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Canon 3260 Printer User Manual

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Contents

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2. From fixing unit Registration Electrical 2 5 paper sensor unit fan Tcu Operation Laser driver Sc
3. Envelope feeder pick up unit PAPER PICK UP FEED SYSTEM CHAPTER 2 B Basic Operation Sequences Operation sequences of the printer are controlled by the microcomputer on the DC controller PCB Descriptions of each period from ON until the main motor stops are as shown below See the appendix for timing chart Table 2 1 1 Period Purpose Remark WAIT WAIT period From power ON until the fixing roller temperature reaches 170 C Less than 90 sec Warms up the fixing rollers to put the printer in the standby mode Cleans the transfer charging roller During this period the printer checks if the car tridge is installed and if there is toner in it STBY STANDBY From the end of the WAIT period until a PRNT signal is input from the video controller or from the end of the LSTR period until a PRNT signal is input from the video controller or until the power is switched OFF Maintains the printing temperature of the fixing roller so that the printer is ready to print If the printer stays in the standby mode for longer than five hours it drives the main motor for one second to rotate the fixing roller to prevent it from deforming INTR INITIAL ROTATIONS period After the PRNT signal has been input from the video controller until the scanner motor becomes ready about 7 seconds To stabilize the sensitivity of the drum in preparati
4. 158 J14 1 J209 5 peypi paper 7 i 3 3 REGS sensor 2 Pick up PCB 252 13 l PSVBI 11201 4 J219 1 unit jJ 0 1219 18 1 paper sensor N 1 3 5 14 8 FEEDS 143 12061 P5VBl 1 Paper pick up vL Ic 22 2 GND unit door EI 3 RDOORS 6 16 sensor i l PS1201 Lower cassette 12 0 sensor 1202 Upper cassette 16 6 UpECKC sensor 51203 Lower cassette l 40 42 paper level LPVS2 sensor 1 81204 Lower cassette 7 43 paper level LPVS1 sensor 2 51205 Upper cassette 8 44 _ paper level UPVS2 sensor 1 PS1206 Upper cassette 5 45 paper level UPVS1 sensor 2 81207 Lower cassette 9 41 paper out LDECKS sensor PS1208 Upper cassette I 45 5 paper out UDECKS sensor tt ces se Multi purpose tray PCB ee i Multi purpose a a EE tray paper 1301 7 J214 7 MPTPS P81302 ifti s 3 vens P 9 3 psypi Figure 2 2 2 L when the sensor detects paper L when the sensor detects paper H when the pick up unit door is open H when the sensor detects the lower cassette H when the sensor detects the upper cassette These sensors detect the amount of paper remaining
5. UPPER DOOR OPEN SENSE signal FACE DOWN TRAY PAPER FULL SENSE signal FIXING UNIT DELIVERY SENSE signal FACE DOWN TRAY DELIVERY SENSE signal FACE UP SOLENOID DRIVE signal GND GND BDI 5V GND BEAM DETECTION INPUT signal Connector Abbreviation APPENDIX Signal name J207 5V SCNRDY SCND GND SCNCLK 24VGND 24VA SCANNER MOTOR READY signal SCANNER MOTOR DRIVE signal SCANNER MOTOR CONTOL CLOCK signal FAN1D 15 24VGND FAN MOTOR 1 DRIVE signal FAN MOTOR 1 ROTATING DETECTION signal REGCLD 24VA REGS GND REGISTRATION CLUTCH DRIVE signal REGISTRATION PAPER SENSE signal FAN3D FAN3S 24VGND FAN MOTOR 3 DRIVE signal FAN MOTOR 3 ROTATING DETECTION signal 3 3V 5V GND FSRTH GND SVIN SVOUT 24VA FIXING ROLLER TEMPERATURE SENSE signal SERVICE STATUS signal SERVICE COMMAND signal 24VA 24VA DUPIDS DUPSTS DUPCMD DUPCLK 24VGND 24VGND DUPLEXING UNIT SENSE signal DUPLEXING UNIT STATUS signal DUPLEXING UNIT COMMAND signal STATAS CLOCK signal 24VGND 24VA MPTCLD MPTSLD MPTLS MPTPS ENVCMD ENVSTS 00 MANUAL FEED CLUTCH DRIVE signal LIFTING PLATE SOLENOID DRIVE signal LIFTING PLATE SENSE signal MULTI PURPOSE TRAY PAPER SENSE signal ENVELOPE FEEDER COMMAND signal ENVELOPE FEEDER STATUS signal amp _
6. 24VB 24VB 24VB TSWOUT FSRTH GNDTH TSWIN FIXING ROLLER TEMPERATURE SENSE signal TONSNS GND TONER LEVEL signal FAN4D FANAS 24VGND GND FAN MOTOR 4 DRIVE signal FAN MOTOR 4 ROTATING DETECTION signal YN WDNR WD 5 FANS5 24VGND 24VGND FAN MOTOR 5 DRIVE signal FAN MOTOR 5 ROTATING DETECTION signal APPENDIX This page intentionally left blank IV MESSAGES TABLE Message Meaning APPENDIX Action COLD RESET Displays when the COLD RESET Letter or A4 Power On sequence is selected No action required although the printer will be reset to its factory defaults and any unique settings will have to be reset COLD RESET A4 Displays when Factory Reset A4 Power on sequence is selected No action required COLD RESET LTR Displays when Factory Reset LTR Power on sequence is selected No action required CONTEXT SAVE ADJUSTED Context Saving mechanism modified by OS Displayed when printer powered on with con text saving enabled but due to manual recon figuration there is not enough memory to support it Press Continue key to continue CONTEXT SAVE CHANGE Context saving mechanism modified by USER Displayed when going online after modifying context saving Press Continue and printer will reboot to enable its new state WARMING UP Printer is warming up Wait un
7. on the photosensitive drum Action Replace the cartridge 2 Upper fixing roller is defective Action Replace the upper fixing roller II 13 Poor fixing Possible causes 1 The envelope position lever of the fixing unit is raised Action Push down the lever 2 The nip width of the fixing unit is not correct Action Replace the fixing unit 3 The fixing roller surface is damaged or dented Action Replace the roller 4 The lower fixing roller is dirty Action Clean the roller If it cannot be cleaned replace the roller 5 The thermistor has deteriorated Action Replace the thermistor II 14 Image distortion Possible causes 1 Connectors on the DC controller PCB are loose Action Reconnect the J202 J206 and J207 connectors properly 2 The laser scanner unit connectors are loose Action Reconnect J1001 J1 and J6 3 The laser scanner unit is faulty Action Replace the laser scanner unit 4 The DC controller PCB is defective Action Replace the DC controller PCB Problem location Table 4 2 2 CHAPTER 4 Periods of appearance of dirt blank spots on images Diameter mm Period on image mm Phenomenon Blank spot Dirt on back of paper Poor fixing Transfer charging roller 17 15 About 54 Upper fixing roller 45 About 141 Lower fixing roller 32 About 100 Pick up roller 24 About 75 Feed roller 2
8. 2 3 ENGINE CONTROL SYSTEM 2 4 A DC Controller Circuit 2 4 B Fixing Control 2 10 C High Voltage Power 2 16 D Power 2 19 E Video Interface Control 2 21 F Other Controls 2 23 LASER SCANNER SYSTEM 2 26 2 26 PREFACE 3 1 EXTERNALS 3 2 A Locations 3 2 B Control Panel Unit 3 7 MAIN UNITS 3 8 A Laser Scanner Unit 3 8 B Drive Unit 3 8 C Pick up Unit 3 9 D Multi purpose Tray Pick up 3 12 E Registration Roller Unit 3 12 Delivery Unit 3 13 Fixing Unit 3 13 Feed Unit 3 14 IV IV B Laser Control Circuit 2 27 C Scanning System 2 30 IMAGE FORMATION SYSTEM 2 32 A 2 32 B Printing Process 2 34 PICK UP FEED SYSTEM 2 42 A Outline eere 2 42 B Paper Pick up 2 45 C Fixing and Delivery Unit 2 57 D Paper Jam Detection 2 59 OVERALL CONTROL SYSTEM 2 61 A Video Controller 2 61 B Contr
9. 50 0 AOUN amp KPI WBN KPI TF _ OTE GND LSIZE4 LSIZE3 LSIZE2 LSIZE1 LOWER CASSETTE PAPER SIZE SENSE signal LOWER CASSETTE PAPER SIZE SENSE signal LOWER CASSETTE PAPER SIZE SENSE signal LOWER CASSETTE PAPER SIZE SENSE signal A 7 APPENDIX Connector Abbreviation Signal name J215 GND USIZE4 USIZE3 USIZE2 USIZE1 UPPER CASSETTE PAPER SIZE SENSE signal UPPER CASSETTE PAPER SIZE SENSE signal UPPER CASSETTE PAPER SIZE SENSE signal UPPER CASSETTE PAPER SIZE SENSE signal FAN2D FAN2S 24VGND FAN MOTOR 2 DRIVE signal FAN MOTOR 2 ROTATING DETECTION signal N FSRTH RLD TSWIN GND TSWOUT FSRD1 FSRD2 FSRDE FSRCT SUPSLT RLDSNS PSTYP REMT24 N C FIXING ROLLER TEMPERATURE SENSE signal RELAY DRIVE signal FIXING MAIN HEATER DRIVE signal FIXING SUB HEATER DRIVE signal FIXING HEATER DRIVE ENABLE signal FIXING HEATER CURRENT SENSE signal INVERTER CIRCUIT CONTROL signal RELAY DETECTION SENSE signal POWER SUPPLY TYPE SENSE signal 24V DRIVE signal MMRDY MMOTD 24VGND 24VGND 2 2 MAIN MOTOR READY signal MAIN MOTOR DRIVE signal Q FEDAND FEDAD FEDBND FEDBD UDECKS UDECKC FEEDCLD FEEDS PUPSLD LDECKC LDECKS L
10. STACKER COVER OPEN Stapler stacker top or front stapler door cover is open Close all cover doors SORTER COVER OPEN Sorter top or front cover is open Close all cover doors PAPER JAM WRONG PAPER SIZE A paper size mismatch has occurred More than one paper size has been found in the same tray Inspect the trays for mismatched paper and correct Remove all jammed paper and insert the cor rect paper size in the tray Close all covers to go back to READY CHECK INPUT TRAY A paper jam occurred near the input tray OPEN FRONT COVER A paper jam occurred near the front cover OPEN LEFT COVER A paper jam occurred near the left cover OPEN RIGHT COVER A paper jam occurred near the right cover OPEN TOP COVER A paper jam occurred near the top cover Check the area specified 1 PAPER JAM Paper jam has occurred somewhere in the paper path 2 PAPER JAM Paper jam has occurred in the input paper path 3 PAPER JAM Paper jam has occurred in the input paper path 4 PAPER JAM Paper jam has occurred in the fixing unit area 5 PAPER JAM Paper jam has occurred in the fixing unit area 6 PAPER JAM Paper jam has occurred near the face down tray 7 PAPER JAM Paper jam has occurred near the face down tray 8 PAPER JAM Paper jam has occurred in the fixing unit area 9 PAPER JAM A 16 Paper jam has occurred near
11. 4 Completes the test If an error is reported from the engine controller at this point it will be displayed in the LCD 5 Displays READY in the LCD and prints the PCL demo page automatically 2 Power ON key sequence Pressing specified keys simultaneously at the power ON executes the specific functions Among the following operations only the Cold Reset sequence is for the user a Cold Reset Turn ON the printer with the On Line key pressed The Cold Reset resets all the printer settings to the factory default values b Check Sum Functions Turn ON the printer with the On Line and Enter keys pressed PPG Check Sum Or turn ON the printer with the On Lien and Reset keys pressed PS Check Sum The printer performs the check sum on the requested ROM bank The calculated check sum will be displayed in the LCD c Factory Reset Function A4 LTR To reset the paper size default to A4 turn ON the printer with the Menu Item and Shift keys pressed To reset the paper size default to Letter turn ON the printer with the Menu Item and Plus Minus keys pressed The printer uses the selected paper size A4 Letter as the default value resets the page count to 0 and executes the Cold Reset The Cold Reset executed hereafter will maintain the paper size selected here d Panel Check Function The Panel Check Function performs the control panel diagnosis and test sequence sequences in the Panel Check Function are as follows
12. Paper Lower fixing roller DC bias A Figure 2 4 12 The upper and lower fixing roller surfaces are covered with teflon tubes with a very low adhesive property The negative DC bias is applied to the upper fixing roller to prevent the toner from adhering to the rollers Step 7 Fixing roller cleaning Upper roller Figure 2 4 13 In the fixing stage not all the toner particles are fixed to the paper In some cases toner parti cles on the back of the paper are adhered to the lower roller The fixing cleaning roller cleans the lower fixing roller by attracting the residual toner on the lower fixing roller CHAPTER 2 5 Drum cleaning stage In the transfer stage not all the toner is transferred to the paper Some remains on the photo sensitive drum This residual toner is cleaned off in the drum cleaning stage so that the next print image will be clear and distinct Step 8 Drum cleaning Cleaning blade Cleaner container Sweeper strip Figure 2 4 14 The residual toner on the drum surface is scraped away with the cleaning blade to clean the drum surface in preparation for the next print The removed toner is collected in the cleaner container CHAPTER 2 PICK UP FEED SYSTEM A Outline Presence of paper on the multi purpose tray is detected by the multi purpose tray paper sensor PS1301 and presence of paper in the upper and lower cassettes is detected by the cassette paper out sensor PS1
13. The specified upper cassette 2x500 sheet Reinsert the upper cassette A 15 APPENDIX Message Meaning Action deck is missing DECK2 MISSING The specified lower cassette 2x500 sheet deck is missing Reinsert the lower cassette OUTPUT FULL STD TRAY The specified face down tray is paper full Remove the paper from the face down tray OUTPUT FULL CHECK BIN 1 The specified output tray of the stapler stack er is paper full Remove the paper from the tray Bin1 of the stapler stacker OUTPUT FULL CHECK BIN 2 The specified output tray of the stapler stack er is paper full Remove the paper from the tray Bin2 of the stapler stacker OUTPUT FULL CHECK BIN 3 The specified output tray of the stapler stack er is paper full Remove the paper from the tray Bin3 of the stapler stacker OUTPUT FULL SORTER BIN UP The specified output bin face up bin of the sorter is paper full Remove the paper from the tray CHECK SORTER BIN REMOVE ALL PAPER For use only when the sorting mode of the sorter is selected Any or all of the bins of the sorter are paper full or not empty Remove the paper from all the bins bin 1 to 7 of the sorter PRINTER OPEN Top right or left side cover is open Close all cover doors COVER OPEN 2 000 sheet or 2x500 sheet deck right cover paper path is open Close the right cover door
14. 1 The FM4 drive signal line connector is loose Action Reconnect connector J225 on the DC controller PCB and connectors J25 and J26 2 The fixing unit fan is defective Action Disconnect connector J225 on the DC controller PCB Turn the power switch ON and measure the voltage between connector J225 1 FAN4D and 4225 3 GND on the DC controller PCB If the voltage changes from 0 to more than 18V replace the fixing unit fan 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 11 13 5 ERROR FAM 5 CALL FOR SERVICE Multi purpose tray pick up unit fan FM5 failure Possible causes 1 The FM5 drive signal line connector is loose Action Reconnect connector J229 on the DC controller PCB and connectors J34 and J35 2 The multi purpose tray pick up unit fan is defective Action Disconnect connector J229 on the DC controller PCB Turn the power switch ON and measure the voltage between connector J229 1 FAN5D and J229 3 GND on the DC controller PCB If the voltage changes from 0 to more than 18V replace the multi purpose tray pick up unit fan 3 The DC controller PCB is defective CHAPTER 4 Action Replace the DC controller PCB VI 12 14 1 ERROR AUX TRAY CALL FOR SERVICE Lifting plate failure Possible causes l Lifting plate drive unit parts are damaged Action Replace any damaged parts 2 The lifting plate position sensor is defective Action Check the sensor state using the
15. A 11 APPENDIX Message Meaning Action envsize RESETTING PRINT ER Displays when TEST RESET PRINTER item is selected No action required RESTORING DEFAULTS Displays when TEST FACTORY DEFAULTS item is selected No action required MEMORY OVER FLOW Memory overflow The printer received more data than it can fit into its available memory This can happen if too many soft fonts macros or graphics which are too complex are received The job will resume after 10 sec if AUTOCONT is ON Otherwise press the Continue key to resume printing Check the page that ejects since the page be requested Also simplify the job or add additional memory onds could not processed READY MRT COMPRES SION Printer has invoked MRT Compression because of lossy compression No action required FORMAT DISK IGNORE DISK Either a request has been made to format the disk or the printer has determined that the disk needs formatting engin a new unformat ted disk is installed when power up Press to format the disk or press to ignore the disk For new unformatted disk If press to ignore disk the printer goes to READY Any attempt to write to the disk will be flushed since the disk has not been formatted REALLY FORMAT IGNORE DISK The operator is being asked to verify the disk formatting is really wanted This is in response to the foregoing message
16. L through the gate array When it goes the scanner driver rotates the scanner motor using the SCNCLK signal When the scanner motor reaches its prescribed speed the scanner driver sets the SCANNER MOTOR READY signal SCNRDY signal to L The CPU on the DC controller PCB monitors the SCNRDY signal to make sure that the scan ner motor runs at the correct speed The CPU notifies the video controller of a scanner failure in the following cases a When the SCNRDY signal does not become L within 30 seconds after the scanner motor starts rotation b When the SCNRDY signal goes for 1 5 continuous seconds after going L CHAPTER 2 This page intentionally left blank 2 31 CHAPTER 2 IV IMAGE FORMATION SYSTEM A Outline The image formation system is the central hub of the printer and consists of the photosensitive drum developing unit and charging roller etc When the PRINT signal PRNT is sent from the video controller to the DC controller the DC controller drives the main motor to rotate the photosensitive drum with the laser diode devel oping cylinder primary charging roller and transfer charging roller The primary charging roller uniformly applies a negative charge on the surface of the photo sensitive drum To form a latent image on the photosensitive drum the laser beam modulated by the VIDEO signals VDO VDO is exposed to the photosensitive drum surface The latent image formed
17. gt 5 MD24 VCC gt N C BMAO gt 3 BMA1 BMA2 gt 4 gt 5 BMA10 N C MD23 MD22 MD21 MD20 D8 MD19 MD18 D6 MD17 BMA7 D4 N C VCC D2 BMA9 DO nBAS3 nBAS2 A20D MD16 N C GND gt gt gt gt gt gt gt gt o o oj o 5jo v 2 o MD15 MD14 AA26 GND nBCAS3 AA24 nBCAS1 nBCASO AA22 nBCAS2 nBCAS2 AA20 nBCAS3 N C AA18 WRITE N C AA16 MD13 MD12 AA14 MD11 MD10 AA12 MD9 MD8 AA10 N C MD7 8 MD6 MD5 MD4 nRCSOD MD2 nRCS2 MD1 MDO nWRO N C N C nWR1 N C N C DO GN D1 GN D2 GN D3 GN 04 GN D5 GN D6 GN D7 GN nACK GN BUSY GN PERROR GN SELECT nINIT nAUTOFD nFAULT N C N C GND N C GND N C jN N ojojoj aja Avl Nj host computer nSELIN VCC N C N C N C nCLKEN nRETURN nSPCHG nPRINT Optiona
18. 1 Turn ON the printer with the On Line and Shift keys pressed PANEL CHECK message will appear in the LCD 2 Step 3 to 11 can be executed as many times as you wish in any order 3 Pressing the On Line key illuminates the top left half of the LCD 10 columns Releasing the key will clear the display 4 Pressing the Continue key illuminates the top right half 10 columns of the LCD Releasing the key will clear the display 5 Pressing the Form Feed key illuminates the top line of the LCD 20 columns Releasing the key will clear the display 2 66 CHAPTER 2 6 Pressing the Reset key illuminates the every other column of the top line of the LCD Releasing the key will clear the display 7 Pressing the Enter key displays OPERATION CHECK message Releasing the key will clear the message 8 Pressing the Menu key displays OPERATION CHECK message Releasing the key will clear the message 9 Pressing the Item key displays OPERATION CHECK message Releasing the key will clear the message 10 Pressing the Shift key illuminates the top line of the LCD 20 columns Releasing the key will clear the display 11 Pressing the Plus Minus key displays OPERATION CHECK message Releasing the key will clear the message 12 When all the keys have been tested PANEL CHECK DONE message appears and the DISK STAPLE and CONTINUE LEDs keep flashing The message starts to move in circles in about 60 seconds This conditions is kept
19. 5 Remove the E ring and then the feed clutch Claw 2 Clutch fixing plate E ring Feed clutch Figure 3 6 4 D Registration Clutch 1 Remove the registration roller unit fol lowing steps 1 5 on Page 3 12 2 Remove the E ring and the registration clutch 0 E ring Registration clutch Figure 3 6 5 CHAPTER 3 E Lifting Plate Solenoid 1 Remove the multi purpose tray pick up unit following steps 1 6 on Page 3 12 2 Disconnect the connector 3 Remove the screw and then the lifting plate solenoid Connector Q Screw Lifting plate solenoid Figure 3 6 6 CHAPTER 3 F Cassette Pick up Solenoid 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Disconnect the connector 3 Remove the screw and take out the cas sette pick up solenoid E aS Connector Screw G Cassette pick up solenoid Figure 3 6 7 G Face up Solenoid Unit 1 Remove the delivery unit following steps 1 7 on Page 3 13 2 Disconnect the connector 3 Remove the screw and then the face up solenoid unit Connector Q Screw G Face up solenoid unit Figure 3 6 8 CHAPTER 3 5 A Locations Main motor Pick up motor Fixing unit scanner unit fan Power supply fan Electrical unit fan Fixing unit fan Multi purpose tray pick up unit fan Figure 3 7 1 CHAPTER 3 1 2 Connector Main motor Main Motor Re
20. FM2 electrical unit fan FM3 and fixing unit fan at half speed When it receives a PRNT signal from the video controller the CPU rotates FM1 FM2 FM3 and 4 at full speed and FM5 at half speed full speed in case of duplex printing When the main motor drive stops after printing the CPU rotates FM2 and at full speed for about 30 seconds then at half speed The CPU rotates FM5 at half speed for about 30 sec onds full speed for about 30 seconds in case of duplex printing The drive voltages output from the fan motor drive circuit and multi purpose tray fan motor 2 24 CHAPTER 2 drive circuit switch the fun motor rotation speed between full and half speed The CPU assesses a fan motor failure and reports it to the video controller if the FAN LOCK DETECTION signals FAN1S FAN2S FANS3S FAN4S FANDS stay L for about 1 5 sec onds or more for 3 times at 5 seconds intervals while the fan motors are ON CHAPTER 2 III LASER SCANNER SYSTEM A Outline External device I Video controller PCB IBD NSYNC NDO VDO DC controller NDO VDO LENBL LON DRVES SCND SCNRDY BDI driver BD mirror Oylindrical lens Scanner motor Scanning mirror Focusing lens BD PCB Photosensitive drum Figure 2 3 1 The DC controller PCB receives the VIDEO signals VDO VDO from the video controller PCB and sends then to the laser driver in the laser scanner unit
21. Note the lengths diameters and locations of screws as you remove them When reassem bling the printer be sure to use them in their original locations 5 As a general rule do not operate the printer with any parts removed 6 Discharge electrical static from your body by touching the metal frame of the printer prior to handling the PCBs in order to avoid causing damage by the difference in static charge at that time CHAPTER 3 II EXTERNALS A Locations 2 Operation panel unit 3 Face down tray 4 Upper cover 6 1 Upper cover unit 5 Right rear cover Multi purpose tray 7 Pick up unit door 8 Duplexing unit door 9 Front cover 10 Delivery cover unit 11 Face up tray 12 Left lower cover 13 Left rear cover 14 Rear cover Figure 3 2 1 Follow the procedures below to remove the cover s as required when cleaning inspecting or repairing inside the printer The procedures for the covers which can be removed simply by removing screws without removing other parts are omitted 1 Face down tray 1 Open the upper cover 2 Holding the knob remove the lock lever Close the upper cover and then take out the face down tray D Upper cover 2 Knob Lock lever 9 Face down tray Figure 3 2 2 2 Front cover 1 Remove the upper cassette 2 Open the upper cover 3 Open the duplexing unit door 4 Remove the 3 screws Duplexing unit door Screws Figu
22. Paper level Sensor 2 Upper Cassette Paper level Sensor 1 Upper Cassette Paper level Sensor 2 Lower Cassette Paper out Sensor Upper Cassette Paper out Sensor Remove the pick up PCB following steps 1 3 on Page 3 44 1 CHAPTER 3 Multi purpose Tray Paper Sensor Lifting Plate Position Sensor Remove the Multi purpose tray PCB fol lowing steps 1 7 on Page 3 44 CHAPTER 3 K Face down Tray Paper Full Sensor Face down Tray Delivery Sensor Fixing Unit Delivery Sensor 1 Remove the switch sensor PCB follow ing steps 1 11 on Page 3 45 CHAPTER 3 VI CLUTCHS SOLENOIDS A Locations QR Multi purpose tray pick up clutch 2 Feed clutch Registration clutch Lifting plate solenoid Cassette pick up solenoid Face up solenoid Figure 3 6 1 CHAPTER 3 B Multi purpose Tray Pick up Clutch 1 Remove the multi purpose tray pick up unit following steps 1 6 on Page 3 12 2 Disconnect the 2 connectors 3 Remove the 2 screws the clutch cover unit and then the multi purpose tray pick up clutch Connector Q Screws Clucth cover unit Multi purpose tray pick up clutch Figure 3 6 2 C Feed Clutch 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Disconnect the connector 3 Remove the screw and disconnect the 2 claws to remove the pick up PCB Connector 2 Screw Claws Pick up Figure 3 6 3 4 Undo the claw and remove the clutch fixing plate
23. Pick up roller shaft Pick up roller shaft fixing arm s xi Lift up release arm Lifter diu ON a Print paper tO E 9 7 Paper lifting plate Lift up arm Completion of lift up operation LXE Figure 2 5 11 CHAPTER 2 2 Paper level is lower than certain level the paper level lowers the moving distance of the pick up roller increases When the moving distance reaches the specified value the pick up roller shaft pushes the lift up release arm and the lift up cam is unfixed Certain paper level Pick up roller shaft Pick up roller shaft fixing arm TN e Moving distance of pick up roller Lift up release arm mle gear Ee 22 pe Print paper SS SE IC N lt 4 X an Paper lifting plate Lift up arm Lift up cam Cassette pick up roller shaft Less than certain paper level Figure 2 5 12 CHAPTER 2 When the lift up cam is unfixed the lift up arm lifts up the lifter gear one tooth by the rota tion of the lift up cam The paper lifting plate is lifted up by repeating the operation See Figure 2 5 10 When the paper on the paper lifting plate touches the pick up roller the pick up roller shaft is lifted up Then the fixing arm is released and the lift up release arm lifts up the pick up roller shaft to the waiting position by force of the spring At the same time the pick up ro
24. Press to verify that the disk is to be formatted or press to skip formatting the disk This message will not display for new unfor matted disk engin The disk is to be formatted for the 1st time START DISK TEST Start testing the hard disk Press Enter to start disk testing Note This operation will cause the disk to format when press enter to end test If the printer is powered off during the disk test the message FORMAT DISK IGNORE DISK will appear when the printer is powered on ENTER ENDS TEST Stop testing the hard disk Press Enter to end disk testing Note The disk will be format ted and the printer will reboot automatically when press Enter to end disk test FORMATTING This message displays when the disk is being formatted No action required DSK FMT RESTART A 12 The operator has formatted the disk and the operation has completed The system will Press the Continue key for the printer to reboot Message Meaning APPENDIX Action restart after the continue key is pressed DISK ALMOST FULL Warning message when the Disk is 70 full Delete pcl ps fonts macros files or format the disk to clear the message The message doesn t clear with power cycle or COLD RESET This message has lower priority than printer error mes sages such as toner low or memory overflow DISK FULL Disk is 95 full The printer goes offline also
25. Remove the fixing unit following steps 1 2 on Page 3 13 2 Disconnect the 2 claws that hold the wire cover to the fixing unit and then remove the wire cover Claws Q Wire cover Figure 3 4 10 3 Unhook the claw and then remove the fixing entry guide Claw 2 Fixing entry guide Figure 3 4 11 4 Take out the 4 connectors Connectors Figure 3 4 12 5 Disconnect the heater claw of the hold er and remove the holder Then gently pull out the fixing heater from the fixing upper roller Claw Heater holder G Fixing roller heater Figure 3 4 13 1 2 3 4 CHAPTER 3 Fixing Upper Roller Remove the fixing unit following steps 1 2 on Page 3 13 Hold up the left and right levers in the direction of the arrow Remove the 2 screws Remove the claw then remove the sepa ration upper guide while pulling out the separation lower guide Fixing unit fastening levers Screws Claw Separation lower guide amp Separation upper guide Figure 3 4 14 5 Remove the E ring and the spring then pull out the separation lower guide toward you and slide it off in the direc tion of the arrow E ring Spring G Separation lower guide Figure 3 4 15 6 Remove the fixing roller heater following steps 2 5 on Page 3 18 7 Remove the thermoswitch following step 3 on Page 3 25 8 Remove the thermistor following steps 3 4 on Page 3 26 CHAPTER 3
