move through items in reverse order MO9IAJ9AQ Sunesado Operating Overview 3 5 NOTE Table 3 3 Settings and D
48. to network if Contact network administrator for applicable and verify network assistance operation Troubleshooting 7 3 Punoouse qnoa L Paper Path and Components DC controller PCA Delivery unit paper sensor signal OPASEN Delivery roller Cassette paper sensor signal CPASEN Main motor drive signal MOTON Registration clutch drive signal RPF Pick up unit paper sensor signal RPASEN Cassette pick up clutch drive signal CPF Main motor Cassette size sensing signal UPCASO UPCAS3 Multi purpose tray paper sensor signal MPASEN T a gt E S 2 D o gt T v o 2 2 o a B x 2 a gt S 5 o 5 a x 3 Intermediate plate pressurization solenoid drive signal LIFTSL Intermediate plate pressurization detection signal LIFTSNS Transfer charging roller Cassette pick up roller SW201 f f Multi purpose tray Sw202 Cassette pick up roller SW203 Intermediate SW204 plate Lower Cassette Exit Sensor Paper Out Sensor Lower Cassette Pickup Rollers Figure 7 1 Paper Path and Components 7 4 Troubleshooting Printer Message Troubleshooting The control panel alphanumeric display provides the following information Status Messages refer to Table 7 1 Service and Error Messages refer to Table 7 2 Clearable Warnings refer to Table 7 3 NOTE Before troubleshooting the printer cycle the power to the printer to see if the error p
49. 1 19 remanufactured assemblies 1 16 removal and replacement 6 1 6 45 anti static brush 6 42 card cage 6 16 cartridge guide 6 36 cassette pickup roller assembly 6 37 control panel 6 8 cover and doors 6 8 DC controller PCA 6 19 delivery gear assembly 6 35 disk accessory 6 6 drum driveassembly 6 24 exhaust fan FM1 6 13 foot assemblies 6 44 front door assembly 6 33 fuser door 6 31 fuser inlet guide 6 27 fusing assembly 6 26 HVPS PCA 6 14 laser scanner assembly 6 20 main drive assembly 6 22 main motor M1 6 21 memory upgrade 6 5 MP drivegears 6 30 MP guide plate assembly 6 29 MP tray 6 32 paper guide 6 43 paper guide plateassembly 6 28 power supply unit 6 18 rear cover 6 12 rear exhaust fan FM2 6 17 registration roller 6 39 registration roller guide plate 6 41 separation pad 6 38 sidecovers 6 11 static charge eliminator 6 10 strategy 6 3 transfer roller assembly 6 25 upper and lower delivery roller assemblies 6 34 upper cover 6 9 repair philosophy 1 16 repetitive defects 7 25 repetitive image defect ruler 7 36 replaceable cables 8 7 required tools 6 4 requirements environmental 2 4 site 1 6 2 1 2 4 space 2 4 reset cold 3 23 7 7 1 0 3 24 I Os 3 24 menu 7 7 options 3 24 simple 3 23 reset key 3 5 reset to save 7 7 resettable circuit breaker 5 5 resetting printer 3 23 Resolution selection 3 10 Resolution E nhancement technology 1 3 5 11 described 5 11 self test information 3 20 status 3 20 RESOLUTION
50. 3 Replace DC Controller PCA Switch the printer OFF and then back ON If the error continues 1 Check cabling between Main Motor and DC Controller PCA 2 Replace the Main Motor 3 Replace the DC Controller Switch the printer OFF and then back ON If the error continues 1 Check cabling between fan motor s and DC Controller PCA 2 Replace the faulty fan motor 3 Replace the DC Controller Bunoouse qnoa L Switch the printer OFF and then ON If the error is still present 1 Verify that the SIMM board is correctly installed 2 Switch the printer OFF and remove the SIMM board Switch the printer back ON If the error message does not appear replace the faulty SIMM 3 If the message remains repeat the process for each remaining SIMM to isolate 4 If message remains with no SIMMs present replace the Formatter PCA Switch the printer OFF and then ON If the error is still present 1 Verify that the SIMM board is correctly installed 2 Switch the printer OFF and remove the SIMM board Switch the printer back ON If the error message does not appear replace the faulty SIMM 3 If the message remains repeat the process for each remaining SIMM to isolate 4 If message remains with no SIMMs present replace the Formatter PCA Switch the printer OFF then back ON If the error persists replace the Formatter PCA Press then check the control panel settings for changes print a self test Pr
51. 3 clearable warning message 7 15 WM J OB 600 LGL clearable warning message 7 15 WM MEM CNFIG N A dearable warning message 7 15 writing process 5 21 Index 9 Index 10
52. 3 11 dutches 5 8 DC controller 5 7 voltages 5 7 clutches and sensors 5 26 cold reset default 3 15 3 18 documenting 3 23 performing 3 24 7 7 printer memory 3 23 reinitializing control panel 7 7 resetting J etDirect configuration 3 23 common hardware 8 7 compressed print 7 30 Compuserve Forum HP 1 21 configuration menu 3 11 default settings 3 11 MP TRAY 7 8 configuration menu items AUTO CONT 3 11 CLR WARN 3 11 LOCK 3 11 LOW TONER 3 11 MP TRAY 3 11 consumables ordering 8 4 printer 1 16 Index 1 CONT SELF TEST test menu 3 19 CONT SELF TEST test menu tem 3 14 context sensitive switching PJ L 5 15 continuekey 3 5 Continuous Self Test selection 3 14 stopping 3 14 control panel 1 3 3 5 3 8 3 20 assembly 6 8 configuration menu 3 11 CONT SELF TEST 3 19 cover 6 8 defaults 3 5 3 6 5 11 described 5 16 features 1 3 1 11 3 3 3 5 3 7 3 8 3 12 3 14 3 17 3 20 5 11 FONT SOURCE 3 9 indicator lights 3 4 interfaces 5 16 job menu 3 10 keys 3 4 3 5 5 11 layout 3 3 lock and password 3 20 memory configuration menu 3 12 menu map 3 7 menus 3 7 messages 5 16 5 27 7 6 7 9 7 15 MEt 5 11 MP TRAY 7 8 options status 3 20 parallel menu 3 13 PCA 5 16 6 8 PCL menu 3 9 power save 5 11 printing menu 3 8 PS CONFIG PAGE 6 6 PWRSAVE 3 15 removal and replacement 6 8 selecting items 3 7 self test 3 17 self test for printer errors 7 6 self test information 3 20 setting defaults 3 6 settings 5 11 5 15
53. 300 809 A 6 Parts Index Table A 1 Alphabetical Parts List continued Description Screw Machine M3X8 XB6 7300 809 Screw Machine M4X8 XB1 2400 809 110 Screw Machine M4X8 XB1 2400 809 89 Screw Machine M4X8 XB1 2400 809 110 co 00 114 Screw Pan Head Self tap XB4 7401 007 Screw Stepped M3 Screw Stepped M3 102 Screw Stepped M3 104 Screw Stepped M3X4 103 Screw Tap Binding Head M4X8 111 Screw Tap Binding Head M4X8 111 Screw Tap Binding Head M4X8 111 Screw Tap Binding Head M4X8 xB4 7400 809 89 111 Screw Tap Binding Head M4X8 111 Screw Tapping Trus Head C Screw TP MEXT6 n5 Screw TP MGX m Screw TP M3X6 XA9 0267 000 89 106 Screw TP MBXG 106 Sacw TusHewa waster ET eo o Screw w washer M3X8 XA9 0253 000 8 5 105 Shaft Gear A RB1 1422 000 faa 8 A A n ke o co A 29 I z a a Parts Index A 7 V xepu Sued Table A 1 A 8 Parts Index Alphabetical Parts List continued Description Shutter Laser Slider Small Interface PCA Spring Compression Spring Leaf Spring Tension Spring Tension Spring Tension Spring Tension Spring Tension Spring Tension Spring Tension Spring Tension Springs Separation Pad Stopper Registration Sub Transfer Assembly Transfer Roller Holder Assembly Upper Cover Assembly Washer Wave rozas ss 15 18 11 17P 17 17Q 17R 25 178 26 17T 18 20 19 30
54. 4 to 105 g m2 A3 Optional Cassettes Legal C3162A 250 Sheets 17 to 28 pounds T only 64 to 105 g m2 B4 C3163A 250 Sheets 17 to 28 pounds JIS B4 only 64 to 105 g m2 B5 C3164A 250 Sheets 17 to 28 pounds JIS B5 only 64 to 105 g m2 Lower Cassette C3760A 500 Sheets 17 to 28 pounds Adjustable for letter legal 64 to 105 g m2 ledger A4 A3 and JIS B4 1 4 Product Information Figure 1 1 Identification Model and Serial Numbers The model number and serial numbers are listed on identification labels located on the rear of the printer The model number is alphanumeric such as C3141A for the HP Laser et AV printer Theserial number contains information about the Country of Origin the Revision Level the Production Code and production number of the printer Therear labels also contain power rating and regulatory information as shown in Figure 1 1 MEA C3141A HEWLETT This product conforms with CDRH radiation US C3141A parimana sen rR ca t Se Neco POWER RATING Doa VD eibi BOISE IDAHO 83714 U S A SOMN 30 He Ta senat no XXXXXXXX Made in Japan d This device complies with Part 18 of the FCC Rules E tererence an 2 this dev interference received includir ice must accept any ing interference that may cause undesired operation HEWLETT This product conforms with CORH radiation Wins C3141A mme iad A Crk cir EWLETT PACKARD POWER RATING 100 120V 50 60 Hz
55. 5 Fusing Assembly aoaaa llle 6 26 Fuser Inle Guide o e a 6 27 Paper Guide Plate Assembly ooa a 6 28 MP G uidePlate us doa ee ae he ee ee ee OR gd 6 29 MPDriveGears 2 aaa ee 6 30 FUSER DOOR a gee Waele Gee sb oe Bee ae BP ee EDU eus 6 31 MP Tray 2424 ek eee RE Eee ed bel Fox X E be eee eRe 6 32 Front Door Assembly 24 suce bo bbe ye Be eae Se a 6 33 Removal and Replacement 6 1 Delivery Area Assemblies 0 0 e 6 34 Upper and Lower Delivery Roller Assemblies 6 34 Delivery Gear Assembly 0 llle 6 35 Cartridge Guide o e e a 6 36 Cassette Pickup Roller Assembly a 6 37 Separation Pad rr 6 38 Registration Roller 0 eee eee 6 39 Registration Roller Guide Plate 0 6 41 Anti StaticBrush 0 o e e 6 42 Paper Guide su russe oe poe A A 6 43 BottomAssemblies llle 6 44 FootAssemblies llle 6 44 6 2 Removal and Replacement Removal and Replacement Strategy 9 Du This chapter documents removal and replacement of major assemblies 3 3 DO Replacement is generally the reverse of removal Occasionally information 5 is included to provide direction for difficult or critical replacement 3 fo procedures zi WARNING Unplug the power cord from the power outlet before attempting to service the printer If thi
56. 6 33 8 17 front door assembly 6 33 fuser door 6 31 fuser inlet guide 6 27 fusing assembly 6 26 MP drive gears 6 30 MP guide plate 6 29 MP tray 6 32 paper guide assembly 6 28 transfer roller assembly 6 25 front door assembly removal and replacement 6 33 front door components 8 14 8 16 FS DISK FAILURE status message 7 9 functional overview 5 1 5 30 functions basic printer 5 3 fuser door removal and replacement 6 31 fuser inlet guide removal and replacement 6 27 fusing assembly removal and replacement 6 26 fusing process 5 24 G guidelines media selection 1 8 H half self test check purpose 7 32 half self test functional check 7 32 hardware common 8 7 High Speed selection 3 13 HIGH SPEED parallel menu item 3 13 high voltage power distribution 5 6 high voltage power supply PCA 5 4 5 6 DC controller 7 21 7 23 density adjustment 7 26 high voltage connectors 7 21 7 23 7 34 microswitch SW501 5 6 pickup unit senor 7 10 high voltage power supply check 7 34 HP AUDO TIPS 1 20 HP CompuServe Forum 1 21 HP FIRST Fax Information Retrieval Support Technology 1 20 HP s Distribution Center 1 16 HPD HP s Distribution Center 1 16 1 19 HV system 7 34 HVPS PCA removal and replacement 6 14 I 1 0 reset 3 24 self test information 3 20 size selection 3 12 Timeout selection 3 10 1 0 buffering self test information 3 20 I O resets 3 24 identification labels 1 5 identification printer 1 5 ima
57. Controller PCA 0 o 6 19 Laser Scanner Assembly 6 20 Main Motor o 0 000000 eee ees 6 21 Main Drive Assembly Removal lof2 6 22 Figure 6 17 Figure 6 18 Figure 6 19 Figure 6 20 Figure 6 21 Figure 6 22 Figure 6 23 Figure 6 24 Figure 6 25 Figure 6 26 Figure 6 27 Figure 6 28 Figure 6 29 Figure 6 30 Figure 6 31 Figure 6 32 Figure 6 33 Figure 6 34 Figure 6 35 Figure 6 36 Figure 6 37 Figure 6 38 Figure 7 1 Figure 7 2 Figure 7 3 Figure 7 4 Figure 7 5 Figure 7 6 Figure 7 7 Figure 8 1 Figure 8 2 Figure 8 3 Figure 8 4 Figure 8 5 Figure 8 6 Figure 8 7 Figure 8 8 Figure 8 9 Figure 8 10 Figure 8 11 Figure B 2 Figure B 3 Figure B 4 Figure B 5 Figure C 1 Main Drive Assembly Removal 2 of 2 6 23 Drum Drive Assembly 6 24 Transfer Roller Assembly o 6 25 Fusing Assembly o 0002 eee 6 26 Fuser Inlet Guide o o 6 27 Paper Guide Plate Assembly 6 28 MP GuidePlate 0 o e 6 29 MP Drive Gears e e 6 30 F ser DOoor cea e a ee A ee ana e 6 31 M PSE Ray Ca so Ae ak Seve ca too acd APE Dae te eek ae 6 32 Front Door Assembly o a 6 33 Upper and Lower Delivery Roller Assemblies 6 34 Delivery Gear Assembly o 6 35 CartridgeGuide o 6 36 Cassette Pickup Roller As
58. Controller to Laser Scanner Assembly 2 Replace Laser Scanner Assembly 3 Replace DC Controller PCA Make sure the SIMM board is installed correctly Replace the SIMM that caused the error NOTE If no replacement SIMM is available press o o to continue The SIMM that caused the error will not be configured If the SIMM device has more than one bank of memory the good banks will be configured Table 7 2 55 ERROR 57 SERVICE 58 x SERVICE 61 x SERVICE X 0 4 62 x SERVICE X 0 6 63 through 67 SERVICE 68 ERROR 68 SERVICE or 68 READY SERVICE Service and Error Messages continued Communication error between DC Controller and Formatter PCA Main motor failure Fan motor failure x21 FM1 2 FM2 3 FM3 The printer encountered a parity error when accessing the RAM memory SIMM in slot X If X 0 the slot with the defective SIMM could not be determined The printer identified a problem while checking its memory X refers to the device the printer was checking when it encountered the error 0 Internal Memory 1 4 SIMM Slot 6 Cache Internal RAM scan buffer Dynamic RAM controller or miscellaneous interface hardware error Nonvolatile memory NVRAM error The nonvolatile memory NVRAM is full Switch the printer OFF and then back ON If the error continues 1 Check cable from DC Controller to Laser Scanner Assembly 2 Replace Laser Scanner Assembly
59. Engine Test Button Location osoo a 7 31 Printing an Engine Test aoaaa a 7 31 Half Self Test Functional Check aa 7 32 Drum Rotation Functional Check 7 33 High Voltage Power Supply Check 0 0 7 34 PaperCurl aces dace doe Aue ee Ge eee ey E we ws 7 35 Troubleshooting Tools 2 0 00 eee es 7 36 Repetitive I mage Defect Ruler a 7 36 Wiring Diagrams o a 7 37 Troubleshooting 7 1 7 2 Troubleshooting Preliminary Troubleshooting 1 Disconnect printer from network if applicable Ensure that toner cartridge is installed front door is closed and AC power is applied Verify power distribution by Troubleshoot power supply listening to fans Main Motor and distribution system Laser Scanner Motor e Check all connectors e Check CB101 in power supply unit e Check F101 in power supply unit 4 Check for control panel messages Refer to Printer Message Troubleshooting later in this chapter Perform Engine Test If there is an image problem see Image Formation Troubleshooting later in this chapter If no page is printed troubleshoot as a DC Controller problem Perform Control Panel Self Test If there is an image problem refer to Image Formation Troubleshooting later in this chapter If no page is printed troubleshoot as a Formatter problem 7 Verify proper software drivers have Install drivers been installed Connect printer
60. G UP status message 7 6 04 SELF TEST status message 7 6 05 SELF TEST status message 7 6 06 DEMO PAGE status message 7 7 06 PRINTING TEST status message 7 6 06 TYPEFACE LIST status message 7 6 07 RESET status message 7 7 08 COLD RESET status message 7 7 09 RESET ALL 1 0 status message 7 7 09 RST ACTIVE I O status message 7 7 10 RESET TO SAVE status message 7 7 12 PRINTER OPEN status message 7 7 13 PAPER J AM status message 7 8 14 NO TONER CART status message 7 8 16 TONER LOW status message 7 8 18 MIO INIT status message 7 9 18 MIO NOT READY status message 7 9 20 MEM OVERFLOW service or error message 7 11 21 PRINT OVERRUN service or error message 7 11 22 MIO ERROR service or error message 7 11 40 MIO ERROR service or error message 7 11 41 3 PAPER ERROR service or error message 7 11 51 ERROR service or error message 7 12 52 SERVICE service or error message 7 12 53 XY ZZ ERROR service or error message 7 12 55 ERROR service or error message 7 13 57 SERVICE service or error message 7 13 58 x SERVICE service or error message 7 13 61 x SERVICE service or error message 7 13 63 through 67 SERVICE service or error message 7 13 68 READY SERVICE service or error message 7 13 68 SERVICE service or error message 7 13 70 or 71 ERROR service or error message 7 14 A AC power distribution 5 5 circuitry 5 5 accessories user installable 6 5 accessories and sup
61. G5 1562 000 12 E hv e A co A wo Multi purpose Tray Assembly 220 240V RG5 1563 000 12 Option Cable Assembly 11B Pad Separation 12 Pad Sutter misso s 5 Panel Rear 5 Paper Guide Plate Assembly 14 Paper Guide Plate Assembly 17 Pickup Roller Assembly Pivot Plate RB1 1325 000 89 Plate Contact Transfer Rrso326 000 89 z Plate Rear Shield RB1 5446 000 4 Pate Rod Le II 7 8 8 10 Plate Stop Clutch RB1 5442 000 Plate Stop Clutch R RB1 1292 000 Power Supply Assembly 100 115V RH3 2150 000 feo 11 gt m Parts Index A 5 V xepu Sued Table A 1 Alphabetical Parts List continued Description Power Supply Assembly 220 240V RH3 2151 000 59 Rack RA2 0298 000 Rail Slide Left RB1 5558 000 Rail Slide Right RB1 5557 000 A m BA o o Registration Roller Assembly Metal RG5 0194 000 15 Registration Roller Assembly Rubber 16 Retaining Ring e type 116 Retaining Ring e type 117 Retaining Ring e type 118 Retaining Ring e type 119 Retaining Ring e type 119 Retaining Ring e type xD2 1100 642 86 Retaining Ring e type 120 Retaining Ring e type 120 Retaining Ring e type 121 Right Foot Assembly 10 T Screw BHSX6 S Derzsoe 86 108 Screw M3X25 XA9 0375 000 so 107 Screw Machine Trus Head M3X14 XB1 2301 407 Screw Machine Trus Head M3X25 XB1 2302 507 109 Screw Machine M3X8 XB6 7300 809 Screw Machine M3X8 XB6 7
62. HP FIRST at one of the following numbers U K 0800 96 02 71 Netherlands 06 0222420 Belgium Dutch 078 111906 Germany 0130 810061 Switzerland German 155 1527 Austria 0660 8128 For English service outside the above countries 31 20 681 5792 1 20 Product Information HP CompuServe Forum CompuServe members can download a variety of support materials induding 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 North American Response Center NARC The North American Response Center NARC is available for technical support to assist service technicians The NARC can be reached at 1 800 544 9976 between 7 00 A M and 6 00 P M Mountain Standard Time Monday Tuesday Thursday and Friday On Wednesdays the office closes at 4 00 P M Other Areas Outside of North America and Europe contact your local HP sales office for assistance in obtaining technical support Product Information 1 21 L uoneuuoju JonpoJud NOTE Warranty Statement Warranty This warranty gives specific legal rights There may also be other rights which vary from area to area Refer to Appendix E in the User s Manual for further warranty information One Year Return to HP Authorized Repair Station H
63. Lights MICE o indicator Ready Ready to print UN Print job in progress Let job finish printing Not ready to print See display panel message On Line Ready to receive data M Going off line Printer is off line Access other keys or press to place printer back on line Form Feed Data still in print buffer Take printer off line press o press to place printer back on line Buffered data is printing No buffered data in printer Control Panel Keys You must takethe printer off line to use control panel keys except for the MP Paper Size and keys related to its operation Each key in the top row has a singlefunction Three keys in the bottom row have more than one function The primary function name of each key appears above the key The alternate function name of each key appears below the key Thesealternate function names are color coded to match the key which you must hold down while selecting an alternate function You can rapidly scroll through some selections by holding down the key 3 4 Operating Overview Table 3 2 Control Panel Keys uris the state of communication between computer and printer either on on line or off off line For the printer to receive data both the On Line and Ready indicator lights must be lit Prints any data remaining in the page buffer Does not send a blank sheet of paper through the printer MP Paper Size Only active when MP Tray is set to cassette
64. P Laser et 4MV control panel The NetWare frame type is displayed on the self test page To manually configure Novell NetWare parameters 1 Press until appears 2 Pres until appears 3 Pres appears 4 Press 3 6 appears 5 Toconfigurethe Novell NetWare protocol Press to select one of these frame types Table B 1 Novell NetWare Frame Types on an HP JetDirect Ethernet Card AUTO default All listed Novell frame types will be allowed EN 8023 Limit frame types to IPX over IEEE 802 3 frames All others will be counted and discarded EN II Limit frame types to IPX over Ethernet II frames All others will be counted and discarded EN 8022 Limit frame types to IPX over IEEE 802 2 frames All others will be counted and discarded EN SNAP Limit frame types to IPX over SNAP with Ethernet frames All others will be counted and discarded 6 Press tosavetheselection An asterisk appears 7 If other protocols will be used continue with the next section Otherwise skip to Disable Network Protocols at the end of this appendix B 6 I O Information amp UNH 11 Configuring TCP IP Parameters The HP J etAdmin utility for UNIX sold separately may be used to configure TCP IP parameters If you do not have the HP J etAdmin utility for UNIX or you are using a UNIX system other than HP UX Solaris or SunOS you may use the control panel of the printer to configure these TCP IP parameters manually Usage