26. Replace the transfer charging roller The high voltage power supply PCB is defective Action Replace the high voltage power supply PCB DC controller is defective Action Replace the DC controller PCB 6 Dirt on back of paper Possible causes l Dirty paper Action Replace the paper with new one Advise the customer on how to store paper Periodical stain pick up roller transfer charging roller lower fixing roller Action Referring to Table 4 2 1 on page 4 11 identify the dirty roller s and clean the dirty areas If the dirt cannot be removed replace the dirty roller s feed guide or fixing entry guide is dirty Action Clean dirty parts II 7 Vertical lines Possible causes 1 Circumferential scars the photosensitive drum Action Replace the cartridge The upper fixing roller is scratched Action Remove the cause of the damage and replace the roller CHAPTER 4 8 Black horizontal lines Possible causes 1 Horizontal scar s on photosensitive drum Action Replace the cartridge 2 The upper fixing roller is dirty deformed or worn Action Replace the upper fixing roller 1 9 Dirt Possible causes 1 The print paper is dirty Action Replace with new paper Advise the customer how to store print paper 2 Periodical stain separation roller transfer charging roller upper fixing roller EP 72 car tridge Action Referring to Table 4 2 1 on p
27. Shaft drive arm Pick up roller shaft Pick up roller shfat fixing arm Cassette pick up solenoid Lift up cam Figure 2 5 8 CHAPTER 2 the shaft drive arm goes down the pick up roller shaft goes down Then the lift up release arm is pushed and the lift up cam is unfixed At the same time the shaft drive arm is fixed to the pick up roller shaft fixing arm and the pick up roller shaft is stopped in the designated position Pick up roller shaft shaft drive arm Pick up roller shaft fixing arm Lift up release arm Lift up arm Lifter gear 6 Lift up cam Print paper Paper lifting plate Figure 2 5 9 The lift up cam starts rotating when unfixed and the lift up arm pushes up the lifter gear by one tooth The paper lifting plate is lifted by repeating this operation Main motor drive SN Lift up arm O Lift up cam Print paper Lifter gear Paper lifting plate Figure 2 5 10 CHAPTER 2 The pick up roller shaft is lifted up when the paper on the paper lifting plate touches the pick up roller Then the fixing arm is released and the lift up release arm lifts up the pick up roller shaft to the waiting position by force of the spring At the same time the lift up cam is fixed by driving the pick up roller shaft fixing arm and the lift up release arm Then the lift up arm is stopped and the lift up operation is completed Lift up operation Cassette pick up roller
28. 1 CHAPTER 4 Notes 1 Before executing a test print make sure to select the same pick up source and deliv ery source that were used when the malfunction occurred according to the informa tion given by the user If the information is not available make test prints with all feasible combination of paper source and delivery source in the printer and find out the factor 2 The image defect occurred at the user side might not re occur on its test print In this case make a print from external device and infer the factor by the output image Then find the factor according to the item image defects CHAPTER 4 B Initial Check Check the following items before making a diagnosis of malfunction If any failure is found the service technician is to clear the problem and to give the instruction to the user 1 Installation environment Make sure that the requirements stated below meet when installing printer a The power supply voltage is from 10 to 6 of the rated voltage b The printer is securely installed on a level surface c The room temperature is kept between 10 and 32 5 and the relative humidity between 2096 and 8096 d Avoid sites generating ammonia gas high temperature or high humidity near water faucet kettle humidifier cold places open flames and dusty areas e Avoid sites exposed to direct sunlight If unavoidable advise the customer to hang curtains A well ventilated place Make sure
29. 32 pages per minute A4 Letter 2 Superior print quality Combination of high resolution printing at 600 DPI and the use of super fine toner offers clear print images 3 Duplex printing With the optional duplexing unit installed the printer can print on both sides of paper 4 Continuous printing With the optional paper deck installed in the printer in addition to the standard equipped multi purpose tray and upper and lower cassettes up to about 3 100 sheets of paper 75g n be loaded enabling continuous printing in large volume 5 6 way paper pick up Optional 2x500 sheet paper deck and envelope feeder in addition to the standard equipped multi purpose tray and upper and lower cassettes offer 6 way paper pick up The printer can change the paper pick up source automatically according to the paper type in addition to the paper size 6 Delivery With the optional staple stacker installed in addition to the standard face down tray up to 2 300 sheets of A4 or Letter size paper 75g n be delivered simple stacking 7 Various delivery methods With the optional sorter attached to the printer paper can be delivered in 4 modes mail box job separator stacker and collator 8 Memory saving technology Memory Reduction Technology accomplishes printing at 600 DPI with standard equipped mem ory 8 MB It also decreases errors such as memory over flow and provides stable printing 9 Energy saving Toner saving
30. DIMM 0 ROM DIMM 1 ROM DIMM 2 27 EEPROM AIR DRAM DRAM 16M 16M lt lt DRAM DRAM 16M 16M Figure 2 6 1 CHAPTER 2 Video contoroller PCB Block Diagram to host computer 36pin MASK ROM 4MB ROM Cont CPU PPC603e 100 33 nRESET nDOE nAOE LVTH245X 4 20 m CPUCLK 33 3MHz AD 31 0 Cont nGCS pe Cont 26 8 LVCR2245 X 2 nA8 LSYNC 23 17 2 nA8 VDO Buffer LVCR2245 X 2 X TAL MA 10 0 nCAS 3 0 nWE RAM DIMM for option 72pin 2slot 66 6666MHz Note 8 Operates at 5V 4 5V signals X TAL 14 37038 for option 72 2slot ROM Cont Cont for hard dsk BE 2 1GB Hard disk gi lt i T i Cont W i X Y a Y for network board 5 PSIO lt J11 gt _ MUS mm Extension dem nVDO pz Engine to DC controller 20pin 48pin Figure 2 6 2 B Control Panel 1 Outline CHAPTER 2 The control panel contains a LCD 20 characters x 2 lines 9 switches and 7 LEDs The control panel is connected to the video controller PCB and has the functions
31. E 85 Transfer bias constant current drive signal Sr 3 DCHGBD Discharge bias drive signal High voltage TRFCLK Transfer bias frequency output signal power n AG DCHGUP Discharge bias switch signal supply PCB E 7 HVTCLK voltage bias frequency output signal B7 B7 DEVACD Developing AC bias drive signal PRIACCLK Primary AC bias frequency output signal s E DEVACCLK Developing AC bias frequency output signal s As PRIACD Primary AC bias drive signal A9 B9 DEVDCD Developing DC bias drive signal PRIDCD Primary DC bias drive signal B10 DENADJ Image density adjustment signal A11 B11 A11 B11 a J12 1 J218 1 MMRDY L when the main motor runs normally 2 MMOTD L to run the main motor 3 4 3 4 Main motor dr i an moor 5 6 5 6 4 Figure 2 2 4 CHAPTER 2 Fixing unit Scanner unit fan Power supply fan Electrical unit fan Fixing unit fan Multi purpose tray fan Registration clutch Paper pick up motor Cassette feed solenoid Feed clutch 88999 SL1 208 7 FAN1S 3 2162 FAN2D 3 28 WT 22101 FANSD FAN3S 3 FAN3S WT 2261 25 22251 FAN4S 3 1 WT 2851 3343 22291 2 9 FAN5S FANSS WT 24VA J17 2 16 1 J209
32. Figure 2 3 2 This circuit switches ON and OFF the laser diode LD with a constant intensity in response to the video signals VDO VDO sent from the video controller PCB The VDO and VDO signals are converted into the low voltage differential signals to suppress radiation noise from the video controller PCB and sent to the DC controller PCB and then sent to the receiver in the laser driver circuit The receiver demodulates the low voltage differential signals and transmits it as a VIDEO OUT signal VDOUT to the logic circuit in the laser driver IC If the VIDEO ENABLE signal LENBL from the microprocessor CPU IC201 is L the laser driver circuit turns the laser diode ON and OFF according to the VDOUT signal The CPU monitors the LASER FAILURE DETECTION signal DRVES sent from the laser dri ver PCB to check whether the laser diode is generating laser normally or not The CPU emits laser forcibly when the BDI signal is not input for 0 7 continuous seconds from the BD PCB while the scanner motor runs at the specified speed and notifies the video controller of the BD failure when the DRVES signal is 3 805V or less and the laser failure when 2 27 CHAPTER 2 it exceeds 3 805V 2 Automatic power control of laser diode The laser driver IC controls the automatic power control APC of the laser diode so that the laser diode emits a beam of constant intensity When the FORCED LASER ON signal LON becomes L or the VIDEO EN
33. J54 Fixing roller surface temperature sensor TH H1 Fixing main heater Thermo switch CHAPTER 2 DC controller PCB L to drive the lifting plate If the plate is up it will drop if down it will rise L to rotate the manual feeding pick up roller L to deliver printed paper face up L to turn OFF the relay and interrupt the power to the fixing heater The main heater is turned ON when the FSRDE signal is output and this signal is L The sub heater is turned ON when the FSRDE signal is output and this signal is L Fixing heater drive enable signal pulse signal L when the current transformer detects the power to the fixing heater Inverter circuit control signal L when the relay is turned ON L when the line voltage is 200V for 200V model only When L the power supply uni outputs 24V to the DC controller TSW 5 TSWOUT TSWIN J56 2 51 2 J50B 5 J222 2 FSRTH The voltage drops as the ew A Figure 2 2 6 fixing roller temperature rises CHAPTER 2 B Fixing Control l Fixing temperature control The upper fixing roller contains two heaters fixing main heater H1 600W and fixing sub heater H2 450W The fixing main heater heats the center of the upper roller and the fixing sub heater mainly heats both ends of the upper roller The figure be
34. LINES 510 128 BIN7 MAILBOXT if installed SORTER BIN UP 7 BIN SORTER MAT PLAIN REFINE ON OFF FNTSRC INTERNAL SOFT TRAY SWITCHEON 7 OFF FORMAT DISK FORMAT DISK MANUAL OFF ON IGNORE DISK FONTNUM Fa MANUAL OFF Dm The following options REALLY FORMAT are available for all items IGNORE DISK PT SIZE 12 00 4 00 to 99 75 MPTSIZE LETTER LEAGAL M 11547 PLAIN LETTERHEAD BOND EXEC COM10 CUSTOM RECYCLED COLOR MONARCH C5 DL B4 BS IS CARDSTOCK LABELS FORMAT FLASH FORMAT FLASH 10 00 0 44 to 99 99 B51SO TRANSPARENCY ROUGH IGNORE FLASH CUSTOM1 CUSTON2 REALLY FORMAT ENVSIZE COM10 C5 DL B5 ISO CUSTOM3 CUSTOM4 IGNORE FLASH SYMSET ROMAN 8 ISO L1 ISO L2 ISO L5 PC 8 PC 8 D N PC 850 MONARCH CUSTOMS CUSTOM6 PC 852 PC 8TK WIN L1 WIN L2 WIN L5 5 DESKTOP PS TEXT VIN INTL VN US MS PUBL DORE SOF B ON MATH 8 PS MATH VN MATH PI FONT LEGAL ISO 4 ISO 6 ISO 11 ISO 15 ISO 17 ISO 21 ISO 60 ISO 69 WIN 3 0 Susie iia SHORT LANGUAGE MENU TEST MENU TOKEN RING MENU ETHERNET MENU PARALLEL MENU LANG ENGLISH DANISH DUTCH FINNISH SHOW PAGE COUNT PERSONALITY AUTO PS PCL PERSONALITY AUTO PS PCL PERSONALITY AUTO PS PCL FRENCH GERMAN CLEANING PAGE ITALIAN NORVEGIAN TIMEOUT 15 5 to 300 TIMEOUT 15 510 300 BIDIRECTION ON OFF TIMEOUT 15 5 to 300 SWEDISH PORTUGUESE TEST PRINT SIME STAPLE TEST PRINT PS FONT
35. Line key while you turn on the print er The printer displays the message COLD RESET followed by WARMING When the printer comes on line the factory default settings are restored CHAPTER 1 This page intentionally left blank CHAPTER 1 AT Press To move M aval MENU Forward enu Eve SHIFT and MENU Back ITEM Forward Item level READY Press ON LINE to take the printer off line SHIFT and ITEM Back PLUS MINUS Forward Press PLUS MINUS to select the item level SHIFT and PLUS MINUS Back Press ENTER to select the value PAUSED Press MENU to display the name of the first menu PCL MENU PS MENU FEEDER MENU PAPER TYPE MENU CONFIG MENU MEMCOMFIG MENU COPIES 1 x 1 to 999 COPIES 1 1 to 999 FEED DECK DECKI DECKA2 f installed UPPER PLAIN JAMRECOVERY OFF ON PCL SAVE OFF LOWER UPPER MPT PAGESIZE LETTER A3 A4 A5 B4 PRINT ERRS OFF ON LOWER PLAIN AUTOCONT ON OFF PS3 SAVE OFF ON ENVELOPE f installed ns 10 DL SORTING MONARCH C5 TO CONFIRM CANCEL DECK PLAIN DENSITY 7 01015 B5 JIS B5 ISO if installed SIDE OUTPUT BIN SORTER BIN UP BIN1 MAILBOX1 BIN2 MAILBOX2 DECK1 PLAIN PWRSAV 30MIN J 1HR 2HR 3HR 4HR LANDSCAPE installed E TEMIN BIN7 MAILBOX7 EN SORTER BIN UP 7 BIN SORTER MODE OFF ON 60
36. Note this switch off the printer for 15 minutes and then switch the printer back error occurs Message Meaning APPENDIX Action CALL FOR SERVICE on 11 1 ERROR SCAN NER CALL FOR SERVICE Scanner motor malfunction start up 11 2 ERROR SCAN NER CALL FOR SERVICE Scanner motor malfunction rotation 11 3 ERROR SCAN NER CALL FOR SERVICE BD Laser malfunction 11 4 ERROR LASER CALL FOR SERVICE BD Laser malfunction 12 1 ERROR MOTOR CALL FOR SERVICE Main motor malfunction start up 12 2 ERROR MOTOR CALL FOR SERVICE Main motor malfunction rotation 13 1 ERROR FANI CALL FOR SERVICE Fan motor 1 failure controller 13 2 ERROR FAN2 CALL FOR SERVICE Fan motor 2 failure power supply 13 3 ERROR FAN 3 CALL FOR SERVICE Fan motor failure 5 1 13 4 ERROR FAN 4 CALL FOR SERVICE Fan motor 4 failure exhaust2 13 5 ERROR FAN 5 CALL FOR SERVICE Fan motor 5 failure multiple 14 1 ERROR AUX TRAY CALL FOR SERVICE Lifting plate failure Perform the troubleshooting pro cedure described in section VI of Chapter 4 15 1 ERROR STACKER CALL FOR SERVICE Malfunction of paper delivery motor 15 2 ERROR STACKER CALL FOR SERVICE Malfunction of stapler shift motor 15 3 ERROR STACKER CALL FOR SERVICE Malfunction of staple motor 15 4 ERROR STACKER CALL FOR SERVICE Malfunction of lign
37. PCB Make sure not to touch especially the electrical elements 1 2 3 4 5 Open the hard disk packaging Remove the pad and then take out the hard disk from its box Remove the plastic bag holding the hard disk If the optional expansion board is installed in the printer remove the board Loosen the 2 screws at the left back of the printer and pull out the PCB CHAPTER 1 6 Remove the 2 screws on the PCB Figure 1 5 2 7 Insert the claw of the hard disk into the hole of the PCB Figure 1 5 3 8 Fix the hard disk with the enclosed 2 screws and then connect the connector NN sii Figure 1 5 4 CHAPTER 1 9 Install the PCB into the printer and fix it with 2 screws 10 Turn ON the printer switch 11 Press the On Line key when the printer becomes READY to take the printer off line 12 Press the Menu key to select CONFIG MENU 13 Press the Item key to select FORMAT DISK 14 Press the Enter key 4 FORMAT DISK IGNORE DISK appears in the display 15 Press the Plus Minus key 4 REALLY FORMAT IGNORE DISK appears in the display 16 Press the Plus Minus key FORMATTING appears in the display Disk LED lights up and formatting starts 17 When the printer completes formatting the hard disk DISK FMT RESTART appears in the display and the printer restarts automatically Power On Press On Line key PAUSED gt CONFIG MENU Press Menu key Press Item
38. Pick up roller 18 Transfer charging roller 19 Upper cassette 20 Lower cassette 21 Lower fixing roller 22 Duplex deflector 23 Face up deflector CHAPTER 1 INSTALLATION A Notes This printer is packaged and shipped from the factory after careful adjustments and rigorous inspections When installing the printer it is important to demonstrate its performance in the same way as when it passes the factory inspection The service engineer must sufficiently understand the performance of the printer install it correctly in a location with an appropriate environment and conduct sufficient checks of the unit B Location Selection Before taking the printer to the customer s premises you should confirm the following condi tions at the installation location 1 Power supply Use the following power supplies e Alternating current 10 6 of the rated voltage Power frequency 50 60Hz 2Hz 2 Operating environment Install in a location that meets the following conditions Level flat surface Temperature humidity within the following ranges Surrounding temperature 10to 32 5 Surrounding humidity 20 to 80 RH relative humidity without condensation Cool well ventilated space Do not install in the following locations Exposed to direct sunlight If you cannot avoid such a location hang heavy curtains etc to shut out the direct sunlight Near magnets and devices that emit a magnetic field Area
39. Sensor 3 30 CHAPTER 4 TROUBLESHOOTING PREFACE 2e 4 1 A Malfunction Diagnosis Flowchart 4 1 B Initial Check 4 4 C Test Print uere 4 5 IMAGE DEFECTS 4 8 PAPER JAMS TROUBLESHOOTING 4 14 PAPER TRANSPORT TROUBLESHOOTING 4 18 MALFUNCTION VI CLUTCHS SOLENOIDS 3 31 A Locations 3 31 B Multi purpose Tray Pick up Clutch 3 32 C Feed Clutch 3 32 D Registration Clutch 3 33 E Lifting Plate Solenoid 3 33 F Cassette Pick up Solenoid 3 34 G Face up Solenoid Unit 3 34 MOTORS FANS 3 35 A Locations 3 35 B Main 3 36 C Pick up Motor 3 36 D Fans 3 37 VIII 8 3 41 A Locations 3 41 B Video Controller PCB Unit 3 42 C DC Controller 3 43 D Pick up 3 44 E Multi purpose Tray PCB 3 44 F Switch Sensor PCB 3 45 G High voltage Power Supply Unit 3 47 H Cassette Paper size Sensing 3 47 I Power Supply 3 48 TROUBLESHOOTING 4
40. The laser driver turns the laser diode ON and OFF according to the video signal VDO VDO and generates the modulated laser beam only when the VIDEO ENABLE signal LENBL from the DC controller is L The modulated laser beam is aligned by a collimator lens and a cylindrical lens into a paral lel beam which strikes the scanning mirror that is rotating at a specified speed The beam reflected from the scanning mirror is brought to a point of focus on the photosen sitive drum with the focusing lens and the mirror located in front of the scanning mirror As the scanning mirror rotates at a specified speed the beam is scanned across the drum at a specified speed The drum also rotates at a specified speed and the laser beam successively scans across its surface Thus the laser beam builds up an image on the drum surface CHAPTER 2 B Laser Control Circuit 1 Outline DC controller PCB Laser driver PCB ie SSG E o o Photo diode gl ai pes diode 201 6 PRNT PRNT 66 14202 4 1001 8 1 202 0 2 1 LENBL 41 1 9 NDO Receiver Logic IC Drive IC circuit 5 8 417 Laser driver IC ____ l 3 BDI 121 Y BD PCB c2 See ee c1 VDO 5 LE o lot
41. The printer cuts off the power to the fixing heater when it remains idle for a specified length of time It can also reduce toner consumption by selecting the economy mode to print light images with less toner 10 Automatic emulation switching The printer supports Hewlett Packard s enhanced PCL6 With the optional PostScript ROM DIMM Canon Translator Module A 72 installed the printer can automatically switch between the standard PCL and Adobe PostScript 37M 11 Automatic interface switching In addition to the standard built in bicentronics parallel port optional interfaces can be installed in the printer The printer can automatically switch between the parallel and expan sion interface according to which interface port the data sent from the host computer enters CHAPTER 1 This page intentionally left blank CHAPTER 1 SPECIFICATIONS A 1 1 2 3 4 5 6 7 8 9 Printer Printer Engine Type Printing method Printing speed Note 1 First print time Note 2 Wait time Note 3 Resolution Horizontal Vertical Image formation system Laser Scanning system Photosensitive drum Charging Exposure Toner Development Toner supply Transfer Separation Cleaning Fixing Paper pick up Print paper Paper sizes Multi purpose tray Upper cassette Lower cassette Multi purpose tray capacity Cassette capacity Cassette types Upper cassette Lower cassette Print delivery 10 P
42. at power up with a disk full installed If AUTOCONT is ON the printer will resume back online after 10 seconds If continue to send files to the disk that larger than the 596 left on the disk the files will be flushed or printed out as text Delete pcl ps fonts macros files or format the disk to clear the message The message doesn t clear with power cycle or COLD RESET This message has lower priority than printer error mes sages such as toner low or memory overflow READY OF Mopier is activated is the total mopier count is the increment count up to Mopier is only available when the hard disk is installed No action required This message is temporarily displayed for the duration of the printer s process ing time PJL RDYMSG DISPLAY will have higher priority than OF message FORMAT FLASH IGNORE FLASH A request has been made to format the flash rom Press to format the flash or press to ignore the flash For new unformatted flash the print er will automatically format the flash without any message display when the printer is booting up REALLY FORMAT IGNORE FLASH The operator is being asked to verify the flash rom formatting is really wanted This is in response to the foregoing message Press to verify that the flash is to be formatted or press to skip for matting the flash FLASH FORMATTING This message is displayed while the flash
43. gauge CK 0057 0 02 mm to 0 3 mm Compression spring scale CK 0058 For checking cassette spring strength 0 600 5 Phillips screwdriver 0101 M5 length 363mm Phillips screwdriver 0104 M3 M4 length 155mm Phillips screwdriver CK 0105 M5 length 191mm Phillips screwdriver 0106 M4 M5 length 85mm Flat blade screwdriver 0111 Precision flat blade screwdriver set 0114 Set of 6 Allen wrench set CK 0151 Set of 5 File fine 0161 Allen hex screwdriver CK 0170 M4 length 107mm Diagonal cutting pliers 0201 Needle nose pliers CK 0202 Pliers CK 0203 Retaining ring pliers CK 0205 For shaft rings Crimper CK 0218 Tweezers CK 0302 Ruler CK 0303 150 mm for measuring Soldering iron CK 0309 100 V 30 W Mallet plastic head 0314 Brush CK 0315 Penlight CK 0327 Plastic bottle 0328 100cc Solder CK 0329 01 5 mm x 1 m Desoldering wick CK 0330 1 5 mm Lint free paper CK 0336 500 SH PKG Soldering iron 0348 240 V W Oiler CK 0349 30cc Plastic jar CK 0351 30cc Digital multimeter FY9 2032 F Special Tools In addition to the standard tools the following special tools are required for servicing the print er Tool name Tool No CHAPTER 4 Table 4 8 3 Application remarks Printer driver tester RY9 0104 Used for checking printer operations Note Ranks A Tools used for part replacement or adjustment o
44. key CONFIG MENU Press Enter key FORMAT DISK FORMAT DISK IGNORE DISK yPress Plus Minus key REALLY FORMAT IGNORE DISK Press Plus Minus key FORMATTING DISK FMT RESTART Figure 1 5 5 CHAPTER 1 1 2 3 1 2 Operation confirmation Load paper in the lower cassette Insert the power plug into the outlet and the printer then turn the power switch ON After the printer enters STANDBY mode press the test print switch to make a test print Check that the density of the output image is correct Clean around the printer and ensure that it is ready for use at anytime Operation precautions Turn ON the power of external equipment then the printer Turn the power OFF in the reverse sequence If the power of external equipment is turned ON OFF while the printer is ON noise may be transmitted through the connection cable between the external equipment and the printer and error may occur on the printer Turn off the power of both the printer and the external equipment before plugging unplug ging the connector between the two Doing so while the power is ON could cause malfunc tions CHAPTER 1 D Storing Handling the EP 72 Cartridge Whether the cartridge is still sealed in its box or installed in the printer the effect of the natur al environment will change it over time regardless of the number of prints As the progression of this natural change depends on the storage
45. listed below Displays status and error messages in the LCD Displays operation condition with the LED Changes Menus and values with the switches a b p 2 Operation The LCD and LEDs on the control panel are controlled by the signals output from the video con troller The signals generated by the switches on the panel are input to the video controller Video controller PCB DC controller PCB Control panel IC10 6 13 J3 3 JeA14 npes J89 4 AS 06 14 13 5 46 814 nFPOD 1 1 43 6 1 i 1 1 i 1 _ _ 0 0 a Figure 2 6 3 CHAPTER 2 C Self Test printer executes the self diagnostic program of the video controller to check the condition of the video controller at the power ON This function is called self test There are two types of self tests power ON self test and power ON key sequence 1 Power ON self test Every time the printer is turned ON the power ON self test is conducted following the procedure stated below 1 Tests all the DRAMs on the video controller Error found here will be displayed in the LCD as a service call 2 Tests the program ROM font ROM and optional ROM Error found here will be displayed in the LCD as a service call 3 Checks inside of the CPU Error found here will be displayed in the LCD as a service call
46. or installation environment take sufficient care in storing and handling the cartridges 1 Before unsealing the box When the cartridge is stored in a warehouse workshop etc be sure to keep it within the ranges shown in Table 1 5 1 Note the following points 1 Avoid locations in direct sunlight 2 Do not leave in areas exposed to strong vibration 3 Do not bump or drop Table 1 5 1 Storage temperature and humidity conditions Normal total storage time x s 9 10 0 35 Severe total storage High 35 to 40 time x 1 10 Temperature Low 20 to 0 Temperature change within 40 C15 C 3 minutes or so 20 525 Normal total storage time x 9 10 35 to 8596 RH Severe total storage High 85 to 95 RH time 1 10 Low 10 to 35 RH Relative humidity 345 to 1013 hPa Air pressure 460 to 760 mmHg Note Total storage time is the valid time span following the manufacture date displayed on the cartridge box 2 After unsealing the box As an organic photoconductor OPC is used in the photosensitive drum it will deteriorate if exposed to strong light As there is toner in the cartridge be sure to explain to the customer the need to be careful in handling and storing unsealed cartridges a Storage environment 1 Be sure to store in the aluminum bag 2 Avoid locations exposed to direct sunlight near windows etc Do not leave them in car
47. output replace the power supply Wiring DC load DC controller PCB Action Turn the power switch OFF Check the wiring from the DC controller PCB and the DC load If they are normal replace the DC controller PCB CHAPTER 4 VI MALFUNCTION STATUS TROUBLESHOOTING If the factor of the malfunction is identified as malfunction status troubleshooting by the mal function diagnosis flowchart Figure 4 1 1 execute the followings and mend the malfunction VI 1 10 1 ERROR FUSER CALL FOR SERVICE Fixing unit failure abnormal low temperature 10 2 ERROR FUSER CALL FOR SERVICE Fixing unit failure abnormal Warm up lt Possible causes gt 1 The rated voltage of the fixing unit installed in the printer differs from the line voltage Action Replace the fixing unit 2 The thermistor is dirty Action If the thermistor contact area of the upper fixing roller is dirty clean it 3 The thermistor is not installed correctly Action If the thermistor is not evenly contacting the upper fixing roller re install the ther mistor correctly 4 The thermistor wire is broken Action Turn the power OFF and remove the fixing unit Measure the resistance between the fixing unit connector J50B 5 FSRTH and J50B 4 GNDTH If the resistance is not between about 190 290kQ room temperature of 25 C check the wiring from connector J222 on the DC controller PCB to the thermistor If it is nor mal replace the thermistor 5 T
48. printer driver tester If it is defective replace the multi purpose tray PCB 3 The lifting plate solenoid is defective Action Disconnect lifting plate solenoid connector J1302 Measure the resistance between connector J1302 1 and J1302 2 on the cable side If it is not about 1600 replace the lifting plate solenoid 4 The DC controller PCB is defective Action Replace the DC controller PCB VI 13 TONER CARTRIDGE MISSING message appears when it is installed Possible causes 1 The developing bias contact of the high voltage power supply is not making good connec tion with the cartridge contact Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them 2 Defective cartridge Action Replace the cartridge 3 The high voltage power supply PCB is defective Action Replace the high voltage power supply PCB 4 The DC controller PCB is defective Action Replace the DC controller PCB VI 14 LOAD MEDIA SIZE MPT message appears when the specified sized paper is in the multi purpose tray Possible causes 1 Damaged paper detection lever Action Replace the defective lever 2 Defective multi purpose tray paper sensor Action Replace the multi purpose tray PCB 3 The DC controller PCB is defective Action Replace the DC controller PCB CHAPTER 4 VI 15 Displays LOAD lt MEDIA gt lt SIZE gt IN UPPER or LOAD lt M
49. registration roller if it is dirty Replace if worn or deformed Transfer charging roller does not rotate smoothly Action Replace the transfer sub roller Replace any worn gear s Registration paper sensor lever does not move smoothly or is damaged Action Adjust the lever so that it moves smoothly Replace it if damaged Registration roller drive gears are damaged Action Replace any damaged gears The registration clutch is defective Action Disconnect registration clutch connector J17 Measure the resistance between con nector J17 1 and J17 2 on the cable side If it is not about 2109 replace the reg istration clutch DC controller is defective Action Replace the DC controller PCB III 4 Fixing and delivery block Possible causes 1 Paper longer than the paper length set by the user was loaded during manual feeding Action Advise the user to replace it with the set paper size The fixing roller does not rotate smoothly Action Check whether any gears are worn or fractured The fixing entry guide is dirty damaged or clogged with toner Action Clean the guide The fixing separation guide is dirty damaged or clogged with toner Action Clean the guide The fixing separation claw is worn or damaged Action Replace the claw upper or lower fixing roller is deformed or damaged Action Replace deformed or damaged rollers The nip width of the lower fixing roller is not correc
50. signal HVTCLK power Developing AC bias drive signal DEVACD supply Primary AC bias frequency output signal PR1ACCLK Developing AC bias frequency output signal DEVACCLK Primary AC bias drive signal PR1ACD Developing DC bias drive signal DEVDCD Primary DC bias drive signal PR1DCD Image density adjustment signal DENADJ VDO 1 1 1 1 1 1 1 1 1 1 1 1 Video DC Discharge bias switch signal DCHGUP voltage 1 1 1 1 1 1 1 1 1 1 1 1 1 Figure 2 4 1 CHAPTER 2 B Printing Process A major portion of the image formation system is contained with a cartridge as shown in Figure 2 4 2 N Laser beam 2 Cartridge Primary charging roller E Blade i T d Cleaning blade Photosensitive drum mu UM Developing cylinder Transfer charging roller Static charge eliminator Figure 2 4 2 This printers cartridge has a seamless photosensitive drum with a two layer surface shown in Figure 2 4 3 The outer layer of the drum consists of an organic photoconductor OPC and the base is alu minum Photoconductive layer Base Figure 2 4 3 The printing process can be divided into five major stages 1 Electrostatic latent image formation stage Step 1 Primary charge Step 2 Scanning exposure 2 Developing stage Step 3 Development 3 Transfer stage Step 4 Transfer 4 Step 5 Separation 4 Fixing sta
51. the printer When transporting the printer remove the cartridges Either insert the cartridge in the aluminum bag or wrap it in a thick cloth to ensure light does not penetrate it Do not leave the cartridge near CRT displays disk drives or floppy disks magnetism generated by the cartridge may destroy their data As the photosensitive drum is sensitive to strong light do not expose the cartridge to direct sunlight or strong light 1500 lux or more If it is exposed to strong light blank spots or black lines may appear on images Should this happen temporarily turn OFF the printer The distorted images such as blank spots or black lines are likely to disappear However if the drum was exposed to strong light for a long period of time it is possible the black lines etc will remain Do not open the photosensitive drum protective shield by hand nor touch the drum surface Do not clean the drum Do not place the cartridge on its end or upside down Always place it with the label side fac ing upward Do not disassemble the cartridge CHAPTER 1 Figure 1 5 7 1 17 CHAPTER 1 VI MAINTENANCE AND SERVICING BY THE CUSTOMER To maintain the optimum performance of the printer the following maintenance should be per formed by the customer 1 Cartridge Shake or replace the cartridge as the occasion demands 2 Transfer guide registration guide When replacing the cartridge clean the transfer guide a
52. until an A4 or A3 sized print is delivered onto the face down tray 3 At a room temperature of 20 with rated voltage input the time from turning ON the printer until the end of the WAIT period 4 When manual duplexing correct the curl of the print delivered in the face down tray before setting it in the multi purpose tray 2 Video Controller 1 CPU 2 RAM 3 ROM 4 ROM DIMM socket 5 RAM DIMM socket 6 Host interface 7 Language 8 Resident fonts 9 Optional fonts 10 Scaler RISC processor Motorola PowerPC 603e Standard 8MB Maximum 40MB 4MB 2 3 Standard IEEE 1284 compliant parallel Option expansion interface Ethernet Token Ring Standard PCL 5e PCL 6 Option Adobe PostScript 3 45 Scalable fonts MicroType font 8 Bitmap font 136 fonts UFST 1 2 3 4 5 Specifications are subject to change with product modification CHAPTER 1 Option Hard disk Memory 2 16GB Interface ATA 3 IDE Dimensions 70 w x 12 7 D x 100 mm excluding mounting materials and connector Weight About 0 15 5 Power supply DC5V supplied from the printer CHAPTER 1 SAFETY INFORMATION Laser Safety An invisible laser beam is irradiated within the laser scanner unit Since the laser beam can injure the eye if it strikes it be sure not to disassemble the laser scanner unit It cannot be adjusted in the field anyway The label shown below is attached to th
53. used to view and change settings On Line indicator 17 On The printer is on line power on warmed up and ready to receive data from the host computer for printing Before you begin a print job always check this indicator is on Flashing The printer is processig a print job Do not turn the power off otherwize you may lose print data Off The printer is off line You can now use the printer control panel keys to view and change set tings When off line the printer cannot accept data for printing CHAPTER 1 B Operation Panel Menus You can access the following menus though the operation panel PCL MENU PS MENU Note 1 FEEDER MENU CONFIG MENU MEMCONFIG MENU PARALLEL MENU LOCALTALK MENU Note 2 ETHERNET MENU Note 2 TOKEN RING MENU Note 2 TEST MENU LANGUAGE MENU Notes 1 Menus that appear after the PostScript option has been installed 2 Menus that appear after an option has been installed such as Network modules 1 Accessing and selecting menu items Follow these steps to access the menus and make selections 1 2 3 4 5 6 7 Check the operation panel and be sure the JOB indicator is off Press the On Line key to set the printer off line The On Line indicator goes off Press the Menu key to display the name of the first menu Press the Menu key until you see the Menu Press the Item key to display the name of the first item on the menu Press the Menu key until you see th
54. voltage power supply is not making a good connec tion with the cartridge contact Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them The high voltage power supply PCB is defective Action Replace the high voltage power supply PCB The DC controller PCB is defective Action Replace the DC controller PCB 4 black Possible causes 2 The primary bias contact of the high voltage power supply is not making a good connection with the cartridge contact Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them Defective primary charging roller CHAPTER 4 Action Replace the cartridge The high voltage power supply PCB is defective Action Replace the high voltage power supply PCB DC controller is defective Action Replace the DC controller PCB 1 5 Dots in vertical line Possible causes 1 Static charge eliminator is dirty Action Clean the eliminator with brush static charge eliminator contact of the high voltage power supply is not making a good connection with the static charge eliminator contact Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them The transfer charging roller is deformed or has deteriorated Action
55. 0 RF9 1394 000 Feed roller and separation RF5 1834 000 Separation pad 200 000 prints 350 000 pages ote 2 220 240V 350 000 pages Note 2 350 000 prints separation pad together Fixing unit Transfer charging roller For both upper and lower rollers roller Replace the feed rollers and separation rollers together Power supply fan RH7 1266 000 25 000 hours Electrical unit fan RH7 1271 000 25 000 hours Fixing unit fan RH7 1289 000 25 000 hours Fixing unit scanner fan RH7 1396 000 25 000 hours Multi purpose tray fan RH7 1397 000 25 000 hours Notes 1 The values above are only estimates based on part data and are subject to change 2 2 pages are counted as 1 print in case of duplexing Expected life of the fixing unit is 350 000 pages when it is used only in the normal mode C Periodic Service The printer has no parts that require periodic servicing CHAPTER 4 D Cleaning during a Service Visit Following the procedures below clean the printer during service visit 1 Transfer charging roller As a general rule the transfer charging roller is not to be touched or cleaned If it is unavoid able clean the roller with dry lint free paper which produces little paper dust Do not use water or solvent Make sure not to contaminate the roller with solvent or oil 2 Multi purpose tray pick up roller cassette pick up roller sepa
56. 1 i 5 5 i CCRT 1 1 1 PCLK PDLV PFED SPCHG CBSY PRNT i NSYNC PRFD i CPRDY VDO NDO i CMD CCLK CPSEL FPCS FPO Figure 2 2 12 CHAPTER 2 2 Operation When the power is switched ON the printer enters WAIT mode At the end of the WAIT mode the DC controller sends the READY signal RDY to the video controller to inform it that printer is ready to print When the RDY signal is L and data for a page is prepared the video controller sends the PRINT signal PRNT to the DC controller When the DC controller receives the PRNT signal it starts the operation of the INITIAL ROTATIONS INTR period At the end of the INTR period the DC controller sends the VERTICAL SYNC REQUEST sig nal VSREQ to the video controller The video controller receives the VSREQ signal and sends the VERTICAL SYNC signal VSYNC to the DC controller When the VSYNC signal is received the print sequence is start ed The video controller sends the VIDEO signals VDO VDO synchronized with the HORI ZONTAL SYNC signal BD and VERTICAL SYNC signal VSYNC from the DC controller to the laser driver through the DC controller The VIDEO signals VDO VDO are sent to the laser dri ver as two low voltage differential
57. 1 200 SERVICE MANUAL REVISION 0 Canon JAN 1999 RY8 1390 000 COPYRIGHT 1999 CANON INC CANON LBP 3260 REV 0 JAN 1999 PRINTED IN JAPAN IMPRIME AU JAPON COPYRIGHT 1999 CANON INC Printed in Japan Imprim au Japon Use of this manual should be strictly supervised to avoid disclosure of confidential information Prepared by PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT CANON INC 5 1 Hakusan 7 chome Toride City Ibaraki Pref 302 8501 Japan PREFACE This Service Manual contains basic information required for after sales service of the laser beam printer LBP 3260 hereinafter referred to as the printer This information is vital to the ser vice technician in maintaining the high print quality and performance of the printer This manual consists of the following chapters Chapter 1 Chapter 2 Chapter 3 Chapter 4 Appendix Product information Features specifications operation and installation Operation and Timing A description of the operating principles and timing sequences of the electrical and mechanical systems The Mechanical System Explanation of mechanical operation disassembly reassembly and adjustment pro cedures Troubleshooting Troubleshooting procedures reference values and adjustments maintenance and servicing etc General timing chart general circuit diagram etc Information in th
58. 2 4 L 1 iREGCLD Pick up PCB poo 1202 11 112040 22192 3 FEDAND a 1 17 g FEDBD 4 FEDBND 1 i 24VA 1 J1203 2 A 20 1 i J1204 2 da 1 13 7 Figure 2 2 5 DC controller PCB H to rotate at high speed L t rotate at low speed L when the exhaust fan runs normally H to rotate at high speed L to rotate at low speed L when the exhaust fan runs normally H to rotate at high speed L to rotate at low speed L when the exhaust fan runs normally H to rotate at high speed L to rotate at low speed L when the suction fan runs normally H to rotate at high speed L to rotate at low speed L when the exhaust fan runs normally L to run the registration roller Pick up motor rotation control signal L to lower the arm L to turn the feed roller Lifting plate solenoid Manual feed clutch Face up solenoid AC power Fixing unit SL2 SL3 24 J1302 2 11301 2 4214 2 5 9 MPTSLD J1303 2 4 4 MTPCLD Switch sensor PCB 24 J1402 2 4 1 J1401 13 120519 Power 2102 2 J2172 supply FSRD1 Power switch FSRD2 FSRDE FSRN1 FSRCT FSRL1 FSRL2 SUPSLT FSRN2 RLDSNS PSTYP J55 REMT24 J52 H2 Fixing sub heater
59. 2 SW1601 Figure 4 7 5 Table 4 7 3 Function Cassette paper size sensing switch See page 2 47 CHAPTER 4 4 High voltage power supply PCB A12 J701 Figure 4 7 6 Table 4 7 4 Function For factory use CHAPTER 4 This page intentionally left blank 4 34 CHAPTER 4 MAINTENANCE AND SERVICING A Periodic Replacement Parts No parts require periodic replacement in this printer Note Periodic replacement parts are the parts that must be replaced at regular intervals even if they are functioning properly and show no signs of wear Failure of these parts can seriously affect the performance These parts should be replaced during a regular service visit closest to the end of the parts expected life B Expected Service Life of Consumable Parts Shown below are the average life expectancies number of prints of parts that may need to be replace due to deterioration or damage at least once prior to the elapse of the warranty period of the printer These parts should be replace when faulty Table 4 8 1 As of December 1998 Part name Part No Expected life Remarks Multi purpose tray pick RB1 9526 000 200 000 prints Replace the multi purpose up roller tray pick up roller and RF5 2703 000 RG5 4319 00
60. 20 VI MALFUNCTION STATUS TROUBLESHOOTING 4 21 VII MEASUREMENT AND ADJUSTMENT 4 28 A Mechanical Adjustment 4 28 B Electrical Adjustment 4 29 VIII C Variable Resistors LEDs Test Pins Jumpers and Switches on PCBs 4 30 MAINTENANCE AND II 4 35 A Periodic Replacement engrais 4 35 Expected Service Life of Consumable Parts 4 35 C Periodic Service 4 35 D Cleaning during a Service iie 4 36 E Standard Tools 4 38 Special Tools 4 39 G Special Tools printer driver tester Explanation 4 40 H Solvents and Oil List 4 47 IX LOCATION OF CONNECTORS 4 48 APPENDIX GENERAL TIMING CHART A 1 GENERAL CIRCUIT DIAGRAM LIST OF SIGNALS A 5 IV MESSAGES TABLE A 11 CHAPTER 1 PRODUCT INFORMATION FEATURES 1 1 VI MAINTENANCE AND SPECIFICATIONS 1 3 SERVICING BY THE SAFETY INFORMATION 1 6 CUSTOMER PARTS OF THE PRINTER 1 7 VII OPERATION INSTALLATION 1 9 CHAPTER 1 FEATURES 1 High speed printing Equipped with Motorola s PowerPC 603e the printer is capable of printing about
61. 207 or PS1208 If the cassette pick up motor SMT1 in the paper pick up unit rotates for cassette feeding pick up roller feed roller 1 and separation roller turn to feed a sheet of paper into the printer If the manual feed clutch CL3 in the manual feed pick up unit engages for manual feeding the manual feeding pick up roller turns and feeds a sheet of paper from the multi purpose tray into the printer The paper is controlled by the registration roller so that the leading edge of the toner image on the photosensitive drum matches the leading edge of the paper The paper is fed transferred then separated from the drum fed to the fixing unit and delivered onto the face up or face down tray There are four photointerrupters PS1 PS2 51402 and PS1403 on the paper path for sens ing paper reaching or passing through each area If the paper does not reach or clear each sensor within the pre set time the microprocessor on the DC controller assumes a paper jam has occurred and notifies the video controller 9 9 Switch sensor PCB PS1401 DC controller PCB Multi purpose tray PCB CHAPTER 2 51403 SW1603 SW1601 1 SW1602 SW1604 SW1601 SW1602 PS120 Gua PS1202 PS1205 PS1206 N
62. 24VA 1 2 2 51 H Pick up unit os 2S 4 FSRTH feed 1 3 paper sensor g x 5 GND Upper cassette 1 3 i 6 SVIN 4216 _ Power supply fan Option 5 7SVOUT GND3 3 option sensor 2 Fixing unit 8 24VA jFAN2S2 2 FAN2 41911213 4 5 6 7 8 PS1207 J228 FAN2D 1 2 b J1206 Ji 3 1 1 REGCLD RDOORS 3 1 2 24VGND 425 J26 Lower cassette GND 2 22 b Pick up unit J225 Fixing unit fan paper out 1 13 5 door sensor rz 3 1 sensor FANAD 1 3 1 unit o 452 2 22421 PS1208 24VGND 3 1 3 option Ex Lf 58 GND4 10 Ferrite core Upper cassette Noa paper out sensor E GENERAL CIRCUIT DIAGRAM 2 2 g jue es wo N I D8 D6 04 02 00 200 2 2 GND AA26 AA24 AA22 AA20 AA18 AA16 AA14 AA12 AA10 lt nRCSOD nRCS2 nWRO nWR1 VCC Firmware ROM DIMM GN GND MD31 gt MD30 MD29 gt MD28 MD27 gt MD26 MD25
63. 3 3V 3 3V 5V 5V GND VSYNC REQUEST signal VERTICAL SYNC signal STATUS signal COMMAND signal COMTROLLER POWER SELCT signal SPEED CHANGE signal OPERATION PANEL SERIAL OUTPUT signal Reserved RDY CPRDY SBSY CBSY PRFD PFED 3 3V 3 3V 5V 5V GND READY signal CONTROLLER POWER READY signal STATUS BUSY signal COMMAND BUSY signal PRE FEED signal PAPER FEED signal VIDEO signal VIDEO signal OPERATION PANEL SERIAL INPUT signal OPERATION PANEL SERIAL CLOCK signal PRINTER POWER READY signal PRINT signal PRINTER CLOCK signal CONTROLLER CLOCK signal CONDITION CHANGE REPORT PAPER DELIVERY signal eo APPENDIX Connector Abbreviation Signal name J201 ol 5V 5V GND BD BEAM DETECTION signal GND DRVES GNP 5V GND N C VDO GND VDO LON LENBL LASER MALFUNCTION DETECTION signal VIDEO signal VIDEO signal LASER ON signal VIDEO ERABLE signal _ FPI FPCS FPCK 5V 5V GND OPERATION PANEL SERIAL OUTPUT signal OPERATION PANEL SERIAL INPUT signal OPERATION PANEL CONTROLLER CHIP SELECT signal OPERATION PANEL SERIAL CLOCK signal 5V 5V GND 24VGND 24VGND GND GND 24VA 24VA 24VA UDOORS FDFULS FPOUTS FDOUTS FUSLD
64. 4 About 75 Separation roller 24 About 75 Photosensitive drum 30 About 94 Developing cylinder 20 About 52 Primary charging roller 14 About 44 CHAPTER 4 III PAPER JAMS TROUBLESHOOTING Paper passes through 4 major sections of the printer Figure 4 3 1 III 1 Multi purpose tray pick up block III 2 Cassette pick up block 3 Transfer and feed block III 4 Fixing and delivery block If the factor of the malfunction is identified as paper jams by the malfunction diagnosis flow chart Figure 4 1 1 check the block in which the paper jam occurred and find out the defec tive part CHAPTER 4 1 Multi purpose tray pick up block Possible causes 1 Curled paper Action Straighten the paper and then instruct the user The multi purpose tray pick up roller is worn deformed or dirty Action Clean the tray pick up roller if it is dirty Replace if worn or deformed Spring of the sensor is out of place or defective Action Set the spring in the right position Replace it if defective Gears are damaged Action Remove the multi purpose tray pick up unit and check the gears Replace any damaged gears The multi purpose tray pick up clutch is defective Action Remove the multi purpose tray pick up unit and disconnect multi purpose tray pick up clutch connector J1303 from the multi purpos
65. 7 seconds after the pick up unit paper sensor PS2 detects the leading edge of the paper The CPU also assesses a pick up delay jam 2 if the registration paper sensor 51 cannot detect the leading edge of the paper within about 9 5 seconds after start of pick up operation from the multi purpose tray or envelope feeder 3 Fixing unit delivery delay jam The CPU assesses a fixing unit delivery delay jam if the leading edge of the paper does not reach the fixing unit deliver sensor PS1403 within about 2 2 seconds after receiving the VERTICAL SYNC signal VSYNC 4 Fixing unit delivery stationary jam The CPU assesses a fixing unit delivery stationary jam if the trailing edge of the paper does not pass through the fixing unit delivery sensor PS1403 within the specified period of time T1 after receiving the VERTICAL SYNC signal VSYNC Ledger about 5 3 seconds Legal about 4 7 seconds Letter about 3 8 seconds A3 about 5 2 seconds B4 about 4 8 seconds A4 about 3 7 seconds 5 Face down delivery delay jam The CPU assesses a face down delivery delay jam if the leading edge of the paper does not reach the face down tray delivery sensor PS1402 within about 3 9 seconds after receiving the VER TICAL SYNC signal VSYNC 6 Face down delivery stationary jam The CPU assesses a face down delivery stationary jam if the trailing edge of the paper does not pass through the face down tray delivery sensor PS1402 within the specified perio
66. 9 Remove the screw and diode holder 10 Remove the screw and the right fixing cover Screw Diode holder Screw Right fixing rcover Figure 3 4 16 11 Remove the 2 screws M3 stepped screw and then the left fixing cover 12 Remove the 4 gears UA Screws Left fixing cover Stepped screw Figure 3 4 17 CHAPTER 3 13 Remove the screw and the ther 15 Remove the grounding ring moswitch stay Grounding ring Screw Thermoswitch stay Figure 3 4 20 Figure 3 4 18 16 Remove the C ring and the gear 14 Remove the screw undo the 2 claws and take off the fixing roller cover C ring Gear Screw Figure 3 4 21 2 Claw G Fixing roller cover Figure 3 4 19 CHAPTER 3 17 Removing the insulating bushing Insulating bushing Figure 3 4 22 18 Remove the C ring O ring and insulat ing bushing 19 Remove the bearing and the fixing upper roller C ring 2 O ring Insulating bushing Bearing Fixing upper roller Figure 3 4 23 I Fixing Lower Roller 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Remove the fixing upper roller following steps 2 19 from Page 3 19 3 Remove the fixing lower roller Fixing lower roller Figure 3 4 24 CHAPTER 3 J Cleaning Roller 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Remove the fixing lower roller following steps 2 3 o
67. ABLE signal ENBL and VDOUT signal become L the laser diode emits light according to the standard voltage of the laser driver PCB The photo diode in the laser diode detects the beam intensity and feeds back the corresponding current value to the control amplification circuit It is then compared with the current value set in the power adjustment circuit and the intensity of the current to the laser diode is controlled The printer uses the APC method that conducts the beam intensity detection and control for each dot while the laser driver is emitting laser While in the conventional method the beam intensity was measured by emitting laser for a certain period of time between pages or during unblinking this method controls the laser output detecting the intensity of the laser which is actually forming an image Therefore the APC of this printer has higher reliability of control over the conventional APC 3 Horizontal synchronization control The CPU generates an UNBLANKING signal inside the IC201 based on the BD input signal BDI sent from the BD PCB of the laser scanner unit IC201 sets the FORCED LASER ON signal LON to L during unblanking period The laser driver turns the laser diode ON when the LON signal is L The laser beam turned ON by the LON signal is reflected at the small fixed BD mirror locat ed in the light path where the laser beam scanning starts and is input to the BD PCB in the laser scanner unit Th
68. C bias CHAPTER 2 Step 2 Scanning exposure Laser beam Unexposed area Exposed area Figure 2 4 7 When the laser beam scans the drum surface it causes the charge to be neutralized in the areas struck by the laser beam These areas on the drum surface form the electrostatic latent image 2 Development stage Particles of toner are placed onto the electrostatic latent image on the surface of the drum to cre ate a visible image This printer uses the toner projection development method with a single component toner Step 3 Development Developing cylinder Magnet DC bias Figure 2 4 8 Note Charges on the exposed area of the photosensitive drum are shown as positive in this figure In actuality they are negative but they are more positive than those on the devel oping cylinder CHAPTER 2 As shown in Figure 2 4 8 the developing unit consists of a developing cylinder and a rubber blade The developing cylinder rotates around a fixed internal magnet The single component toner consists of magnetite and a resin binder and is held to the cylin der by magnetic attraction The toner is an insulator and acquires a negative charge from fric tion of the rotating cylinder The areas on the drum that were exposed to the laser beam have a higher potential are less negative than the negatively charged toner particles on the developing cylinder When these areas approach the cylinder the po
69. DoOnzaozozuz 22092 as9zg8 2 292 a 2000776 2285826 4556 66064 GOS 0 ORuUOZ 5206 229 E x 59 627 nas gt o 9 8 0o09 Qin s DC controller PCB 808 29485 88055929095 lt 6 5 5 2 8 zg a9zz 2 gt gt gt gQERNurEH cB 0 2 9866 OSaPFAroy 8 uuuugoulUuszaod amp a amp amp a amp paozz 38586222512 2522 23505522 Sess Bou Tobe Sass sj55f 000 5525 BOs Os GG EES AGS FN o KEJA q S9R225206 224199 1234567 8 91011 1213141516 17 18 1920 2 32 A1B1A2B2A3B3A4B4A5B5 N 1234 4m 123456789 5123456 A N1234 12345678 91011121314 S gt 75 gt gt 2 J221 24VB 1 1 J1401 SWi401 O 24 2 z 7 yc 1213456789 2 3 4 5 6 7 8 91011 1213141511617 181920 c 112134 S EE ATBIADBXASESAABAASBS 24vB 3 2 FGND 1 2 3 4 5 6 7 8 91011121314 D J205 3 3 Ferrite 201981716151413121110 9 8 7 6 5 4 3 2 1 C E E 2 5 251402 281403 n 45 5 500 ou amp 812345678910 424VA 3 3 6 5 2 1 2 3 4 5 6 7 8 9 B A Menus SW101 514 24VA 4 5 8 7 Face down Face down Fixing unit ao 5 A 9 8 tray paper tull tray delivery delivery 20191817 16 15 14131211109 87 65432 1 PeeR FDFULS 7 7 10 30 sensor sensor Sid E 123456789 pratt 2 2 56 PS1201 Power sw
70. ECT bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 5 6 7 1 1 1 1 1 1 1 1 ON DISPLAY 4 8 0 6 0 9 0 2 10 0 0 0 0 0 0 0 0 SET UP 1 11 CANON INC RY9 0104 MADE IN JAPAN Figure 4 8 3 DATA LED Monitors the status of the various loads and sensors sent from the printer with the 16 LEDs 24VA LED Lights up when 24VA is being supplied to the tester TEST PRINT switch When set to ON test patterns set by the DATA SET switches are printed MODE SELECT switch To select the various modes See table 4 8 4 DISPLAY SET UP switch Switches between DISPLAY and SET UP DISPLAY Mode to display the status of the various sensors and loads sent from the printer with the DATA LED SET UP Mode to set data with the DATA SET switches DATA SET switch Sets the various data sent to the printer See in table 4 8 4 ENTER switch Inputs data set by the DATA SET switches CHAPTER 4 Table 4 8 4 yes DISPLAY displays the status of the sensors SET UP sets up various data sent to the and loads sent from the printer printer Operator call service call 2 Service call misprint details warning fan density select malfunction details 2 72X 3 Pick up unit configuration select pick up Ready inhibit forced laser emission WX unit pick up unit paper out sleep setting 4 Sensor status WX Sensor status 1 72X 5 Select paper size select print dens