65. PCA Include the error message and code with the defective PCA and return for evaluation 7 14 Troubleshooting Clearable Warnings A dearable warning message indicates that the printer changed settings in order to completethe printjob A dearable warning usually occurs when a transient condition such as an invalid or uninstalled personality or lack of memory causes a temporary change A number of clearable warnings can appear while printing ajob The printer will remain on line while the message is displayed Clear the message by pressing ltis possible to eliminate the need to respond to clearable warning messages see Configuration M enu in Chapter 3 Table 7 3 Clearable Warning Messages Message Meaning WO JOB 600 A4 Because the job parameters of print resolution and page protection could not be met with the available memory the job was printed at a print resolution of 600 dpi but reduced to a page protect setting of A4 W1 IMAGE ADAPT The printer received a graphics print file that was too complex to print at the requested print resolution Check the printout for loss of data or print quality NOTE if this warning occurs frequently install additional memory W2 INVALID PERS The job was not printed because you requested a personality such as PostScript that is not installed Install the personality that matches the personality of the files you are sending together with enough memory to support that person
66. R PAPER SKIP DEMC BIG DATA OFF DIAGNOSTICS OFF ERR LOG 5 570 5511AH0080 LETTER FALSE Internal CONFIG MENU MP TRAY LOCK CLR WARN AUTO CONT LOW TONER MEM CONFIG MENU IO BUFFER RESRCSAVE JOB MENU RESOLUTION PERSONALTY PWRSAVE IO TIMEOUT PAGEPROTCT MIO MENU NETWORK TEST MENU SELF TEST CONT SELF TEST PCL TYPE LIST PCL DEMO PAGE PS CONFIG PAGE PS TYPEFACE LIST PS DEMO PAGE MIO NOVELL ETHERNET 02 3 PIRMWARE REVISION PCL Memory Information Total Memory 12 MBytes A 01 00 Available Memory 7 18 MBytes NODE ADDRESS 080009376268 PORT SELECT 10BASE T NETWORK NO 0P2767C8 FRAME TYPE ETHERNET 802 3 asreco22 ETHEREET 502 2 NETWORK STATISTICS PACKETS RECEIVED BAD PACKETS RCVD BODE NAME FRAMING ERRORS RCVD PACKETS TRANSMITTED UNSENDABLE PACKETS BAIRD S ARRAKIS QUEUE SERVER xMIT COLLISIONS XMIT LATE COLLISIONS FILE SERVER NAME RETRANSMISSICNS NER TECH MKT Serial Number 5511AH0080 RET MEDIUM Formatter Number RAM size 12 MBytes Page Count 570 Firmware Datecode Control Panel Lock Status Control Panel Password Status Paper Trays MP TRAY LETTER Installed Options Disk Installed Personalities PCL 19940419 POSTSCRIPT 19940414 Adobe PostScript Installed PostScript Disk HP C3295A JP94150049 K2A4A059 PostScript Disk Lock Status DISABLED 19940419 DISABLED DISABLED PC TRAY 11x17 1 0 Buffering 200K bytes Allocated of
67. ROITUS 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 Laser et s 4M and 4MV 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 erikoisty kaluja VARO Mik li kirjoittimen suojakotelo avataan olet alttiina n kym tt m lle lasers teilylle laitteen ollessa toiminnassa l katso s teeseen VARNING Om laserprinterns skyddsh lje ppnas d apparaten r i funktion uts ttas anv ndaren f r osynlig laserstr lning Betrakta ej str len Tiedot laitteessa k ytett v n laserdiodin s teilyominaisuuksista Aallonpituus 777 795 nm Teho 5 mW Luokan 3B laser C 2 Regulatory Information NOTE NOTE Toner Safety In case of toner spills skin and clothing are best cleaned by removing as much toner as possible with a dry tissue then washing with cold water Hot water causes toner to permane
68. SIMM SIOS se deron e Gea RE a P e UR he es ck 5 14 Non Volatile Memory NVRAM o 5 14 Disk AGGESSOFY uc eo o or ia dk a ae 5 14 Memory Enhancement technology MEt 5 15 Page Protech cuca cueca oe dk ek WE ia a a A a 5 15 PJ L Overview rs 5 15 PML caves So a ek eke NE 5 15 Functional Overview 5 1 Control Panel sv ac aa a Ye a 5 16 Interface PCA os orcas ok RUE ee xo OR G 5 16 Image Formation System 0 e e 5 17 Toner Cartridge oso ba Be eK kb xx RR 5 18 Toner Cartridge High Voltage Power Supply Contacts 5 18 ThePhotosensitiveDrum 2er 5 18 Drum Cleaning 3 xu ox PRORA RE e ee A te ing 5 19 Drum Conditioning lens 5 20 Image Writing uere n REPRE x Re DU a p edes 5 21 ImageDeveloping les 5 22 Image Transferring o o e e 5 23 Mage FUSING igor a e a xx 5 24 Paper Feed System o a 5 25 Paper Path zz isc e ro ee hbo Ace eg 5 25 Clutches and Sensors 00000 eee eee 5 26 Printing from the Paper Cassette lll rss 5 27 PrintingfromtheMP Tray lens 5 27 Printing from the Optional Lower Cassette 5 27 PaperJamDetection 5 27 Basic Sequence of Operation o e 5 28 5 2 Functional Overview Basic Printer Functions This chapter presents a generalized functional overvi
69. Service Manual HP Laser et AV AMV C3141A C3142A Copyright Hewlett Packard Company 1994 All Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Publication number C3141 90929 First edition J uly 1994 Printed in USA Hewlett Packard Company 11311 Chinden Boulevard Boise Idaho 83714 Warranty The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties or merchantability and fitness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damaged in connection with the furnishing performance or use of this material WARNING Electrical Shock Hazard Toavoid electrical shock use only supplied power cords and connect only to properly grounded 3 hole wall outlets NOTE CAUTION WARNING Conventions This manual uses the following conventions Color is used to emphasize items which are important to the material under discussion The names of major printer parts and assemblies are Capitalized Bold is used for emphasis particularly in situations where italic type would be confusing Italic typeis used to indicate related documents or emphasis t
70. Table A 2 Numerical Parts Index Numerical Parts List mum eme 107 9 suene seme es wee es _ roz seme 9 5 meom wer rarse 98 5 mee foom fee Parts Index A 9 V xepu Sued Table A 2 Numerical Parts List continued COIN ees 17 ET RB1 1292 000 RB1 1294 000 RB1 1317 000 RB1 1318 000 RB1 1336 000 Cover Cable 16 RB1 1343 000 RB1 1344 000 RB1 1346 000 RB1 1349 000 RB1 1350 000 RB1 1352 040 RB1 1367 000 RB1 1380 020 RB1 1385 000 RB1 1386 000 RB1 1399 000 RB1 1400 000 RB1 1411 000 RB1 1421 000 RB1 1422 000 RB1 1423 000 RB1 1424 000 10 RB1 1429 000 11 RB1 1438 000 RB1 2748 000 RB1 5442 000 Plate Stop Clutch 10 RB1 5445 000 Plate Mounting Right 8 8 11 RB1 5446 000 Plate Rear Shield 4 A 10 Parts Index Table A 2 Numerical Parts List continued me COS Pe RB1 5454 000 RB1 5457 000 RB1 5459 000 RB1 5460 000 RB1 5467 000 RB1 5489 000 RB1 5490 000 RB1 5552 000 RB1 5557 000 RB1 5558 000 RB1 5559 000 RB1 5562 000 RB1 5563 000 RB1 5575 000 RB1 5786 000 RB1 5789 000 RF5 0302 000 RF5 0326 000 RF5 0331 000 RF5 0395 000 RF5 0396 000 RF5 0397 000 RF5 0400 000 RF5 1141 000 RF5 1142 000 RF5 1150 000 RF5 1165 000 RF5 1166 000 RF5 1173 000 RF5 1176 000 CET i ET E CT i E E 5 Panel Left 8 2 3 s I E CTN EN E iver Sumo enn es x Plate Cover 8 3 Parts Index A 11 V xepu Sued Table A 2 Numerical Parts List contin
71. a micro fine particle filter If toner gets on your dothing use cold water to remove it Hot water sets toner stains into fabric Functional Overview Chapter Contents Basic Printer Functions 00000002 eee 5 3 Power Supply System noaa ee 5 4 AC Power Distribution e 5 5 Overcurrent OvervoltageProtection 5 5 High Voltage Power Distribution lr sns 5 6 Toner Cartridge Microswitch SW501 o 5 6 Print Density Adjustment o e 5 6 DC Controller System o o e e e 5 7 DC Power Distribution 0 e e 0 5 7 Laser and Scanner Drive o e e 5 8 Paper Motion Monitoring and Control 5 8 Clutches s eaae a ER RRO RA eS 5 8 Engine Test Microswitch SW7001 o 5 8 MOOS es isis a a BS 5 9 Formatter System nu uos a gona ko a oe ee A 5 10 Power Save o 5 11 Resolution Enhancement REt 5 11 EconoMode lll ees 5 12 Input Outp t 4 x uc xod foe ae Dk A Yo GR ee xs 5 13 Parallel Interface llle 5 13 Modular I O MIO o o e e 5 13 LocalTalk I O u a i pa eo esc a ee 5 13 CPU 20 aos ii led cec ped oie seid a 5 13 Printer Memory lees 5 14 Read Only Memory ROM ee es 5 14 Random Access Memory RAM o o 5 14
72. a uniform electrical charge on drum Writing laser strikes surface of drum to create latent image Development formation of the toner image on drum Transfer charge to transfer the image to paper Fusing heat and pressure to produce a permanent image The purpose of the Half Self Test Check is to determine which process is malfunctioning Perform the test as follows 1 Initiate a printer control panel self test 2 Open theFront Door 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 3 Remove the toner cartridge 4 Open thetoner cartridge s drum shield to view the drum s surface If a dark and distinct toner imageis present on the drum s surface assume that the first four functions of the electrophotographic process are functioning deaning conditioning writing and developing see Chapter 5 and troubleshoot the failure as a transfer or fusing problem If NO imageis present on the photosensitive drum perform the following functional checks 1 Drum Rotation Functional Check 2 High Voltage Power Supply Check 7 32 Troubleshooting NOTE 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
73. able in this section When options such as the PostScript language are installed in the printer new menus or menu items automatically are added in the appropriate menus Table 3 4 Control Panel Menu Map PRINTING MENU PCL MENU E JOB MENU CONFIG MENU MEM CONFIG PARALLEL MENU TEST MENU B copes FONT SOURCE SOURCE PRT PS ERRS RESOLUTION IMPTRAY TRAY HOBUFFER BUFFER HIGH SPEED SPEED SELF TEST PAPER FONT NUMBER JAM RECOVER PERSONALITY LOCK 10 SIZE ADV FNCTNS CONT SELF TEST ORIENTATION PITCH or PWR SAVE CLR WARN RESRCSAVE PCL TYPEFACE PT SIZE LIST FORM SYM SET IO TIMEOUT AUTO CONT PCL MEM PCL DEMO PAGE MANUAL FEED PS CONFIG PAGE PS TYPEFACE LIST ECONOMODE PS DEMO PAGE m LOW TONER PS MEM You can change these menu items either from a software You can change these menu items only from the control panel application or from the control panel Shaded items appear when the PostScript option is installed Additional menu items may appear if options are installed such as MIO cards These items will appear if sufficient memory is available The Lock function is only available if MP Tray Cassette MO9IAJ9AQ Dunejedo To select a menu item Pres totakethe printer off line Pres repeatedly until the menu you want appears Press repeatedly until the item you want appears Press repeatedly or hold down to scroll until the setting you want appears Pres to save your selectio
74. able unit FRU in the printer Exploded view drawings are accompanied by complete part number tables A Parts Index All parts are sorted and cross referenced here by part number and name B 1 0 Information This appendix contains cabling and pin out information for parallel and Local Talk interfaces which are supported by the printer C Regulatory Information Here are required statements regarding RFI and laser safety Subject Index Usethe subject index to quickly locate any information in the manual List of Figures Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 1 5 Figure 1 6 Figure 1 7 Figure 2 1 Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 Figure 5 1 Figure 5 2 Figure 5 3 Figure 5 4 Figure 5 5 Figure 5 6 Figure 5 7 Figure 5 8 Figure 5 9 Figure 5 10 Figure 5 11 Figure 5 12 Figure 5 13 Figure 5 14 Figure 5 15 Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 6 7 Figure 6 8 Figure 6 9 Figure 6 10 Figure 6 11 Figure 6 12 Figure 6 13 Figure 6 14 Figure 6 15 Figure 6 16 Sample Model and Serial Number Labels 1 5 Front and Rear Side View 1 11 Rear and Left Side View 1 12 Front View with Front Cover Open 1 13 Internal Assembly Locations 10f2 1 14 Internal Assembly Locations 2 of 2 1 15 Sample 5 Page Coverage o o 1 17 Printer Space Requirements 2 4
75. ace Figure 6 22 callout 1 6 28 Removal and Replacement MP Guide Plate 9 The MP Guide plate is located adjacent tothe MP Pickup Roller assembly and requires prior removal of the Paper Guide Plate assembly 3 2 DO O lt CAUTION The springs on each end of the plate are under tension Be careful when 3 a releasing E fo 1 Using needle nosed pliers carefully release the tension on 2 springs Figure 6 23 2 Snaptheleft and right hinge retainers off the shafts on the bottom of the assembly Lift the MP Guide plate assembly up and out Figure 6 23 MP Guide Plate Removal and Replacement 6 29 MP Drive Gears The MP Tray Drive Gears are housed within the Front Door assembly directly under the Paper Guide Plate assembly NOTE The Drive Gear that is circled in Figure 6 24 requires prior removal of the Fuser Door See Figure 6 25 callout 2 1 Remove the Fusing Assembly and the Paper Guide Plate assembly see Figures 6 20 and 6 22 2 The gears are now free except large gear see note above Figure 6 24 MP Drive Gears To Reinstall Pay close attention to the shaft locations and diameters when reinstalling the gears 6 30 Removal and Replacement Fuser Door 9 The Fuser Door is accessed with the printer front door closed and the MP DI Tray open 2 g DO 1 Open the Fuser Door part way and press downward on the left end to g5 release 2 plastic retainer clips from the pins see Figure 6 25
76. age 7 8 toner safety C 3 tools required 6 4 top area assemblies 6 16 training media 1 19 transfer roller assembly removal and replacement 6 25 transferring process 5 23 transparencies 1 9 7 27 bad 7 27 MP tray 1 9 overhead 1 9 temperature specifications 1 9 transparency specifications 1 9 troubleshooting 7 1 7 42 messages 7 6 7 9 7 15 troubleshooting checks 7 31 troubleshooting flowchart 7 3 troubleshooting tools 7 36 troubleshooting preliminary 7 3 two way communication PJ L 5 15 typefaces internal 1 3 list 7 6 temporary 3 23 U upper and lower delivery roller assemblies removal and replacement 6 34 upper cover removal and replacement 6 9 user installable accessories 6 5 disk accessory 6 6 memory upgrade 6 5 optional lower cassette 6 7 V VCCI Statement J apan C 4 veritcal spacing 3 8 Ww WO J OB 600 A4 clearable warning message 7 15 W1 IMAGE ADAPT clearable warning message 7 15 W2 INVALID PERS clearable warning message 7 15 W3 J OB ABORTED clearable warning message 7 15 W8 J OB 600 OFF clearable warning message 7 15 W9 J OB 600 LTR clearable warning message 7 15 WAIT printer timing 5 28 warning messages 7 15 warranty 1 22 WD DISK NOT INIT dearable warning message 7 15 white stripes 7 24 wiring diagrams main 7 37 WM MEM FULL clearable warning message 7 15 WM CHK MEM CNFIG clearable warning message 7 15 WM J OB 300 clearable warning message 7 15 WM J OB 600 A
77. ality W3 JOB ABORTED The printer was forced to abort the print job because there is not enough installed memory to support the current printer language PostScript for example Install additional memory WD DISK NOT INIT The printer was unable to read the root directory from the disk Use the disk initialization utility to initialize the disk W8 JOB 600 OFF Because the job parameters of print resolution and page protection could not be met with the available memory the job was printed at a print resolution of 600 dpi and page protect was turned OFF W9 JOB 600 LTR Because the job parameters of print resolution and page protection could not be met with the available memory the job was printed at a print resolution of 600 dpi but reduced to a page protect setting of LETTER WM JOB 300 The job was printed at 300 dpi NOTE if this warning occurs frequently install additional memory WM JOB 600 A3 Because the job parameters of print resolution and page protection could not be met with the available memory the job was printed at a print resolution of 600 dpi but reduced to a page protect setting of A3 WM JOB 600 LGL Because the job parameters of print resolution and page protection could not be met with the available memory the job was printed at a print resolution of 600 dpi but reduced to a page protect setting of LEGAL WM MEM CNFIG N A The printer did not have enough memory when switched ON to support the previous settings for I
78. ansfer high voltage control signal 1 fHV3PV Transfer high voltage contro signal 2 fHV3CC Transfer high voltage control signal 3 HV3AI Transfer high voltage control signal 4 HV2DCCH L to turn developing low voltage bias DC ON However HV2DC must be L HV1PLS Primary high voltage AC oscillating pulse signal HV2PLS Developing bias AC oscillating pulse signal MOTRDY L when main motor is rotating correctly MOTON L to drive main motor 24V TT DC Controller Outputs 1 of 2 Troubleshooting 7 39 Exhaust fan FM1 Exhaust fan FM2 Intake fan FM3 Cassette pick up clutch Registration clutch Multi purpose tray pick up clutch Intermediate plate pressurization solenoid Figure 7 6 7 40 Troubleshooting Power supply unit J7009 1 3 2 J7012 1 3 2 24VS DC Controller PCA FUSE10ON L to tum fusing heater ON For both 100V and 200V systems FUSE2ON L to tum fusing heater ON Only FAN1 FNLCK1 Interface PCA J20M 1 7 5 J17M B8 J17F B8 1 A9 A9 A1 J7011 2 TT 5VA FNLCK3 24 V 1 J7011 4 3 Front cover connect PCA 1401 1 J7002 1 CPF 24V RPF 24V E 0 1 i DC Controller Outputs 2 of 2 IMPF ILIFTSL for 200V system Power supply detection L for 100V power supply system H for 200V power supply system H 24V to rotate at high speed
79. 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 8 Hewlett Packard Co Support Materials Europe Wolf Hirth Strasse 33 D 7030 B blingen Germany 49 7031 14 2253 sweibeig pue sued Contact your local HP Parts Coordinator for other local phone numbers Parts and Diagrams 8 3 NOTE Ordering Consumables Consumables and accessories such as those listed on Table 8 1 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 Contact your local HP Parts Coordinator for other local phone numbers Parts that have no reference designator or part number are nat field replacement parts and cannot be ordered through SMO 8 4 Parts and Diagrams NOTE Table 8 1 Accessories and Supplies The following items are available through your local authorized HP dealer To find a dealer near you or if your dealer is temporarily out of stock call the HP Customer Information Center 800 752 0900 Refer to Related Documentation in Chapter 1 for documentation and training media product numbers Accessories and Supplies Toner Cartridge C3900A Replacement toner cartridge Memory upgrades
80. b in the rear wall of the toner cartridge cavity adjacent to the high voltage contacts 3 Replace the DC Controller PCA Remove jammed paper see Clearing Paper Jams in the User s Manual The front door must be opened and closed again before pressing to resume The following are the most likely causes of repeated paper jam problems 1 Paper cassettes not correctly loaded refer to the User s Manual 2 Print media does not meet specs or is in poor condition refer to the Paper Specifications Guide 3 The printer needs cleaning refer to Chapter 4 4 Pickup Registration or Output rollers contaminated worn or damaged 5 Toner cartridge gears are worn or damaged try a different cartridge 6 Other paper path gears worn or damaged If no paper jams are found but the message persists false paper jams 1 Check paper jam sensor flags for sticking or damage Paper movement is monitored by 2 paper sensors PS 501 the Pickup Unit Sensor is located on the High Voltage Power Supply PCA high voltage power supply PCA pickup unit sensor PS401 is located on the small front door Unit Terminal PCA on the front door under the Fusing Assembly remove the Fusing Assembly to see 2 Replace the DC Controller PCA Table 7 1 Message 14 NO TONER CART 16 TONER LOW 18 MIO INIT 18 MIO NOT READY Status Messages continued The toner cartridge is missing or not installed correctly The toner cartridge i
81. bly Paper Cassette Parts and Diagrams 8 9 8 sweibeig pue sued Figure 8 2 NN Cs M d Covers and Doors 8 10 Parts and Diagrams Table 8 2 Covers and Doors WE Description Parts and Diagrams 8 11 8 sweibeig pue sued e o he 3 D iL Foot Assemblies 12 Parts and Diagrams 8 Table 8 3 Foot Assemblies Tre em CC CE Left Foot Assembly Parts and Diagrams 8 13 8 sweibeig pue sued Figure 8 4 Front Door Components Page 1 of 2 8 14 Parts and Diagrams Table 8 4 Front Door Components 1 of 2 Panno ow CT aa RA1 7563 000 RA2 0418 000 merece 1 CIC MEN EA RS5 0186 000 RA1 7636 000 CH105 XA9 0253 000 7 10 11 12 13 14 15 16 18 18 18 18 20 21 22 23 24 25 26 27 28 29 30 CH106 XA9 0267 000 CH115 XB6 7301 609 Screw TP M3X16 CH116 XD2 1100 242 Retaining Ring e type RG5 1420 000 Parts and Diagrams 8 15 8 sweibeig pue sued Figure 8 5 CH121 sw301 Y 4403 Front Door Components Page 2 of 2 8 16 Parts and Diagrams Table 8 5 Front Door Components 2 of 2 Paper Guide Plate Assembly Front Door Assembly Parts and Diagrams 8 17 8 sweibeig pue sued Figure 8 6 Output Components 8 18 Parts and Diagrams Table 8 6 Output Components Le em CC CE EE Face Down Delivery Assembly RG5 0200 00 6 FD Roll
82. by 120 Power Save Mode 38 Operating current requirements 1 6 Product Information Table 1 5 Acoustic Emissions Operation position per ISO 9296 Printing Lpa dB A Standby Lpa dB A Power Save Lpa dB A Bystander 1m per ISO 9296 Printing Lpa dB A Standby LPa dB A Power Save Lpa dB A Sound Power per ISO 9296 Printing LwAD Standby LwAD Power Save LwAD 6 6 bels A 4 9 bels A 4 4 bels A Product Information 1 7 L uoneuuoju J9NPOId NOTE CAUTION Media Selection Guidelines More detailed specifications arein the HP Laser el Printer Family Paper Specification Guide HP Part No 5002 1801 See Related Documentation and Training Media later in this chapter Paper Toachieve the best possible print quality and avoid paper jams follow these guidelines for selecting paper Use only copier grade paper that meets all specifications in the paper specification guide Avoid paper with embossed lettering perforations or texture that is too smooth or too rough Colored paper should be of the same high quality as white photocopy paper The pigments must withstand the fusing temperature of 392 F 200 C for 0 1 second without deterioration Do not use paper with a colored coating that was added after the paper was produced Pre printed forms must be printed with non flammable heat resistant inks that do not melt vaporize or release hazardous emissions when subjected to the fus