71. EDIA gt lt SIZE gt IN LOWER when the specified cassette is loaded with paper Possible causes 1 Pull out the upper and lower cassettes and install the specified cassette in the printer If the lifter does not lift perform step 5 and subsequent steps 2 Damaged paper detection lever Action Replace the defective lever 3 Defective upper cassette paper out sensor lower cassette paper out sensor Action Replace the pick up PCB 4 The DC controller PCB is defective Action Replace the DC controller PCB 5 Pick up drive unit is damaged Action Remove the pick up unit and replace any damaged parts 6 The cassette pick up solenoid is defective Action Remove the pick up unit and disconnect cassette pick up solenoid connector J1203 from the pick up PCB Measure the resistance between connectors J1203 1 and J1203 2 on the cable side If it is not about 1600 replace the cassette pick up solenoid 7 The pick up PCB is defective Action Replace the pick up PCB 8 The DC controller is defective Action Replace the DC controller PCB VI 16 PAPER JAM message appears when the paper jam has not occurred and the printer cannot be in READY mode Possible causes l Registration paper sensor lever does not move smoothly or is damaged Action Adjust the lever so that it moves smoothly Replace it if damaged 2 Pick up unit sensor lever does not move smoothly or is damaged Action Adjust the lever so that
72. FF the laser diode Figure 2 6 1 shows the location of the ICs on this PCB and Figure 2 6 2 shows the block dia gram 2 Functions by block a CPU IC15 The CPU is Motorola made 32 bit RISC microprocessor PPC603e and its operation frequency is 100MHz The CPU controls the operation of the video controller PCB according to the control program stored in the ROM b ASIC IC21 The ASIC is a graphic co processor and has the following functions 1 DRAM control 2 ROM control 3 Video interface control 4 IEEE 1284 parallel port interface control 5 I O bus interface support c AIR IC2 The smoothing control circuit and SRAM are built in the AIR Its main functions are as follows 1 Image smoothing control 2 EEPROM control 3 Control panel interface control d DRAM 8 MB DRAM is installed on the video controller PCB 72 pin DIMM of 4 MB 8 MB or 16 MB can be installed in the 2 slots on the PCB e ROM DIMM 4 MB ROM is installed on the video controller PCB In addition a ROM is installed on the firmware ROM DIMM The ROM DIMM is installed in the connector J4 on the video controller PCB The user can install 4 MB or 8 MB ROM DIMM in the left connector J2 and the middle con nector J3 The right connector J4 is exclusively for the firmware ROM DIMM f EEPROM IC11 The EEPROM has a memory capacity of 4 KB and is used to store the factory default values and values modified by the control panel CHAPTER 2 ROM
73. GUP turns the low output bias changes to L and the circuit applies a high voltage output bias The high voltage output bias is applied only at the trailing edge of a single side print and during the second side of a duplex print e Toner sensing cartridge sensing The EP 72 cartridge has a toner sensor The DC controller detects the toner level and whether a cartridge is installed when the devel oping AC bias is applied to the developing cylinder by the DEVELOPING AC BIAS DRIVE signal by checking the TONER LEVEL signal TONSNS voltage D Power Supply 1 Outline Power supply CHAPTER 2 DC controller Filter circuit Transfo r 24vA Solenoids Clutches 5V control photocoupler Abnormal voltage latch photocoupler detection circuit Main motor _ Switch 1 A E 3 3V 4 Video 1 45V controller PCB 4 i 1 Current x E 1 1 transfor Triac HEY ef Laser driver mer Power S161 Inverter control 2212 circuit Phototriac 5V coupler sage Current i cm Phototriac use m ototriac coupler Rectificat 5V coupe circuit 84 sensors i Rectificat ion circui
74. INTER COPIES 1 PCL SAVE OFF RESET PRINTER PAGESIZE A4 RESET MENU ORIENTATION PORTRAIT PARALLEL MENU FORM 64LINES BIDIRECTION ON INSTALLED OPTIONS FNTSRC INTERNAL TIMEOUT 15 7 BIN SORTER FONTNUM 0 3 SPEED 7 BIN SORTER VER 5 7 PITCH 10 00 TEST MENU PITCH 1000 SHOW PAGE COUNT TOTAL MEMORY 8 MB TEST PRINT PRINT PCL FONTS AUTOSENSED PAPER FEEDER MENU PRINT PCL DEMO UPPER M FEED LOWER CONTINUOUS TEST LOWER A4 7 BIN SORTER MODE STACKING OUTPUT 7 BIN SORTER FORM 64LINES LANGUAGE MENU PRINTER DETAILS TRAY SWITCH ON LANG ENGLISH CODE LEVELS MANUAL OFF CTL B1 0408 14 98 MPTSIZE A4 PAPER TYPE MENU ENGINE OC UPPER PLAIN em 05 10 LOWER PLAIN 4 CONFIG PAGE COUNT 1 JAMRECOVERY ON MPT PLAIN AUTOCONT OFF DENSITY 7 PWRSAV 15 MIN ECONOMY MODE OFF REFINE ON Canon the Canon logo and LBP are trademarks of Canon Inc PCL and PCLS are trademarks of Hewlett Packard Company Figure 4 1 3 CHAPTER 4 II IMAGE DEFECTS If the factor of the malfunction is identified as image defects by the malfunction diagnosis flow chart Figure 4 1 1 find out the cause of the failure according to the table below and clear the problem Table 4 2 1 e 11 Light Output very light image e 12 Dark Output very dark image e I 3 Completely Blank Output no image e 14 All Black Output all black paper e I 5 Dots in Vertical Lines Output white d
75. If the voltage changes from 0 to more than 18V replace the electrical unit fan 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 8 13 2 ERROR FAM 2 CALL FOR SERVICE Power supply fan FM2 failure Possible causes 1 The 2 drive signal line connector is loose Action Reconnect connector J216 on the DC controller PCB 2 The power supply fan is defective CHAPTER 4 Action Disconnect connector J216 on the DC controller PCB Turn the power switch ON and measure the voltage between connector J216 1 FAN2D and J216 3 GND on the DC controller PCB If the voltage changes from 0 to more than 18V replace the power supply fan 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 9 13 3 ERROR FAM 3 CALL FOR SERVICE Fixing unit scanner fan FM1 failure Possible causes 1 The 1 drive signal line connector is loose Action Reconnect connector J208 on the DC controller PCB 2 The fixing unit scanner fan is defective Action Disconnect connector J208 on the DC controller PCB Turn the power switch ON and measure the voltage between connector J208 1 FAN1D and J208 3 GND on the DC controller PCB If the voltage changes from 0 to more than 18V replace the fixing unit scanner fan 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 10 13 4 ERROR FAM 4 CALL FOR SERVICE Fixing unit fan FM4 failure Possible causes
76. OM PS1201 O SW1603 SW1604L PS1203 PS1 204 FACE DOWN TRAY DELIVERY SENSE signal FDOUTS FACE DOWN TRAY PAPER FULL SENSE signal FDFULS FIXING UNIT DELIVERY SENSE signal FPOUTS UPPER CASSETTE PAPER SIZE SENSE signal LOWER CASSETTE PAPER SIZE SENSE signal LOWER CASSETTE PAPER LEVEL SENSE signal 1 LPVS1 LOWER CASSETTE PAPER LEVEL SENSE signal 2 LPVS2 LOWER CASSETTE SENSE signal LDECKC LOWER CASSETTE PAPER OUT SENSE signal LDECKS UPPER CASSETTE PAPER LEVEL SENSE signal 1 UPVS1 UPPER CASSETTE PAPER LEVEL SENSE signal 2 UPVS2 UPPER CASSETTE SENSE signal UDECKC UPPER CASSETTE PAPER OUT SENSE signal UDECKS REGISTRATION PAPER SENSE signal REGS MULTI PURPOSE TRAY PAPER SENSE signal IMPTPS LIFTING PLATE SENSE signal MPTLS PICK UP UNIT PAPER SENSE signal FEEDS Figure 2 5 1 PS1 Registration paper sensor PS2 Pick up unit paper sensor PS1201 1202 1203 1204 1205 1206 1207 1208 1301 1302 1401 1402 1403 SW1601 SW1602 SW1603 SW1604 Lower cassette sensor Upper cassette sensor Lower cassette paper level sensor 1 Lower cassette paper level sensor 2 Upper cassette paper level sensor 1 Upper cassette paper level sensor 2 Lower cassette paper out sensor Upper cassette paper out sensor Multi purpose tray paper sensor Lifting plate position se
77. PVS2 LPVS1 UPVS2 UPVS1 RDOORS 24VA GND GND PICK UP MOTOR CONTROL signal PICK UP MOTOR CONTROL signal PICK UP MOTOR CONTROL signal PICK UP MOTOR CONTROL signal UPPER CASSETTE PAPER OUT SENSE signal UPPER CASSETTE SENSE signal FEED CLUTCH DRIVE signal PICK UP UNIT PAPER SENSE signal CASSETTE PICK UP SOLENOID DRIVE signal LOWER CASSETTE PAPER OUT SENSE signal LOWER CASSETTE SENSE signal LOWER CASSETTE PAPER LEVEL SENSE signal 2 LOWER CASSETTE PAPER LEVEL SENSE signal 1 UPPER CASSETTE PAPER LEVEL SENSE signal 2 UPPER CASSETTE PAPER LEVEL SENSE signal 1 PIK UP UNIT DOOR OPEN SENSE signal Connector Abbreviation APPENDIX Signal name J220 TRFVCNT TRFVSNS TRFCCD TRFCLK N C HVTCLK DEVACD DEVACCLK DEVDCD TONSNS 24VGND DCHGBD DCHGUP N C N C PRIACCLK PRIACD PRIDCD DENADJ 24VGND 2 TRANSFER BIAS CONTROLL signal TRANSFER BIAS MONITOR signal TRANSFER BIAS CONSTANT CURRENT DRIVE signal TRANSFER BIAS FREQUENCY OUTPUT signal HIGH VOLTAGE BIAS FREQUENCY OUT PUT signal DEVELOPING AC BIAS DRIVE signal DEVELOPING AC BIAS FREQUENCY OUT PUT signal DEVELOPING DC BIAS DRIVE signal LEVEL signal TRANSFER NEGATIVE BIAS DRIVE signal FIXING ROLLER BIAS DRIVE signal DISCHARGE BIAS DRIVE signal DISCHARGE BIAS SWITCH signal PRIMARY AC BIAS FREQVENCY OUTPUT signal PRIMARY AC BIAS DRIVE signal PRIMARY DC BIAS DRIVE signal IMAGE DENSITY AD JUSTMENT signal
78. S To open the RESET menu press RESET Press Plus Minus to select PRINTER or MENU PRINT TOKEN CONFIG PRINT PCL FONTS Shaded menus appear after an option has been installed E g A 72 module with RESET MENU PRINT PS DEMO the Adobe PostScript 3 software or Network cards RESET PRINTER MENU If there is insufficient memory MEMCONFIG may not appear in PostScript mode even after the A 72 module has been installed MEMCONFIG usually appears in CONTINUOUS TEST PRINT PCL DEMO PCL mode Figure 1 7 2 l I II III CHAPTER 2 OPERATION AND TIMING This chapter describes the printer functions the relationships between mechanisms and cir cuits and the timing of operations Mechanical linkages are indicated by black and white lines the flow of control signals by solid arrows gt and the flow of groups of signals by outline arrows An active high signal is indicated by H or by a signal name without a slash in front of it such as 5 An active low signal is indicated by L or by a signal name with a slash in front of such as SCNON A signal that is H or has a name without a slash is active at the supply voltage level indicating that the signal is being output and inactive at ground level indicating that the signal is not being output A signal that is L or has a slash in front of its name is active at ground level and inac tive at the supply voltage level There is a microco
79. Timing chart for two consecutive prints on A4 paper Lower cassette feed face down tray delivery Power switch ON Unit Seconds WAT STE 160 170 16996 o contrb 1 Fixing roller heater H1 H2 190 Cscgntrol 169 control 169 C control 2 Fan 1 2 Low speed rotation poo A 00 About 30 0 Low speed rotation 3 Fan 5 About 15 0 4 PRINT signal PRNT Low speed rotation 5 VERTICAL SYNC signal NSYNC Scanner motor M1 7 Scanner motor ready SCNRDY About 1 5 Main motor MT1 E Cassette pick up solenoid SL1 About 1 2 0 Pick up motor SMT1 About 1 5 1 Feed chligtnsRse yotation Rotatio 2 Registration clutch CL1 3 Pick up unit paper sensor PS2 4 Registration paper sensor PS1 5 Fixing unit delivery sensor PS1403 Face down tray delivery sensor PS1402 7 Primary voltage AC 8 Primary voltage DC 9 Developing bias AC 0 82 About 0 31 0 31 Negative bias Between page bias Printbias Between page bias 10 47 2 04 High voltage bias 0 Developing bias DC 1 Transfer voltage 2 Negative bias Static charge eliminator bias 3 E E B Upper fixing roller bias GENERAL CIRCUIT DIAGRAM 1 2
80. UT BINS A paper jam occurred at the stapler stacker output bins Check the area specified 15 1 STACKER JAM Jam at entrance sensor Initial Jam 15 2 STACKER JAM Jam at entrance sensor Stay Jam 15 3 STACKER JAM Jam at entrance sensor Delay Jam 15 4 STACKER JAM Jam at entrance sensor Early Jam 16 1 STACKER JAM Jam at reversing sensor Initial Jam 16 2 STACKER JAM Jam at reversing sensor Stay Jam 16 3 STACKER JAM Jam at reversing sensor Delay Jam 16 4 STACKER JAM Jam at reversing sensor Early Jam 17 1 STACKER JAM Jam at delivery paper sensor Initial Jam 17 2 STACKER JAM Jam at delivery paper sensor Stay Jam 17 3 STACKER JAM Jam at delivery paper sensor Delay Jam 17 4 STACKER JAM Jam at delivery paper sensor Early Jam 18 1 STACKER JAM Jam at staple tray paper sensor Initial Jam 18 2 STACKER JAM Jam at staple tray paper sensor Stay Jam 18 3 STACKER JAM Jam at staple tray paper sensor Delay Jam 18 4 STACKER JAM Jam at staple tray paper sensor Check the stapler stacker Remove jammed paper and close Cover STAPLE JAM OPEN STAPLER COVER Jam near the stapler Clear jam 19 1 SORTER JAM Jam at entrance sensor Initial Jam Check the soter Remove jammed A 17 APPENDIX Message Meaning Action 19 2 SORTER JAM Jam at entrance sensor S
81. Y TONER LOW Toner is low Replace the toner cartridge as soon as possible The printer will continue to operate but the images will degrade TONER CART MISSING Toner cartridge is missing Add toner cartridge PRINTING TO STD TRAY Display for the duration that the printer takes to process the job when the bin s in the sorter are full and the output is directed to the standard tray No action required LOAD lt MEDIA gt lt SIZE gt IN lt TRAY gt A 14 Load the specified tray with paper size Size LETTER Letter paper size LEGAL Legal paper size 11X17 Ledger paper size A3 A3 paper size A4 A4 paper size 5 paper size 11x17 paper size EXEC Executive paper size COM10 Commercial 10 envelope MONARCH Monarch envelope DL DL envelope C5 C5 envelope B5JIS B5 paper size B5ISO B5 envelope B4 B4 paper size CUSTOM Custom paper size ANY Unknown paper size Tray UPPER Internal upper cassette LOWER Internal lower cassette DECK 2000 sheet Large Capacity tray Upper cassette of 2x500 deck 2 Lower cassette of 2x500 deck MPT Multi purpose tray ENV Envelope feeder ANY TRAY any paper tray that can support Letter Legal B4 or A4 The specified tray must be loaded with the specified paper size and media type Depending upon circumstances the Continue key may be required to continue
82. age 4 11 identify the dirty roller s and clean the dirty areas If the dirt cannot be removed replace the dirty roller s 3 Dirty delivery roller Action Clean the delivery roller II 10 Blank spots Possible causes 1 Lack of toner Action Remove the cartridge from the printer Rock the cartridge in the way described in the chapter 1 and then install it back in the printer If the problem persists replace the cartridge 2 The transfer charging roller is dirty or deformed Action Replace the transfer charging roller 3 Defective photosensitive drum or developing cylinder Action Replace the cartridge II 11 White vertical lines Possible causes 1 Lack of toner Action Remove the cartridge from the printer Rock the cartridge in the way described in the chapter 1 and then install it back in the printer If the problem persists replace the cartridge 2 Circumferential scars on the photosensitive drum Action Replace the cartridge 3 Defective developing cylinder Action Replace the cartridge 4 Foreign materials are on the laser outlet of the printer or the laser inlet of the cartridge 4 11 CHAPTER 4 Action Remove the foreign materials 5 The upper fixing roller surface is damaged or dented Action Replace the upper fixing roller 6 The mirror in the laser scanner unit is dirty Action Replace the laser scanner unit II 12 White horizontal lines Possible causes 1 Horizontal
83. all follow the directions below 1 After the printer has entered standby mode set the DISPLAY SET UP switch to DISPLAY 2 Set the MODE SELECT to 1 3 Look up the corresponding chart for the bit that is lit up by a DATA LED For example when a fixing unit failure occurs the LED of bit 16 will light up PRINTER DRIVER DATA 1 bit16 bit15 bit14 bit13 bit 12 bitii bit10 bit9 bit8 bit7 bit6 bit5 bit4 bit2 biti e TEST r DATA SET 1 ENTER PRINT MODE SELECT bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 i 5 6 7 1 1 1 1 1 1 1 DISPLAY 00000000000 O OFF SET UP 1 11 RY9 0104 MADE IN JAPAN Figure 4 8 5 Table 4 8 6 Mode select 1 Display Content Details Set Up Content Details Fixing unit malfunction BD malfunction Laser malfunction Main motor malfunction l0 Scanner motor malfunction Fan motor malfunction Duplex pick up roller malfunction When duplexing unit is installed Lifting plate malfunction Side registration guide malfunction When duplexing unit is installed Misprint Cartridge out Paper out Door open Jam Printer ready AWK WOO OF c CHAPTER 4 Itemize the Data Set Select SET UP with the DISPLAY SET UP switch Various settings and commands can be made according to the DATA SET see table 4 8 4 For example when comma
84. and seven menu and operation keys 10 9 78 Disk t A Error staple On Line Continue Form Feed Reset Enter m 5 C CA GD Menu Item Plus Minus Shift 17 46 45 44 439 42 10 9 Figure 1 7 1 Error indicator 1 On An error has occurred and printing has stopped Check the display for a message describing the problem Off Operation is normal and there is no error Power indicator 2 On The printer is ready to print Flashing The printer is warming up Wait until the light stays on before you start printing operations Off CHAPTER 1 printer cannot print Continue indicator 3 On Indicates the Continue button may be pressed to exit current condition For instance if the mes sage TONER LOW appears in the display panel press Continue to continue printing but be sure to change the toner as soon as possible Off Operation is normal Status indication display 4 The two line 20 digit display tells you what is happening inside the printer and shows you the menus and settings which can be changed The display keeps you informed about the printer s operation status lets you make menu selections warns you about problems and identifies errors Form Feed key 5 Performs a Form Feed and prints data remaining in the FORM printer If the Form Feed indica tor is on data remains i
85. anner BD Registration o clutc ixi i 3 5 5 motor a Lk Fixing unit Video controller panel 7654321 4321 Scanner unit o HVT 7654321 12345678910 fan NSS EE A AN 11213 xXi noxmoxmoxmoxmoxmoxnozmoxmoamosmosmoOxdoxmoraoxmo 7 6 5 4 3 2 1 4 3 2 1 o E 1213 Es gerra 16181413211 2 8 cozgzmidzogzmumzsz xaxanxm 7654321 12341567890 An S JE 1 E 2 1 3 2 1 D r3 r3 7 6 5 4 211 Ferite z 5 PIS ME oH tt sz 32 1 32H 1110 9 1817165 4 3 2 1 11213 1 2 3 QI co E 10 I0 CO I 00 O Q OQ NO a x x x 101010 or 112131415 617 2131415 213415 amp m osmosmoczmozmosmo cmoczmosS0O0rfRn5Lmn5lran5lnoimnoxnoxno co coeur P 30 jQxxoanoaosasaaoamcm 585553 5858222228 52645852220929249992 2225 a m el oo o002RL g5tcrcTLTTODPpPOSOREIQOEgO0000071T t t tTO0000 7 gt gt 559585229944 51234567 9110987654321 91234567 912345 12345 R123 4123 u 4 SSORLSBSS bebeicors E uzicuroEa gt gt gt zzo00xox gt gt oxonad gt ava 99 2090 o N m
86. ansport troubleshooting malfunction troubleshooting and malfunction sta tus troubleshooting If a malfunction occurred in the printer the service technician is to find the factor according to the malfunction diagnosis flowchart and to clear the problem following the action procedure for each malfunction Make sure the following points at the execution of troubleshooting sure that the connector has no poor contact when measuring the voltage at the specified terminal of the connector Before handling PCBs be sure to touch a metal part of the printer to discharge static elec tricity as it can cause damage to the PCBs Do not attempt to disassemble the laser scanner unit as it cannot be adjusted in the field 66 CHAPTER 4 Initial check execution Power ON NO to the item malfunction Displays operator call 2 troubleshooting or service call Displays READY Refer to the item malfunction status troubleshooting Is test print executable Note 1 Yes Make a test print Yes Occurs paper jam Refer to the item paper jams No No Refer to the item paper transport troubleshooting Delivers paper normally Yes Occurs image defect Note 2 Yes Refer to the item image defects No Yes Refer to the item malfunction Displays operator call status troubleshooting or service call No END Figure 4 1
87. assette paper size detection cassette paper level detection The upper and lower cassettes detection is executed by the upper cassette sensor 51202 and the lower cassette sensor PS1201 The paper detection in the upper and lower cassettes is exe cuted by the upper cassette paper out sensor 51208 and the lower cassette paper out sensor PS1207 The paper size detection is executed by the upper and lower cassette paper size detec tion switches SW1601 to SW1604 installed to each cassette Each cassette has the four switches The combinations of the cassette paper size detection switches are shown in Table 2 5 1 2 5 1 Cassette paper size sensing switch Paper size 5 1601 SW1602 SW1603 SW1604 Ledger OFF OFF OFF OFF A3 OFF ON OFF OFF B4 ON OFF OFF OFF Legal ON ON OFF OFF Letter OFF OFF OFF ON A4 OFF OFF ON OFF The remaining paper level in the cassette is detected according to the lifter position The lifter contains a light blocking plate which blocks two sensors on the pick up PCB The lifter position is detected by these sensors And as a result the remaining paper level in the cassette is detect ed The remaining paper level in the upper cassette is detected by the combination of outputs from the upper cassette paper level sensor 1 PS1205 and the upper cassette paper level sen sor 2 PS1206 The paper level in the lower cassette is detected by the combination of outputs from the l
88. ble at the outlet The power cord is not firmly plugged into the printer the option with power receptacle and the outlet Action Push the power plugs in firmly The circuit breaker is OFF Action Remove the power supply Press the circuit breaker button to set the circuit break er ON Turn the circuit breaker ON 30 seconds after it is activated turned OFF Before plugging the power cord into the outlet turn the power switch ON and check the AC line circuit short and the circuit breaker states continuity and contact resistance using a multimeter The power supply is defective Action Replace the power supply No DC Power Input lt Possible causes gt l The AC power is not present Action Make a check using the steps of E 1 No AC Power Input overcurrent overvoltage detection circuit is active Action If the problem is not rectified when the power switch is turned OFF and ON again find the cause of activation of the overcurrent overvoltage detection circuit of the power supply Turn the power switch OFF for 2 minutes then turn it ON again The fuse has blown Action Remove the power supply and replace the fuse The power supply is defective Action Turn the power switch OFF and disconnect the connector J204 from the DC con troller PCB Plug the power cable and turn the power switch ON Measure the DC power supply output of the connector J204 Do not short the connector If the cor rect value is not
89. ce the option controller OPT CONTROLLER COMMUNICATIONS ERROR Cable s are not connected in or there is a problem with the Options Controller Reconnect cable s or replace the option controller ERROR DISK CALL FOR SERVICE Hard Drive Failure Read Error Replace the hard disk MEMORY ALLOC ERROR GRS has been unable to allocate the memory it needs The job will resume after 10 sec onds if AUTOCONT is ON Otherwise press the CONTINUE key to resume printing Check the page that ejects since the image could not be processed requested PS OPTION ERROR Option PS ROM DIMM diagnostic error An option ROM has failed its startup checksum and needs to be reprogrammed or replaced ETHERNET OPTION ERROR The Ethernet boad is not communicating with the controller Replace the Ethernet boad RING OPTION ERROR The Token Ring boad is not communicating with the controller Replace the Token Ring boad 10 1 ERROR FUSER CALL FOR SERVICE Fixing unit failure Abnormally low tempera ture warm up time out 10 2 ERROR FUSER CALL FOR SERVICE Fixing unit failure Abnormally low tempera ture warm up time out 10 3 ERROR FUSER CALL FOR SERVICE Fixing unit failure Abnormally high tempera ture 10 4 ERROR FUSER A 18 Fixing unit failure wrong type Perform the troubleshooting pro cedure described in section VI of Chapter 4
90. connect the 19 connectors from the DC controller PCB 3 Remove the 2 screws M3 and the 2 screws M4 4 Unhook the claw and then remove the DC controller PCB Connectors Screws Screws M4 Claw amp DC controller PCB Figure 3 8 6 CHAPTER 3 D Pick up PCB 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Disconnect the 6 connectors 3 Remove the screw disconnect the 2 claws and take out the pick up PCB Connectors Q Screw Claws Pick up Figure 3 8 7 1 2 3 4 Multi purpose Tray PCB Remove the multi purpose tray pick up unit following steps 1 6 on Page 3 12 Remove the multi purpose tray pick up unit fan following steps 2 3 on Page 3 40 Remove the multi purpose tray pick up clutch following steps 2 3 on Page 3 32 Disconnect the 2 connectors Connector 5 Figure 3 8 8 Remove the spring and then the lifting plate position detection arm Spring Q Lifting plate position detection arm Figure 3 8 9 6 Remove the screw 7 Unhook the claw and then remove the multi purpose tray PCB Q us Screw Claw G Multi purpose tray PCB Figure 3 8 10 CHAPTER 3 F Switch Sensor PCB 1 Remove the upper cover unit 2 Remove the right rear and rear covers 3 Remove the left rear cover 4 Remove the connector the 2 screws and then the fan duct 5 Remove the 4 screws fe
91. d leading edge Possible causes 1 Curled paper Action A devise the user to straighten the paper 2 After executing a test print open the top cover before the paper enters the fixing unit If the paper is wrinkled at this point go to step 6 3 The fixing entry guide is dirty Action Clean the guide 4 The lower fixing roller is dirty Action Clean the lower fixing roller 5 The fixing roller is deformed or worn Action Replace the worn or deformed roller 6 Paper dust or dirt is accumulated on the feed roller registration roller or feed guide Action Clean the dirty areas 7 Scarred or dirty feed guide Action Check the paper path Replace any scarred or deformed guide s IV 3 Skew Possible causes 1 Paper dust or dirt is adhering to the registration rollers or the feed guide Action Remove the paper dust or dirt CHAPTER 4 2 The spring of the registration roller unit is out of place Action If the spring is out of place set it in the right position or replace it with new one CHAPTER 4 MALFUNCTION TROUBLESHOOTING If the factor of the malfunction is identified as malfunction troubleshooting by the malfunction diagnosis flowchart Figure 4 1 1 execute the followings and mend the malfunction V 1 No AC Power Input lt Possible causes gt 1 V 2 The correct voltage is not present at the outlet Action Inform the customer that the correct line voltage is not availa
92. d of time T2 after receiving the VERTICAL SYNC signal VSYNC Ledger about 7 0 seconds Legal about 6 4 seconds Letter about 5 5 seconds A3 about 6 9 seconds B4 about 6 5 seconds A4 about 5 4 seconds CHAPTER 2 7 Residual paper jam a The CPU assesses a residual paper jam if the fixing unit delivery sensor PS1403 detects the paper after the power ON b The CPU assesses a residual paper jam if it does not receive an automatic delivery command within 3 minutes after notifying the video controller of the presence of paper which can be automatically delivered out of the printer c The CPU assesses a residual paper jam if one of the following sensors detects the paper after the printer has performed an automatic delivery of the relevant paper after the power switch is turned ON and the fixing roller has reached the specified temperature 150 C Registration paper sensor PS1 Pick up unit paper sensor PS2 Fixing unit delivery sensor PS1403 Face down tray delivery sensor PS1402 CHAPTER 2 OVERALL CONTROL SYSTEM A Video Controller PCB 1 Outline The video controller PCB receives print data consisting of code or image data sent from the exter nal device host computer etc through the interface cable The print data including the contents specified by the control panel is analyzed processed and converted into the dot data within this PCB The dot data is sent to the engine controller PCB to turn ON O
93. d take out the pick up unit Screw M3x10 Screw M3x8 Pick up unit Figure 3 3 7 CHAPTER 3 Notes 1 While replacing parts in the pick up unit to prevent grease from getting on the pick up feed and separation rollers be sure to remove them before working on the unit Take care not to get grease on the paper feed guide Be sure to grease the parts shown in figure 3 3 8 when exchanging to prevent noise The type of grease do not use grease other than the specified type and the method of applica tion is explained below Apply about one drop 1mm diameter of HY9 0007 to the contact surface a of the roller holder 1 and shaft 2 Apply a few drops total bmm diameter of CK 8009 to 3 or more continuous cogs of the parts 3 to 9 Apply CK 8009 to the whole cog surface of the lifter 10 thinly CHAPTER 3 Roller holder Shaft 57T gear Upper lift up cam Pick up cam 100T gear 20 41 gear Lower lift up cam 31T 47T gear Lifter Figure 3 3 8 CHAPTER 3 D Multi purpose Tray Pick up Unit 1 Remove the front cover 2 Remove the rear cover 3 Remove the multi purpose tray 4 Open the pick up unit door 5 Disconnect the 2 connectors and then remove the cable from the cable guide R 1 a i EV oM Connectors 2 Cable guide Cable Figure 3 3 9 6 Remove the 4 screws and then the multi purpose tray pick up uni
94. drives except the fan motor 3 The sleep mode setting can not be released When releasing turn the printer power ON OFF again CHAPTER 4 H Solvents and Oil List Table 4 8 9 Material name Use Components Remarks Alcohol ethyl pure or denatured or isopropyl pure or denatured Cleaning plastic rubber CoHsOH Purchase locally Flammable keep away from flame MEK methyl ethyl ketone Cleaning oil and toner stains CH3CO C3Hg Purchase locally Highly flammable keep away from flame Lubricating oil Apply between gear and shaft Petroleum mineral oil Tool No CK 8003 100 ml bottle Lubricating agent Apply to gears Special oil Special solid lubricating material Lithium soap Tool No HY9 0007 20 g tube Lubricating agent Apply to gears of the pick up unit Lithium oil Tool No CK 8005 40 g bottle Lubricating agent Apply to gears of the pick up unit Refer to Chapter 3 Poly olefin oil Lithium soap Tool No CK 8009 20 g tube CHAPTER 4 IX LOCATION CONNECTORS J218 J216 J221 gt 435 91001 Figure 4 9 1 CHAPTER 4 Figure 4 9 2 4 49 CHAPTER 4 I II APPENDIX GENERAL TIMING CHART A 1 GENERAL CIRCUIT DIAGRAM LIST OF SIGNALS IV MESSAGES TABLE GENERAL TIMING CHART
95. e Heater current detection e The CPU detects a fixing heater broken wire if the FIXING HEATER CURRENT SENSE signal FSRCT level is same as the all heaters OFF level when the fixing main heater or and fixing sub heater is are driven The CPU detects a fixing heater excursion if the FIXING HEATER CURRENT SENSE signal FSRCT level is higher than the fixing main heater and fixing sub heater ON level when the fixing main heater or and fixing sub heater is are OFF e The CPU detects a fixing heater excursion if the FIXING HEATER CURRENT SENSE signal FSRCT level is higher than the specified value when both heaters are OFF Note There are two thermistor voltage detection modes error detection mode and normal mode In the error detection mode sensitivity in the initial range low temperature range is increased to improve detection accuracy When the thermistor temperature exceeds 60 C it changes to the normal mode If the CPU detects a fixing unit failure it does the following 1 Stops the fixing roller heater 2 Sets the RELAY DRIVE signal RLD to and turns the relay in the power supply OFF to interrupt the power to the fixing roller heater 3 Reports the fixing unit failure to the video controller CHAPTER 2 4 Envelope position lever function This printer can adjust the nip width in two steps by changing the spring pressure of the lower fixing roller If an envelope wrinkles after it is printed set the envelop
96. e BD detects the laser beam generates BD INPUT signal BDI and sends it to the CPU The CPU generates a BEAM DETECTION signal BD according to the BDI signal and sends it to the video controller PCB 4 Laser diode emission control Based on the paper size data the CPU generates a VIDEO ENABLE signal LENBL and sends it to the logic circuit of the laser driver IC The VDOUT signal is masked by the LENBL sig nal in the logic circuit which controls the emission period of the laser diode The paper size data is supplied to the CPU by the cassette paper size switches for cassette pick up and by the paper size specification command from the video controller PCB for multi purpose tray pick up The CPU generates the IMAGE TOP ERASE AND BOTTOM ERASE signal TOPE and HORI ZONTAL IMAGE MASK signal according to the paper size data TOPE MSK are used inside the CPU and are not output externally To prevent the laser beam from writing on non image area during the non unblanking peri od the CPU sets the VIDEO ENABLE signal LENBL to L only when the TOPE sig nals are L The laser driver turns the laser diode ON when the LENBL signal and VDOUT signal are L CHAPTER 2 BD 9 gt Mer ry S a 4 N He em wd Hm gt lt 3 mm 3 mm Figure 2 3 3 Notes 1 The shaded area indicates the area where the laser beam writes on the drum 2 T1 a
97. e item Press Plus Minus key until you display the values you want to change If you want to change the setting press the Plus Minus key until the value you want is displayed Then press the Enter key Press the On Line key to set the printer on line Figure 1 7 2 list the Menu Operation Flow 2 Restoring the default settings There are several types of default settings 3 Factory default settings are those set for each menu item at the factory The printer uses these settings changed Temporary default settings are those set by the application software for the current print job Permanent default settings are those set through the operation panel These selections remain in effect even when the printer is turned off or send a different request through the application Resetting the default values printer can be reset in three ways reset printer function clears the memory of all fonts macros and page information but does not affect the menu settings CHAPTER 1 The reset menu function performs a printer reset to clear all fonts macros and page infor mation but returns some of the menu settings to their original factory defaults cold reset clears the memory and restores all menu settings to their factory settings with the exception of the page count value multi purpose tray page size envelope feeder size and display language To perform a cold reset press and hold down the On
98. e laser scanner unit cover DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEA CAUTION INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM ATTENTION RAYONNEMENT LASER INVISIBLE EN CAS D O UVERTURE EXPOSITION DANGEREUSE AU FAISCEAU VORSICHT UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEOFFNET NICHT DEM STRAHL AUSSETZEN ATTENZIONE RADIAZIONE LASER INVISIBILE IN CASO DI APERTURA EVITARE L ESPOSIZIONE AL FASCIO PRECAUCION RADIACION LASER INVISIBLE CUANDO SE ABRE EVITAR EXPONERSE AL RAYO VARO AVATTAESSA OLET ALTTIINA NAKYMATTOMALLE LASERSATEILYLLE ALA KATSO SATEESEEN VARNING OSYNLIG LASERSTRALNING NAR DENNA DEL OPPNAD BETRAKTA EJ STRALEN ADVARSEL USYNLIG LASER STRALING NAR DENNE ER BEN UNDGABESTRALING ADVARSEL USYNLIG LASERSTRALING DEKSEL APNES UNNG EKSPONERING FOR STRALEN Figure 1 3 1 B Toner Safety Composed of plastic and minute colored components toner is a non poisonous substance If toner adheres to your skin or clothes remove as much of it as possible with dry tissue paper then wash with cold water If you use hot water the toner will gel and become difficult to remove As toner easily breaks down vinyl materials avoid letting toner come into contact with vinyl C Ozone Safety An infinitesimal amount of ozone gas O is generated during corona discharge from the charg ing roller used in this printer The ozone gas is emitted
99. e made The side registration adjustment levers see Figure 4 7 2 in the upper and lower cassettes are adjusted in the factory Therefore there is no need to make any adjustments when installing the printer However when either upper or lower cassette is replaced in the field re adjustment of the left margin is necessary This procedure is outlined below 1 2 3 4 Load 20 to 30 sheets of paper into the cassette Then using the printer driver tester print several pages of all black or horizontal line test prints Measure the distance a between the left edge of the page to the edge of the printed pattern see Figure 4 7 2 Measure several test prints to find the average distance Move the side registration adjustment lever based on Figure 4 7 2 so that the distance mea sured in step 2 become 3 0mm one notch alters length a by 0 5mm For example if the average length of step 2 is 2 0mm by moving the lever 2 steps clockwise the necessary adjustment of 1 0mm can be made Make several more test prints Make sure that the left margin is 3 0mm by repeating step 2 above If the margin needs further adjustment repeat steps 1 to 3 again 4 28 CHAPTER 4 The value of a drops by 0 5mm for each notch moved Leading edge of paper a The value of a rises by 0 5mm for each notch moved Figure 4 7 2 B Electrical Adjustment e No electrical adjustment for this printer CHAPTER 4 C Variable Re
100. e position lever to the enve lope position b ES R o TS Normal mode Envelope mode Figure 2 2 9 CHAPTER 2 CHAPTER 2 C High Voltage Power Supply J701 B7 J701 B8 J701 B9 J701 A6 J701 B10 J701 A9 J701 A7 J701 A8 J701 A10 J701 A3 J701 A1 J701 A4 J701 A2 J701 B1 J701 B2 J701 B3 J701 B4 J701 A12 J701 B12 J701 A11 J701 B11 2 16 Transfer Negative Voltage Transformer Drive Circuit Negative Voltage Generation Circuit Transfer Negative Voltage Transformer T701 PR1ACCLK i i AC Transformer Primary AC PR1 _ TB701 PRTACD Drive Circuit Transformer primary AC Current charging roller detection Circuit PRI DCD 1702 AC Transformer Primary DC r Drive Circuit Transformer i DENADJ Image Density Adjustment Circuit T704 DC Transformer Developing DC JBEVDOGD Drive Circuit Transformer JDEVACD gt 1703 AC Transformer Developing DEV 702 gt DEVACCLK gt Drive Circuit To developing cylinder 5 8 Toner detection 18703 i Circuit From toner sensor TRFCCD Tra
101. e tray PCB Measure the resistance between connector J1303 1 and J1303 2 on the cable side If it is not about 1550 replace the multi purpose tray pick up clutch The multi purpose tray PCB is defective Action Replace the multi purpose tray PCB The DC controller PCB is defective Action Replace the DC controller PCB III 2 Cassette pick up block Possible causes l The print paper is bent Action Replace the paper The cassette pick up roller separation roller or feed roller is worn or deformed Action Replace if worn or deformed Replace the separation roller and the feed roller together Pick up drive unit is damaged Action Remove the pick up unit and replace any damaged parts The pick up motor is defective Action Use the printer driver tester to rotate the paper pick up motor If it does not rotate replace it The cassette pick up solenoid is defective Action Remove the pick up unit and disconnect cassette pick up solenoid connector J1203 from the pick up PCB Measure the resistance between connector J1203 1 and J1203 2 on the cable side If it is not about 1900 replace the cassette pick up solenoid The pick up PCB is defective CHAPTER 4 7 Action Replace the pick up PCB DC controller is defective Action Replace the DC controller PCB III 3 Transfer and feed block Possible causes l The registration roller is worn deformed or dirty Action Clean the
102. equence During wait mode initial rotation and last rotation the printer sets the primary DC voltage to OV to make the charge on the drum OV At the same time the trans fer voltage is set to negative to remove the toner with a negative charge from the transfer charg ing roller to the drum The transfer charging roller is cleaned by removing the toner on its sur face to the drum Step 5 Separation Static charge eliminator DC bias Transfer charging roller Figure 2 4 11 The stiffness of the paper causes it to separate from the drum Thin paper or curled sheets to be duplex printed may not separate but remain wrapped around the drum To prevent this a negative bias is applied to the static charge eliminator to reduce electrostatic adhesion between the drum and paper and facilitate separation To stabilize the paper feed system and prevent droplets on the printed image at low temper ature and humidity the charge on the back of the paper is reduced by the static charge elimi nator after transfer CHAPTER 2 4 Fixing stage The toner image transferred onto the paper in the transfer stage is held only by electrostatic attraction and a slight physical adhesion so even a light touch will smear the image In the fixing stage the toner image is fixed by heating the paper and applying pressure This fuses the toner particles onto the paper to create a permanent image Step 6 Fixing Halogen heater Upper fixing roller CE Toner
103. er at an appropriate timing to move the toner attached to the transfer charging roller onto the photosensitive drum to clean the roller For the between page bias a positive low voltage is applied to the transfer charging roller at an appropriate timing so that the toner remaining on the photosensitive drum is not attracted to the transfer charging roller For print bias a positive voltage is applied to the transfer charging roller in order to transfer the toner on the photosensitive drum surface to the paper When the PRNT signal sent from the video controller becomes L initial rotation starts and a negative bias is applied to the roller for a certain time to clean the transfer charging roller Between page bias is then applied and a print bias is applied to the transfer charging roller after the prescribed time has elapsed since the VSYNC signal going A print bias is applied during the print sequence to transfer the toner onto the paper A between page bias is applied between pages After the completion of printing a between page bias and a negative bias are applied again to clean the transfer charging roller d Generation of print voltage to the discharger 2 voltage loads high and low output bias are applied to the discharger according to the various print sequences The discharger bias drive signal DCHGBD output from the DC Controller is L and when 2 17 CHAPTER 2 the discharger bias switch signal DCH
104. es the pick up roller The lifting plate position is detected by the lifting plate position sensor PS1302 If the sen sor detects that the lifting plate is up while waiting SL2 is turned ON to lower the lifting plate The manual feed clutch CL3 turns ON and the main motor power is transmitted to the manual feeding pick up roller Paper pressed against the manual feeding pick up roller by the lifting plate is picked up by the pick up roller Unnecessary sheets are removed by the separation pad and one sheet is fed into the printer by feed roller 2 The subsequent operations are almost the same as for those of cassette feeding except that SL2 is turned ON again right after the rotation of the registration roller to lower the lifting plate The CPU turns 512 to lower the lifting plate If it is normal the lifting plate position sen sor detects the lifting plate within about 0 5 seconds The CPU notifies the video controller of a lifting plate position failure if the lifting plate position sensor fails to detect the lifting plate 5 times in a row when the CPU repeats this operation 5 times Pick up timing from the manual feed A4 two pages continuously print Power switch ON Unit Seconds STBY INTR PRINT LSTR STBY PRINT signal PRNT p VERTICALSYNC signal Main motor MT1 Lifting plate solenoid SL2 30 0 27 1 093 0 27 2 03 C Manual feed clutc
105. ge Step 6 Fixing Step 7 Fixing roller cleaning 2 34 CHAPTER 2 5 Drum cleaning stage Step 8 Drum cleaning Electrostatic latent image formation a Paper path 4 Direction of drum rotation Print delivery EARN Cassette feed Figure 2 4 4 CHAPTER 2 1 Electrostatic latent image formation stage This stage follows two steps to produce an electrostatic latent image on the photosensitive drum At the end of the stage negative charges remain on the unexposed dark areas where the laser beam struck exposed the drum surface This image of negative charges on the drum is invisible to the eye so it is referred to as an called an electrostatic latent image 100 500 Primary Scanning Transfer Primary charge exposure step 4 charge step 1 step 2 step 1 Surface potential V Figure 2 4 5 Step 1 Primary charge Primary charging roller bias DC bias 777 Figure 2 4 6 For preparation of the latent image formation a uniform negative potential is applied to the pho tosensitive drum surface For primary charge the printer uses the charging method which directly charges the drum The primary charging roller is made of conductive rubber In addition to DC bias AC bias has been applied to the primary charging roller to keep the potential on the drum s surface uni form The DC bias is changed with the developing D
106. h CL3 Registration clutch CL1 1 87 J Registration paper sensor PS1 Figure 2 5 14 C Fixing and Delivery Unit CHAPTER 2 The upper and lower rollers of the fixing unit and the face up and face down delivery rollers are driven by the main motor The paper separated from the photosensitive drum is fed into the fixing unit and sent from the fixing unit by the fixing roller and fixing unit delivery roller The paper sent from the fixing unit is detected by the fixing unit delivery sensor PS1403 DC controller PCB 51401 51402 Face down delivery roller Flapper res Face up delivery roller MAIN MOTOR DRIVE signal IMMOTD PS1403 Fixing unit delivery roller FACE UP SOLENOID DRIVE signal FUSLD FACE DOWN TRAY DELIVERY SENSE signal FDOUTS FACE DOWN TRAY PAPER FULL SENSE signal FDFULS FIXING UNIT DELIVERY SENSE signal FPOUTS Figure 2 5 15 Lower fixing roller Upper fixing roller 51401 Face down tray paper full sensor 51402 Face down tray delivery sensor PS1403 Fixing unit delivery sensor SL3 Face up solenoid MT1 Main motor CHAPTER 2 The printer switches between face up and face down tray delivery with the face up deflector When the FACE UP SOLENOID DRIVE signal FUSLD becomes L the face up solenoid SL3 mo
107. h sensor PCB 8 The DC controller PCB is defective Action Replace the DC controller PCB CHAPTER 4 VII MEASUREMENT AND ADJUSTMENT A 1 Mechanical Adjustment Checking the nip width of the lower fixing roller The fixing unit is not designed to allow adjustment of the pressure nip width however the incorrect nip width can cause fixing problems 1 2 3 4 5 2 Follow the procedures below to check the nip width Make an all black print using an EP 72 cartridge and take the print to the customer s site Use the printer driver tester to output an all black print Place the all black print in the lower cassette of the printer with the printed side facing down Press the test print switch Turn OFF the printer when the leading edge of the print emerges at the face down tray Turn ON the printer 10 seconds later and operate the printer to deliver the print Measure the width of the glossy band across the paper and check that it meets the require ments as shown in Figure 4 7 1 Center a 6 5 1 0mm e Left right side b 6 9 1 0mm Difference between right side and left side 1 0mm or less Difference between right left sides and center b a c a 1 5mm or less Feed out direction 4 Center of A3 sized paper Figure 4 7 1 Side registration adjustment of the cassette When the side registration of the cassette is not aligned this adjustment needs to b
108. he main heater wire is broken Action Remove the fixing unit If there is no continuity between the fixing unit connector J50 3 FSRNI the upper right terminal of the left connector and J51 5 FSRN2 the upper right terminal of the right connector replace the main heater 6 The sub heater wire is broken Action Remove the fixing unit If there is no continuity between the fixing unit connector J50 4 FSRLI the lower right terminal of the left connector and J51 6 FSRL2 the lower right terminal of the right connector replace the sub heater 7 The thermoswitch is open Action Remove the fixing unit and wiring cover If there is no continuity between ther moswitch terminals replace the thermoswitch 8 The fixing unit drive circuit is defective Action Replace the power supply unit 9 The DC controller PCB is defective Action Replace the DC controller PCB CHAPTER 4 VI 2 10 3 ERROR FUSER CALL FOR SERVICE Fixing unit failure abnormal high temperature Possible causes l The thermistor has shorted Action Turn the power OFF and remove the fixing unit Measure the resistance between the fixing unit connector J50B 5 FSRTH and J50B 4 GNDTH The connector J50B is the upper terminal of the left connector If the resistance is 1 or less check the wiring from connector J222 on the DC controller PCB to the thermistor If it is normal replace the thermistor 2 The fixing unit drive circuit in the power supply
109. ignal sent from the video controller becomes L initial rotation starts the DC controller sets the PRIMARY AC BIAS DRIVE signal PRIACD to L The circuit then applies the primary AC bias to the primary charging roller After the specified period of time has elapsed the PRIMARY DC BIAS DRIVE signal PRIDCD goes L and the voltage superimpos ing primary AC bias onto primary DC bias is applied to the primary charging roller The primary DC bias changes with the developing DC bias according to the IMAGE DENSITY ADJUSTMENT signal DENADJ sent from the DC controller b Developing bias generation When the DEVELOPING DC BIAS DRIVE signal DEVDCD from the DC controller becomes L a developing DC bias is applied to the developing cylinder When the VERTICAL SYNC signal VSYNC is sent from the video controller the DC con troller outputs the DEVELOPING AC BIAS DRIVE signal DEVACD and DEVELOPING AC BIAS FREQUENCY OUTPUT signal DEVACCLK This circuit then applies the voltage superimpos ing developing DC bias and developing AC bias to the developing cylinder The developing DC bias changes according to the IMAGE DENSITY ADJUSTMENT signal DENADJ making the image density adjustable c Transfer charging roller voltage generation The negative between page and print bias are applied to the transfer charging roller according to the print sequence negative bias voltage is applied to the transfer charging roll
110. in the lower cassette These sensors detect the amount of paper remaining in the upper cassette L when there is paper in the lower cassette L when there is paper in the upper cassette L when there is paper on the multi purpose tray H when the lifting plate has risen CHAPTER 2 Switch sensor PCB 5 1 77 Face down ESI tray paper full 11401 10 J205 7 sensor PS1402 Face down i tray delivery 1 FDOUTS sensor PS1403 Fixing unit 11 8 delivery sensor FPOUTS 424VB 2 dB 1 4 5 SW1401 abii Door switch 5 J205 3 7 4 i 8 5 L9 6 0008 High voltage power PCB EP 72 cartridge supply PCB Peat 1 1 Q4 ANTIN rgzos 1701 10 220 10 TONSNS BM TANE i Cassette paper size sensing switch PCB os SW1601 1 1601 1 J215 5 LSIZE1 Lower cassette SW1602 2 4 Tues paper size SW1603 3 3 sensing switch i SW1604 4 LSIZES LSIZE4 1 5 6 USIZE1 USIZE2 USIZE3 USIZE4 reri gy ere TEE i os 5 1601 1 1601 1 215 10 Upper cassette 511602 2 9 paper size 603 3 8 sensing switch o 9W1604 4 7 Figure 2 2 3 77 DC controller H when the face down tray is fully loaded with
111. indicator 12 On Indicates that a page is currently being composed in the printer s memory To print the page before it is completed take the printer off line and press the Form Feed key Off No print data is currently stored in the printer s memory Item key 13 With a menu name displayed press the Item key to scroll through all the items on the menu and return to the first item To scroll back through the items in the opposite direction press the Shift and Item keys Depending on what options you have installed some items may not appear Continue key 14 Restarts printing after the printer displays a message and halts printing For most situations after you press Continue the message clears and printing resumes When the multi purpose tray is used as a manual feed station when MANUAL FEED ON you have to press the Continue key every time you need to feed a single sheet of paper Menu key 15 With the printer off line press the Menu key to scroll through the menu names and return to the first menu name To scroll back through the menu names in the opposite direction press the SHIFT and MENU keys Depending on what options have been installed some menu names may not appear On Line key 16 Takes the printer off line and back on line When the On Line indicator is on the printer is on line and ready to receive data and print When the On Line indicator is off the printer is off line and the other keys on the control panel can be
112. is being formatted This message also displays when the printer is booting up with an unfor matted or bad flash No action required FLASH FORMAT RESTART The operator has formatted the flash and the operation has completed The system will restart after the continue key is pressed Press the Continue key for the printer to reboot FLASH OVERFLOW The printer received more fonts macros data than it can fit into its FLASH ROM The print er is OFFLINE when this message is dis played Press the Continue key for the printer to go back to READY Formatting deleting Fonts macros should be per formed to regain more rom space or FLASH ERROR Error causes by flash format failure read or write failure Printer goes offline Job will be flushed receiving data Turn printer off and on The printer will attempt to reformat the flash when it s boot ing up If the attempt to reformat in error occurs while A 13 APPENDIX Message Meaning Action the flash fails FLASH ERROR will be displayed Remove the faulty flash rom and replace with new flash THEE CONFIRM CANCEL Where MAILBOX JOB SEPARATION STACKER or SORTING The operator is being asked to confirm the mode change in the sorter is really wanted This is in response to the foregoing message Press to accept confirm the mode change in the sorter or press to cancel the mode change READ
113. is defective Action Replace the power supply 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 3 10 4 ERROR FUSER CALL FOR SERVICE Fixing unit failure wrong type Possible causes l The rated voltage of the fixing unit does not match the line voltage Action Replace the fixing unit 2 The type detection circuit in the power supply is defective Action Replace the power supply 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 4 11 1 ERROR SCANNER CALL FOR SERVICE Scanner motor malfunction 11 2 ERROR SCANNER CALL FOR SERVICE Scanner motor malfunction Possible causes l The scanner motor drive line connectors are loose Action Reconnect connector 41 on the scanner driver PCB intermediate connector J18 and connector J207 on the DC controller PCB 2 The scanner motor driver is defective Action Use the printer driver tester to rotate the scanner motor If it does not rotate replace the laser scanner unit 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 5 11 3 ERROR SCANNER CALL FOR SERVICE BD malfunction 11 4 ERROR LASER CALL FOR SERVICE Laser malfunction Possible causes 1 The BD signal line connector is loose Action Reconnect connector J6 on the BD PCB and 4206 on the DC controller PCB CHAPTER 4 2 The laser drive signal line connectors are loose Action Reconnect connector J1001 on the
114. is manual is subject to change as the product is improved or redesigned All relevant information in such cases will be supplied in the Service Information Bulletins A thorough understanding of this printer based on information in this Manual and Service Information bulletins is required for maintaining its performance and for locating and repairing the causes of malfunctions DTP system This manual was produced on an Apple PowerMacintosh 9500 233 personal computer and output by an Apple LaserWriter 16 600 PS laser beam printer final pages were printed on DAINIPPON SCREEN MFG CO LTD DT R3100 All graphics were produced with Macromedia FreeHand J and all documents and page layouts were created with QuarkXPress E The video images were captured with SONY degital video camcorder and Radius PhotoDV capture board system and modified with Adobe Photoshop J II III II III II III CONTENTS CHAPTER 1 PRODUCT INFORMATION FEATURES 1 1 SPECIFICATIONS 1 3 A SAFETY INFORMATION 1 6 PARTS OF THE PRINTER 1 7 INSTALLATION 1 9 VI MAINTENANCE AND SERVICING BY THE CUSTOMER 1 18 VII OPERATION 1 21 CHAPTER 2 OPERATION AND TIMING BASIC OPERATION 2 1 A 2 1 B Basic Operation Sequences 2 2 C Power On Sequence