83. by the null symbol 1 Remove the Transfer Roller See Figure 6 19 2 Remove 5 machine shoulder screws Figure 6 20 callout 1 3 Pull outward on the edges of the Front Door assembly to release the shaft Figure 6 20 callout 2 4 Lift the Fusing assembly up and out Figure 6 20 Fusing Assembly To Reinstall CAUTION Make sure that the Protection Plate Figure 6 20 callout 3 is in place or damage to the toner cartridge drum will occur 6 26 Removal and Replacement Fuser Inlet Guide WARNING The Fuser Inlet Guide contains the anti static teeth They are VERY sharp The Fuser Inlet Guide is located inside the Front Door assembly just forward of the Transfer Roller NOTE Do not remove 2 screws indicated in Figure 6 21 by the null symbol 9 1 RemovetheTransfer Roller See Figure 6 19 2 Remove 3 screws washers on two end screws only Figure 6 21 callout 1 3 Lift the rear edge of the guide to clear locating pins Figure 6 21 callout 2 Push to the front while tilting the front edge upward to clear retaining tabs Figure 6 21 Locating Pin Retaining Tab Fuser Inlet Guide To Reinstall 1 To determine initial placement align the guide over the locating pins but do not snap them into place 2 While tilting the front edge downward to engage the retaining tabs push the guide to the rear and downward to snap over the locating pins CAUTION The 2 washers must be in place one on each oute
84. c Application Drivers EA L3 X 1 Shipped with printer English version part number is shown Other translations are available see your local HP Sales Office Network Printing for the Enterprise Video 5961 0650 Product Information 1 19 L uoneuuoju onpouJd 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 requires a touchtone phone HP AUDIO TIPS HP AUDIO TIPS is an interactive voice response system providing prerecorded answers to the most frequently asked questions by HP Laser et printer users Helpful System Maps to the HP AUDIO TIPS recordings are available by fax through HP FIRST HP FIRST HP FIRST Fax Information Retrieval Support Technology is a phone in fax service providing technical information for HP Laser et users as well as service personnel Receiving a fax requires a group 3 facsimile machine or fax card Service related information indudes Service notes HP Authorized dealers Application notes Product Data Sheets Material Safety Data Sheets MSDS 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
85. callout 1 i T 2 Rotate upward to nearly closed then slide the door assembly outward and 3 to the left to clear the gear on the right end Figure 6 25 callout 2 Figure 6 25 Fuser Door To Reinstall When reinstalling align the ring on the right end with the gear before tilting the door into place Figure 6 25 callout 2 Removal and Replacement 6 31 MP Tray To remove the MP Tray the printer front door must be closed and the MP Tray open 1 Grasp right and left edges of the MP Tray and squeeze inward to release retainer arms NOTE The plastic retainer arms are designed to pop out when snapped downward This requires a quick firm snapping action to free the MP Tray 2 Slidetray outward off the hinge pins see Figure 6 26 Figure 6 26 To Reinstall Slidethe hinge tabs over the plastic hinge pins and squeeze the retainer dips inward forcefully while lifting the door upward to close 6 32 Removal and Replacement WN CAUTION Figure 6 27 Front Door Assembly The Front Door assembly is removed as a single assembly and requires prior removal of the printer covers and the MP Tray Remove the MP Tray see Figure 6 26 Remove 1 screw Figure 6 27 callout 1 and remove F user Cable tray cover Unplug the F user Cable on the right side of the printer and remove 2 screws to release the cable tray from the printer chassis see Figure 6 16 callout 1 Remove the plastic cable shield already of
86. change len Contains a list of the ten most recent errors with the related page count le Prints the error log ma Clears the error log buffer 3 18 Operating Overview NOTE Testing the Printer When you run a self test the printer checks its internal controller and I O interface then prints a test page Y ou can review the self test printout to verify proper installation of such options as paper cassettes or personalities Printing a Self Test Page 1Press totakethe printer off line i appears 3 Pres until thetest you want to print appears 4 Pres toprintthetest 5 Pres to place the printer back on line When you select cGHT SELF TEST the printer prints self test pages continuously until you press Or Operating Overview 3 19 M IM AO Bunesado Understanding the Self Test Printout Figure 3 3 is a sample self test printout run from Service M ode Numbers in the sample printout match numbers in the key to the printout below The appearance of the self test printout varies depending on the options currently installed in the printer Self Test Printout Key Menu selections Lists selections in the order in which they appear in the control panel display Also indudes options such as PostScript and Modular I Os MIO information Reserved for MIO and network statistics For some installed MIO options this block of information can be as long as 20 lines and three columns
87. cs parallel interface to run at a slower speed compatible with older computers ADV FNCTNS ON Choosing amp enables bi directional parallel communication which allows the printer to send status readback OFF messages to the computer Setting advance functions to amp may slow personality switching Factory default Operating Overview 3 13 M IM AO Bunesado Test Menu Test Menu items can be selected only from the printer control panel You cannot change or override them from your software application See Testing the Printer later in this chapter for detailed information about running printer tests and interpreting their results Table 3 11 Test Menu Items When Tis displayed and you press the printer runs a self test during which it displays the message TEST and all control panel is are lit Durin the printing portion of the self test the message is displayed SELF TEST CONT SELF TEST Continuous Self Test PCL TYPE LIST PS TYPELIST PCL DEMO PAGE PS DEMO PAGE PS CONFIG PAGE 3 14 Operating Overview Prints continuous self test pages until you press or coo co Then the amp portion of the display blinks and several more pages print until the buffer clears Press when pages stop printing Prints a list of the typefaces and bitmapped fonts currently available in the printer both internal and accessory for PCL or Adobe PostScript print jobs Prints a page that il
88. ctly with the electrophotographic process Guide 2 Dirty Fusing Rollers Toner build up can cause Remove and inspect the Fusing Assembly for the print on a page to smear excessive toner build up Clean using alcohol 3 The Static Eliminator Strip is dirty or is not Clean or replace the Anti Static Brush Use grounded allowing a static charge to remain on compressed air to clean see Anti Static Brush the page in Chapter 6 4 Fusing Assembly is defective The print will Replace the Fusing Assembly smear if the Fusing Assembly is not heated sufficiently to bond the toner image to the paper 5 DC Controller is defective The DC Controller If a new Fusing Assembly does not resolve the regulates fusing roller temperature problem replace the DC Controller PCA Table 7 18 Compressed Print Possible Cause Recommended Action 1 Toner cartridge bushings are too tight This Replace the toner cartridge may occur on refilled toner cartridges 2 Broken or worn gear Inspect and replace the worn gear or assembly Table 7 19 Image Skew Possible Cause Recommended Action 1 Paper is loaded incorrectly If the paper is not Remove paper from the tray and install paper installed flush into the paper cassette a skewing correctly Position the paper guide correctly for problem will result the paper size being used 2 Bad Paper Lot Paper that is manufactured Try a different paper lot see HP LaserJet Printer poorly or
89. d the front door area avoid touching the fuser It may be HOT To avoid permanent damage to the toner cartridge do not use ammonia based cleaners on or around the printer Do not touch thetransfer roller with your fingers Contaminants on the roller can cause print quality problems SDUBLUAJUIEN U Maintenance 4 3 Table 4 1 NOTE 4 4 Maintenance COMPONENT CLEANING METHOD NOTES Outside Covers Use a water dampened cloth Do not use solvents or ammonia based cleaners Inside General Use a dry lint free cloth Remove all dust spilled toner and paper particles Paper Pickup Rollers Use a water dampened lint free cloth Registration Roller Use a dry lint free cloth Transfer Roller Use a dry lint free cloth DO NOT TOUCH with your fingers Anti Static Teeth Use a dry lint free cloth WARNING The adjacent to Transfer Roller Anti Static Teeth are extremely sharp Separation Pad Use a dry lint free cloth Fuser Assembly Use a water dampened lint free cloth Cleaning Spilled Toner Defective toner cartridges can develop leaks n addition 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 slightly dampened in cold water Do not touch the Transfer Roller with the damp doth or with your fingers Do not use a vacuum cleaner unless it is equipped with
90. e key to select the kind of reset you want Same as 09 MENU RESET above Same as 09 MENU RESET above Reset the printer There are two choices 1 To immediately activate the selections press until 07 RESET appears you will delete temporary macros fonts and buffered data 2 Press or Your changes will remain recorded in the menu marked with an but will not become active until the printer is reset or the printer detects the end of the job Troubleshooting 7 7 Punoouse qnoau L Table 7 1 Status Messages continued 12 PRINTER OPEN The front door is not firmly closed or the toner cartridge is not installed correctly 13 PAPER JAM Paper is jammed in the paper path or a paper jam sensor may be stuck causing a false paper jam warning The jam rate specifications are MP TRAY 1 per 6000 CASSETTE 1 per 4000 NOTE Many variables can affect actual frequency of jams The above specifications are intended as a general guideline only 7 8 Troubleshooting Make sure the toner cartridge is fully seated and the front door is firmly closed If the message persists 1 With the front door open check that the sensor flag for Front Door Open Sensor PS402 is not broken or stuck PS402 is located on the small Front Door Unit Terminal PCA on the front door under the Transfer Roller 2 Check functionality of the toner cartridge microswitch SW501 on the High Voltage PCA activated by metal ta
91. e Pickup Roller Assembly The Cassette Pickup Roller assembly is located under the Cartridge Guide The removal of this assembly requires prior removal of the top and right side covers and will require a stubby Phillips screwdriver 1 Remove Paper Cassette and Cartridge Guide Figure 6 30 2 From the right side of the printer remove the pickup clutch alignment guide Figure 6 17 callouts 7 amp 8 Unplug and free the clutch cable 3 Remove 2 small diameter machine screws Figure 6 31 4 Tilt the roller shaft upward from the left end and lift out being careful not to damage the cable A i Cassette Pickup Roller Assembly To Reinstall 1 Thread the Pickup Roller Clutch Cable underneath the MP Drive Gears on theright end while sliding the shaft into position The next step is very important If the clutch is not aligned properly paper will not feed Align thetab on the pickup dutch alignment guide as shown previously in Figure 6 17 callout 14 Align the plastic bearing retainers on each end of the shaft sothe flat portion is facing upward in proper position for the mounting screws N w Removal and Replacement 6 37 9 juauls9e day PAOUJ9H Separation Pad The separation pad is located adjacent tothe Registration Roller and can be removed without prior removal of any other parts CAUTION Removing the Separation Pad using a screwdriver is likely to damage it Do not attempt to remove the Separation Pad u
92. e Registration Roller and requires prior removal of the Registration B9 Roller D E Oc O 1 Removethe Registration Roller see Figure 6 33 3 2 Remove 2 self tapping screws F igure 6 35 El 3 Lift the Registration Roller Guide Plate up and out of the printer Figure 6 35 Registration Roller Guide Plate To Reinstall Be careful not to damage the two grounding tabs on the left end of the Guide Plate as you insert it into place Removal and Replacement 6 41 Anti Static Brush The Anti Static Brush is located directly under the Registration Roller Guide Plate 1 Remove the Registration Roller and Guide Plate see Figure 6 35 2 Remove 1 machine grounding screw with star washer Figure 6 36 callout 1 3 Lift the sheet metal grounding plate out Figure 6 36 callout 2 4 Lift the Anti Static Brush up and out of the printer Figure 6 36 callout 3 Figure 6 36 P Anti Static Brush 6 42 Removal and Replacement Paper Guide The Paper Guide is a plastic plate located directly under the Registration Roller assembly 1 Removethe Registration Roller and Guide Plate see Figures 6 33 and 6 35 2 Remove 3 self tapping screws Figure 6 37 3 Carefully lift the Paper Guide up and out of the printer Figure 6 37 div M Paper Guide Removal and Replacement 6 43 9 jueuje2ejdoH PAO0UI9H Bottom Assemblies Foot Assemblies The Left Side Foot removal procedure is described be
93. e as a separator 3 Multiple Feeds The printer may be feeding two or more pages at once because the paper is difficult to separate ALL PAGES BLANK 1 Sealing tape left in toner cartridge Remove the sealing tape 2 Empty or defective toner cartridge 3 Defective or contaminated Transfer Roller Without a functional Transfer Roller toner cannot be pulled from the photosensitive drum to the paper 4 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 5 Laser Scanner door not opening properly Recommended Action Make sure the application software 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 paper edges to separate the pages see HP LaserJet Printer Family Paper Specifications Guide HuljooysajqnolL L 1 If unsure weigh the cartridge Full weight 2000 grams 70 6 oz Empty weight 1600 grams 56 5 oz NOTE Some toner may reside in the waste toner cavity affecting the weight of the cartridge 2 Perform the Drum Rotation Functional Check described later in this chapter or try a known good toner cartridge Replace the toner cartridge if necessary Check roller installation and contact Perform the Half Self Test Functional Check described later in
94. ed Action 1 Overloaded paper cassette If the cassette is Reload proper amount of paper squarely in the overloaded the Pickup Rollers may not pick correctly cassette Review paper loading with the customer 2 Paper guide on the paper cassette adjusted Verify that the paper guide is adjusted for the too tight If the guide is pushing too tightly correct paper size and is locked into position against the paper it may be delayed in being Note that too loose a setting may cause image pulled into the printer skewing 3 Paper does not meet specs The surface ofthe Try a different paper lot see HP LaserJet Printer paper may be too smooth for the Pickup and Feed Family Paper Specifications Guide Rollers to correctly feed paper into the printer 4 Worn or broken drive gears If any gear within Replace the defective gear or Main Drive the drive train or paper path becomes assembly excessively worn or dirty erratic paper movement can result 5 Worn Pickup or Registration Rollers Paperis Inspect all paper path rollers looking for wear not being picked up consistently cracks or glazing Replace the worn rollers Troubleshooting 7 29 Bunoouse qnoa L Table 7 17 Smeared Print Possible Cause Recommended Action 1 Bad media The moisture content conductivity or Try a different paper lot or other media see HP surface finish of the media being printed may not LaserJet Printer Family Paper Specifications work corre
95. ed with the other printer processes Image formation consists of six processes 1 Drum Cleaning 4 Image Developing 2 Drum Conditioning 5 Image Transferring 3 Image Writing 6 Image F using Print Delivery Drum Cleaning Image Transferring Image Developing Delivery Image Formation Block Diagram G M9IAI9AQ jeuonouny Functional Overview 5 17 Figure 5 6 Toner Cartridge The toner cartridge is the heart of the I mage Formation System It houses the deaning conditioning and developing steps of the process The toner cartridge contains the photosensitive drum primary charging roller developing station toner cavity and cleaning station Induding these components that wear degrade or are consumed in the replaceable toner cartridge eliminates the need for a service call when replacement is required Toner Cartridge High Voltage Power Supply Contacts The toner cartridge has three contacts which route voltage from the HVPS PCA They are Upper Primary Charge Middle Developing Bias Lower Toner Sensing The Photosensitive Drum The special properties of the photosensitive drum allow an 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 conducti
96. efaults The printer makes most printing decisions based on either temporary settings or permanent defaults Settings you send from software applications override printer defaults Settings and Defaults Setting or Default Explanation Temporary setting A value set for the current print job by your software application For example a request from your 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 you send another software request or reset the printer Control panel default A value you set at the control panel by selecting a menu item then pressing An asterisk appears following the item name to indicate that it is now the default The printer retains this default when it is switched off Factory default The value set for each menu item at the factory Factory defaults are marked with an asterisk in the menu tables on the pages that follow Setting the Display Language Press and hold while powering on Hold until E appears Release ENC appear Click repeatedly until the desired language appears Click to save your choice An asterisk will appear beside your language selection appears briefly Wait for 3H to 3 6 Operating Overview Control Panel Menus Pressing gives you access to the menus one after another Each menu is described in a separate t
97. embly is dirty or defective The Clean the Fusing Assembly using alcohol If the circumference of the lower fusing Pressure Roller problem persists replace the Fusing Assembly is 86 mm 3 46 inches If the defect repeats at this interval the defect is associated with the Pressure Roller see note below 4 Gears are worn causing slippage or jumping Inspect the gears driving the toner cartridge and the Fuser Replace the Main Drive Assembly if necessary 5 Paper does not meet specs The surface of Try a different paper lot see HP LaserJet Printer the paper may be too coarse causing repeated Family Paper Specifications Guide marks NOTE When troubleshooting repetitive image defects use the Repetitive mage Defect Ruler supplied in Figure 7 3 to measure the distance between recurring defects Troubleshooting 7 25 HuljooysajqnoiL L Table 7 11 Bubble Print Possible Cause Recommended Action 1 The density adjustment slider switch on the 1 Check the position of the Print Density Dial in High Voltage Power Supply PCA slider switch is the slider switch If out of position remove and not aligned properly with the Print Density Dial reseat the High Voltage Power Supply PCA This causes the drum surface potential to be out of range 2 Replace the High Voltage Power Supply PCA 2 Toner build up in the Fusing Assembly Toner Remove and clean the Fusing Assembly see build up can physically damage the Fusin
98. ement technology REt Enhancement technology REt Printer Language s Standard Enhanced PCL 5 Enhanced PCL 5 Adobe PostScript Level 2 Optional Adobe PostScript Level 2 None Monthly Usage pages Up to 35 000 Up to 35 000 Memory Standard 4 Mbyte 12 Mbyte Optional maximum 68 Mbyte total 44 Mbyte total Internal Typefaces 45 PCL 45 PCL 35 PostScript Standard Interfaces Bi Tronics Parallel IEEE 1284 Bi Tronics Parallel IEEE 1284 JetDirect MIO Power Control Power Save Mode Power Save Mode Control Panel 8 Keys 8 Keys 16 Character VFD Display 16 Character VFD Display Printer memory is optimized with Memory Enhancement Technology MEt SIMMS available for use include 1 2 4 8 and 16 Mbtye Modules See Accessories amp Supplies in Chapter 8 for option product numbers Product Information 1 3 L uoneuuoju jonpoJud Paper Capacities and Sizes Table 1 2 Paper Capacities and Sizes Product Capacity Basis Size Range Number Weight MP Tray N A 100 sheets 17 to 28 pounds Maximum 11 7 x 17 7 in 64 to 105 g m2 297 x 450 mm Minimum 3 9 x 5 8 in 100 x 148 mm Standard sizes A3 A4 B Ledger B4 B5 Letter Legal Executive Paper Output Bin 250 sheets 17 to 28 pounds N A 64 to 105 5 Standard Cassettes Letter A4 C3160A 250 Sheets 17 to 28 pounds between letter 64 to 105 g m2 Jand A4 11X17 A3 C3161A 250 Sheets 17 to 28 pounds Selectable between ledger 6
99. er Assembly Parts and Diagrams 8 19 8 sweibeig pue sued Figure 8 7 Internal Components Page 1 of 4 8 20 Parts and Diagrams CL2 P UL Je NES CH117 15D g on Table 8 7 Internal Components 1 of 4 ee CU CET Plate Pressure Right Plate Pressure Left 1 2 3 4 5 7 10 11 12 13 14 15 15B 15D 16 17 18 C Parts and Diagrams 8 21 8 sweibeig pue sued Figure 8 8 CH114 g 18 23 cH111 CH106 x J4M P a f Cam 4 ON NE ad gett CH111 AC ar J7002 47013 0200 uae 17 Internal Components Page 2 of 4 8 22 Parts and Diagrams Table 8 8 Internal Components 2 of 4 Co 4 al T 10 11 12 13 14 15 16 CH120 Parts and Diagrams 8 23 8 sweibeig pue sued Figure 8 9 Internal Components Page 3 of 4 24 Parts and Diagrams 8 Table 8 9 Internal Components 3 of 4 pee ECT CET z 3 Lever Paper Sensing 7 Plate Contact Transfer Lever Sensor Front Reg Laser Scanner Assembly i 1 E E Parts and Diagrams 8 25 8 sweibeig pue sued Figure 8 10 x See Figure Ape b An SE c 2 Internal Components Page 4 of 4 8 26 Parts and Diagrams Table 8 10 Internal Components 4 of 4 CEIM m CIN Parts and Diagrams 8 27 8 sweibeig pue sued Figure 8 11 Card Cage Assembly 8 28 Parts and Diagrams CH122 CH106 Card Cage Assembly
100. er feed system clutches and sensors 5 7 5 8 5 26 descriped 5 25 paper path 5 25 7 4 7 8 7 25 7 29 7 30 7 35 paper guide removal and replacement 6 43 paper guide plate assembly removal and replacement 6 28 paper jam 6 27 check list 7 8 DC controller 5 27 false warning 7 8 messages 7 5 7 8 paper selection 1 8 paper size 7 28 sensor 7 8 sensor flags 7 8 toner 44 paper jam detection described 5 27 paper motion control 5 8 paper motion monitoring 5 8 paper path 5 25 components 7 4 described 5 25 dirty roller 7 25 gears 7 8 7 29 jammed 7 8 location 5 25 MP tray 7 35 rollers 7 29 7 30 paper sensors 5 8 7 8 paper sizes 3 4 3 15 3 18 7 9 7 10 7 29 7 30 label 7 10 paper specifications 1 8 7 8 7 21 7 23 7 25 7 30 PAPER printing menu item 3 8 parallel interface Bi Tronics B 1 Centronics 5 13 Centronics parallel interface B 1 described 5 13 MIO 7 14 settings 5 13 parallel menu 3 13 control panel 3 13 default settings 3 13 parallel menu items ADV FNCTNS 3 13 HIGH SPEED 3 13 partial blank page 7 28 parts HP s Distribution Center 1 16 HPD 1 16 1 19 ordering 1 16 8 3 Parts Direct Ordering 1 16 8 3 PDO Parts Direct Ordering 1 16 1 19 8 3 phone numbers 1 16 8 4 SME Support Materials Europe 1 19 parts and diagrams 8 1 8 30 Parts Center Europe PCE 1 16 Parts Direct Ordering 1 16 8 3 parts lists 8 3 PC INSTALL status message 7 10 PC LOAD status message 7 10 PC TRAY EMPTY status m
101. error occurs refer to Service and Error Messages in Chapter 7 Removal and Replacement 6 5 6 6 Removal and Replacement Disk Accessory Li The Disk Accessory is housed under a ESD protective plastic cover on the left rear corner of the Formatter PCA The plastic cover and the disk should be removed as one piece 1 With the printer OFF and unplugged loosen 2 captive screws and remove the Formatter PCA Place the PCA face up on an ESD safe surface 2 Thedisk assembly is connected to the Formatter PCA with two plastic locking pins and a 50 pin connector Grasp the two sides of the disk cover near the locking pins and lift firmly upward The locking pins will release along with the connector pins of the disk To Reinstall NOTE The PostScript option must be installed and operating before installing the Disk Accessory 1 Hold the disk by the side edges of the cover and align it with the diagram printed on the formatter board Align the connector pins carefully to prevent bending or mis alignment Align the cover locking pins with the holes in the formatter board CAUTION Never press on the center of the disk Press only on the edge of the cover directly above the connector to prevent damage to the disk Carefully press the connector pins and cover locking pins into place Check the connector pins for proper seating Re seat as necessary 2 Print a PostScript Configuration page PS CONFIG PAGE
102. ersists Priority of Errors Each error has a priority in relation tothe others If there is more than one error condition at the same time the highest priority error will be displayed The priority of errors is 1 Service Errors 2 Door Open No Toner Cartridge 3 Paper J am 4 Paper Out 5 Memory Error 6 Manual F eed Troubleshooting 7 5 Bunoouse qnoa L Printer Status Messages The following table lists printer messages and their meanings and describes recommended actions Messages that begin with a number are listed first followed by messages that begin with a letter Table 7 1 Status Messages Numeric Listings Blank Display Nothing displayed at power up Control panel If fans are functional on power up display remains blank 1 Verify the input power then check that CB101 and F101 are not open 2 Check and reseat connector from the Control Panel to the Formatter PCA 3 Remove any interface cables to the host 4 Print an Engine Test to determine if the print engine is functional If so replace the Control Panel then the Formatter PCA 00 READY The default ready message The printer is No action required ready to use 00 POWERSAVE Printer is in Power Save mode In Power Press any control panel key to take printer out of Save mode all control panel keys operate Power Save mode Receipt of data or an error normally condition will also take the printer out of Power Save mode The display will read 02 WARMING
103. ess the 00 READY message will be replaced by 68 READY SERVICE until the condition is cleared If you switch the printer OFF then ON you may lose settings To check settings print a self test If the error persists replace the Formatter PCA Troubleshooting 7 13 Table 7 2 Service and Error Messages continued 70 or 71 ERROR A language personality SIMM problem was Remove or replace the language personality identified SIMM not compatible with SIMM firmware 79 SERVICE xxxx A Formatter firmware error occurred The Write the error message and the four digit code numbers xxxx following the error indicate down before continuing Switch the printer OFF the specific kind of error then back ON 1 Remove SIMMs one at a time and recycle power to isolate 2 Ifthe problem persists and the printer has an MIO card installed remove the MIO and try using the parallel interface if possible 3 Replace the Formatter PCA Include the error message code with the defective PCA and return for evaluation 80 SERVICE xxxx The printer detected a problem in the MIO Write the error message and the four digit code card The numbers xxxx following the error down before continuing Switch the printer OFF message indicate the specific type of error then back ON If the error persists 1 Remove and reseat the MIO card 2 Check for bent pins on the MIO connection 3 Replace the MIO card 4 Replace the Formatter
104. essage 7 10 PCL 3 9 menu 3 9 Type List 3 14 PCL Demo Page control panel selection 3 14 PCL DEMO PAGE test menu tem 3 14 PCL MEM memory configuration menu item 3 12 PCL memory self test information 3 20 PCL menu 3 9 default settings 3 9 FONT SOURCE 3 9 PCL menu tem FONT NUMBER 3 9 FONT SOURCE 3 9 PITCH 3 9 PT SIZE 3 9 SYM SET 3 9 PCL TYPE LIST test menu tem 3 14 PDO Parts Direct Ordering 1 16 1 19 8 3 Personality selection 3 10 PERSONALTY job menu item 3 10 phone numbers technical assistance 1 20 phonenumbers parts 1 16 8 4 photosensitive drum 5 18 check list 7 32 damage 7 16 described 5 18 located 7 33 main drive 7 33 print density 5 6 photosensitive drum cleaning 5 17 5 19 photosensitive drum conditioning 5 17 5 20 pin configuration Index 5 parallel B 1 Pitch selection 3 9 PITCH PCL menu item 3 9 PJ L overview 5 15 PJ L Printer Display Language Centronics cabeling 5 15 context sensitive switching 5 15 described 5 15 dynamic I O switching 5 15 print environment settings 5 15 two way communication 5 15 plus key 3 5 PML Printer Management Language described 5 15 point size selection 3 9 PostScript selection 3 10 potrait orientation 3 8 power control 1 3 power distribution AC 5 5 power save mode 1 3 1 6 3 15 5 9 5 11 7 6 7 7 default setting 5 11 message 5 11 power save selection 3 15 power supply circuits 5 5 unit 5 5 6 18 6 20 6 22 power supply system 5 4 5 7
105. ette must be set to the correct media size the printer determines the media size by reading the location of this guide Table 7 2 Message 20 MEM OVERFLOW 21 PRINT OVERRUN 22 PAR IO ERROR 22 MIO ERROR 40 MIO ERROR 41 X ERROR X 1 2 4 0r5 41 3 PAPER ERROR Service and Error Messages Service and Error Messages The printer received more data from the computer than can fit in its available user memory The data dense text rules raster or vector graphics sent to the printer was too complex For Bi Tronics parallel PAR configuration the computer and printer are not communicating because of improper signal protocols This is an I O buffer overrun error Parallel Configuration may mean a loose cable connection or a bad or poor quality cable MIO Configuration This is an I O buffer overrun error Indicates an abnormal connection break occurred while transferring data from the computer A temporary printing error occurred The wrong size paper was fed from the MP Tray or the printer picked two sheets of paper at once Recommended Action Press toprintthe transferred data data loss may result then make more memory available in the printer by removing some fonts macros or any other data from memory or simplify the page sent to the printer or install additional memory Note if AUTO CONT ON the printer will automatically continue printing when this error occurs Pres
106. ew of the printer and the printing processes Thefollowing printer systems are discussed Power Supply System DC Controller System Formatter PCA Control Panel Interface PCA Image Formation System Paper Feed System Basic Sequence of Operation Figure 5 1 is a generalized block diagram of the printer Figure 5 1 Control Panel Formatter PCA Parallel Interface Port PCA DC Controller Paper Feed System System Image Formation System Printer Functional Block Diagram G M9IAI9AQ jeuonouny Functional Overview 5 3 Power Supply System The AC and DC power supply circuits are contained on the Power Supply Unit and the high voltage power circuitry is contained on the High Voltage Power Supply PCA The Power Supply and Distribution System is illustrated in Figure 5 2 Power Supply Unit 1 Circuit Breaker 1 i Switching Trans se CB101l g former Rectifier ue 24V to 5V Control Photo d rd SW102 Fusing Heate Drive Circuit Front Door Switch SW102 Overcurrent Protection FUSE1ON 1 0 24V Y Laser Scanner Unit 12V Primary Charging Roller Developing Bias Transfer Charging Roller JFUSE1ON JFUSE20N Controller Exhaust Fans 424V High Spd Motor M1 5V Low Spd 424V High Spd By EY igh gt pe Front Door FM2 ow Spd Assembly Sensors Clutches Solenoids Intake Fan 5V Low Spd Control Panel FM3 Interface PCA Formatter PCA Figure 5 2 Power Suppl
107. ewlett Packard warrants the Laser et 4V 4MV printer against defects in materials and workmanship for a period of one year from receipt by the customer Duringthe warranty period HP will at its option either repair or replace products which prove to be defective User maintenance components are not covered under the HP Laser et 4V 4MV printer factory warranty A separate maintenance agreement may be written to cover these components Exclusions The warranty on printers shall not apply to defects resulting from Improper or inadequate maintenance by customer Customer supplied software or interfacing Unauthorized modification or misuse Operation outside of the environmental specifications for the product Operation of non supported printing media Duty cyde abuse maximum printing more than the equivalent of 35 000 single sided pages per month e Operating the printer from a mechanical switchbox without a designated surge protector e Improper site preparation and maintenance e Useof non HP toner cartridges see the following explanation SI MM memory boards or interface boards The use of non H ewlett P ackard toner cartridges does not affect either the warranty or any maintenance contract purchased from HP However if an HP Laser et printer failure or if printer damage is found to be directly attributable to the use of any non HP product the repair will not be covered under the warranty or HP maintenance contract Hewle
108. f in photo and unplug the rearmost connector on the left side Figure 6 27 callout 2 Gently pry outward on the dips to release the right and left Front Door retainer arms Figure 6 27 callout 3 The door assembly is heavy Use caution when removing the hinge pins Using needle nose pliers pull the hinge pins outward while supporting the weight of the Front Door assembly AE Front Door Assembly To Reinstall Note that the hinge pins on the Front Door assembly are different The right side hinge pin is transparent in color and has a larger diameter head The hinge pin for the left side is opaque and has a smaller diameter head Removal and Replacement 6 33 9 juauls9e day 9 PAO0Ul9H Figure 6 28 Delivery Area Assemblies Upper and Lower Delivery Roller Assemblies The Delivery Roller assemblies are located on top of the printer chassis and require removal of the U pper Cover to access Remove the e clip on the left end of the upper roller shaft Figure 6 28 callout 1 Slide the bushing toward the left to dear the bracket Figure 6 28 callout 2 Lift the left end of the roller shaft upward slightly and slidethe right bushing to the right out of its retainer Figure 6 28 callout 3 Lift the left end of the shaft the rest of the way up and out to clear the gear on the right end Push upward on small retainer tab located under the plate assembly Figure 6 28 callout 4 and slide the assembly to the left to
109. f tapping screw hole becomes stripped repair of the screw hole or replacement of the affected assembly is required 6 4 Removal and Replacement User Installable Accessories O J I DO 33 Memory Upgrade dp 2 CAUTION A SIMMs and the Formatter PCA can be ADA damaged by small amounts of ESD electrostatic discharge ESD Wear 1 an anti static wrist strap With the printer OFF and unplugged loosen the two captive screws and remove the Formatter PCA Remove the SIMM from the anti static package Hold the board with your forefingers on the side edges and your thumbs against the back edge so the notch on one end is on the right and the metal teeth face toward the SIMM slot match the positioning shown in frame 2 Insert the board firmly into the SIMM slot at about a 20 degree angle Use closest open slot toward the back of the printer Rotate the SIMM toward the back of the printer to a 45 degree angle until it clicks into the metal locking tabs If it is properly seated it will not lift away from the slot To remove a SIMM you must first release the metal locking tabs Slide the printer F ormatter PCA back into the printer and tighten the two screws Re attach any cables and the power cord then switch the printer ON and print a self test to verify the new memory is available If the SIMM is not recognized turn the printer OFF and reseat the SIMM If an
110. face software for HP UX systems J2375B HP JetDirect interface software for SunOS and Solaris UNIX systems Disk Accessory C3295A 42 8 MBytes 8 6 Parts and Diagrams Table 8 A Common Hardware and Replaceable Cables Common Fasteners Used in the Printer CH101 Screw Trus Head w Washer FA9 1449 000 CH102 Screw Stepped M3 RA1 7636 000 CH103 Screw Stepped M3X4 RB1 5489 000 CH104 Screw Stepped M3 RB1 5552 000 example o pr Screw w Washer M3X8 Oo pr Screw Mach Trus Head M3X8 aa Pr Screw Machine M4X8 CH111 Screw Tap Binding Head M4X8 XB4 7400 809 Lao CH112 Screw Pan Head Self tap XB4 7401 007 CH113 Screw Bind Head Self tap XB4 7401 009 Parts and Diagrams 8 7 Ox O Qu Ox 8 sweibeig pue sued Table 8 A Common Fasteners Used in the Printer continued CH114 Screw Machine M3X8 XB6 7300 809 a CH115 Screw TP M3X16 XB6 7301 609 C CH116 Retaining Ring e type XD2 1100 242 Retaining Ring e type CH122 Screw Mach M3X14 XB1 2301 407 Table 8 B Replaceable Cables Cable Beam Detect RG5 1442 000 Option Cable Assembly RG5 1446 000 DC Cable Assembly RG5 0239 000 Display Panel Cable RG5 1485 000 Assembly sue 8 8 Parts and Diagrams Figure 8 1 Formatter PCA H V Power Supply PCA Cassette Size Sensor Assembly MP Tray Pick up Roller Major Assembly Locations Delivery Roller Assemblies Delivery Drive Assembly Main Drive Assem
111. from the control panel Verify the entry under Disk Accessory reads Disk Installed YES and lists available capacity NOTE When the disk drive is replaced all fonts and macros must be re loaded Optional Lower Cassette The Optional Lower Cassette requires installation of a Lower Cassette Paper Guide on the bottom of the printer as well as connection of a cable to the rear of the left foot Before beginning unplug the printer from the power source and remove the toner cartridge and paper cassette WARNING Get another person to help handle the printer 1 Remove 11 x 17 A3 Paper Cassette dust cover and cable connector cover from back of printer 2 Turn the printer onto its right side NOT the side with exhaust vents Install the Lower Cassette Paper Guide and return the printer to upright position 3 Release Lower Cassette shipping lock to unlocked position and set the printer onto the Lower Cassette base being careful to align the locater pins 4 Connect the Lower Cassette base cable into the connector A and replace the cable connector cover B NOTE The Paper Cassette and Lower Cassette Paper Guide must be in place for the Lower Cassette to operate properly When the Lower Cassette is installed it becomes the default paper source Removal and Replacement 6 7 9 juauls9e day 2n0uI9dy Covers and Doors The
112. g Chapter 6 Assembly 3 Leaking toner cartridge Replace the toner cartridge 4 Paper does not meet specs The paper Try a different paper lot see HP LaserJet Printer moisture content conductivity or surface finish Family Paper Specifications Guide may not work correctly with the electrophotographic process Table 7 12 Dropout Possible Cause Recommended Action 1 Single sheet of paper defective Try reprinting the job 2 Paper does not meet specs The paper Try a different paper lot see HP LaserJet Printer moisture content conductivity or surface finish Family Paper Specifications Guide may not work correctly with the electrophotographic process 3 DC Controller defective low primary voltage Replace the DC Controller 4 High Voltage Power Supply PCA defective Replace the High Voltage Power Supply PCA 5 Transfer Roller defective Replace the Transfer Roller 7 26 Troubleshooting Table 7 13 Character Voids Possible Cause Recommended Action 1 Paper surface too rough Toner migrates to low Use paper with correct finish smoothness meeting HP specifications see HP LaserJet Printer Family Paper Specifications Guide spots leaving higher areas void 2 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 3 Paper surface too smooth for proper toner adhe
113. ge developing 5 17 5 22 image formation system block diagram 5 17 DC controller 5 10 described 5 17 features 5 17 printer functions 5 3 toner cartridge 5 18 7 16 image formation troubleshooting 7 16 image fusing 5 17 5 24 image size 3 8 image skew 7 30 image transferring 5 17 5 23 image writing 5 17 5 21 indicator lights control panel 3 3 ready 3 5 input described 5 13 interal assembly locations 1 14 1 15 interface PCA described 5 16 5 28 location 5 16 printer functions 5 3 interfaces standard 1 3 internal assembly locations 1 14 1 15 internal code number 3 20 internal components 8 20 8 22 8 24 8 26 internal typefaces 1 3 INTR printer timing 5 28 10 BUFFER memory configuration menu item 3 12 10 SIZE memory configuration menu item 3 12 item key 3 5 J jam paper 7 8 Index 3 Japanese VCCI Statement C 4 job menu 3 10 default settings 3 10 PWRSAVE 3 15 job menu item PAGEPROTCT 3 10 PERSONALTY 3 10 PWRSAVE 3 10 RESOLUTION 3 10 K key continue 3 5 enter 3 5 form feed 3 15 item 3 5 menu 3 5 minus 3 5 MP paper size 3 5 online 3 5 plus 3 5 reset 3 5 shift 3 5 keys control panel 3 5 L labels adhesive 1 9 languages PCL 3 9 languages printer 1 3 3 9 8 5 laser and scanner drive 5 8 laser drive 5 8 laser safety information C 1 Laser Safety USA C 1 laser statement Finland C 2 laser scanner assembly removal and replacement 6 20 LC LOAD status message 7 10 LC TRAY EMPTY
114. hanging the force of attraction between the toner and drum A change in DC bias causes either more or less toner to be attracted tothe 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 5 22 Functional Overview Figure 5 11 Image Transferring During the transferring process the toner image on the drum surface is transferred tothe paper A positive charge applied tothe 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 Thestatic eliminator teeth also help separate the paper from the drum The static eliminator teeth weaken the attractive forces between the negatively charged drum surface and the positively charged paper Without this help thin paper may wrap around the drum After separation the drum is deaned and conditioned for the next image Photosensitive Static Charge Drum Eliminator Transfer Charging Roller Image Transferring Functional Overview 5 23 G M9IAJ9AQ jeuonouny Figure 5 12 Image Fusing 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 to
115. he MP Tray is available CLR WARN ON Clearable warnings are displayed until acknowledged by pressing JOB Clearable warnings are displayed from the time they are detected until the start of the next job AUTO CONT ON When an error message is displayed printer goes offline for ten seconds then returns to on line state OFF When an error message is displayed printer goes offline and remains offline until operator presses LOW TONER CONT Printer remains on line and continues to print on encountering 1 amp L k message STOP Printer stops and goes offline until operator changes the toner cartridge presses or Factory default Operating Overview 3 11 Memory Configuration Menu This menu contains the items for personality Resource Saving and O Buffering Depending on how the printer memory is configured any combination of menu items and possible values can appear When you change an item in this menu the printer automatically resets and all fonts macros and downloaded data in the printer are lost except data stored on the optional Disk Accessory Memory Configuration Menu items can be selected only from the printer control panel Table 3 9 Memory Configuration Items IO BUFFER The I O buffer is a portion of the printer memory set aside to hold incoming data When this item is set to Gi the memory set aside for I O buffering is automatically determined by the printer based on available memory ON When it i