115. it moves smoothly Replace it if damaged 3 Fixing unit delivery sensor lever does not move smoothly or is damaged Action Adjust the lever so that it moves smoothly Replace it if damaged 4 Face down tray delivery sensor lever does not move smoothly or is damaged Action Adjust the lever so that it moves smoothly Replace it if damaged 5 Sensor failure Action Using the printer driver tester check the condition of the sensors If the LED of the tester does not light up when the sensor lever is shifted replace the sensor CHAPTER 4 VI 17 PRINTER OPEN message appears when the cover is closed Possible causes 1 The projection for the delivery cover is damaged Action Replace the delivery cover 2 The projection for the upper cover is damaged Action Replace the upper cover 3 The projection for the pick up unit door is damaged Action Replace the pick up unit door 4 The pick up unit door sensor is defective Action Using the printer driver tester check the condition of the sensor If the LED of the tester does not light up when the pick up unit door is opened replace the sensor 5 Interlock arm does not move smoothly or is damaged Action Adjust the arm so that it moves smoothly Replace it if damaged 6 Connector is loose Action Reconnect connector J1401 on the switch sensor PCB and connectors J205 and J221 on the DC controller PCB 7 door switch is defective Action Replace the switc
116. itch 1234 Power supply 8 11 FPOUTS 8 11 as i 12 gt aS Multi purpose FDOUTS 9 12 Switch sensor 2 amp pup Main motor Pick up PCB FUSLD 10 13 PCB A tray PCB Lower cassette 234 11 H 1 14 Es sensor J1302 T INE 5 51301 MAE 7 PS1202 TB 705 Teso sp SW1601 aL m J1202 GND 1 oS SW1602 FEDAD 1 SMT1 LSIZE4 2 2 E 22 s 9 16 Multi purpose Lifting plate Upper cassette FEDAND 2 2 LSIZE3 3 4 5 3 22 SW1603 SL3 tray paper sensor solenoid sensor FEDBD 3 3 M Pick up motor LSIZE2 4 2 907 51 1604 Face up J1308 81203 FEDBND 4 544 423 56 123456 Mese pap 3 Cassette size solenoid 4DAVA 5 2 o 7 sensing switch PS1302 1 8 USIZE3 8 8 016018 USIZE2 9 5 5 Manual feed Paperieve J1203 SL USIZE1 10 5 SW1601 5 Lifting plate sensor 1 2 Cassette pick up 4 4 02 position sensor PS1204 1 i 91 1602 PUPSLD 11 73 solenoid 3 2 55 SW1603 FANS 95 s 8 1 1 979 SW1604 Multi purpose m 4266 Lower cassette Cassette size tray fan S ca paper level J213 sensing switch PCB 5 sensor 2 J1204 LL 5 8 PS1205 NEU 1 Feed clutch EE g gil 24VGND 7 sialo 1 _ DUPCLK 6 5 5 J212 DUPCMD 5 4 Upper cassette E DUPSTS 4 3 amp petita 9 j 9 133V DUPIDS 3 sensor J13 ps2 2 5V 24 2 pee ripis PS1206 x 3 1 gt 2 3GND
117. ity Multi purpose tray paper size select 6 7 Upper and lower cassette paper size detection data Sensor status 2 72X 8 Cause of paper jam fan malfunction details Test print paper pick up delivery slot WX fan malfunction details 1 72X allocation pattern setting 9 Paper transport system electrical parts status Paper transport system electrical parts drive 1 Sensor status 3 72X 10 Motor status Paper transport system electrical parts drive 2 11 Paper transport system electrical parts drive 3 3 Connector Signal Chart Table 4 8 5 Connector 1 Signal name Function 24VA IN OUT GND 24VA Serial line input Serial line output GND 1 2 3 4 CHAPTER 4 Operation Method Preparation Switch OFF the printer Connect the tester connector 1 to the envelope feeder connector 024 in the printer Turn ON the printer When the printer is in standby mode start performing checks with the tester Connector 2 Figure 4 8 4 Note When operating the printer driver tester electrostatic energy can cause operation fail ures Therefore when connecting the tester be sure to touch a metal part of the print er with your hand to discharge any electrostatic energy CHAPTER 4 b Confirming Printer Status Select DISPLAY with the DISPLAY SET UP switch Check can be made with the LED display see table 4 8 7 For example when checking the contents of operator call service c
118. l RAM DIMM Video controller PCB GND GND nBD GND GND GND VCC 5V VCC 5V V VCC 5V VCC 5V VCC 5V VCC 5V VCC 3 3V VCC 3 3V VCC 3 3V VCC 3 3V VCC 3 3V VCC 3 3V nSPCHG nPFED nPDLV CPSEL nPRFD nCCRT nCMD nCBSY nCCLK nSTS nSBSY N C nVSYNC nCPRDY nPRNT nVSREQ nRDY nPPRDY N C N C nFP CK nFP CS nFP OD nFP ID GND GND nVDO GND GND VDO To DC controller PCB nWRO GND nRDO GND N C N C N C GND nIDE INT N C 2 4 nIDECS 5 nIDE LED GND VCC VCC GND nPS INT nHRESET nWRO nPSIOCS N C GND INJA 002 004 OD6 008 0010 0012 0014 GND OA2 4 OAS OA10 OA12 OA14 OD16 4 APPENDIX III LIST OF SIGNALS A Input output signals to from DC controller PCB Connector Pin Abbreviation I O Signal name J201 Al GND A2 GND A3 FPCS OPERATION PANEL CONTROLLER CHIP SELECT signal 4 5 VSREQ A6 VSYNC STS CMD CPSEL SPCHG
119. laser driver PCB and connector J202 on the DC controller PCB 3 The laser scanner unit is defective Action Replace the laser scanner unit 4 The DC controller PCB is defective Action Replace the DC controller PCB 6 12 1 ERROR MOTOR CALL FOR SERVICE Faulty main motor 12 2 ERROR MOTOR CALL FOR SERVICE Faulty main motor Possible causes 1 The main motor drive signal line connectors are loose Action Reconnect connector J12 of the main motor and connector J218 on the DC con troller PCB 2 The door switch on the switch sensor PCB is defective Action Remove connectors J205 and 4221 on the DC controller PCB If J205 3 24 and J221 1 424VB on the cable side not conduct when the door switch SW1401 is ON replace the switch sensor PCB 3 The main motor is defective Action Use the printer driver tester to rotate the main motor If it does not rotate replace it 4 The DC controller PCB is defective Action Replace the DC controller PCB VI 7 13 1 ERROR FAM 1 CALL FOR SERVICE Electrical unit fan FM3 failure Possible causes 1 The FM3 drive signal line connector is loose Action Reconnect connector J210 on the DC controller and connectors J12 J13 2 The electrical unit fan is defective Action Disconnect connector J210 on the DC controller PCB Turn the power switch ON and measure the voltage between connector J210 1 FAN3D and J210 3 GND on the DC controller
120. ler PCB generates 5VC and supplies it to the laser driver This is shown in the block diagram below 2 Protective Function The 24VDC 5VDC and 3 3VDC power supply circuits have an over current protective func tion and over voltage protective function which automatically interrupt output voltage to pro tect the circuits when a short circuit or other troubles on the load side result in over current flow or abnormal voltage If the over current over voltage protective functions are activated and no DC voltage is out put from the power supply circuits turn OFF the power switch rectify the trouble on the load and then turn ON the power switch again Wait at least for 2 minutes before turning the power switch ON again If over current flows through the AC line the circuit breaker in the power supply is turned OFF to cut off the output voltage CHAPTER 2 E Video Interface Control 1 Outline To connect the printer to an external device such as a host computer a video controller PCB interface PCB is needed This section explains the kinds of interface signals exchanged between the printer and the video controller PCB and gives information concerning the sequence of printer operation mak ing use of interface signals a Video interface signals Printer External device Video controller DC controller host computer etc PCB PCB EOS BD PPRDY RDY VSREQ LASER DRIVE SBSY signal VDO VDO
121. light ly remove the right and then the left side of the unit Delivery cover unit 2 Rods Figure 3 2 12 6 Multi purpose tray 1 Open the multi purpose tray 2 Unhook the 2 claws that hold the multi purpose tray to the printer and pull out the tray toward you 22 Claws 2 Multi purpose tray Figure 3 2 13 CHAPTER 3 1 2 3 4 Right cover unit Remove the upper and lower cassettes Remove the front cover Remove the right rear cover Remove the hinge and then the 4 screws from the right cover unit Right cover unit Hinge Screws 5 Figure 3 2 14 Unhook the 2 claws from the inside and then remove the right cover unit Claws Right cover unit Figure 3 2 15 Screws F Left rear cover Remove the rear cover Open the delivery cover unit Remove the 3 screws and then the left rear cover 2 Left rear cover Figure 3 2 16 Left lower cover Remove the upper and lower cassettes Remove the rear cover Remove the left rear cover Remove the delivery cover unit Remove the 2 screws Screws Figure 3 2 17 6 Unhook the 2 claws from the inside and then remove the left lower cover Claws 2 Left lower cover Figure 3 2 18 CHAPTER 3 B Control Panel Unit 1 Remove the front cover 2 Unhook the 2 claws Lifting the control panel unit disconnect the co
122. ller shaft fixing arm and the lift up release arm are driven to fix the lift up cam As a result the lift up arm is stopped and lift up operation is competed See Figure 2 5 11 CHAPTER 2 c Multi feed prevention mechanism When feeding from the cassette the printer uses the separation roller to prevent multi feeding Normally the separation roller is imparted with a rotational force opposite to that of the feed roller However since the separation roller is equipped with a torque limiter it rotates with feed roller 1 by transmission of its rotational force via the transported paper On the other hand if multiple sheets of paper are picked up the low friction force between the sheets of paper result in a weak rotational force being transmitted to the separation roller from feed roller 1 Consequently the separation roller s own rotational force separates the extra sheet Feed roller 1 Pick up roller Driving force transmitted from feed roller 1 eparation roller Print paper Driving force transmitted from the pick up motor through the torque limiter Normal Figure 2 5 13 CHAPTER 2 2 Manual feed multi purpose tray The presence of paper on the multi purpose tray is detected by the multi purpose tray paper sensor PS1301 When the DC controller receives the PRNT signal from the video controller the lifting plate solenoid SL2 turns ON the lifting plate is unlocked the lifting plate rises and the paper touch
123. ller PCB OPERATION CHECK This is the control panel diagnostic mode Factory Usage Only See section on diagnostics PAGES Displays under TEST when SHOW PAGE COUNT is selected is number of pages No action required PANEL CHECK Displays during a panel check function Proceed with the panel check function PANEL CHECK DONE Displays when panel check function is com plete Power cycle printer A 20 Prepared by PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT CANON INC Printed in Japan REVISION 0 JAN 1999 5 1 Hakusan 7 Toride City Ibaraki Pref 302 8501 Japan The printing paper contains 7096 waste paper Canon PRINTED IN JAPAN IMPRIME AU JAPON 0199AT0 70 CANON INC
124. low shows the light distribution of the heaters Surface temperature of the upper fixing roller Fixing main heater C Fixing sub heater The center of the upper roller Thermistor Fixing upper roller Figure 2 2 7 The surface temperature of the fixing roller is detected by the thermistor on the fixing roller As the surface temperature rises the resistance of TH1 decreases and the voltage of the FIXING ROLLER TEMPERATURE DETECTION signal FSRTH lowers The CPU 201 on the DC controller controls the FIXING MAIN HEATER DRIVE signal FSRD1 FIXING SUB HEATER DRIVE signal FSRD2 FIXING HEATER DRIVE ENABLE sig nal FSRDE and INVERTER CIRCUIT DRIVE signal SUPSLT based on the voltage of the FSRTH signal in order to bring the surface temperature of the fixing roller to the specified value This printer sets the TH L H signal to H when the fixing roller temperature is low during warm up and to L when the temperature is high during normal temperature control in order to improve the accuracy of the FSRTH signal detection Table 2 2 1 shows the fixing roller target temperature during wait standby and print peri ods When it receives a PRNT signal from the video controller the CPU starts the fixing heater print temperature control The target fixing temperature and print speed at that point is shown in Table 2 2 1 When you make duplex print or select ROUGH in PAPER TYPE MENU from the control panel
125. ment plate shift motor 15 5 ERROR STACKER CALL FOR SERVICE Malfunction of tray unit elevation motor 16 ERROR CALL FOR SERVICE Unknown Engine Error 16 1 ERROR STACKER Malfunction of shutter Refer to Chapter 4 troubleshoot ing of the stapler stacker service manual A 19 APPENDIX Message Meaning Action CALL FOR SERVICE 16 2 ERROR STACKER CALL FOR SERVICE Malfunction of swing guide 17 ERROR CALL FOR SERVICE Unknown Stacker Error 17 1 ERROR STACKER CALL FOR SERVICE Malfunction of paper full sensor 18 UPPER ERROR CALL FOR SERVICE Malfunction of UPPER tray 18 1 ERROR DECK CALL FOR SERVICE Malfunction of 2 000 sheet deck or 2x500 sheet deck delivery motor 18 2 ERROR DECK CALL FOR SERVICE Malfunction of 2 000 sheet deck or 2x500 sheet deck lifter Refer to Chapter 4 troubleshoot ing of the 2 000 sheet deck or 2x500 sheet deck service manual 19 1 ERROR SORTER CALL FOR SERVICE Malfunction of face down deflector solenoid 1 19 2 ERROR SORTER CALL FOR SERVICE Malfunction of face down deflector solenoid 2 Refer to Chapter 4 troubleshoot ing of the soter service manual 32 DISK ERROR Hard drive failure Write error Replace the hard disk 33 DISK ERROR Hard drive failure Read failure Replace the hard disk SRAM ERROR CALL SERVICE The AIR Chip has failed Replace the video contro
126. move the high voltage power supply unit following steps 1 3 on Page 3 47 Undo the connector remove the 4 screws and then the main motor Q Screws Figure 3 7 2 1 2 3 Connector Pick up Motor Remove the pick up unit following steps 1 7 on Page 3 9 Undo the connector Remove the 2 screws and slide the pick up motor out in the direction of the arrow G Pick up motor Figure 3 7 3 CHAPTER 3 D Fans 2 Fixing unit scanner unit fan 1 Summary 1 Remove the right rear and rear covers There are 4 fan motors installed to circu 2 Remove the upper cover unit late air within the printer and prevent 3 Disconnect the connector the internal temperature from rising Fixing unit scanner unit fan Blows air from the fixing unit and the scanner unit vicinity e Power supply fan FM2 Blows air from the power supply e Electrical unit fan FM3 Intake fan for the video controller unit Fixing unit fan Blows air from the fixing unit vicinity Multi purpose tray pick up unit fan 5 Blows to the cartridge bas laser scanner unit vicinity Connector Figure 3 7 5 4 Disconnect the connector Connector Figure 3 7 4 Figure 3 7 6 CHAPTER 3 5 Remove the cable from the guide 6 Unhook the claw then remove the fan duct Cable 2 Cable guide Claw Fan duct Figure 3 7 7 Remove the 2 screws and then the fix ing uni
127. mputer in this printer But as the internal operation of the microcom puter cannot be checked an explanation of the operation of the microcomputer has been left out As it is assumed that no repair will be made to customer circuit boards the explanation of board circuits is limited to an outline using block diagrams So there are two types of cir cuit explanations 1 everything from the sensor to the input sections of the major circuit boards 2 everything from the output sections of the major circuit boards to the loads These are explained with block diagrams according to the function BASIC OPERATION 2 1 IV IMAGE FORMATION SYSTEM 2 32 ENGINE CONTROL SYSTEM 2 4 V PICK UP FEED SYSTEM 2 42 LASER SCANNER SYSTEM 2 26 VI OVERALL CONTROL SYSTEM 2 61 BASIC OPERATION A Functions Printer functions can be divided into four groups the engine control system the laser scanner unit the image formation system the paper pick up feed system To external device host computer etc OVERALL CONTROL SYSTEM Video controller PCB Face down tray S lu idi IMAGE FORMATION SYSTEM Cleaning unit ensitive drum Transfer charging roller Figure 2 1 1 CHAPTER 2 High voltage power supply Low voltage power supply
128. n Replace the roller The high voltage power supply PCB is defective Action Replace the high voltage power supply PCB The DC controller PCB is defective Action Replace the DC controller PCB CHAPTER 4 2 Dark Possible causes The image density is not adjusted correctly Action Adjust the image density by operating the external device The drum grounding contact of the high voltage power supply is not making a good connec tion with the cartridge contact Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them The primary bias contact of the high voltage power supply is not making a good connection with the cartridge contact Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them The high voltage power supply PCB is defective Action Replace the high voltage power supply PCB The DC controller PCB is defective Action Replace the DC controller PCB II 3 Completely blank Possible causes 1 The projection for opening and closing the laser shutter the EP 72 cartridge is damaged Action Replace the cartridge The laser shutter arm or laser shutter is malfunctioning or damaged Action If the laser shutter arm or laser shutter does not move smoothly or parts are dam aged replace them The developing bias contact of the high
129. n Page 3 22 3 Remove the cleaning roller Cleaning roller Figure 3 4 25 CHAPTER 3 V SWITCHES SENSORS A Locations 11 13 15 17 19 21 Thermoswitch 2 Door switch Upper cassette paper size sensing switch 4 Lower cassette paper size sensing switch Thermistor 6 Registration paper sensor Pick up unit paper sensor 8 Pick up unit door sensor Lower cassette sensor 10 Upper cassette sensor Lower cassette paper level sensor 1 12 Lower cassette paper level sensor 2 Upper cassette paper level sensor 1 14 Upper cassette paper level sensor 2 Lower cassette paper out sensor 16 Upper cassette paper out sensor Multi purpose tray paper sensor 18 Lifting plate position sensor Face down tray paper full sensor 20 Face down tray delivery sensor Fixing unit delivery sensor Figure 3 5 1 B Thermoswitch 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Remove the wire cover 3 Remove the 2 screws and then the lead wire and the thermoswitch Screws Thermoswitch Figure 3 5 2 CHAPTER 3 C Door Switch 1 Remove the switch sensor PCB follow ing steps 1 10 on Page 3 45 CHAPTER 3 D Upper Cassette Paper size Sensing Switch Lower Cassette Paper size Sensing Switch 1 Remove the cassette paper size sensing PCB following steps 1 4 on Page 3 47 E Thermistor 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Remove
130. n site B Tools used on site or in regions These tools include tools used for failure analysis and tools which are difficult to carry around C Tools used in the workshop These tools include the tools used for PCB and unit repairs CHAPTER 4 G Special Tools printer driver tester Explanation Figure 4 8 2 1 Outline The tester runs the printer independently to test operation of printer and options duplexing unit and envelope feeder It has three uses which are outlined below a Commands the printer to print out solid black horizontal lines vertical lines and solid blank images It can also select the pick up and delivery trays and simplex and duplex print Monitors the status of the sensors and forcibly operates the various solenoids and motors c In the event of a printer failure the error information sent from the printer to the video con troller external device can be displayed on the tester LED Note This manual covers the basic operation of the printer driver tester For more defailed explanation please refer to the operation manual attached to the tester CHAPTER 4 2 Operation Panel PRINTER DRIVER 1 DC24V bit16 15 biti4 bit13 bit12 bitii bit10 bit9 bit8 bit7 bit6 bit5 bit4 bit2 biti TEST E DATA SET ENTER PRINT MODE SEL
131. n the printer only with PCL Press ON LINE to take the printer off line Press Form Feed to print the remaining data Reset key 6 Accesses the RESET menu so you can select RESET PRINTER or RESET MENU If you choose RESET PRINTER all resources in the memory soft fonts macros stored page data and so on are erased but the menu items selected are unaffected If you choose RESET MENU the facto ry default values are restored for most menu items Disk indicator 7 On disk is being accessed for fonts etc Off disk is not being accessed Staple indicator 8 On Stapling has been selected for the current print job Off Stapling has not been selected Enter key 9 Saves a value you selected for an item in the menu An asterisk marks the the current default setting Shift key 10 Press Shift and another key to access the alternate function of dual function keys The two func tions on dual function keys are separated by a slash in the key name on the printer control panel Plus Minus key 11 With an item name displayed press to Plus Minus step through the item s values Press and hold down Shift then press Plus Minus to step through the values in reverse order Some item have a large range of numbers from which to choose a value For example for COPIES you can 1 22 CHAPTER 1 set a value from 1 to 999 In this case to rapidly step through the values press and hold down Plus Minus Form Feed
132. nd T2 vary according to the paper size If no paper size is specified by the paper size specification command from the video controller during manual feed the print er does not recognize the paper width So the T1 and T2 values are assumed to be UNIVERSAL size 297 0mm x 635 0mm the maximum paper width for this printer 3 The CPU determines the actual size of the paper being fed by detecting the time from the leading edge of the paper passes through the registration paper sensor PS1 until its trailing edge clears the sensor The image is then masked according to the detect ed paper size CHAPTER 2 C Scanning System Figure below shows the scanner motor control circuit DC controller PCB 45V 24 Scanner motor J18 J207 7 HA 45V L 1 F 27 19 SCNRDY 6 6 gt M1 45V 3 SCND 5 5 P SCNCLK 3 3 i 4 GND 4 4 6 24VGND 2 2 21 Figure 2 3 4 The scanner motor is three phase eight pole DC brushless motor with HALL element It forms a unit with the scanner driver which controls the scanner motor rotation at a constant speed When the printer is turned ON the oscillation frequency of the crystal oscillator X202 is divided by the gate array IC202 and the SCNCLK signal is sent to the scanner driver When the PRNT signal sent to the CPU 201 on the DC controller becomes L the CPU sets the SCND signal to
133. nd registration guide with soft flannel cloth Transfer chargin roller Registration guide metal part Transfer guide metal part Figure 1 6 1 3 Static charge eliminator When replacing the cartridge clean the static charge eliminator with the cleaning brush attached inside the printer Transfer charging roller Static charge eliminator Figure 1 6 2 4 CHAPTER 1 Fixing unit When replacing the cartridge clean the fixing unit following the procedure below 1 2 3 4 5 6 7 8 9 Open the multi purpose tray and load one sheet of A4 or Letter size paper into the tray Press the On Line key to take the printer off line Press the Menu key to select PCL MENU Press the Item key to select PAGESIZE Press the Plus Minus key to select either A4 or Letter and then press the Enter key Press the Menu key to select FEEDER MENU Press the Item key to select MPTSIZE Press the Plus Minus key to select either A4 or Letter and then press the Enter key Press the Menu key to select TEST MENU 10 Press the Item key to select CLEANING PAGE and then press the Enter key LOAD PLAIN A4 or LETTER IN MANUAL will appear in the display and the Continue LED and Form Feed LED will light up 11 Press the Continue key to print the Cleaning Page LOAD BLANK SIDE UP IN MANUAL will appear and the Continue LED will light up Load this sheet this side do
134. nding a test print pick up delivery tray allocation or pattern set ting operation follow the steps below by operating the the tester when you want to have paper picked up from the multi purpose tray duplex print a horizontal line test print pattern and deliver it through the face up tray 1 2 3 4 5 When the printer has entered standby mode set the DISPLAY SET UP switch on the tester to SET UP Set the MODE SELECT to 8 Set DATA SET switch bit 8 to O bit 7 to 1 bit 6 to O bit 5 to O bit 4 to 1 bit 3 to 1 bit2 to O and bit 1 to 1 see Table 4 8 7 Press the ENTER switch By turning the TEST PRINT switch ON once a test print can be made PRINTER DRIVER r DATA 1 bit16 bit15 bit14 bit13 bit12 bit bit10 bit9 bit8 bit7 bit6 bit5 bit4 bits bit2 bit1 oo0oo0oo0o000000000000 TEST r DATA SET ENTER PRINT MODE SELECT at 8 7 6 bt 5 Bn 4 3 bi 2 ot 1 5 6 7 G60060000 OFF SET UP RY9 0104 MADE IN N JAPAN Horizontal lines image pattern setting Duplex print setting gt Face up tray delivery allocation gt Multi purpose tray pick up allocation Figure 4 8 6 Notes 1 After setting a test print in this mode the data will remain the same even if the test print is set in another mode 2 By keeping the TEST PRINT switch continuous test prints will be made 3 When setting the image pattern t
135. nnector from the inside Claws 2 Control panel unit Figure 3 2 19 CHAPTER 3 III MAIN UNITS A Laser Scanner Unit 1 Remove the upper cover unit 2 Disconnect the 3 connectors from the laser scanner unit Connectors Figure 3 3 1 3 Remove the 4 screws and the laser scanner unit Screws Laser scanner unit Figure 3 3 2 Note Do not disassemble the laser scan ner unit as it cannot be adjusted in the field B Drive Unit 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Remove the screw and then the cas sette stay Screw 2 Cassette stay Figure 3 3 3 3 Disconnect the claw and then the clutch cover Claw Clutch cover Figure 3 3 4 4 5 Screws Remove the high voltage power supply unit following steps 1 3 on Page 3 47 Undo the connector remove the 4 screws and then the main motor Remove the 2 screws and the drive unit Drive unit Figure 3 3 5 1 2 3 4 Connector CHAPTER 3 Pick up Unit Pull out the upper and lower cassettes Perform steps 1 6 on Page 3 12 to remove the multi purpose tray pick up unit Remove the right cover Undo the connector and remove the cable from the cable guide Q Cable G Cable guide 5 6 7 Figure 3 3 6 Perform steps 1 2 on Page 3 17 to remove the pick up feed and separation rollers Remove the screw M3x10 Remove the 3 screws M3x8 an
136. nsfer Constant Current Control Circuit 705 Transfer Positive Voltage Sfor Fositive gt Transformer Drive Circuit bos To transfer charging roller qi RFVSNS Transfer Positive Voltage Sense Circuit TRENVD T706 HRLBD Upper Fixing Roller Upper Fixing Upper Fixing Roller HRLB TB705 Voltage Transformer Roller Voltage Voltage generation gt T fixi Drive Circuit Transformer Circuit 5 10 Upper ing roller IDCHGBD Discharge Voltage Discharge Discharge TB706 Transformer Drive Voltage Voltage DCHGUP Circuit Transformer Generator Circuit To static charge eliminator a t 24V 24 421 5V GND Reference Voltage GND Power Supply GND TB704 Figure 2 2 10 CHAPTER 2 1 Outline In response to the instruction from the microprocessor CPU on the DC controller PCB the high voltage power supply applies a voltage to the primary charging roller developing cylinder transfer charging roller static charge eliminator and upper fixing roller It applies a voltage of DC voltage and AC voltage to the primary charging roller and developing cylinder applies a pos itive or negative DC voltage to the transfer charging roller and a negative DC voltage to the sta tic charge eliminator and the upper fixing roller 2 Principle of operation a Primary charging roller voltage generation When the PRNT s
137. nsor Face down tray paper full sensor Face down tray delivery sensor Fixing unit delivery sensor Cassette paper size sensing switch Cassette paper size sensing switch Cassette paper size sensing switch Cassette paper size sensing switch CHAPTER 2 Switch sensor jo I Face up Fixing unit m delivery roller delivery Transfer roller Lower charging fixing roller roller Pick up roller Face down DC controller PCB oO delivery roller E Flapper Upper Photosensitive Re fixing drum roller gistration pick up roller Feed roller 1 Upper cassette Lower cassette Separation roller FACE UP SOLENOID DRIVE signal FUSLD REGISTRATION CLUTCH DRIVE signal REGCLD MAIN MOTOR DRIVE signal MMRDY PICK UP MOTOR DRIVE signal FEED CLUTCH DRIVE signal FEEDCLD CASSETTE PICK UP SOLENOID DRIVE signal PUPSLD MANUAL FEED CLUTCH DRIVE signal IMPTCLD LIFTING PLATE SOLENOID DRIVE signal IMPTSLD Figure 2 5 2 MT1 Main motor SMT1 Cassette pick up motor SL1 Cassette pick up solenoid SL2 Lifting plate solenoid SL3 Face up solenoid CL1 Registration clutch CL2 Feed clutch CL3 Manual feed clutch Multi purpose tray PCB Manual feeding A WV CHAPTER 2 B Paper Pick up 1 Pick up operation This