116. he fusing process and must be coated for easy release of the top sheet The adhesive must be stable at the 392 F 200 C temperatures encountered for 0 1 second in the fusing process and must not produce emissions that exceed exposure levels or threshold limits established by OSHA and other safety agencies Adhesives must not come into direct contact with any part of the printer The MP Tray is recommended for printing adhesive labels A wide selection of suitable labels is available through Hewlett Packard A list of available sizes is located in the HP Laser el Printer Family Paper Specification Guide HP Part No 5002 1801 Transparencies Overhead transparencies used in HP Laser et printers must be able to withstand the 392 F 200 C temperatures encountered in the printer s fusing process for 0 1 second Suitable transparency film is available through Hewlett Packard Refer tothe HP Laser el Printer Family Paper Specification Guide HP Part No 5002 1801 for details The MP Tray is recommended for printing transparencies Product Information 1 9 Storing Print Media Follow these guidelines when stacking and storing print media Store paper in its ream wrapper until ready to use DO NOT store cartons or reams directly on the floor where they will absorb a higher moisture content Instead place cartons on a pallet or on shelves DONOT storeindividual reams in a manner that causes them to curl or warp along the
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118. ignment guide and remove the guide Figure 6 16 callout 5 6 Unplug the registration clutch connector Figure 6 16 callout 6 7 Slide the registration clutch off the shaft and free its cable from the cable clips Figure 6 16 Main Drive Assembly Removal 1 of 2 continued on next page 6 22 Removal and Replacement Figure 6 17 NOTE 15 Remove 2 screws from the pickup clutch alignment guide metal and remove the guide Figure 6 17 callout 7 Unplug the pickup clutch connector and remove its cable from the clips Figure 6 17 callout 8 Carefully remove the e clip washers and bushing from the shaft Figure 6 17 callout 9 Unplug the upper end of the two connectors on the Main Drive assembly Figure 6 17 callout 10 Remove 2 self tapping screws securing the U pper Cover mounting bracket and remove the bracket Figure 6 17 callout 11 Remove 4 self tapping screws Figure 6 17 callout 12 While supporting the weight of the front door release the F ront Door retainer arm by pushing out on the retainer arm clamp Figure 6 17 callout 13 The Main Drive assembly is now free Slide it outward from the printer 9 juauls9e day PAO0UI9H Main Drive Assembly Removal 2 of 2 To Reinstall When reinstalling the Main Drive assembly be certain to align the alignment tabs with the notch on both the registration roller dutch and the pickup roller clutch Figure 6 17 callout 14 The smal
119. inconsistently or that has too smooth or Family Paper Specifications Guide too rough a surface texture can cause an image skew problem 3 Worn Pickup and or Registration Rollers Inspect all paper path rollers looking for wear Paper is not being picked up consistently cracks or glazing Replace the worn rollers 7 30 Troubleshooting Figure 7 2 Troubleshooting Checks Engine Test The engine test print is used to verify 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 horizontal lines down the entire printable area and is also useful for checking and adjusting registration Engine Test Button Location The engine test print button SW7001 is located on the DC Controller PCA It is accessible through a hole at the rear of the printer Printing an Engine Test To print an engine test use a non metallic object to press the engine test button see Figure 7 2 A single test page is printed Engine Test Printout Engine Test Button and Printout Troubleshooting 7 31 Punoouse qnoa L Half Self Test Functional Check The electrophotographic process can be subdivided into the following stages Cleaning removing excess toner from drum surface Conditioning placing
120. ing temperature of 392 F 200 C for 0 1 second A small sample of a new print media should be tested before purchasing large quantities Envelopes Toprevent severe printer damage do not use envelopes having windows clasps snaps or synthetic materials Envelopes can be printed only from the MP Tray Choose envelopes that are well constructed They should lay flat and be sharply ceased They should not be wrinkled nicked or otherwise damaged Envelope adhesive must be compatible with the heat and pressure of the fusing process 1 8 Product Information CAUTION NOTE NOTE Adhesive Labels l Usethe following guidelines when selecting labels 5y 38 This printer does not support use of labels with any exposed spaces i 5 Previous Laser et family printers could safely print on label stock with ca exposed spaces running lengthwise down the sheet S Do not attempt to print on labe sheets after any of the labels have been removed from the sheet Damage to the printer may result Labels must be arranged on the carrier sheet so that there are no exposed spaces on the sheet Using label stock with spaces between rows or columns of labels can often result in labels peeling off during printing causing serious jamming and possible printer damage The top sheet printing surface must be of copier quality and provide good toner adhesion The carrier sheet backing sheet must be compatible with the temperatures and pressure of t
121. 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 F RUs Some mechanical assemblies may be repaired at the subassembly level PCA component replacement is not supported by Hewlett Packard Ordering Parts Field replaceable part numbers are found in Chapter 8 of this manual Replacement parts may be ordered from HP s Service Materials Organization SMO or Support Materials Europe SME Phone numbers for the various sources are e SMO Service Materials Organization 1 800 227 8164 U S only e SME Support Materials Europe 49 7031 142253 e HP s Distribution Center HPD 1 303 353 7650 Exchange Program HP offers remanufactured assemblies for some parts Theseare identified in Chapter 8 and can be ordered through Parts Direct Ordering PDO or Support Materials Europe SME Consumables The printer has no consumables other than the toner cartridge which may be ordered directly from H ewlett Packard Refer to Chapter 8 for ordering information 1 16 Product Information Figure 1 7 NOTE Toner Cartridge Life Thetoner cartridge C3900A is designed to simplify replacement of the major consumable parts The toner cartridge contains the printing mechanism and a supply of toner At 5 page coverage a toner cartridge will print approximately 7500 page
122. ion Parallel Bi Tronics Interface SIMM Slots Multiple 1 0 MIO slot Power Supply Connector Dust Cover for 250 sheet ledger 11x17 or A3 Paper Cassette Serial Number Plate Optional Universal Lower Cassette Connector Access ON OU RUN H 1 12 Product Information Figure 1 4 Front Door Assemblies L uoneuuoju JonpoJud NA LAY Z AZ A ES 2 Front View with Front Cover Open with toner cartridge removed 1 Print Density Dial 2 Arrow guide for installing toner cartridge in printer 3 Toner cartridge cavity 4 Fusing Assembly 5 Registration Roller 6 Transfer Roller 7 Multipurpose MP Tray Product Information 1 13 Internal Assembly Locations 1 of 2 Figure 1 5 Internal Assembly Locations 1 of 2 Card Cage Assembly Main Motor Power Supply Unit Fusing Assembly Cable Main Drive Assembly Cassette Pickup Roller Clutch Registration Roller Clutch Front Door Cassette Pickup Roller under plate Exhaust Fan FM 1 Delivery Assembly E5BvoxaouawnNEaA 1 14 Product Information Figure 1 6 Internal Assembly Locations 2 of 2 Internal Assembly Locations 2 of 2 1 Output Bin 2 Delivery Assembly 3 Fusing Rollers 4 Transfer Roller 5 Standard Paper Cassette 6 Optional Lower Paper Cassette 7 Cassette Pickup Roller 8 Toner Cartridge Product Information 1 15 L uoneuuoju JonpoJud Service Approach Repair of the printer normally begins with use of the printer s
123. ition etc Change the type of paper being used and re evaluate the paper curl results Troubleshooting 7 35 Troubleshooting Tools Repetitive I mage Defect Ruler Figure 7 3 First occurence of print defect Primary Charging Roller 43 mm 1 7 in Face Down Delivery Upper Roller 50 mm 1 96 in Registration Roller 50 mm 1 96 in Transfer Roller 61 mm 2 4 in Developing Cylinder 63 mm 2 48 in Fusing Pressure Roller 86 mm 3 38 in Upper Fusing Roller 88 mm 3 46 in Toner Cartridge Photosensitive Drum 94 mm 3 7 in Repetitive Image Defect Ruler 7 36 Troubleshooting Wiring Diagrams This section contains the following diagrams Figure 7 4 DC Controller Inputs 1 sheet Figure 7 5 DC Controller Outputs 1 of 2 Figure 7 6 DC Controller Outputs 2 of 2 Figure 7 7 Main Wiring Diagram 1 sheet fold out Troubleshooting 7 37 Bunoouse qnoa L High voltage power supply PS501 DC Controller PCA Pick up unit 4501 10 paper sensor RPASEN L when pick up unit paper sensor detects paper J901 11 J7010 11 CPASEN L when there is no paper in cassette Cassette paper sensor Cartridge detection switch a L when cartridge is detected Print density adjusting control SGI Transfer high voltage monitor signal Toner cartridge i J7010 6 ress Toner 1 ANT 1 supply i O 7508 1 sensor 14 Front cover connect PCA L when toner supply is low f P 1 A E Mutti p
124. itive surface and may cause spotting and defects during printing White areas on the page may indicate that the drum has been exposed to light for toolong If white areas appear stop the printer and wait a few minutes This process should eliminate most defective images If not the toner cartridge may be placed in a dark environment for several days which may restore some life to the drum Faulty Image Examples This section illustrates some image defects and their possible causes Since there are many variables in the printing process it is possible to encounter image defects that are not illustrated in the following illustrations If you find a defect that is not illustrated record the probable cause along with the printing environmental conditions and save a copy of the defect for future reference Each example is followed by a tablethat lists in order the probable causes of the image defect 7 16 Troubleshooting BLANK PAGE BLACK PAGE see Table 7 4 page 7 21 see Table 7 5 page 7 22 xS Laser Mr AR TT E c ol 7 ey ugi CHroinianucc gt el 600 dpi She oio s PostScript Level 2 Adobe PostScript 35 PostScript Typefaces Fus 8 Pile PCE 5 Me amp Wide Paper Format DOS PR Neowork Ready EN aw Power Save ra FADED PRINT WHITE STRIPES parallel to path see Table 7 6 page 7 23 see Table 7 7 page 7 24 Troubleshooting 7 17 Punoouse qnoa L
125. job menu item 3 10 resolution print 1 3 3 20 5 21 7 15 resource saving 3 12 3 20 7 15 selection 3 12 self test information 3 20 status 3 20 RESRCSAVE memory configuration menu item 3 12 RET printing menu item 3 8 REt Resolution Enhancement technology 1 3 3 20 5 11 return philosophy 1 22 right side assemblies 6 21 drum drive assembly 6 24 main drive assembly 6 22 main motor M1 6 21 ROM 5 14 character sets 5 14 dot patterns 5 14 map message 7 12 size message 7 12 S safety toner C 3 saving menu selections 3 7 scanner drive 5 8 scanner motor described 5 9 synchronized with main motor 5 21 Self Test appearance 3 20 continuous printing 3 19 control panel 3 20 demo page option 3 15 disabling protocols B 5 disk accessory information 3 20 disk drive 7 9 engine 3 22 explained 3 20 features 3 19 firmware datecode information 3 20 formatter number information 3 20 1 O buffering information 3 20 installing options 3 19 menu selection information 3 20 microswitch SW7001 5 8 MIO information 3 20 NetWare frametype B 6 other options information 3 20 page count 3 15 page count information 3 20 PCL memory information 3 20 print pattern information 3 20 printing continuous 7 6 printing test page 3 19 printout key 3 20 Index 7 ram size information 3 20 replacing formatter PCA 3 17 resource saving information 3 20 REt information 3 20 sample 3 20 selection 3 14 serial number 3 15 serial number information 3
126. left retainer arm It must slide underneath the bushing on the rear Transfer Roller as you carefully ease the left retaining arm and left Registration Roller bushing back into place 2 NOTE the position of the brass bushings on the ends of the Registration Roller see Figure 6 34 top view The flat sides must be horizontal and the flanges must be outside of the chassis slots 3 Make surethat the gear on the left end of the Registration Roller is properly meshed before replacing the screws 4 Make sure that the spring retaining plate locating pin is inserted through the hole in the chassis 5 When replacing the screws holding the spring retainer plates rock the plates toward the rear and hold them flat while inserting and starting the screws Make sure that the screws are fully tightened before proceeding Figure 6 34 D Printer Chassis N Spring Retaining Plate Self tapping Screw Spring Brass Bushings Rear Metal Roller Registration Roller Rubber Roller Retaining Arm CROSS SECTION Retaining E Arm A Printer Chassis Locating Pin Self tapping Screw Registration Roller 2 of 2 6 40 Removal and Replacement Registration Roller Guide Plate The Registration Roller Guide Plate is a metal assembly located directly o under th
127. ler diameter e clip fits on the registration clutch Removal and Replacement 6 23 Drum Drive Assembly The Drum Drive assembly is located directly behind the Main Drive assembly 1 Removethetoner cartridge 2 Removethe Main Drive assembly see Figure 6 16 3 Remove 3 self tapping screws Figure 6 18 4 Slide the assembly out of the printer Figure 6 18 Drum Drive Assembly 6 24 Removal and Replacement Front Door Assemblies O Du All Front Door assemblies can be removed without prior removal of any 3 3 covers or other components yo Oo 3 og Transfer Roller Assembly 2 CAUTION Handle the Transfer Roller from the ends only Do not touch the surface of the Transfer Roller Skin oils will affect its electrical characteristics resulting in poor image transfer 1 Grasp the shaft on either end of the Transfer Roller and lift upward to snap out of the plastic retainer clip Figure 6 19 callout 1 2 Lift the opposite end up and out of its retainer clip Figure 6 19 Transfer Roller Assembly To Reinstall Be sure that the non gear end of the shaft is to the right Also make sure that the alignment slot plastic tab on the underneath side of the Transfer Roller slips over the locator pin Figure 6 19 callout 2 Removal and Replacement 6 25 Fusing Assembly The Fusing assembly is located on the upper portion of the printer door CAUTION Do not remove 2 screws indicated in Figure 6 20
128. low The Right Side Foot removal is similar CAUTION If the left side cover is in place do not rest the printer on ts left side as this will damage the ventilation grill 1 Remove lower paper cassette and turn the printer on its side 2 Remove connector cover if installed see Figure 6 38 callout 1 3 Remove the Optional Lower Cassette connector by depressing the retainer ears inward see Figure 6 38 callout 2 4 Remove 3 machine screws see Figure 6 38 callout 3 5 Carefully pull the foot straight out while pushing the sensor tabs out of the way See Figure 6 38 callout 4 Figure 6 38 Left Side Foot To Reinstall Install the Optional Lower Cassette connector before reinstalling Foot assemblies 6 44 Removal and Replacement Troubleshooting Chapter Contents Preliminary Troubleshooting e e 7 3 Paper Path and Components o o e 7 4 Printer Message Troubleshooting 0 7 5 Priority OF ETTOFS a sse o e a UR cR 7 5 Printer Status Messages oaoa ees 7 6 Service and Error Messages o 000 eee 7 11 ClearableWarnings o e e e 7 15 Image Formation Troubleshooting llle 7 16 Check the Toner Cartridge ll e aes 7 16 Faulty Image Examples o e 7 16 Troubleshooting Checks leen 7 31 Engine TeSt se uses g a on ox ocho Teck ee 7 31
129. lustrates printer features PCL or Adobe PostScript Prints PostScript specific information including current settings printable area and memory configuration UN Fe Service Mode The Service M ode should be used only by authorized service personnel Whilein Service Mode you can Print a Service Mode Self Test Verify and set the Page Count and serial number These are displayed on the standard self test Set the Cold Reset Default This sets the factory default paper size to either Letter or A4 Set the Demo Page True F alse Used to remove the Demo Page option from the self test menu Set the Diagnostic Functions ON or OFF for software developers use only The following procedure is used to initiate the Service Mode refer to Figure 3 2 Hold down the and keys while powering ON the printer until all lights are illuminated and the Display Window is blank If the Display Window reads amp r at this point the keys were released too soon Repeat this step until Successful OO Presthe key then the key The message 99 is displayed briefly then the printer automatically begins a amp 5 go After several seconds both Control Panel Indicators turn OFF Theprinter 22 may display 2 iP if it has not warmed up pl After the e printer has wernei up and passed the self test s displayed To exit the Service M ode pressthe key Power Save An additional 10 second time inte
130. machine screw see Figure 6 9 callout 2 D E S CAUTION Be careful not to damage the sensor tabs when removing the assembly E En 2 4 Carefully lift the Cassette Size Sensor Assembly up and out of the chassis Figure 6 9 Cassette Size Sensor Assembly To Reinstall Make sure the Cassette Size Sensor Assembly mounting bracket fits properly over the chassis locating pins when replacing the assembly Make sure the connector is fully inserted into its receptade Removal and Replacement 6 15 Rear and Top Area Assemblies Card Cage The Card Cage is located directly underneath the Upper Cover It is not necessary to remove the Formatter or MIO from the Card Cage 1 Disconnect the interface cable Figure 6 10 callout 1 2 Release the cable from the 3 cable clips Figure 6 10 callout 2 NOTE Do not remove 2 screws indicated in Figure 6 20 by the null symbol 9 3 Remove 6 screws four arein line with the cable clip and two at the rear from the top of the plate Figure 6 10 callout 3 4 Remove 1 screw from the back of the plate Figure 6 10 callout 4 5 Loosen do not remove 1 screw as shown in Figure 6 10 callout 5 6 Lift the Card Cage off of the printer Figure 6 10 PA A 409 da LI e 0 II E IE so Deo o j Card Cage To Reinstall When reinstalling the Card Cage pay careful attention to the routing of the cables and the position of the
131. n An asterisk appears next to your selection indicating that it is now the default 6 Press toplacethe printer back on line Bb UN ui Operating Overview 3 7 Printing Menu Y ou can override or change any Printing Menu setting through most software applications When you change a setting from the printer control panel the new setting becomes the printer default value Table 3 5 Printing Menu ltems hm Joptons Jeman o i COPIES 1 to 999 Select any number from 1 to 999 Sets default image size at which printer formats page unless a software setting overrides it FORM Sets vertical spacing from 5 to 128 lines for default 60 and 64 paper size Scrolls in increments of 1 line MANUAL FEED amp Om Available only through MP Tray When Manual Feed is on and the MP Tray is empty the printer goes off line when it receives a print job and displays paper size or envelope size When you place a sheet in the MP Tray the printer goes back on line and prints the sheet RET OFF L Refines print quality by smoothing the fine gradations along the angles and curves of the printed image ECONOMODE OFF GH EconoMode substantially reduces the amount of toner on the printed page the result is similar to draft mode on some dot matrix printers Factory default Factory default for 110V printers Factory default for 220V printers 3 8 Operating Overview PCL Menu PCL Menu items allow you to choose the p
132. n i0U RORRaDO I ODE Yy CchAirzo YSfca65608 60a80nAGOnATORA oaAi0U R ARapAIlI Sevsfeaconaconaconseon roratom r t LSOARADSI 100 PS MENU PRT PS ERRS JAM RECOVER PARALLEL MENU HIGH SPEED ADV FNCTNS ABCDEF lt gt ABCDEFG lt gt ABCDEFGH gt ABCDEFGHI lt gt ABCDEFGHIJ 0123456789 lt gt ABCDEFGHIUK Operating Overview 3 21 sane MINIADN Bui Engine Test The engine test print can be used to verify that the print engine is functioning correctly The Formatter PCA is completely bypassed during an engine test Toprint an engine test use a non metallic object to press the engine test button see Figure 3 4 A single test page is printed Figure 3 4 Engine Test Printout Engine Test 3 22 Operating Overview CAUTION Resetting the Printer Simple Reset A simple reset does the following Clears the page buffer Removes all temporary typefaces and macros Makes the current user selected defaults active making them the default values until you change them again Purges the input buffer of the active I O the other 1 O buffer is not affected To perform a simple reset T Lo totake the printer off line The light goes off and IHE appears on the display While holding down the key pres briefly appears on the display Then the p
133. nced capabilities such as bi directional communication between the computer and printer faster transmission of data and auto configuration of printer drivers the customer must have e Support in software applications for these features e A parallel cable with the correct pin configuration see below Parallel Cable Pin Configuration For best results use the C24542D C2950A C2951A cable or equivalent Most existing parallel cables support Bi Tronics communication but some might have incompatible pin assignments Ensurethat all power and interface cables on the printer and host computer are properly grounded in compliance with local codes Signal Name Printer Pin IBM Port Pin 4 nSTROBE DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 0 10 ey N CALL PE SELECT dg uo o 0c nAutoFd 14_ 14 O VDC GND 19 THRU 30 18 THRU 25 nFAULT 32 SS nSelIn 36 7 Parallel Cable Pin Assignments C24542D I O Information B 1 Connecting to Local Talk Networks The printer does not come with a Local Talk network cable Use a standard LocalTalk network cable and connector kit such as the HP LocalTalk Network Cable Kit part number 92215N You will need one connector kit for each printer on the network and another for each Macintosh computer on the network Connecting to the END of a LocalTalk Network Figure B 2 Connecting to the END of a LocalTalk Netw
134. ner and presses it into the paper The fusing roller contains a quartz halogen lamp that provides heat for the fusing process Fusing temperature is monitored by the DC Controller PCA via thermistor TH1 The DC Controller maintains a temperature of about 180 C during print mode If the fusing system overheats about 220 C a relay opens interrupting power to the fusing heater causing a fuser error 50 SERVICE message If the fusing system exceeds 240 C the thermal fuse will open cutting off power to the fuser Halogen Heater Fusing Roller Paper Pressure Roller Image Fusing 5 24 Functional Overview Figure 5 13 NOTE Paper Feed System Paper Path The paper feed system picks print media automatically from the paper cassette optional lower cassette or accepts it from the MP Tray and delivers it tothe image formation system at precisely the right time The system then feeds the media tothe fusing station and delivers the finished product to the output bin on top of the printer Figure 5 13 shows a simplified paper path and the approximate location of the major components Output Delivery Rollers Fusing Rollers Toner Cartridge Transfer Charging i Roller Registration Rollers Cassette Pick up Roller MP Tray Pick up Roller Paper Cassette Lower Cassette Pickup Rollers Optional Cower Lower Cassette Paper Guide Paper Path The Paper Cassette and Lower Cassette Paper Guide must be in
135. nless you have a new replacement pad available To remove Usea small flat blade screwdriver to pry firmly upward at either end of the separation pad Figure 6 32 Figure 6 32 Separation Pad 6 38 Removal and Replacement Registration Roller The Registration Roller requires a stubby magnetic screwdriver and prior o removal of the covers and toner cartridge guide Removal of the left end of B9 the Registration Roller is described below Theright end is similar except gt a thereis no plastic retainer tab or metal grounding tab oS ga 1 Lift the end of the plastic retainer tab upward and slide to the left to remove 3 m Figure 6 33 callout 1 2 Removethe self tapping screw holding the spring retainer plate in place Figure 6 33 callout 2 The spring retaining plate is under tension and will pull to the front as the screw is loosened Be careful not to drop the screw intothe printer chassis 3 Carefully pull theroller retaining arm tothe front while sliding the left end of the roller out of its alignment slot Figure 6 33 callout 3 4 Releasetheright end of the roller in a similar manner NOTE Refer to Figure 6 34 for reinstallation details Figure 6 33 Registration Roller 1 of 2 continued on next page Removal and Replacement 6 39 To Reinstall Registration Roller NOTE Refer to Figure 6 34 while reinstalling 1 NOTE the placement of the thin metal grounding tab see Figure 6 34 side view on the
136. nt toner formulations found in refilled cartridges The print quality of HP Laser et 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 utilizes a recycling program for used toner cartridges Cartridge components that do not wear out are recycled Plastics and other materials are recycled Hewlett Packard pays the shipping costs from the user to the recycling plant For each cartridge returned HP donates one U S dollar to be shared by the Nature Conservancy and the National Wildlife Federation Tojoin this recycling effort follow the instructions inside the toner cartridge box 1 18 Product Information Table 1 6 Related Documentation and Training Media Table 1 6 lists where to order related documentation See Ordering Parts earlier in this chapter Related Documentation ee uds HP LaserJet Family Quick Reference 5961 0531 X X Service Guide HP LaserJet 4V and 4MV Printers C3141 90901 X X Users Manual HP PCL5 Printer Language Technical 5961 0601 X X Reference Information Package HP LaserJet Printer Family Paper 5002 1801 Specifications Guide nti X Introduction to Network Printing Book 5961 0649 LaserJet Basic Hardware Training Course 5961 0880 Solutions Connectivity Guide 5962 8536E Available from LDC 1 800 544 9976 Specifi
137. ntly set into clothing MSDS Information A Material Safety Data Sheet MSDS for toner or any other chemical used in the printer is available through H ewlett Packard s Customer Information Center by either mail or fax By mail To obtain an MSDS for the HP C3900A toner cartridges through the mail call the Customer nformation Center CI C at 1 800 752 0900 between 6 A M and 5 P M Pacific Standard Time By fax Toobtain an MSDS for the HP C3900A toner cartridges by fax call HP ASAP Automated Support Access Program at 1 800 333 1917 and follow theinstructions for using the HP FIRST fax service See Technical Assistance earlier in this chapter for more information on the HP FIRST service Ozone Emission These printers do not use high voltage corona wires in the el ectrophotographic process and therefore generate no measurable ozone gas O3 The printers instead use charging rollers in the toner cartridge and in the print engine Regulatory Information C 3 9 uoneunoju Asoyejnbay NOTE Figure C 1 FCC Statement Class B Note 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 and if not installed and used in accordance with the inst
138. ode which can also be thought of as draft mode is user selectable via a control panel key and some software applications The default setting is Off Figure 5 4 Normal Mode Medium Density EconoMode Medium Density EconoMode vs Normal Mode NOTE EconoM ode does not affect print speed memory usage or extend toner cartridge life 5 12 Functional Overview NOTE Input Output Parallel Interface TheFormatter PCA receives incoming data through its Bi Tronics interface IEEE 1284 The Bi Tronics 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 High Speed Y es N o configuration item is user selectable The default setting Y es allows the I O to run at the higher speeds supported by most newer PCs When set to No the parallel interface runs at the slower but compatible mode for older PCs The Advanced Functions On Off configuration item is also user selectable The default setting On allows for two way parallel communications The Off mode disables the advanced functionality The Bi Tronics I O is compatible with the Centronics parallel interface standard Refer to Parallel Cable Pin Configuration in Appendix B for parallel pin assignments Modular I O MIO The optional Modular I O card can be installed in the slot provided on the Formatter PCA It provides automatic
139. of Operation The Formatter PCA and the DC Controller PCA 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 Figure 5 15 shows the general timing of the printer events The following events take place during normal printer operation Table 5 2 Printer Timing From power ON to the end of Main Motor Clear the drum surface potential and initial rotation clean the Transfer Roller From the end of the WAIT or the LSTR Maintain the printer in ready state standby period until the input of the PRNT signal from the Formatter Or from the end of the LSTR period until power OFF INTR initial From the input of the PRNT signal from Stabilize the photosensitive drum rotation the Formatter until the laser diode sensitivity in preparation for printing Also intensity has been stabilized clean the Transfer Roller From the end of initial rotation until the Form images on the photosensitive drum Scanner Motor stops based on the VDO signal from the Formatter and transfer the image to paper LSTR last From the primary voltage DC OFF until Deliver the last sheet of paper Also clean rotation the Main Motor stops the Transfer Roller If another PRNT signal is sent from the Formatter the printer returns to the INTR period If not it returns to the STBY period 5 28 Functional Overv
140. on Laser Safety U S A The Center for Devices and Radiological Health CDRH of the U S Food and Drug Administration implemented regulations for laser products manufactured since August 1 1976 Compliance is mandatory for products marketed in the United States This 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 this printer is completely confined within protective housings and external covers the laser beam cannot escape during any phase of normal user operation WARNING 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 Regulatory Information C 1 Laser Statement Finland The following applies to printer operation and servicingin Finland LASERTURVALLISUUS LUOKAN 1LASERLAITE KLASS 1LASER APPARAT HP Laser et s 4V and 4MV laserkirjoitin on k ytt j n kannalta turvallinen luokan 1 laserlaite Normaalissa k yt ss kirjoittimen suojakotelointi est lasers teen p syn laitteen ulkopuolelle Kirjoittimen on hyv ksynyt Suomessa laserturvallisuuden osalta S hk tarkastuskeskus Laitteen turvallisuusluokka on m ritetty valtioneuvoston p t ksen N o 472 1985 ja standardin EN 60825 1991 mukaisesti VA
141. ontrol Clutches Registration Cassette Pickup and MP Tray Pickup Engine Test Microswitch Motors Main Drive Scanner and F ans Figure 5 2 shows the Power Supply and Distribution System Refer to the wiring diagrams at the end of Chapter 7 for detailed listings of the DC Controller inputs and outputs DC Power Distribution TheDC power distribution circuitry located on the DC Controller PCA distributes 5 V dc 12 V dc and 424 V DC as follows 45V dc Control Panel Formatter PCA Photosensors PS401 PS402 DC Controller Circuitry Laser Scanner Assembly Exhaust Fans FM1 and FM2 low speed Intake Fan FM3 12 V dc Laser Scanner Assembly 24 V dc Laser Scanner Assembly High Voltage Power Supply Clutches and Solenoids Exhaust Fans FM 1 and FM2 high speed G M9IAI9AQ jeuonouny Functional Overview 5 7 Laser and Scanner Drive Based on information received from the Formatter the DC Controller sends signals to the Laser Scanner Assembly to modulate the laser diode ON and OFF and to drive the Laser Scanner motor Refer to I mage F ormation System later in this chapter for more information Paper Motion Monitoring and Control The DC Controller PCA controls paper motion by continuously monitoring the various paper sensors and coordinating the timing with the other print processes For a detailed explanation of paper movement and the interaction of photosensors and solenoids with the paper movement p
142. ork 1 Disconned the printer from its power source Insert the connector box cable into the LocalTalk port of the printer 2 Insert one end of the cable into the new connector box 3 If the connector box is not self terminating insert a terminating resistor into the connector box 4 Insert the other end of the cable into the last connector box on the network Remove the terminating resistor if necessary 5 Reconnect the printer to its power source B 2 1 0 Information Connecting to the MIDDLE of a LocalTalk Network Figure B 3 Connecting to the MIDDLE of a LocalTalk Network 1 of 2 1 Disconnect the printer from its power source Insert the new connector box cable into the LocalTalk port of the printer 2 Insert one end of the new cable into the connector box 3 Placethe other end of the new cable next to a connector box on the network 4 Unplug one cable from the connector box on the network Figure B 4 Connecting to the MIDDLE of a LocalTalk Network 2 of 2 5 Insert the new cableinto the connector box on the network 6 Insert the cable you removed from the network into the new connector box Then reconnect the printer to its power source uoyeuojur o1 E I O Information B 3 Figure B 5 NOTE B 4 1 0 Information Connecting to a Network The printer supports up to four different cables Bi Tronics parallel Figure B 5 callout 1 BNC ThinLAN Figure B 5 callout 2 LOBase T RJ
143. place for the Optional Lower Cassette to operate properly When the optional lower cassette is installed it becomes the default paper source G M9IAJ9AQ jeuonouny Functional Overview 5 25 Clutches and Sensors Figure 5 14 shows the locations of the various solenoids photosensors and rollers Figure 5 14 Clutches and Sensors Table 5 1 Clutches and Sensors Senses paper in the fuser area Senses position of the printer front door Senses paper in the registration roller area Intermediate plate pressurization solenoid Releases the spring loaded plate allowing paper to contact the MP roller 5 26 Functional Overview Printing from the Paper Cassette Paper motion begins when the DC Controller PCA after receiving a PRINT signal starts the Scanner Motor the Main Motor and the fusing heater The Cassette Pickup Clutch CL 2 is energized for 0 5 seconds the pickup roller and the registration roller rotate and feed a sheet of paper from the Paper Cassette to the Registration Position where the registration roller is stopped by the Registration Clutch CL1 if necessary until the Scanner and Fuser are ready The DC Controller sends the VSREQ signal to the Formatter PCA within a specified amount of time after the Pickup Unit Photosensor PS501 is activated The leading edge of the media is now ready to proceed tothe photosensitive drum When the print engine receives the VSYNC and VDO signals the printing process
144. play will clear automatically this may take up to a minute depending on the card However if the message remains after 5 minutes a problem may exist in the network card or host Consult the network documentation that came with the MIO card If the printer MIO card is operating correctly and communicating with the network this message will disappear after approximately one minute and no action is required If the MIO card is unable to communicate with the network this message will remain for five minutes and then go away In this case the printer is not communicating with the network even though the message is no longer present The problem may be a bad MIO card bad cable connection on the network or a network problem Consult the network documentation that came with the MIO card Troubleshooting 7 9 Table 7 1 Message Alphabetical Listings FS DISK FAILURE MENUS LOCKED ME FEED envelope size MF FEED paper size MP LOAD PC LOAD or LC LOAD paper size or envelope size Status Messages continued Printer detected a disk failure The network administrator has locked out access to the control panel menu system except for the Test Menu and MP Tray size The printer requested that an envelope be manually fed Envelope size may be COM10 MONARCH DL C5 B5 JPOST or JPOSTD The printer requested that media be manually fed Paper size may be LETTER LEGAL A4 EXEC 11x17 A3 JIS B4 JIS B5 CUSTOM
145. plies 8 5 acoustic emissions 1 7 adhesive labels 1 9 MP tray 1 9 specifications 1 9 Adobe PostScript 5 14 ADV FNCTNS parallel menu tem 3 13 anti static brush removal and replacement 6 42 assemblies front door 1 13 6 25 6 27 6 30 6 33 8 17 assistance technical 1 20 AUDIO TIPS HP 1 20 AUTO CONT configuration menu item 3 11 B background scatter 7 28 black lines 7 24 7 25 black page 7 22 blank white page 7 21 blank page partial 7 28 bottom assemblies 6 44 foot assemblies 6 44 bubble print 7 26 Cc cables replaceable 8 7 capacities output tray 1 3 card cage assembly 8 28 removal and replacement 6 16 cartridge guide removal and replacement 6 36 cartridge slots 1 3 cassette pickup roller assembly removal and replacement 6 37 CDRH C 1 Center for Devices and Radiological Health CDRH C 1 Centronics parallel interface B 1 character set selection 3 9 character set selection 3 9 character voids 7 27 circuit breaker resettable 5 5 circuit protection 5 5 class 1 laser product C 1 class B digital device C 4 cleaning printer 4 3 spilled toner 4 4 clearable warning messages 5 14 7 5 7 15 WOJ OB 600 A4 7 15 W1IMAGE ADAPT 7 15 W2INVALID PERS 7 15 W3J OB ABORTED 7 15 W8 OB 600 OFF 7 15 W9J OB 600 LTR 7 15 WD DISK NOT INIT 7 15 WM personality MEM FULL 7 15 WM CHK MEM CNFIG 7 15 WM J OB 300 7 15 WM J OB 600 A3 7 15 WM J OB 600 LGL 7 15 WM MEM CNFIG N A 7 15 CLR WARN configuration menu item
146. printer covers are in four separate components the U pper Cover indudes the Control Panel the Left and Right Side Covers and the Rear Cover Control Panel The Control Panel Assembly includes the Control Panel PCA and its plastic cover as shown in Figure 6 2 1 Press the back of the control panel cover to release the retaining clips see Figure 6 2 2 Carefully lift the right end of the control panel cover and disconnect the cable from the Control Panel PCA Figure 6 2 Removing the Control Panel To Reinstall Be careful to align the tabs at the front of the Control Panel into their alignment holes Make sure the tabs at the back of the Control Panel are placed inside the Upper Cover before pressing into place NOTE When replacing a control panel that has a non English keyboard overlay be sure to remove the overlay and install on the new control panel 6 8 Removal and Replacement Upper Cover The Upper Cover is held in place by two screws which are accessed from o the front of the printer D I AeA DO ESD 25 1 Open the front door 3 go 2 Remove 2 screws shown in Figure 6 3 zs 3 Tilt the front of the cover up slide it to the rear unsnap cable from retainer and unplug the control panel connector from the Interface PCA Figure 6 3 Upper Cover Removal and Replacement 6 9 Static Charge Eliminator CAUTION Remove the Static Charge Eliminator only if replacing Removing it may damage the acce
147. r 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 8 High Voltage Power Supply PCA is defective Replace the High Voltage Power Supply PCA 9 DC Controller PCA is defective The DC Controller supplies the proper voltage to the High Voltage Power Supply PCA Replace the DC Controller PCA Troubleshooting 7 23 Bunoouse qnoa L Table 7 7 White Stripes parallel to path Possible Cause Recommended Action 1 Toner cartridge is nearly empty This can Remove the toner cartridge and shake it gently cause uneven toner distribution The cartridge will soon require replacement 2 Toner cartridge has been exposed to too much Store the toner cartridge in a darkened environment for several days This may restore the photosensitive potential 3 Foreign objects in beam path Any foreign Remove the toner cartridge and check for objects will block the light from developing an damage Replace the toner cartridge if it is image on the Photosensitive drum damaged Remove the Printer Cover and inspect the path from the Laser Scanner to the toner cartridge drum looking for foreign objects in the beam path Table 7 8 Black Lines perpendicular to path Possible Cause Recommended Action 1 Toner cartridge is damaged Inspect the toner
148. r screw and the guide seated with retaining tabs located correctly or paper jams will occur 3 Replacethe 3 screws ensuring that the 2 spring washers are in place Removal and Replacement 6 27 9 ueuje2ejdoH PAO0UJ9H Figure 6 22 WN EP E au Paper Guide Plate Assembly The Paper Guide Plate assembly contains the MP Tray pickup roller motor and gear assemblies and requires prior removal of the Transfer Roller and Fusing assembly Remove the Transfer Roller see Figure 6 19 Remove the F using assembly see Figure 6 20 Carefully remove the small spring attached to the sensor assembly shown in Figure 6 22 callout 1 From the left side of the assembly push on the retainer tab and lift off the plastic cable shield already removed in Figure 6 22 Unplug 1 connector shown in Figure 6 22 callout 2 Release the right door retainer arm by pushing out on the retainer arm clamp Figure 6 22 callout 3 Remove 4 self tapping screws Figure 6 22 callout 4 Remove 2 long machine screws Figure 6 22 callout 5 The Paper Guide Plate assembly is now free Lift it upward and out of the printer Paper Guide Plate Assembly To Reinstall Align the two plastic alignment pins and pull the tension off the MP Guide Plate assembly while lowering Note that the assembly must be pressed downward against the grounding springs before it is fully seated Be sure the sensor assembly spring is put back in pl
149. rTalk networks might need to be set depending upon the network configuration The following describes the parameters and procedures to set those parameters By factory default all supported network protocols are enabled in the HP Laser et 4MV printer Disabling unused protocols will Rid the network of unwanted broadcast messages from the printer Provide better control over who prints to the printer Provide only pertinent information on the self test page Allow the display of warning messages on the printer control panel display to show protocol specific error conditions The procedures for disabling the network protocols is found later in this appendix Software which allows configuration on the supported networks is included with the printer except for UNIX AIX HP UX Solaris or SunOS which must be purchased separatel y Network software configuration information for the printer is located in the HP J etDirect Network Interface Configuration Guideincluded with the HP Laser et 4MV printer ToEnter the MIO Menu Pres totakethe printer offline Pres until Pres until Press until Press EJEA uoneuuojui oj E I O Information B 5 Configuring Novell NetWare Frame Type Parameters Normally selecting a NetWare frame type is not required The HP J etDirect card automatically selects a NetWare frame type and only when this selection is incorrect do you have to set the NetWare frame type through the H