138. nt ae ES Screws Screws Connector Fan duct Figure 3 8 11 6 Remove the 3 screws and the shield cover Screws Q Shield cover Figure 3 8 12 CHAPTER 3 7 Remove the 5 screws and the shield plate O mm 5 m 4 5 9 542 pe I AMARAS Screws Figure 3 8 13 8 Remove the DC controller PCB following steps 1 4 on Page 3 43 9 Remove the 3 screws 10 Remove the claw and take out the DC controller mounting plate Screws 2 Claw G DC controller mounting plate Figure 3 8 14 11 Disconnect the connector remove the 2 screws and pul out the board Disconnect the other connector and remove the switch sensor PCB Connectors Screws Switch PCB Figure 3 8 15 G High voltage Power Supply Unit 1 Remove the right rear and rear covers 2 Disconnect the 2 connectors 3 Remove the screw M4 the 2 screws M3 and then the high voltage power supply unit Connectors Screws MA Screws High voltage power supply unit Figure 3 8 16 CHAPTER 3 H Cassette Paper size Sensing PCB 1 Remove the cassettes 2 Remove the power supply following steps 1 7 on Page 3 48 3 Disconnect the connector remove the screw then take out the cassette paper size sensing cover Connector Screw Cassette paper size sensing cover Figure 3 8 17 4 Disconnect the c
139. o All black do not make duplex prints CHAPTER 4 Mode select 8 Table 4 8 7 Display content details 16 Initial residual jam o Sm c 2 Electrical unit fan malfunction 1 Fixing unit fan malfunction SET UP Pick up slot Delivery slot Image pattern bit 8 bit 7 bit 6 bit 5 bit 4 bit 2 bit 1 0 0 0 Lower cassette pick up Upper cassette pick up Multi purpose tray pick up 0 0 0 0 1 1 0 1 1 Envelope feeder pick up Face down tray delivery Face up tray delivery Single side print Duplex print Vertical lines Horizontal lines All white All black Table 4 8 8 Mode select 3 bit Display Content Details Set Up Content Details Lights when the upper cassette pick up function is ready in the printer Lights when there are envelopes loaded in the envelope feeder Lights when paper is present at the re feed position duo RDYINH set Note 1 Forced laser emission WX only Service mode 1 start 0 stop 72X only Display panel light up test WX only Sleep mode 1 deep mode 0 nap mode Sleep set Note 2 Note 3 Notes 1 When performing the ready inhibit setting set MODE SELECT to 3 and turn ON the printer while pressing the ENTER switch 2 Deep mode halts all drives stop 24V supply Nap mode halts all
140. ol Panel 2 65 Self 2 66 MAIN PARTS 3 15 A Locations 3 15 B Multi purpose Tray Pick up Roller 3 16 C Separation Pad 3 16 D Pick up Feed Separation Rollers 3 17 E Registration Lower Roller 3 17 F Transfer Charging Roller 3 18 Fixing Roller Heater 3 18 H Fixing Upper Roller 3 19 I Fixing Lower Roller 3 22 J Cleaning 3 23 SWITCHES SENSORS 3 24 II III A Locations 3 24 B Thermoswitch 3 25 C Door Switch 3 25 D Upper Cassette Paper size Sensing Switch Lower Cassette Paper size Sensing Switch 3 26 Thermistor 3 26 Registration Paper Sensor 3 27 Pick up Unit Paper Sensor 3 28 Pick up Unit Door Sensor 3 28 Lower Cassette Sensor motu Upper Cassette Sensor Lower Cassette Paper level Sensor 1 Lower Cassette Paper level Sensor 2 Upper Cassette Paper level Sensor 1 Upper Cassette Paper level Sensor 2 Lower Cassette Paper out Sensor Upper Cassette Paper out Sensor 3 29 J Multi purpose Tray Paper Sensor Lifting Plate Position Sensor 3 29 K Face down Tray Paper Full Sensor Face down Tray Delivery Sensor Fixing Unit Delivery
141. on roller primary AC transfer negative bias ON af Has fixing temperature reached 170 C Main motor scanner motor pick up roller registration roller primary AC transfer negative bias ON Standby Figure 2 1 2 CHAPTER 2 II ENGINE CONTROL SYSTEM A DC Controller Circuit 1 Outline Operation sequences of the printer are controlled by the CPU of this circuit When DC power is supplied from the power supply by turning ON the power switch of the printer and the printer enters the standby mode the CPU outputs the signals that drive the loads such as laser diode motors and solenoids based on the print start command and image data 2 Explanation of operations of each block a CPU IC201 An 8 bit single chip microcomputer UPD78056 by NEC is used The CPU is a one chip type in which ROM and RAM are built in and controls the operation of the engine according to the control program stored in the ROM b Gate array IC202 Its functions are to 1 control the laser scanner 2 control the video interface 3 communicate with the envelope feeder 4 communicate with the printer driver tester and 5 operate as the expansion I O DC controller Serial line Si Envelope feeder IC 202 Gate array i M Serial line Serial line Figure 2 2 1 3 DC Controller Input Output Signals CHAPTER 2 DC controller PCB
142. on for printing and to clean the transfer charging roller PRINT Print From the end of the INTR period until the primary DC voltage switches OFF To form an image on the photosensitive drum according to the VDO and VDO signals input from the video controller and to transfer the image to paper During this period the printer maintains the printing temperature of the fixing rollers LSTR LAST ROTATIONS period After the primary DC voltage turns OFF until the main motor stops To deliver the final page and to clean the transfer charging roller If a PRNT signal is input from the video controller the INITIAL ROTATIONS period begins immediately CHAPTER 2 C Power On Sequences Sequences of the printer from power ON until it enters the standby mode are as shown below CPU initialization PPRDY signal output Fixing heater ON Duplexing unit NO connection Duplexing unit initialization re Main motor scanner motor pick up roller registration roller primary AC transfer negative bias ON Development AC bias ON Checks if the cartridge is installed and if there is toner in it During this period checks if there is residual paper in the printer If automatic paper delivery is required as a result of the check residual paper is delivered automatically Has fixing temperature reached 145 C Main motor scanner motor pick up roller registrati
143. on the photosensitive drum is changed to a visible image by the toner on the developing cylinder then transferred onto paper by the transfer charging roller Residual toner on the photosensitive drum surface is scraped off by the cleaning blade The potential on the drum is made uniform by the primary charging roller in preparation for the next latent image The cartridge has a toner sensor that detects whether there is enough toner remaining and whether the cartridge is installed If the toner in the cartridge becomes lower than the prescribed level or there is no cartridge installed in the printer the high voltage power supply notifies the DC controller through the TONER LEVEL signal CHAPTER 2 Laser beam Primary charging roller 4 Developing cylinder Cleaning blade 2 Manual feeding pick up roller Upper fixing roller SS o Photo charging sensitive roller drum Static charge Lower fixing roller eliminator Upper pick up roller Lower cassette pick up roller Transfer bias drive signal TRFVCNT Transfer negative bias drive signal TRFNVD Transfer bias monitor signal TRFVSNS Fixing roller bias drive signal Transfer bias constant current drive signal TRFCCD Discharge bias drive signal DCHGBD PRNT Transfer bias frequency output signal High icd Tn ET High voltage bias frequency output
144. only when the printer is operating This printer meets the ozone emission reference value set by Underwriters Laboratory UL at the time it is shipped from the factory D Power Supply Unit Safety Care is needed as even though the printer switch may be OFF there is a possibility that a cur rent may still flow on the primary side Be sure to remove the power plug before disassembly and assembly of this printer IV PARTS OF THE PRINTER A External Views Figure 1 4 3 e e eee OMANDOURWNY OC CHAPTER 1 Operation panel unit Face down tray Upper cover Delivery stopper Test print switch Multi purpose tray Duplex unit door Upper cassette Lower cassette Power switch Delivery cover Face up tray Parallel interface connector Power receptacle Option interface connector option Expansion board slot Cleaning brush EP 72 cartridge Pick up unit door CHAPTER 1 B Cross sectional Views ON AIP Face up tray Face up delivery roller Face down delivery roller Upper fixing roller Laser scanner unit Primary charging roller Photosensitive drum Developing cylinder EP 72 cartridge Registration roller Multi purpose tray pick up roller Separation pad Figure 1 4 4 13 Multi purpose tray 14 Feed roller 1 15 Feed roller 2 16 Separation roller 17
145. onnector and remove the 3 screws from each PCB then take out the cassette size sensing PCBs Connectors Screws Upper cassette paper size sensing Lower cassette paper size sensing Figure 3 8 18 CHAPTER 3 I Power Supply 1 Remove the left rear and rear covers 2 Disconnect the connector remove the 2 screws then take out the fan duct Connectors Connector Screws Figure 3 8 21 Fan duct 6 Remove the 2 screws and the power Figure 3 8 19 supply unit fan 7 Remove the 2 screws and take off the power supply unit 3 Remove the connector N 4 Take out the 5 screws Screws Power supply fan Screws Power supply Connector Screws Figure 3 8 22 Figure 3 8 20 CHAPTER 4 TROUBLESHOOTING PREFACE 4 1 VI MALFUNCTION STATUS IMAGE DEFECTS 4 8 TROUBLESHOOTING 4 21 PAPER JAMS VII MEASUREMENT AND TROUBLESHOOTING 4 14 ADJUSTMENT 4 28 PAPER TRANSPORT VIII MAINTENANCE AND TROUBLESHOOTING 4 18 4 35 MALFUNCTION IX LOCATION OF CONNECTORS 4 48 TROUBLESHOOTING 4 20 CHAPTER 4 I PREFACE A Malfunction Diagnosis Flowchart The malfunctions that occur in the printer fall into five main factors image defects paper jams paper tr
146. ots on the paper e 16 Dirt on Back of Paper Output dirt on the back of the paper e I 7 Vertical Lines Output vertical lines on the paper e I 8 Black Horizontal Lines Output horizontal lines on the paper e 19 Dirt Output dirt on surface of the paper e 10 Blank Spots Output image with blank spots e 1 11 White Vertical Lines Output white vertical lines on the paper 1 12 White Horizontal Lines Output white horizontal lines on the paper 13 Poor Fixing Output the image with poorly fixed toner e 114 Image Distortion Output distorted image II 1 Light Possible causes 1 image density is not adjusted correctly Action Adjust the image density by operating the external device Open the upper cover and remove the EP 72 cartridge while a print is being made Open the drum protective shield of the EP 72 cartridge and check the toner image on the photosensi tive drum If the toner image has not been transferred to the paper properly go to step 3 If the toner image on the drum is faint go to step 6 Do not open the drum protective shield for more than 10 seconds The transfer charging roller contact of the high voltage power supply is not making a good connection with the contact of the transfer charging roller shaft Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them The transfer charging roller is deformed or has deteriorated Actio
147. ove the separation pad T Separation pad Figure 3 4 4 D Pick up Feed Separation Rollers 1 Pull out the upper and lower cassettes 2 Grasp the knobs of each roller and pull the rollers out of the printer ee Pick up roller Feed roller Separation roller Figure 3 4 5 Pick up roller Feed roller Separation roller Figure 3 4 6 Note Be sure to replace the feed roller and the separation roller together CHAPTER 3 E Registration Lower Roller 1 Remove the registration roller unit fol lowing steps 1 5 on Page 3 12 2 Remove the registration clutch 3 Remove the spring the E ring and the bushing Spring E ring Bushing Figure 3 4 7 4 Remove the gear the spring the E ring the bushing and then the registration lower roller Gear Spring E ring Bushing Registration lower roller Figure 3 4 8 CHAPTER 3 F Transfer Charging Roller 1 Open the upper cover 2 Open the transfer charging roller guide 3 Pinch the gear lift it slightly and slide it to the left Remove the transfer charging roller Transfer charging roller guide Gear Transfer charging roller Figure 3 4 9 Notes for reassembly Hold the shaft and bushing not the sponge area of the transfer charging roller when installing the roller G Fixing Roller Heater 1
148. ower cassette paper level sensor 1 1203 and the lower cassette paper level sensor 2 PS1204 Figure 2 5 6 shows the combinations of PS1205 PS1203 and PS1206 PS1204 CHAPTER 2 Pick up unit Pick up PCB Remaining Remaining number paper level of sheets note Almost full 430 sheetes or more High 200 490 sheetes Low 50 260 sheetes Almost empty 110 sheetes or less Note Plain paper 75g m recommended paper PS1204 or PS1206 PS1203 or PS1205 gans Light blocking plate Lifter PF H Figure 2 5 6 CHAPTER 2 b Lift up operation The lift up operation is executed by the multi input tray drive motor when a cassette is installed or the pick up roller shaft is set lower than certain level due to the paper reduce The two cases for the lift up operation are as follows Paper lifting plate Pick up roller Cassette pick up cam Main motor drive Shaft drive arm Feed roller 1 Separation roller Pick up motor drive Feed roller gear Pick up roller shaft fixing arm Figure 2 5 7 CHAPTER 2 1 Cassette is installed When cassette is installed the multi input tray drive motor rotates the cassette paper pick up solenoid SL3 is turned ON Then the shaft drive arm is driven by the cassette paper pick up cam rotation through the gear Cassette pick up cam
149. paper H when the sensor detects paper H when the sensor detects paper H when either the upper or delivery cover is open Detects no cartridge installed and toner out Detects the lower cassette paper size Detects the upper cassette paper size CHAPTER 2 DC controller PCB i J202 4 d P Analog signal in proportion to the laser DRVES intensity is input m 0 LENBL L to switch the laser ON according to the VDO and 1 NDO signals 7 L to turn the laser ON compulsively YOO VDO The laser is turned ON only when the LENBL VDO 5 8 and VDO L and L respectively LOW 77 VOLTAGE DIFFERENTIAL signal J206 1 2 Bp pcs 3 BD input signal pulse i 45V 1 4 A 24VA i a a om fy 7 7 1 1 5 6 6 6 2 Scanner 5 5 3 SCNRDY E when the scanner motor reaches the motor 3 3 5 SCND prescribed speed SCNCLK L to drive the scanner motor 2 4 1 2k4 2 4 4 6 Scanner motor reference clock signal 4701 J220 A12 B12 A12 B12 prot TRFVONT Transfer bias drive signal es E TRFNVD Transfer negative bias drive signal E TRFVSNS Transfer bias monitor signal P HRLBD Fixing roller bias drive signal
150. printer conducts paper pick up operation by lifting the paper to the paper pick up position with the lifter and lowering the rotating cassette pick up roller to the paper level Paper pick up operation is conducted only when the multi input tray driver receives the pick up command from the option controller The pick up roller is lowered to the paper level by the rotational force of the main motor At the same time the pick up roller is rotated by the rotational force of the pick up motor Paper pick up operation is conducted as follows On receiving the PRNT from the video controller PCB the DC controller PCB runs the main motor and the pick up motor 5 When the cassette pick up solenoid SL1 is turned ON the main motor rotates the cassette pick up cam via the gear to drive the shaft drive arm At the same time the rotational force of the pick up motor is transmitted to the cassette pick up roller via the feed roller gear As a result the rotating cassette pick up roller goes down to the paper level picks up a sheet of paper goes up to the paper pick up standby position and stops rotation When the pick up motor rotates clockwise the paper is picked up from the upper cassette by rotating the cassette pick up roller feed roller 1 and separation roller of the upper cassette When the pick up motor rotates counterclockwise the paper is picked up from the lower cas sette by driving the cassette pick up roller feed
151. r power OFF wait for a while to allow the fixing unit to cool down H Feed Unit 1 Remove the registration roller unit fol lowing steps 1 5 on Page 3 12 2 Remove the transfer charging roller 3 Remove the fixing unit following steps 1 2 on Page 3 13 4 Remove the high voltage power supply unit following steps 1 2 on Page 3 47 5 Remove the screw mri A IH ma SUP Pett Screw Figure 3 3 17 6 Disconnect the connector 7 Remove the 2 screws 8 Remove the 4 claws and then the feed unit Connector 2 Screws Claws amp Feed unit Figure 3 3 18 CHAPTER 3 IV MAIN PARTS A Locations Multi purpose tray pick up roller Separation pad G Pick up Feed Separation rollers Registration lower roller Transfer charging roller Fixing roller heater Fixing upper roller Fixing lower roller G Cleaning roller Figure 3 4 1 CHAPTER 3 B Multi purpose Tray Pick up Roller 1 Open the multi purpose tray 2 Remove the cover Figure 3 4 2 3 While pressing the lifting plate grasp the multi purpose tray pick up roller knob and pull out the roller Lifting plate Multi purpose tray pick up roller Figure 3 4 3 C Separation Pad 1 Open the multi purpose tray 2 Remove the cover 3 Remove the multi purpose tray pick up roller 4 Use a flat bladed screwdriver to rem
152. ration roller and feed roller Clean with lint free paper either dry or moistened with ethyl isopropyl alcohol 3 Separation pad Clean with lint free paper 4 Registration roller unit Clean with lint free paper If badly contaminated use it with ethyl isopropyl alcohol for rubber parts and MEK methyl ethyl ketone for other parts Avoid skew or paper jams caused by removal of the springs 5 Transfer guide unit Clean with soft dry flannel cloth 6 Static charge eliminator Clean with brush 7 Feed guide unit Clean with lint free paper 8 Fixing unit e Fixing entry guide Clean with lint free paper moistened with MEK Fixing separation guide Clean lightly with lint free paper moistened with MEK only to remove the toner deposit e Fixing separation claw Clean lightly with lint free paper moistened with MEK only to remove the toner deposit Replace if badly worn CHAPTER 4 Figure 4 8 1 1 Fixing separation guide 7 Registration roller unit 2 Fixing separation claw 8 Separation pad 3 Fixing entry guide 9 Multi purpose tray pick up roller 4 Feed guide 10 Feed roller 5 Transfer charging roller 11 Separation roller 6 Transfer guide 12 Pick up roller CHAPTER 4 E Standard Tools standard tools required for servicing the printer are listed below Table 4 8 2 Tool name Tool No Remarks Tool case TKN 0001 Jumper wire TKN 0069 With clips Thickness
153. re 3 2 3 CHAPTER 3 5 Open the delivery cover unit and unhook the claw MLB 2 a Delivery cover unit 2 Claw Figure 3 2 4 6 Open the pick up unit door unhook the claw and then remove the front cover 11 M AWN a SS NY za 2 2 2 2 2 2 2 2 2 2 2 Pick up unit door Claw Front cover Figure 3 2 5 CHAPTER 3 3 Upper cover unit 1 Remove the face down tray 2 Remove the 2 screws ee ee ep gt m 2222 SS Screws Figure 3 2 6 3 Open the delivery cover unit and then remove the 2 screws Screws Figure 3 2 7 4 Pulling the knob toward you lift the upper cover unit and disconnect the connector from the inside 2 27 Knob 2 Upper cover unit Figure 3 2 8 5 Unhook the 2 claws and then remove the control panel unit Tim Claws 2 Control panel unit Figure 3 2 9 4 Rear cover 1 Open the upper cover 2 Open the pick up unit door 3 Remove the 2 screws unhook the claw and then remove the right rear cover Screws Right rear cover Figure 3 2 10 4 Remove the 6 screws and then the rear cover Rear cover Figure 3 2 11 CHAPTER 3 5 Delivery cover unit 1 Open the delivery cover unit 2 Remove the 2 rods that hold the delivery cover unit to the printer 3 Lifting up the delivery cover unit s
154. ress the Continue key to create the other side of the cleaning page LOAD CLEANING PAGE IN MANUAL This message displays right after a cleaning page has been created Load the cleaning page face down in the multi purpose tray Press the CONTINUE READY key to start cleaning LOAD STAPLES Staples low Only the current job will be sta pled Load staples The printer will resume to READY The printer is now ready to staple UPPER TRAY IN MOTION The upper cassette is repositioning the stack after new paper was loaded No Action Required LOWER TRAY IN MOTION The lower cassette is repositioning the stack after new paper was loaded No Action Required DECK TRAY IN MOTION The paper tray in the 2 000 sheet deck is repo sitioning the stack after new paper was loaded No Action Required DECK1 TRAY IN MOTION The upper cassette in the 2x500 sheet deck is repositioning the stack after new paper was loaded No Action Required DECK2 TRAY IN MOTION The lower cassette in the 2x500 sheet deck is repositioning the stack after new paper was loaded No Action Required UPPER MISSING The specified upper cassette is missing Reinsert the upper cassette LOWER MISSING The specified lower cassette is missing Reinsert the lower cassette DECK MISSING The specified deck 2 000 sheet deck is miss ing Reinsert the deck MISSING
155. rint tray capacity Face down Face up Desktop page printer console type when paper deck is installed Electrophotography About 32 pages min A4 Letter about 18 pages min A3 12 9 sec or less A4 14 3 sec or less A3 90 sec or less 600 DPI 600 DPI Semiconductor laser Rotating six faced prism mirror Scanning mirror OPC Roller charging Laser scanning Magnetic single component dry toner Toner projection development By EP 72 cartridge replacement about 20 000 A4 or Letter sized prints with DENSITY in CONFIG MENU set to 7 and 4 dot density Roller transfer Curvature discharge bias Blade Heated rollers 600W 450W Multi purpose tray Cassette Envelope feeder EF 9 option 2 000 Sheet paper deck PD 82 option 2x500 Sheet paper deck PD 82K option Plain paper colored paper labels OHT envelopes rough paper bond paper tarnsparency paper recycled paper letterhead Min 98 4mm W x 190 5mm L to max 297mm W x 432mm L sized plain paper 64g m to 128g m recommended paper paper mentioned above A4 Legal Letter sized plain paper 64g m to 105g m rec ommended paper and colored paper B4 4 Ledger Legal Letter sized plain paper 645 1 to 105g nY recommended paper and colored paper 10mm stack about 100 sheets of 75g m paper 50mm stack about 500 sheets of 75g m paper Universal accommodates B4 A4 Legal Letter sizes Universal accommoda
156. roller 1 and separation roller of the lower cas sette Paper lifting plate Pick up roller Cassette pick up cam Nc Main motor drive Shaft drive arm Feed roller 1 Separation roller Cassettte pick up solenoid Lift up release arm Feed roller gear Lift up cam Pick up motor drive Pick up roller shaft fixing arm Figure 2 5 3 CHAPTER 2 Pick up timing from the upper cassette A4 tow pages continuously print Power switch ON PRINT signal PRNT VERTICAL SYNC signal VSYNC Unit Seconds Main motor MT1 Pick up motor SMT1 Cassette pick up solenoid SL1 5 3 0 0 01 1 0 5 1 97 Feed clutch CL2 Registration clutch CL1 About 1 5 Pick up unit paper sensor PS2 Registration paper sensor PS1 Fixing unit paper sensor PS1403 Figure 2 5 4 Pick up timing from the lower cassette A4 tow pages continuously print Power switch ON PRINT signal PRNT VERTICAL SYNC signal VSYNC Main motor MT1 Unit Seconds Pick up motor SMT1 Reverse high speed rotation Cassette pick up solenoid SL1 Feed clutch CL2 052 Aboutll lAboutQ o Registration clutch CL1 Pick up unit paper sensor PS2 Registration paper sensor PS1 Fixing unit paper sensor PS1403 Figure 2 5 5 CHAPTER 2 a Cassette detection c
157. s for any extended period of time as heat can damage the cartridges 3 Avoid high low and changeable temperature humidity locations 4 Avoid sites with corrosive gases pesticides or salt in the air 5 Store the cartridge within a range of to 35 6 Do not leave cartridges near CRT displays disk drives or floppy disks 7 Store the cartridges out of reach of children CHAPTER 1 b Effective life Cartridges are effective for 2 5 years following the date of manufacture which is displayed in an abbreviated form on the cartridge The cartridge life span is also displayed month and year on the cartridge box as 2 5 years from the date of manufacture Cartridges should be used within their life spans as image quality will deteriorate after the expiry date 3 Handling 1 When loading a new cartridge into the printer or when the toner in an already loaded 2 3 4 5 6 7 tridge hardens and blank spots appear on output images hold the cartridge at each end as shown in the below figure and slowly rock it about 45 in each direction 5 to 6 times This will evenly distribute the toner and then reload it into the printer Do not shake the cartridge in any other way as toner may leak from the developing cylinder or the cleaning unit Figure 1 5 6 To ensure that toner does not leak and dirty the images be sure to print 3 to 5 pages of test patterns after loading the cartridge in
158. s the main motor When the main motor rotates and reaches its specified speed it sets the MAIN MOTOR READY signal MMRDY to L The CPU notifies the video controller PCB of a main motor failure in the following cases 1 The MMRDY signal does not become withing 2 5 seconds after from the main motor rotation starts 2 The MMRDY signal becomes L once but becomes for more than 0 1 seconds contin uously during the specified speed rotation CHAPTER 2 2 Fan motor control This printer has 4 heat exhausting fans and an air intake fan They are DC brushless motors The figure below shows the fan motor control circuit DC controller PCB Multi purpose Multi purpose tray fan motor tray fan drive circuit FAN5D J34 3 J35 1 55 2 2 FM5 GND 1 3 Fixing unit Scanner unit fan FAN2D FAN2S FM2 GND Electrical unit fan FANSD 12 3 J13 1 FAN3S 2 2 FM3 GND 1 3 Power supply fan FAN1D FAN1S FM1 GND Fixing unit fan 54225 1 FAN4D J25 3 J26 1 2 45 2 2 4 3 GND 4 3 f Figure 2 2 14 When the power switch of the printer is turned ON the CPU IC201 on the DC controller sets the No 53 pin to H and rotates the multi purpose tray fan FM5 at half speed for about 15 sec onds The CPU sets the No 65 pin to H via the gate array IC202 and rotates the power sup ply fan FM1 fixing unit scanner fan
159. s with vibration Dusty places Near fire or water 3 Installation space Install the printer a suitable distance from the wall leaving enough room to operate it see Figure 1 5 1 When installing the printer on a desk etc be sure that it is large enough to accommodate the printer s feet rubber pads and sturdy enough to hold its weight CHAPTER 1 900mm 900mm 2 2300mm 3 2300mm _ _ _ 3 _ 1 900mm 100mm 834mm E E Lo Y 2600mm i E E Q Lo 1 E P E S Ee T 2600mm E 2600mm 100mm d E E e e 9 1 TES s 1380mm Figure 1 5 1 C CHAPTER 1 Unpacking and Installation Condensation will form on metal surfaces when brought into a warm room from the cold Therefore when moving the printer to a warm environment leave it packed in its box for at least an hour to acclimatize to room temperature 1 1 2 3 4 5 6 7 2 1 2 3 4 5 3 Printer Open the printer packaging Take out the accessories Confirm that the power cord cartridge and face up tray are included The printer
160. signals In response to the VIDEO signals VDO VDO the laser driver switches the laser diode ON and OFF The laser beam is scanned repeatedly across the photosensitive drum with the scanning mir ror to form the latent electrostatic image of the original image The latent electrostatic image on the photosensitive drum is transferred onto the paper in the electronic photographic process and the paper is sent out through the face down or face up trays When a page is being printed the DC controller checks for other PRNT or VSYNC signals from the video controller If none have arrived the DC controller begins operation of the last rotations period LSTR At the end of this period the printer enters standby STBY mode If other PRNT or VSYNC signals arrive during printing the print sequence continues The last rotations operation is performed and the printer enters standby mode CHAPTER 2 F Other Controls 1 Main motor control Figure below shows the main motor control circuit DC controller PCB pones PR 24VB 4218 5 J36 5 201 m 6 6 MT1 38 1 MMRDY 1 P 39 2 MMOTD 2 L 3 28 a T Figure 2 2 13 The main motor is a DC brushless motor with hall elements and is unified with the motor drive circuit CPU 201 sets the MAIN MOTOR DRIVE signal MMOTD to and rotate