150. rinter default font and symbol set Printer Control Language PCL is HP printer language Y ou can also change such PCL Menu items as the E through your software application Table 3 6 PCL Menu Items FONT SOURCE Internal fonts Permanent soft fonts Mn SIMM Module n slot number Typefaces stored in one of the four ROM SIMM slots M1 slot 1 for example FONT NUMBER 0to999 The printer assigns a number to each typeface and lists them on the PCL Typeface List accessed under the Test Menu see Table 3 4 The font number appears in the Font column of the printout You must select a FOHT SOURCE in order for t Defaults and other conditions are as follows 0 is the default 1 is the default You can select from the control panel only a permanent soft font that is currently in the printer SIMM Module n SIMM slot 1 4 Typefaces stored in one of the four ROM SIMM slots M1 slot 1 for example MO9IAJ9AQ Dunejedo size item available depends on the F you select For fixed pitch outline typefaces select pitch sizes from 44 to 99 99 For proportionally spaced outline typefaces select point sizes from 4 00 to 999 75 in 25 point increments ROMAN 8 A symbol set is a unique grouping of all the characters in a font Many others PC 8 or PC 850 is recommended for line draw characters Symbol set charts appear in the PCL 5 Technical Reference Manual Factory default Operating Overview 3 9 J ob Menu
151. rinter returns to the on line state 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 J etDirect configuration To avoid making changes to your configuration remove the eDirect card before performing a cold reset If possible print a control panel self test prior to performing a Cold Reset This will document current settings for later reference Operating Overview 3 23 MO9IAJ9AQ Sunesado Table 3 13 1 2 To perform a cold reset Turn off the printer While holdingthe key down turn the printer on amp appears piis on the display then amp zT appears After abu 30 seconds 2 reappears on the display followed by amp amp The cold reset is complete Pres toreturn the printer on line display appears on the Menu of Resets Additional reset options are available through the Menu of Resets Use the Menu of Resets option with caution It can result in loss of buffered page data or printer configuration data Y ou should only useit when Y ou wish torestore the default printer settings Communication between the printer and computer is interrupted Y ou are using both the parallel 1 O and MIO ports and one of the ports is having problems Toaccess the M enu of Resets Pres totakethe printer off line Hold down both and for at least 10 seconds until
152. rocess refer to the section Paper F eed System later in this chapter Clutches The drive signals for the Registration Clutch CL1 Cassette Pickup Clutch CL2 and the MP Tray Pickup Clutch CL3 are provided by the DC Controller PCA Engine Test Microswitch SW7001 Microswitch SW7001 located on the DC Controller is activated manually through an access hole at the rear of the printer This switch causes the print engine to perform a self test diagnostic which bypasses the F ormatter PCA and print a full page of black parallel lines This test is useful for troubleshooting printer problems because it isolates the print engine from the Formatter PCA 5 8 Functional Overview Motors The Main Motor M1 is controlled by the DC Controller PCA The Main Motor drives the Main Drive Assembly and rotates during the Initial Rotation period following initial power ON the Print period or the Last Rotation Period or whenever the printer front door is opened and closed The Scanner Motor is controlled and monitored by the DC Controller It rotates the scanner mirror during the Initial Rotation period and the Print period The Fan Motors F M1 FM2 and F M3 are controlled and monitored by the DC Controller PCA The Intake Fan FM3 operates continuously and the Exhaust Fans FM 1 and FM 2 operate at low speed in the Standby Mode and at high speed during the Initial Rotation Print and Last Rotation periods The exhaust fans t
153. ructions 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 Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Any changes or modifications not expressly approved by Hewlett Packard could void the user s authority to operate this equipment Use of a shielded interface cable is required to comply within the Class B limits in Part 15 of FCC rules VCCI Statement J apan The VCCI statement below is required in J apan It is similar to the FCC regulatory statement COBB FI BARRA UERR X OBS L msciovcpm SHAZNSHHRE Cum coU EUIEtHE CLEARER SERERE EE XUI GERE VCCI RBiBaLTHOVET LOL KEELI Vt FEY a YVSERICMBUCCHHICN Se z smEOomBNCLIUuAccsS60 z3 BU ik HA Bic E gt TIE LW MOROELTFEW VCCI Statement Japan C 4 Regulatory Information Index 00 OFFLINE status message 7 6 00 POWE RSAVE status message 7 6 00 READY status message 7 6 02 WARMIN
154. rval is added to the Power Save function in Service Mode With Service Mode displayed press MENU until J ob Menu is displayed Press until Pi is displayed Press until the desired time interval is displayed Press to save your selection Pres on to return to the Service Mode Pres againto place the printer back on line Operating Overview 3 15 a oa Wait 5 seconds Form Feed Figure 3 2 Service Mode Menus 3 16 Operating Overview NOTE WN PP Nou f Co Setting the Page Count and Serial Number The page count and serial numbers are stored in Non Volatile Memory If it is necessary to replace the F ormatter PCA the page count should be set to the current valueto reflect the age of the print engine The procedure for setting the serial number is similar to setting the page count Usethe following procedure to set the page count Before removing the old F ormatter PCA print a control panel self test to verify the current page count and serial number of the printer if possible If itis not possibleto print a self test try to verify the values before replacing the Formatter PCA by following steps 3 through 5 below After verifying the page count from the old Formatter PCA replace it with the new PCA as described in Chapter 6 Enter the Service M ode as previously described in this chapter When z is displayed press Lg to access the Service Menu Pres to step through the menu
155. ry Charging Roller 5 20 Functional Overview Figure 5 9 Image Writing 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 see Figure 5 9 Focusing Lens Scanning Mirror Hexahedron Laser Driver Cylindrical Lens BD Mirror Photosensitive Drum Image Writing 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 1 600th of an inch The beam can be turned on and off to place a dot of light every 1 600th of an inch This is how the printer achieves ts 600 x 600 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 tothe DC Controller where it i
156. s to resume printing Note if AUTO CONT ON the printer will automatically continue printing when this error occurs Some data loss may occur Try to simplify the print job If you must print the job as is set PAGEPROTCT 0N in the Job Menu print the job then return PAGEPROTCT AUTO Do not leave PAGEPROTCT set to ON as it will degrade performance Press to clear the error message data will be lost If the error continues Bunoouse qnoa L Parallel Configuration check for loose cable use a high quality cable HP 24542D or equivalent Note some non HP parallel cables may be missing pin connections If the printer is using an I O other than the Bi Tronics parallel I O see the manual for that device Press to clear the error message If the printer is using an I O other than the Bi Tronics parallel I O see the manual for that device Remove the page from the output bin and press co The page containing the error will automatically be reprinted Note if AUTO CONT ON the printer will automatically continue printing when this error occurs Ensure that the paper is within the specifications If the page jammed remove the jam Press and the page containing the error will automatically be reprinted NOTE If AUTO CONT ON the printer will automatically continue printing when this error occurs Refer to the error 13 PAPER JAM earlier in this table for more information Troubleshooting 7
157. s see Figure 1 7 EE 5 coverage FREETERERENREE KETTE SESE CELSE FITUS BERTA pena EEZEE EEE E ETE EXER Estee EAE tes E TIE ENERE ESE F CEER T TEKEE NEEE E EErEE EERE EREERERE EET KEKE EERPIR EA tence He te EEEEE ELELEEEE PRE En ERREREERLIE BEREIZ EEERE EELEE IEEE EXER pA IEEE EEC EIE EELE EERE ENCE ESESCLE KEKE EE ZE E EEEE SEER FRR FTT D BEEE PE rers TEEEEFEEEBBEPR Sample 5 Page Coverage L uoneuuoju J9NPOId When regularly printing pages with less coverage such as short memos a toner cartridge should print more than 7500 pages However the cartridge may print less than 7500 pages if routinely printing very dense print For best results always use a toner cartridge befor stamped on the toner cartridge box ethe expiration date Product Information 1 17 Refilled Toner Cartridges While Hewlett Packard does not prohibit the use of refilled toner cartridges during the warranty period or while under a maintenance contract their useis not recommended for the following reasons Repairs resulting from the use of refilled toner cartridges are not covered under the Hewlett Packard warranty or maintenance contract 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 Laser et toner cartridge H ewlett P ackard also cannot predict what the long term reliability effect on the printer is from using differe
158. s circuit also applies a positive or negative DC voltage to the transfer charging roller according to the instructions from the CPU on the F ormatter PCA This circuit also controls the image density by changing the primary AC voltage and the developing AC bias according to the setting of the print density dial Refer to Figure 5 15 for High Voltage Power Supply timing information Toner Cartridge Microswitch SW501 Microswitch SW501 located on the High Voltage Power Supply PCA is activated by the toner cartridge If the toner cartridge is not installed the switch opens and an error is issued by the Formatter causing the display panel message i to be displayed A toner cartridge must be installed and the font door must be closed before the printer can resume printing Print Density Adjustment Adjusting print density affects the line width boldness of the print image This is accomplished by varying the developer DC bias which controls the amount of toner applied to the photosensitive drum The Print Density control is accessible behind the front door The point of the dark arrow is the most reduced density setting and the thick end of the dark arrow is the most increased density setting The default setting is at center range 5 6 Functional Overview DC Controller System The following systems and functions are controlled by the DC Controller DC Power Distribution Laser and Scanner Drive Paper Motion Monitoring and C
159. s 8 5 see also accessories and supplies SW501 toner cartridge microswitch 5 6 7 7 7 8 SW7001 engine test microswitch 5 8 SW7001 location 7 31 SYM SET PCL menu item 3 9 symbol set 3 9 selection 3 9 7 technical assistance 1 20 temporary settings 3 6 temporary settings 3 6 control panel 3 6 temporary soft fonts 7 7 test menu 3 14 CONT SELF TEST 3 19 default settings 3 14 PS CONFIG PAGE 6 6 test menu items CONT SELF TEST 3 14 PCL DEMO PAGE 3 14 PCL TYPE LIST 3 14 PS CONFIG PAGE 3 14 PS DEMO PAGE 3 14 PS TYPE LIST 3 14 SELF TEST 3 14 test engine 3 22 tests printer 3 19 toner cartridge 1 15 1 17 bushings 7 30 capacity 1 17 cavity 1 13 charging rollers C 3 check list 7 16 cleaning spills 4 4 connection points 7 34 damage 6 26 7 24 7 25 7 34 defective 4 4 7 21 7 22 7 28 described 5 18 5 21 drum cleaning 5 17 5 19 drum conditioning 5 17 5 20 drum rotation check 7 33 expiration 1 17 faulty image exampes 7 16 gears 7 8 7 25 HVPS contacts 5 18 image formation 7 16 image formation system 5 18 installing 1 13 leaking 7 26 7 28 life expectancy 1 17 light exposure 7 24 MSDS C 3 non HP 1 22 photosensitive drum 5 6 5 18 7 16 7 32 7 33 print quality 1 18 printer message 5 6 7 5 7 7 7 8 recyding 1 18 refilled 1 18 7 30 7 33 replacement 8 5 sealing tape 7 21 toner distribution 7 24 used 1 18 warranty 1 18 toner cartridge microswitch SW501 5 6 7 7 7 8 toner low mess
160. s 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 G M9IAI9AQ jeuonouny Functional Overview 5 21 Figure 5 10 Image Developing 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 attracted to the magnetic core of the cylinder A rubber blade brushes the toner on the developing cylinder to a uniform thickness 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 attracted to the discharged exposed grounded areas of the drum and repelled from the negatively charged non exposed 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 toner against the areas of the drum not exposed to laser light This AC potential improves density and contrast Photosensitive drum Blade Stirring rod ii Image Development The Print Density control behind the front door adjusts the DC bias of the developing cylinder by c
161. s faulty turning Replace the Laser Scanner Assembly laser on continuously 7 Connectors between the Laser Scanner unit Inspect and reseat the connectors Replace and DC Controller are not seated properly or are cables as necessary defective 7 22 Troubleshooting Table 7 6 Faded Print Possible Cause 1 Toner supply is low 2 Print Density is set incorrectly 3 EconoMode is on EconoMode saves toner by reducing the dot density This may appear to be a print quality problem in some cases 4 Paper does not meet specs The moisture content conductivity or surface finish may not work correctly with the electrophotographic process 5 Transfer Roller is defective or incorrectly installed If the transfer roller loses conductivity it cannot effectively pull toner from the drum to the paper 6 Laser Scanner door is not opening properly 7 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 Recommended Action Shake the cartridge gently to redistribute the toner or replace the cartridge Change to a darker setting and retry printing 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 re seat the tone
162. s running out of toner If TONER LOW CONT is displayed the printer will continue printing if TONER LOW STOP the printer will stop printing and go off line The MIO card is initializing This is a status message during initialization the MIO is not active but since the printer supports I O switching the printer remains on line The MIO card is not ready The Bi Tronics parallel port will continue to operate normally Recommended Action Insert a toner cartridge or make sure the cartridge is fully seated and the front door is fully closed thenpress to resume If the error persists 1 Check functionality of the toner cartridge microswitch SW501 on the High Voltage PCA activated by metal tab in the rear wall of the toner cartridge cavity adjacent to the high voltage contacts 2 Check that the sensor flag for Front Door Open Sensor PS402 is not broken or stuck PS402 is located on the small front door Unit Terminal PCA on the front door under the Transfer Roller 3 Replace the DC Controller PCA Shake the toner cartridge or replace it If TONER LOW STOP press Or 4 to allow printing to continue print quality will gradually degrade Punoouse qnoa L If the message persists 1 Check the contact points on the left end of the toner cartridge and inside the toner cartridge cavity The Toner Low contact is the lower of the three 2 Replace the High Voltage PCA No action required Dis
163. s set to H the size can be manually adjusted When it is set to NO memory is set aside IO SIZE 10K and up i FFER is set to 0H 1 0 appears in the menu Use this item to add or reduce l O buffer memory in increments of 10 KBytes up to 100 KBytes then in 100 KByte increments RESRCSAVE AUTO This item appears when a certain amount of memory and a personality SIMM are installed in the printer If it is set to OFF 3 the printer automatically determines the amount of memory to allocate to installed personalities languages ON When it is set to 4 additional memory management item selections appear for each installed personality see next personality dependent resources such as fonts are lost when personality changes PCL MEM 0 KBytes and up When Resource Saving is set to ti each installed PS MEM personality for example PCL and PostScript is added as a menu item You can increase memory in increments of 100 KBytes up to the maximum Factory default The HP LaserJet 4MV printer is set to GFF at the factory 3 12 Operating Overview Parallel Menu Parallel Menu items can be selected only from the printer control panel Y ou cannot change or override them from your software application Table 3 10 Parallel Menu ltems HIGH SPEED YES The speed at which data is transmitted to the printer Ez sets the Bi Tronics parallel interface to run at a higher data rate NO supported by newer computers sets the Bi Troni
164. s to user selected settings and clears buffered page data clears temporary soft fonts and clears temporary macros The printer returns all Printing PCL Job Config Mem Config Parallel MIO if installed and the installed personality PCL PS etc Menu settings to their factory default configurations except for page count MP Tray size and display language Clears the page buffer removes temporary data such as downloaded fonts and sets user selected defaults such as Power Save to their factory defaults Clears the page buffer and removes temporary data such as downloaded fonts but affects the active I O port only Clears the page buffer and removes temporary data such as downloaded fonts but affects all I O ports You changed menu items while data temporary fonts or temporary macros were present in printer memory or while the printer was in the middle of a job No action required unless the printer is receiving data You may have to press several times to prevent printing unwanted pages Reconfigure the printer and MIO When you install an MIO card to reinitialize the control panel you may need to perform a cold reset Note Ina shared environment this task should only be performed by the system administrator To perform a cold reset hold down while switching the printer ON until 08 COLD RESET appears in the display To access press forabout10 seconds until RESET MENU appears then use th
165. s 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 CAUTION The printer contains parts that are electrostatic discharge ESD sensitive Always service printers at an ESD protected workstation Watch for the ESD reminder shown at left while performing removal procedures gt m o 0 Removal and Replacement 6 3 CAUTION Figure 6 1 NOTE CAUTION Required Tools 2 Magnetized Phillips Screwdriver 6 inch shaft 2 Stubby Magnetized Phillips Screwdriver 1 inch shaft Small flat blade Screwdriver Small Pair Needle Nose Pliers All screws used in field replaceable printer components are Phillips head screws which require a 2 size Phillips screwdriver Figure 6 1 shows the difference between a Phillips and a Pozidriv screwdriver Note that the Phillips tip has more beveled surfaces A Posidriv screwdriver will damage the screw heads Use Phillips only Phillips Posidriv Phillips vs Posidriv Screwdrivers See Chapter 8 for a table listing screws and other common hardware used in the printer To install a self tapping screw first turn it counter dockwise to align it with the existing thread pattern then carefully turn clockwise to tighten Do not over tighten If a sel
166. sembly 6 37 Separation Pad o e eee 6 38 Registration Roller 10f 2 6 39 Registration Roller 2 of 2 6 40 Registration Roller Guide Plate 6 41 Anti staticBrush o a 6 42 Paper Guide e 6 43 Left SIJE FO A Cob ee Bae es A 6 44 Paper Path and Components 7 4 Engine Test Button and Printout 7 31 Repetitive Image Defect Ruler 7 36 DC Controller InputS llle ens 7 38 DC Controller Outputs 102 7 39 DC Controller Outputs 202 7 40 Main Wiring Diagram snm 7 41 Major Assembly Locations 8 9 Covers and DOOrS o e e 8 10 Foot Assemblies o ellen 8 12 Front Door Components Page10f2 8 14 Front Door Components Page2 of 2 8 16 Output Components o 8 18 Internal Components Pagelof4 8 20 Internal Components Page20f4 8 22 Internal Components Page30f4 8 24 Internal Components Page 4 0f4 8 26 Card Cage Assembly o o o o 8 28 Connecting tothe END of a LocalTalk Network B 2 Connecting tothe MIDDLE of a LocalTalk Network 1 of 2 B 3 Connecting tothe MIDDLE of a LocalTalk Network 2 of 2 B 3 I O Connector Locations
167. sent to the printer in landscape mode the subsequent print jobs print in landscape only if they are formatted for landscape printing al on PML 8 PML is a Printer Management Language that allows remote configuration 2 S and status readback through the O ports Functional Overview 5 15 Control Panel The Formatter PCA sends and receives printer status and command data via a Control Panel PCA The Control Panel consists of a 16 character display window and an 8 key keypad Control Panel messages can be configured in any of several languages Refer to Using the Control Panel in Chapter 3 and to Printer Message Troubleshooting in Chapter 7 for more information The eight keys on the keypad are used for a variety of functions see Chapter 3 Keyboard overlays are available in any of several different languages see Chapter 8 for part numbers Interface PCA The Interface PCA provides the interconnections between the F ormatter PCA the Control Panel and the DC Controller PCA Refer to Figure 5 1 and the Main Wiring diagram at the end of Chapter 7 Thelnterface PCA is located inside the Card Cage Assembl y and contains no active circuitry 5 16 Functional Overview Figure 5 5 Image Formation System Laser printing requires the interaction of several different technologies such as electronics optics and electrophotographics to provide a printed page Each process functions independently and must be coordinat
168. sion 4 Bad transparencies Transparencies can have this problem because they are not designed for proper toner adhesion 5 Bad Transfer Roller If the Transfer Roller has finger oils on its surface is dirty or is worn out this problem can result Check for the arrow on the paper wrapper Be sure paper is loaded with the arrow pointing UP in the paper cassettes or arrow pointing DOWN in the MP Tray Use 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 Clean the Transfer Roller using a dry lint free cloth DO NOT touch the Transfer Roller with your fingers If the problem persists replace the Transfer Roller Assembly Troubleshooting 7 27 BHuljooysajqnolL L Table 7 14 Background Scatter or Leading Edge Halo Possible Cause Recommended Action Random Background Scatter 1 Bad Media The moisture content conductivity Try a different media see HP LaserJet Printer or surface finish may not work correctly with the Family Paper Specifications Guide electrophotographic process 2 Inside of printer is dirty toner may have leaked Clean inside of printer see Chapter 4 Install a out of the toner cartridge new toner cartridge if leaking 3 Printing on envelope seams Printing on an Move the text to an area without seams If not
169. ssembly engages alignment pins 6 20 Removal and Replacement Figure 6 15 Right Side Assemblies Main Motor M1 The Main Motor is located adjacent to the Power Supply Unit Other than the covers the Main Motor assembly does not require removal of any other assemblies 1 Unplugthe cable connector from the top of the Main Motor Figure 6 15 Callout 1 2 Disconnect the Fuser cable from the Power Supply Unit Figure 6 15 callout 2 3 Remove 1 machine screw securing the right end of the cable tray and drop the cable tray downward out of the way Figure 6 15 callout 3 4 Remove 2 large diameter machine screws Figure 6 15 callout 4 5 The Main Motor is now free Lift it up and out of the printer being careful to clear any cables Main Motor To Reinstall Make sure that the shaft meshes properly with the gear Leave screws loose until both are started then tighten Removal and Replacement 6 21 9 juauls9e day PAO0UJ9H Main Drive Assembly The Main Drive assembly is located on the right side of the printer toward thefront 1 Remove 2 machine screws Figure 6 16 callout 1 2 Unplugthe Fuser connector from the Power Supply Unit Figure 6 16 callout 2 3 Lift out plastic cable shield and pull the cable tray out of the way Figure 6 16 callout 3 4 Carefully remove the e clip from the registration clutch shaft Figure 6 16 callout 4 5 Remove 1 screw from the registration clutch al
170. ssory 1 Remove U pper Cover see Figure 6 3 2 Remove delivery tray by removing 2 screws Figure 6 4 callout 1 3 Remove 2 screws Figure 6 4 callout 2 4 Using needlenose pliers remove the Static Charge Eliminator Figure 6 4 Static Charge Eliminator 6 10 Removal and Replacement Side Covers 1 Removethe Upper Cover Figure 6 3 o NOTE The left cover tab shown presses to the rear the right cover tab presses to 3 the front 2 g 3 Qo 2 Press on thetab to release the top edge of each side cover Figure 6 5 3 3 Tilt the cover outward and lift up Figure 6 5 Removing Side Covers To Reinstall Make sure the locator tabs at the bottom of the covers are properly placed in the alignment holes in the chassis before snapping covers into place Removal and Replacement 6 11 Rear Cover 1 Remove 1 machine screw Figure 6 6 callout 1 and 1 shoulder screw Figure 6 6 callout 2 2 Tilt the cover outward and lift off Figure 6 6 l ANN Removing Rear Cover To Reinstall Make sure the locator tabs at the bottom of the covers are properly placed in the alignment holes in the chassis before snapping covers into place 6 12 Removal and Replacement Left Side Assemblies O 9 Exhaust Fan FM1 FE O lt The Exhaust Fan is located on the left side of the printer just above the 3 2 High Voltage Power Supply PCA S 1 Unplugthe fan connector from the DC Controller Figure 6 7
171. st from air ventilation systems Site Requirements 2 3 G s u w nb y aus Space Requirements 49 2 in 1250mm 3 94 in 100mm EJ 7H m D s Optional Lower Cassette Figure 2 1 Printer Space Requirements Environmental Requirements Keep the printer within the following environmental conditions for optimum performance Table 2 1 Printer and Toner Cartridge Environmental Conditions Temperature 10 to 32 5 C 0 to 40 C 50 to 90 5 F 32 to 105 F Humidity 20 to 80 RH 10 to 95 RH with no condensation with no condensation 2 4 Site Requirements Operating Overview Chapter Contents Using the Control Pane 0 e e 3 3 Control Panel Layout o e eae 3 3 Indicator Lights o oo e eo 3 4 Control Panel Keys 0 e e e 3 4 Settings and Defaults o o llle 3 6 Setting the Display Language o o 3 6 Control Panel Menus o e e o 3 7 Printing Menu s s sa sacada akawa ue 3 8 PCL Menu cc ee meo o i ke ER ox i f X EOS OR eS 3 9 Ivi 3 10 Configuration Menu llle 3 11 Memory Configuration Menu llle 3 12 Parallel Menu lens 3 13 TestMenu a eaor maci Room momen koe RR Rode doe ego
172. t timeout for best performance If data from other ports appears in the middle of the print job increase the timeout value PAGEPROTCT AUTO You will not see this item unless the error ON has occurred See Chapter 7 for error message troubleshooting Factory default 3 10 Operating Overview Configuration Menu Configuration Menu items cannot be changed from software applications Table 3 8 Configuration Menu Items MP TRAY FIRST Draws paper from the MP Tray regardless of paper size this setting not recommended for shared environments CASS The MP Tray operates as a paper cassette Paper feeds automatically Paper size must be selected with the key because the MP Tray cannot sense the size of the paper The key works only when the MP Tray is set to MANUAL Operates only as a manual feed tray LOCK Locks out a tray or a combination of trays so the printer will not draw paper Lock out options depend on how the MP Tray is configured and whether an optional 500 sheet Lower Cassette LC is installed When the MP Tray L Or T or no and combinations optional Lower Cassette is installed no paper sources are available to be locked out All possible options are No trays or cassettes locked out The MP Tray is locked out The Paper Cassette is locked out The optional Lower Cassette is locked out Only the optional Lower Cassette is available Only the Paper Cassette is available MOIAJIMO Sunesado Only t
173. the Front Door 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 Front Door The start up sequence should rotate the drum enough to move the mark 5 Open the printer and inspect the 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 appear functional and the drum does not move replace the toner cartridge This test is especially important if refilled toner cartridges have been used Troubleshooting 7 33 Punoouse qnoa L High Voltage Power Supply Check The High Voltage Power Supply PCA provides the necessary voltages for the electrophotographic processes A method for verifying the high voltage system is given in the table below Table 7 20 High Voltage System Checks CHECKS ACTION 1 Toner cartridge connection Visually inspect the three connection points points on the inside left end of the toner cartridge If they are dirty or corroded clean the connections Clean using alcohol only If damaged replace the toner cartridge 2 High voltage contacts The high voltage contact springs mount on the High Voltage Power Supply PCA and protrude through the toner cartridge cavity to contact the toner cartridge Verify that the contacts are not dirty or corroded
174. this chapter If there is an image on the drum but not on paper replace the Transfer Roller Check the springs for functionality Clean if dirty replace if defective or missing 1 Remove and re seat the toner cartridge 2 Check the Laser Scanner shutter door for proper operation If defective replace the Laser Scanner Assembly 6 High Voltage Power Supply is defective Replace the High Voltage Power Supply PCA 7 DC Controller PCA is defective The DC Controller supplies the proper voltage to the High Voltage Power Supply PCA Replace the DC Controller PCA Troubleshooting 7 21 Table 7 5 Black Page Possible Cause Recommended Action 1 Defective toner cartridge Replace the toner cartridge 2 Light is leaking into the printer Ensure all covers are in place 3 High voltage contact springs are dirty or Inspect and clean the high voltage contacts If defective The high voltage contacts are damaged replace the High Voltage Power mounted on the High Voltage Power Supply PCA Supply PCA and protrude into the toner cartridge cavity 4 High voltage power supply circuit is defective Replace the High Voltage Power Supply PCA not supplying the correct negative voltage 5 DC Controller PCA is defective If the DC Replace the DC Controller PCA Controller turns ON the laser beam continuously the entire surface of the Photosensitive drum is neutralized causing a completely black page 6 Laser Scanner Assembly i
175. tt Packard cannot recommend use of non HP cartridges either new or remanufactured because they are not HP products and HP cannot influence or control their quality 1 22 Product Information Site Requirements Chapter Contents Operating Environment o les 2 3 Space Requirements es 2 4 Environmental Requirements e 2 4 Site Requirements 2 1 2 2 Site Requirements Operating Environment The environmental specifications listed in the Specifications section of Chapter 1 must be maintained to ensure the proper operation of this printer Consider the following points before installing the printer Install in a well ventilated dust free area Install on a hara flat and continuous surface with all four printer feet level Do not install on carpet or other soft surfaces Ensure adequate power is supplied Printer power requirements are listed under Specifications in Chapter 1 Install where there is stable temperature and humidity away from water sources humidifiers air conditioners refrigerators or other major appliances 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 Install with enough space around the printer for proper access and ventilation see Figure 2 1 Install printer away from the direct flow of exhau
176. tter PCA Note that adding memory SIM Ms may also increase print speed when printing complex graphics SIMM Slots The SIMM slots may be used to add memory fonts the PostScript Language SIMM or firmware upgrades The optional PostScript language SIMM can be installed in any of the SIMM slots on the Formatter PCA It allows the printer to automatically receive and print files configured in the Adobe PostScript language An additional 8 M bytes of memory is recommended for PostScript printing Non Volatile Memory NVRAM The printer uses NVRAM to storel O and print environment configuration information The contents of NVRAM are retained when the printer power is turned off or disconnected Disk Accessory The optional Disk Accessory is mounted on the rear of the Formatter PCA It can be used to permanently store downloaded Adobe PostScript fonts and forms in the printer The disk provides 42 8 M bytes of storage area for these functions 5 14 Functional Overview NOTE Memory Enhancement technology MEt The Hewlett Packard Memory Enhancement technology M et effectivel y doubles the standard memory through a variety of font and data compression methods MEt is only availablein PCL mode it is not functional when printing in PostScript 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
177. ued CET pei Tr ET RG5 1416 000 RG5 1417 000 RG5 1435 000 RG5 1442 000 RG5 1446 000 RG5 1447 000 RG5 1484 000 A 12 Parts Index Table A 2 Numerical Parts List continued RH7 1218 000 Fan FM3 Parts Index A 13 V xepu Sued Table A 2 Numerical Parts List continued ee COTO Tr 9 WT2 501 1 000 WT2 5018 000 XB1 2300 607 Screw BH3X6 S 36 108 XB1 2300 607 Screw BH3X6 S 108 A 14 Parts Index Numerical Parts List continued XB4 7400 809 XB4 7400 809 XB4 7401 007 XB4 7401 009 XB6 7300 809 XB6 7300 809 XB6 7300 809 XB6 7301 609 XD2 1100 242 XD2 1100 322 XD2 1100 402 XD2 1100 502 XD2 1100 502 XD2 1100 642 XD2 1100 642 XD2 1100 642 XD9 0079 000 XG9 0260 000 Description Screw Tap Binding Head M4X8 Screw Tapping Trus Head Screw Pan Head Self tap Screw Bind Head Self tap Screw Machine M3X8 Screw Machine M3X8 Screw Machine M3X8 Screw TP M3X16 Retaining Ring e type Retaining Ring e type Retaining Ring e type Retaining Ring e type Retaining Ring e type Retaining Ring e type Retaining Ring e type Retaining Ring e type Washer Wave Retaining Ring e type Parts Index A 15 V xepu Sued A 16 Parts Index I O Information CAUTION Figure B 1 Bi Tronics Parallel Cable Information TheBi Tronics parallel interface is compatible with Centronics parallel interfaces To take advantage of its enha
178. urn off in the Power Save mode after the Fuser cools down Funcional Overview 5 9 G M9IAI9AQ jeuonouny Figure 5 3 Formatter System The Formatter PCA is responsible for the following Controlling the Power Save mode Receiving and processing print data from the various printer interfaces Monitoring front control input and relaying printer status information through the front control and the Bi Directional 1 0 Developing and coordinating data placement and timing with the print engine Storing font information Communicating with the host computer through the Bi Directional Interface Interface PCA Formatter PCA SIMM Slots Additional RAM PostScript Firmware Upgrades Formatter PCA Block Diagram The Formatter PCA receives print data from the Bi Tronics I nterface and converts it into a dot image The DC Controller synchronizes the Image Formation System with the Paper F eed System and signals the F ormatter to send the print image data The Formatter sends the print image data dots in the form of a VIDEO signal and the printing process begins The Formatter PCA also provides mounting locations for the MIO PCA additional memory SIMMs the PostScript SIMM and the Disk Accessory 5 10 Functional Overview NOTE NOTE Power Save This user adjustable feature conserves power by shutting down the fuser and exhaust fans after the printer has been idle for 15 minutes 30 minutes 1 hour
179. urpose J401 2 J7002 2 MPASEN L when paper is detected tray paper sensor W301 e pote 44095 1401 6 J70026 IFTSNS L when intermediate plate is pressurization i pressurized sensing switch Fusing roller surface temperature SENTMP sensor Voltage becomes high when fixing 5V roller temperature becomes high Front doo dep ri MOPEN H when front door or paper delivery door is opened Delivery unit OPASEN L when paper is detected paper sensor UPCASO Upper ooh UPCAS1 sensing switch EAS UPCAS3 gt Cassette size sensing signal Figure 7 4 DC Controller Inputs 7 38 Troubleshooting Figure 7 5 Laser Scanner unit gt Laser diode Laser driver Scanner motor BDIC unit J7015 1 J7006 1 J7016 2 J7001 9 DC Controller PCA NDOUT L to tum laser ON 12V APCIN Inputs voltage proportional to the laser beam intensity LSRPOW Outputs an analog signal to adjust laser beam intensity 24V 24V SCNRDY Scanner motor READY signal ISCNON L to drive scanner motor SCNCLK Scanner motor standard CLOCK signal BDIN Beam detect signal 24V Bunoouse qnoa L J502 2 J7001 2 J502 3 J7010 1 J7001 3 J1 1 J7017 1 TT fAHV1AC L to tum primary high voltage AC ON HV1DC L to tum primary high voltage DC ON HV2AC L totum developing bias AC ON HV2DC L totum developing bias DC ON fHV3NV Tr
180. ve when exposed to light 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 5 18 Functional Overview Drum Cleaning The cleaning blade is in contact with the surface of the drum at all times As the drum rotates during printing excess toner is stored in the waste toner receptacle Figure 5 7 Cleaning Waste Toner Blade Receptacle Toner Cartridge Photosensitive Drum Drum Cleaning Functional Overview 5 19 G M9IAJ9AQ jeuonouny Drum Conditioning After the drum is physically 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 located in the toner cartridge 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 potential In addition a negative DC bias is applied by the charging roller to create a uniform negative potential on the drum surface The amount of DC voltage is modified by the print density setting Figure 5 8 Primary charging roller E AC bias Photosensitive Drum f DC bias 177 Prima
181. y 5 14 O on line key 3 5 light 3 4 one year return 1 22 operating environment 2 3 operating overview 3 1 3 24 operation basic sequence 5 28 optional cassette capacities 1 4 optional lower cassette default paper source 5 25 guide 5 25 installing 6 7 paper feed system 5 25 pickup arm 5 27 printing 5 27 reinstalling 6 44 removal and replacement 6 7 optional printer memory 1 3 ordering related documentation 1 19 ordering consumables 8 4 ordering parts 1 16 8 3 orientation portrait vertical and L means landscape 3 8 ORIENTATION printing menu item 3 8 output described 5 13 output components 8 18 overcurrent dc protection circuitry 5 5 devices 5 5 protection 5 5 overhead transparencies 1 9 7 27 overhead transparency specifications 1 9 overview operating 3 1 3 24 overvoltage devices 5 5 protection 5 5 ozone emission C 3 P page count setting 3 15 3 17 3 20 page coverage 5 1 17 page protect available memory 7 15 described 5 15 disabled 5 15 page buffer 5 15 PCL printing 5 15 selection 7 11 setting 7 11 7 15 7 28 page usage monthly 1 3 PAGEPROTCT seepage protect PAGEPROTCT job menu item 3 10 PageProtect see also 21 PRINT OVERRUN paper selection 3 8 paper capacities 1 3 1 4 paper cassette 1 11 1 12 1 15 guide 6 7 7 29 jam 7 8 loading 7 30 7 35 messages 7 10 optional lower cassette 5 25 overload 7 29 printing 5 27 replacement 8 5 paper curl 7 35 pap
182. y N A 19 Face Down Delivery Assembly FRas o198 000 86 Fan FM T emm wwwmem e 9 o mote um O esa es 7 Formatter PCA C3143 67901 14 Front Door Assembly 19 Fuse raven Woro es mo Fus 250v 35A woroces is1 es mor 18 Fusing Assembly 100 115V RG5 1420 000 Fusing Assembly 220 240V RG5 1406 000 8 4 11 Gear Mounting Assembly RG5 1396 000 ee Gear 21T 40T AS5 0187 000 Gear 25T 33T RS5 0576 000 Parts Index A 3 V xepu Sued Table A 1 Alphabetical Parts List continued Description Gear 34T RS5 0186 000 Guide RF5 0396 000 14 Guide Cartridge RF5 1142 000 14 Guide Cassette RB1 1273 000 1 00 A 00 A 22 Guide Connector RB1 1429 000 Guide Delivery Unit RG5 1545 000 amp 6 Guide Entrance RF5 1150 000 Guide Paper RF5 0395 000 Guide Plate Protection RF5 1141 000 8 La A 4 a 7 2 Holder Cable 10 HV Power Supply Assembly fRas 1435 000 89 Knob Print Density Label Caution High Temp 27 Laser Scanner Assembly FRas 1383 000 89 Left Foot Assembly 11 fier enm er e swe Fapersoming nenne es o Lever Sensor Delivery RF5 0400 000 8 4 17 10 13 7 Lever Sensor Front REG RF5 0397 000 Main Drive Assembly A 4 Parts Index Table A 1 Alphabetical Parts List continued Description Motor DC 17 5W RH7 1199 000 ss Mount RA1 7563 000 Mount Rod RA2 0418 000 Multi purpose Tray Assembly 100 115V R
183. y Power Distribution 5 4 Functional Overview AC Power Distribution TheAC power circuitry supplies AC voltage whenever the power cord is connected to the AC power source and the power switch is turned ON A toner cartridge must be installed and the front door dosed before voltage is supplied tothe Power Supply circuits the DC Controller the Main Motor or the Fusing Assembly Overcurrent Overvoltage Protection There are three overvoltage overcurrent devices in this printer Theresettable circuit breaker CB 101 shuts off AC input power to the Power Supply Unit in case of an AC overcurrent condition To reset remove the Upper and Right side covers and push on the small round button located directly above the ON OFF switch Fuse F 101 shuts off AC input power to the 24V DC and 45V DC power Circuits To check or replacethe fuse requires the removal of the Power Supply Unit In addition the 24V DC and 45V DC power circuitry contains an overcurrent protection circuit which automatically shuts off the output voltage when an overcurrent condition occurs due to a short or abnormal voltage on the load side The protection circuit automatically resets after the input power is cyded OFF for at least 3 minutes then ON G M9IAJ9AQ jeuonouny Functional Overview 5 5 High Voltage Power Distribution The High Voltage Power Supply PCA applies an overlap of DC and AC voltage to the primary charging roller and the developing roller Thi
184. ype indicates text as seen on a computer monitor indicates keys on a computer keyboard or on the printer control panel Examples include FE ETS and EZ Notes contain important information set off from the text Caution messages alert you to the possibility of damage to equipment or loss of data Warning messages alert you to the possibility of personal injury Chapter Descriptions 1 Product Information Orientation to the printer as well as the service and repair philosophy is discussed Information on obtaining assistance and warranty is also here 2 Site Requirements Here are recommendations pertaining to installation requirements 3 Operating Overview This chapter has detailed information about the Control Panel Sample self tests and printer reset information are also included 4 Maintenance Turn tothis chapter for information about printer cleaning 5 Functional Overview Here you will find the basic theory of operation information required to understand the various printer systems and how they function together 6 Removal and Replacement This chapter contains the step by step procedures for replacing printer field replaceable units FRUs Assemblies are grouped by location in the printer 7 Troubleshooting Diagnose printer problems here Preliminary troubleshooting table is followed by error messages image defect samples and diagnostic tools 8 Parts and Diagrams Look here to find any field replace

HP LaserJet 4V / 4MV (C3141A / C3142A)

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