161. sistors LEDs Test Pins Jumpers and Switches on PCBs Only the variable resistors LEDs test pins jumpers and switches required for after sales ser vice in the field are listed below other variable resistors test pins etc are for the factory use only The adjustment and check using these test pins etc require special tools measuring instruments and high preci sion Do not touch them in the field Notes 1 Some LEDs receive leakage current during normal operation thus glow dimly even when they should be OFF 2 Variable resistor which may be adjusted in the field are marked Variable resistor which may not be adjusted in the field are marked 1 DC controller PCB 9225 LED201 212 4206 4207 Figure 4 7 3 CHAPTER 4 Table 4 7 1 Function Test print switch Sensor check Nete Note Sensor check is available only when the service mode is specified by the printer driver tester Refer to the operating manual of the printer driver tester for details 2 Switch sensor PCB 1 3 SW1401 Figure 4 7 4 Table 4 7 2 Function SW1401 Door switch CHAPTER 4 3 Cassette paper size detection PCB SW1604 SW1603 SW160
162. t 5V Operation 1 Noise Over current Phototriac 1 panel filter detection circuit coupler 6 l eru CE _ 424VA Scanner Converter 1 motor Rush curren prevention Filter 424V High voltage Switching FET Figure 2 2 11 AC power is supplied to the low voltage power supply when the main switch S101 is turned ON The low voltage power supply generates the required 24VDC 5VDC and 3 3VDC for the printer 24VDC is supplied to the DC controller from the low voltage power supply when the DC controller sets the REMOTE 24V signal REMT24 to L 24VDC is supplied to the high voltage power supply PCB 5VDC main motor scanner motor and fans 5VDC is used for sensors and ICs on the DC controller PCB 24VDC is divided into 24VA which is normally supplied from the power supply and 24VB which is shut OFF when the door switch SW1401 is turned OFF by opening the top cover or 2 19 CHAPTER 2 delivery cover 5VDC is divided into 5V which is normally supplied to the ICs the DC controller from the power supply and 5V for power saving mode P5VB1 Supply of 5V for the power saving mode is stopped when the sleep command is received from the video controller During standby mode and periods when printing is not possible when RDY signal is H the 5V is supplied OFF and ON The DC control
163. t 0 Screws Multi purpose tray pick up unit Figure 3 3 10 E Registration Roller Unit 1 Open the upper cover 2 Remove the clutch cover 3 Open the transfer charging roller guide Transfer charging roller guide Figure 3 3 11 4 Undo the connector 5 Remove the 4 screws and take out the registration roller unit Connector Q Screws G Registration roller unit Figure 3 3 12 CHAPTER 3 F Delivery Unit G Fixing Unit 1 Remove the upper cover unit 1 Open the delivery cover unit 2 Remove the front cover 2 Move the 2 fastening levers of the fixing 3 Remove the right rear and rear covers unit in the direction of the arrow slight 4 Remove the left rear cover ly lift the fixing unit and pull it out 5 Disconnect the connector and remove toward you the 3 screws Fixing unit fastening levers Fixing unit Figure 3 3 13 Figure 3 3 15 6 Remove the 2 screws 7 Slightly lift the delivery unit up then pull it out toward you Figure 3 3 14 CHAPTER 3 Notes 1 When replacing the fixing unit be sure to confirm the location of the fixing unit envelope lever before replacement and then position it the same way after installing the new fixing unit Normal mode 2 Envelope mode Figure 3 3 16 2 Make sure to turn the power OFF and unplug the power cord before replacing the fixing unit Afte
164. t Action Replace the fixing unit 10 11 12 CHAPTER 4 The fixing unit delivery sensor lever does not move smoothly or is damaged Action Adjust the lever so that it moves smoothly If it is damaged replace it The fixing unit delivery roller is worn Action Replace the fixing unit delivery roller The fixing unit delivery roller does not rotate smoothly Action Check the gears and replace any worn or fractured gear s The face down delivery roller does not rotate smoothly Action Check the gears and replace any worn or fractured gear s Defective fixing unit delivery sensor Action Replace the sensor CHAPTER 4 PAPER TRANSPORT TROUBLESHOOTING If the factor of the malfunction is identified as paper transport troubleshooting by the mal function diagnosis flowchart Figure 4 1 1 execute the followings and mend the defect IV 1 Multiple Paper Feed lt Possible causes gt 1 If this problem occurs with the multi purpose tray perform step 4 and subsequent steps 2 The separation roller is worn or deformed Action Replace the separation roller together with the feed roller 3 The spring is defective Action Replace the spring that pulls the separation roller 4 The separation pad surface is worn Action Replace the separation pad together with the multi purpose tray pick up roller 5 The spring is defective Action Replace the spring of the separation pad IV 2 Wrinkles folde
165. t scanner unit fan Screws Fixing unit scanner unit fan Figure 3 7 8 3 Power supply fan 1 Remove the right rear and rear covers 2 Disconnect the connector EER A Connector Figure 3 7 9 3 Remove the 2 screws and then the power supply fan Screws Power supply fan Figure 3 7 10 4 Electrical unit fan 1 Remove the right rear and rear covers 2 Remove the left rear cover 3 Undo the connector 4 Pinch the 2 claws holding the electrical unit fan and pull out the fan Connector Claws Electrical unit fan Figure 3 7 11 CHAPTER 3 5 Fixing unit fan 1 Remove the upper cover unit 2 Undo the connector 3 Remove the screw and then the fan grounding plate Disconnect the 4 claws to remove the fixing unit fan d SS Connector Screw G Fan grounding plate Claws Fixing unit fan Figure 3 7 12 CHAPTER 3 6 Multi purpose tray pick up unit fan 1 Remove the multi purpose tray pick up unit following steps 1 6 on Page 3 12 2 Disconnect the connector 3 Remove the screw claw and then the fan duct together the multi purpose tray pick up unit fan 4 Remove the multi purpose tray pick up unit fan from the fan duct Connector Screw Claw Multi purpose tray pick up unit fan Figure 3 7 13 CHAPTER 3 VIII PCBS A Locations DC controller PCB Pick up Multi purpose tray PCB Swi
166. tay Jam 19 3 SORTER JAM Jam at entrance sensor Delay Jam 19 4 SORTER JAM Jam at entrance sensor Early Jam 20 1 SORTER JAM Jam at reversing sensor Initial Jam 20 2 SORTER JAM Jam at reversing sensor Stay Jam 20 3 SORTER JAM Jam at reversing sensor Delay Jam 20 4 SORTER JAM Jam at reversing sensor Early Jam 21 1 SORTER JAM Jam at vertical path sensor Initial Jam 21 2 SORTER JAM Jam at vertical path sensor Stay Jam 21 3 SORTER JAM Jam at vertical path sensor Delay Jam 21 4 SORTER JAM Jam at vertical path sensor Early Jam 22 1 SORTER JAM Jam at face up delivery sensor Initial Jam 22 2 SORTER JAM Jam at face up delivery sensor Stay Jam 22 3 SORTER JAM Jam at face up delivery sensor Delay Jam 22 4 SORTER JAM Jam at face up delivery sensor Early Jam paper and close cover DUPLEX OPTION ERROR The duplexing unit has been removed or is no longer properly seated Re insert the duplexing unit into the printer ENVELOPE OPTION ERROR The envelope feeder has been removed or is no longer properly seated Re insert the envelope feeder into the printer OPTIONS CONTROLLER Option controller error with 2 000 sheet deck or 2x500 sheet deck Re connect the 2 000 sheet deck or 2x500 sheet deck to the print er OPT CONTROLLER ERROR There is a problem with the Options Controller Repla
167. tch sensor High voltage power supply PCB Upper cassette paper size sensing PCB Lower cassette paper size sensing PCB Power supply Figure 3 8 1 CHAPTER 3 B Video Controller PCB Unit 1 Removal from the printer 1 Loosen the 2 screws then pull out the video controller PCB unit m Screws Q Video controller unit Figure 3 8 2 2 Disassembly reassembly a Video Controller PCB 1 Remove the 2 screws Video controller PCB Screws Figure 3 8 3 2 Remove the 2 screws M3 and the guide 3 Remove the 1 screw M4 and the 4 screws M3 then take out the video controller PCB Screw 2 Guide Screws M4 amp Screws amp Video controller PCB Figure 3 8 4 Note If you removed ROM DIMM or RAM DIMM when you repaced the video controller PCB reinstall it on the new video controller PCB b Removal of RAM DIMM ROM DIMM option 1 Push down the socket lever to remove the RAM DIMM or ROM DIMM Be sure not to touch the elements Socket lever RAM DIMM ROM DIMM Cutout Figure 3 8 5 Note When installing the RAM DIMM or ROM DIMM onto the video con troller PCB note that the shape of the RAM DIMM cutout differs from that of the ROM DIMM cutout CHAPTER 3 C DC Controller PCB 1 Remove the high voltage power supply unit following steps 1 3 on Page 3 47 2 Dis
168. tential difference projects the toner particles to them This is called toner projection making the latent image on the drum visible Developing cylinder surface potential Drum surface potential exposed area DC bias Drum surface potential unexposed area Figure 2 4 9 An AC bias is applied to the developing cylinder to help project the toner particles to the drum surface and improve the contrast of the printed image The center voltage of the AC bias 1600 Vp p varies with the DC bias voltage The change in the DC bias changes the potential differ ence between the cylinder and drum so the density of the print can be adjusted It can be done through a command from an external device This printer has a stirring mechanism in the cartridge to ensure that toner is applied smooth ly to the cylinder 3 Transfer stage In the transfer stage the toner image is transferred from the drum surface to the paper Step 4 Transfer Transfer charging Figure 2 4 10 A positive charge applied to the back of the paper attracts the negatively charged toner particles to the paper 2 38 CHAPTER 2 Reference If the image on the photosensitive drum is not completely transferred onto the paper due to jam ming etc the toner may adhere to the transfer charging roller The printer removes the toner from the transfer charging roller by switching the transfer voltage between positive and negative in the specified s
169. ter make a test print and assess the abnormality of the printer 1 Engine test print Test print patterns of horizontal lines are printed in this test print The test prints can be made by using the printer driver tester which can make all four test patterns vertical lines horizon tal lines solid black and solid white or the test print switch located on the right side of the printer see Figure 1 4 1 One print of test pattern can be made by pressing the switch once when the power is turned ON and the READY appears on the display If the switch is held down test prints are made continuously Make sure that paper is loaded into the lower cassette before pressing the switch as this is where the paper is picked up from _ Figure 4 1 2 CHAPTER 4 2 Controller test print The following items can be printed by selecting and executing a TEST MENU SHOW PAGE COUNT Displays the total number of pages printed The total page number is only shown briefly on the display but does not print The page count prints in the TEST PRINT e TEST PRINT Make a Test Print The Test Print lists the printing environment settings and also displays the graphic and text printing capabilities e PRINT PS FONTS Available only after the Transla
170. tes A3 B4 A4 Ledger Legal Letter sizes Face down face up About 500 sheets 755 1 paper About 100 sheets 755 1 paper CHAPTER 1 11 Duplex print Auto duplexing Manual duplexing Note 4 12 Environment Temperature Humidity Air pressure 13 Maximum power consumption When duplex unit option is installed and plain paper 64g m to 105g m recommended paper only Plain paper 645 1 to 1285 1 recommended paper on multi purpose tray only 10 to 32 5 20 to 80 RH 760 to 1013hPa 560 760mmHg equivalent to O 2 600m above the sea level About 1 220W 20 room temperature rated voltage 14 Noise level Officially announced level based on ISO 9296 15 Dimensions 16 Weight Sound power level 1 10 6 9B or less printing 5 3B or less standby Sound pressure level 54dB or less printing Bystander position 38dB or less standby 566 w x 520 D x 540 H mm excluding some projections About 50kg printer Aabout 3 4kg cartridge 17 Line voltage requirements 18 Options 220 to 240V 10 4 696 50 60Hz 2 2 Duplex unit DU 82 envelope feeder EF 9 2000 sheet paper deck PD 82 2x500 sheet paper deck PD 82K sorter S 82 stapler stacker SS 72 Notes 1 A test print at room temperature of 20 with rated voltage input 2 When the printer is in READY state at a room temperature of 20 C the time from reception of the PRINT signal from the video controller
171. that the power plug is inserted to the printer and the outlet securely go N Paper checks The recommended paper for this printer is used The paper is not damp pP Paper sets paper is set to the pick up source within the specified volume paper is set to the selected pick up source correctly cassette is installed in the printer correctly 4 72 cartridge sets The cartridge is installed in the printer correctly 5 Condensation During winter particularly when moving the printer into a warm room from a cold location such as a warehouse various problems can occur due to condensation in the printer Example a Condensation in the optical system six faced mirror reflecting mirror lens etc will result in light output images b Asthe photosensitive drum is cold the resistance of the photoconductive layer is high This will lead to incorrect contrast If condensation appears leave the printer ON for 10 to 20 minutes If a cartridge is opened soon after being moved from a cold room to a warm room condensa tion may appear inside the cartridge and may cause various image defects Be sure to instruct the customer that it is necessary to leave the cartridge sealed for one to two hours at room temperature to allow it to acclimatize CHAPTER 4 C Test Print The test print is divided into two types engine test print and controller test print If a malfunction occurs in this prin
172. the duplexing Remove the jammed paper from the paper path The top cover must be opened and closed to resume printing Message Meaning APPENDIX Action unit 10 PAPER JAM Paper jam has occurred near the duplexing unit 11 PAPER JAM Paper jam has occurred in the duplexing unit 12 PAPER JAM Paper jam has occurred in the duplexing unit 13 1 PAPER JAM CHECK DECK Paper jam has occurred in the 2 000 sheet deck or 2x500 sheet deck 13 2 PAPER JAM CHECK DECK Paper jam has occurred in the 2 000 sheet deck or 2x500 sheet deck 13 3 PAPER JAM CHECK DECK Paper jam has occurred in the 2 000 sheet deck or 2x500 sheet deck 13 4 PAPER JAM CHECK DECK Paper jam has occurred in the 2 000 sheet deck or 2x500 sheet deck 14 1 PAPER JAM OPEN RIGHT COVER Paper jam has occurred in the right cover 14 2 PAPER JAM OPEN RIGHT COVER Paper jam has occurred in the right cover 14 3 PAPER JAM OPEN RIGHT COVER Paper jam has occurred in the right cover 14 4 PAPER JAM OPEN RIGHT COVER Paper jam has occurred in the right cover Check the deck Remove the jammed paper from the paper path The top cover must be opened and closed to resume printing CHECK INPUT AREA A paper jam occurred near the input tray Check the area specified OPEN TOP COVER A paper jam occurred near the top cover Check the area specified CHECK OUTP
173. the job If the printer is printing and a tray runs out of paper for instance simply load ing the tray and closing it will cause the printer to continue nor mally If however the printer does not contain the required paper size or media type the user must select change the media type from front panel Open the tray and load the appropriate media type paper size into the specified tray The printer will resume printing after the tray is reinstalled In the case of manual feed discussed following the Continue key must always be pressed Message Meaning APPENDIX Action Media Type PLAIN Plain LETTERHEAD Letterhead TRANSPARENCY Transparency LABELS Labels BOND Bond RECYCLED Recycled COLOR Color CARDSTOCK Cardstock ROUGH Rough paper CUSTOM or user defined media type CUSTOM2 or user defined media type CUSTOMS or user defined media type or user defined media type CUSTOMS or user defined media type CUSTOMG or user defined media type Note User defined media type name can be up to 15 maximum characters long LOAD MEDIA SIZE IN MANUAL Load multi purpose tray with paper size Like Load but for manual feed only Press the Continue key to resume printing LOAD BLANK SIDE UP IN MANUAL This message displays right after the front side of the cleaning page has been created Load the blank side face up in the multi purpose tray P
174. the target fixing temperature and print speed are different from that of nor mal printing 2 10 Table 2 2 1 Target temperature WAIT STBY PRINT note 1 CHAPTER 2 PRINT SPEED 020 2 ppm Normal mode 170 Rough mode 169 190 32 195 24 Notes 1 The target temperature for the first page in duplex print is 5 C lower 2 The print speed in the above table is for A4 or Letter sized paper CHAPTER 2 DC controller PCB 45V 4 45V a45V 45V 222 2 FSRTH Q208 0207 i Thermistor 3 GNDTH Thermoswitch 2 4 5V 222 1 TSWOUT 4 TSWI Fixing roller 5V heater roller 45V EN Hds lag 9 o Oo 65465 22 o 5 Se Fe E a o LL ee 2 otie mmm m 5 S S NN 5 mee om o Safety Relay Low voltage circuit drive power supply circuit circuit Current transformer Inverter control circuit Figure 2 2 8 CHAPTER 2 2 Protective function The printer has three protection functions to prevent abnormal temperature rise of the fixing roller CPU monitors the
175. the wire cover 3 Remove the fixing entry guide 4 Disconnect the connector and remove the cable from the fixing left cover Connector Fixing left cover G Cable Figure 3 5 3 5 Remove the screw and the thermistor Screw 2 Thermistor Figure 3 5 4 Note on reassembly gt When installing the thermistor ensure that its detection surface is uniformly contact ing the fixing upper roller surface If it is not making an uniform contact check that deformed the plate spring has not 1 2 CHAPTER 3 Registration Paper Sensor Remove the feed unit following steps 1 7 on Page 3 14 Disconnect the connector from the back of the feed unit and then remove the registration paper sensor CHAPTER 3 G Pick up Unit Paper Sensor 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Disconnect the connector and then remove the 2 claws and the sensor unit Connector Claws Sensor unit Figure 3 5 5 3 Remove the pick up unit paper sensor from the sensor unit H Pick up Unit Door Sensor 1 Remove the pick up PCB following steps 1 3 on Page 3 44 2 Remove the 2 screws 3 Unhook the 2 claws and remove the gear cover Screws Claws Gear cover Figure 3 5 6 4 Disconnect the connector from the gear cover and remove the pick up unit door sensor 1 Lower Cassette Sensor Upper Cassette Sensor Lower Cassette Paper level Sensor 1 Lower Cassette
176. thermistor voltage If the thermistor voltage becomes lower than about 1 0V 230 the CPU identifies the fixing unit failure and interrupts power to the fixing unit and reports it to the video controller e Ifthe surface temperature of the upper fixing roller rises abnormally and the thermistor volt age falls below about 0 8V 235 C the safety circuit in the power supply interrupts power to the fixing roller heater regardless of outputs from the CPU e Ifthe surface temperature of the upper fixing roller rises abnormally and the thermoswitch temperature exceeds 200 C the thermoswitch turns off and cuts power to the fixing roller heater 3 Fixing unit failure detection The CPU assesses a fixing unit failure in the following cases and reports it to the video controller a Thermistor broken wire detection The detected voltage of the thermistor is 4 6V or more when the thermistor voltage detection mode note is in the error detection mode after the fixing heater is activated b Maximum temperature detection The fixing temperature rises abnormally and the temperature detected by the thermistor exceeds about 230 C during standby or printing c Warmup error detection The fixing unit does not reach the target temperature see Table 2 2 1 within 180 seconds after the start of warm up d Broken wire detection after the fixing unit is ready The temperature detected by the thermistor is 150 C or below during standby or printing
177. til the printer has warmed up and displays READY I O INITIALIZING This message displays when one of the net work boads is being initialized No action required READY Printer is ready to receive data and print No action required PAUSED Printer is OFFLINE Press ONLINE PRINTING Usually displayed when printing an item from the TEST MENU or when attempting to go Offline while the printer is busy No action required KEY NOT VALID Displays when a key is pressed that is not enabled at this time Press the correct key to complete the current function RESET TO SAVE RESET verification prompt This message will appear momentarily and then PAUSED When a menu item was changed before the printer releases the port on which the last job was processed such as in the middle of a job or before the port timed out RESET TO SAVE doesn t display or take effect for the following menu items Parallel menu bidirectional on off Config menu density pwrsav paper type menu upper lower deck mpt feeder menu mptsize Two options are available 1 Press the reset key to enter the RESET menu and save the information immediately This will terminate the cur rent job deleting temporary fonts macros and buffered data Press ONLINE and the cur rent job will resume where it left off The menu changed will not take effect until the next end of job items
178. tor Module A 72 for Adobe PostScript Level 3 module has been installed Prints the PS Font List e PRINT PCL FONTS Prints the PCL Font List e PRINT PS DEMO Available only after the Translator Module A 72 for Adobe PostScript Level 3 module has been installed Prints the PS demonstration page e PRINT PCL DEMO Prints the PCL demonstration page e CONTINUOUS TEST Make continuous Test Prints e STAPLE TEST Available only when the staple stacker SS 72 is installed Use STAPLE TEST when you replaced the staple cartridge e CLEANING PAGE Use CLEANING PAGE to print cleaning patterns to clean the fixing unit when an image defect occurred and its cause is suspected to be the fixing unit Refer to Maintenance and ser vicing by the customer in Chapter 1 for details Follow these steps to make a Test Print 1 Press the On Line key to set the printer off line The On line indicator should be OFF and PAUSED appears in display 2 Press the Menu key until you see TEST in the top line 3 Press the Item key until you see TEST PRINT in the bottom line 4 Press the Enter key to start printing a Test Print 5 After the pages are printed press the On Line key to put the printer on line Use the Test Print to verify the operation panel selections system configurations memory and options and print quality CHAPTER 4 Canon Inc LBP 3260 Printer Canon Configuration Page PCL MENU MEMCONFIG MENU RESET MENU PR
179. until the printer is turned OFF e Update flash Turn ON the printer with the Enter and Shift keys pressed This function supplies the flash menu for managing down loading the firmware CHAPTER 2 CHAPTER 3 THE MECHANICAL SYSTEM I PREFACE 3 1 V SWITCHES SENSORS 3 24 EXTERNALS ene 3 2 VI CLUTCHS SOLENOIDS 3 31 MAIN UNITS 3 8 MOTORS FANS 3 35 IV MAIN PARTS 3 15 3 41 CHAPTER 3 I PREFACE This chapter describes disassembly and reassembly procedures of the printer The service technician is to find the factor of the failure according to the Chapter 4 Troubleshooting and to follow the disassembly procedures in this chapter to replace the defec tive part s Replacement of consumable part s is also to be conducted according to the proce dures described in this chapter Note the following precautions during disassembly or reassembly 1 At disassembly reassembly or transportation of the printer remove the toner cartridge as necessary When the cartridge is out of the printer put it in a protective bag to prevent light from affecting it 2 CAUTION Before servicing the printer disconnect its power cord from the electrical out let 3 Assembly is the reverse of disassembly unless otherwise specified 4
180. ves the face up deflector to the face up tray and the paper is delivered through the face up tray If FUSLD is the paper is delivered through the face down tray on the top of the print er The paper delivered through the face down tray is detected by the face down tray delivery sensor PS1402 When the face down tray becomes full this is detected by the face down tray paper full sensor PS1401 CHAPTER 2 D Paper Jam Detection The following paper sensors are provided to detect whether paper is present and whether the paper is fed normally Registration paper sensor PS1 Pick up unit paper sensor PS2 Fixing unit delivery sensor PS1403 Face down tray delivery sensor 51402 microprocessor CPU determines whether paper 1 jammed by checking whether paper is present or absent at the sensors at times stored in memory If the CPU determines that a jam has occurred it stops print operation and notifies the jam to the video controller l Pick up delay jam 1 The CPU assesses a pick up delay jam 1 if the paper does not reach the pick up unit paper sen sor PS2 within the specified period of time after the pick up operation Upper lower cassettes about 6 4 seconds Duplexing unit Option about 2 4 seconds Paper deck Option about 7 0 seconds 2 Pick up delay jam 2 The CPU assesses a pick up delay jam 2 if the registration paper sensor PS1 cannot detect the leading edge of the paper within about 0
181. weighs approx 50kg therefore 4 people be needed to lift the printer and to move to the installation area Take the plastic bag off the printer and peel the tape off each part Check that none of the covers were scratched or deformed during shipment Open the delivery cover and remove the pressure release spacer from the fixing unit Open the upper cover and remove the tape and the packing materials from inside the print er Pull the two cassettes out of the printer and remove the packaging from the cassette Cartridge Open the bag holding the cartridge and take out the cartridge Remove the tape and the black sheet from the cartridge Hold the cartridge on each side as shown in figure 1 5 2 and slowly rock it 5 to 6 times to evenly distribute the toner Place the cartridge on a flat surface While holding down on the top of the cartridge with one hand grasp the tab with the other and gently pull out the sealing tape Open the upper cover of the printer and load the cartridge with both hands Slowly insert it until it firmly contacts with the back of the slot Unpacking and installing the hard disk Note 1 Before handling the hard disk be sure to touch the metal part of the printer to dis charge electrical static from you body in order to avoid causing damage to the PCB by the difference in static charge at that time 2 When removing the PCB at the back of the printer be sure not to touch the electrical parts on the
182. wn in MPT Caricare questa pagina con questa facciata verso il basso nel MDT L g dette ark med denne side nedad i universalbakke Legg i arket med denne siden ned i den manuelle materen Laad dit vel met deze kant naar beneden in MPT Coloque esta p gina com este lado para baixo no MPT Lattaa tama arkki tama puoli alaspain MPT hen Cargue esta hoja en MPT con esta cara hacia abajo Introduire cette page ce c t vers le bas dans le tiroir polyvalent L gg detta ark med textsidan ned t din MPT Legen Sie dieses Blatt mit dieser Seite nach unten in den MPT ein Figure 1 6 3 CHAPTER 1 12 Place the printed Cleaning Page into the multi purpose tray with the printed side face down Figure 1 6 4 13 Press the Continue key to feed the Cleaning Page on the other side of the paper LOAD CLEANING PAGE IN MANUAL will appear and the Continue LED will light up 14 Place the Cleaning Page into the multi purpose tray Figure 1 6 5 15 Press the Continue key to feed the Cleaning Page through the printer to clean the fixing unit CHAPTER 1 VII OPERATION A The Operation Panel The operation panel is used to perform basic printer operations make printer configuration changes that software applications cannot control identify available typefaces and check the status of the printer The operation panel consists of the status indication display nine indicator lights

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