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Canon LBP-1760, Service Manual

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Canon LBP-1760 Service Manual Download Page 213

Table 4-8-4

Note:

To set the printer to enter ready inhibit mode at power-ON, set the mode using the
switches and then turn ON the printer while holding SW11 to “1.”

4 - 51

CHAPTER 4

Test print selection

Density selection

SW1

SW2

SW3

SW4

SW5

SW6

SW7

SW8

SW9

Ready inhibit (Note)

Test print

Scanner motor ON

Switch resolution
600dpi: "0"
1200dpi: "1"

—

—

—

0

0

1

0

0

1

Duplex test print

SW5 SW4 SW3

Paper pick-up source

Cassette

—

Multi-purpose tray

Paper feeder

Envelope feeder

Cassette

Cassette

Cassette

SW7

SW6

Test pattern

Vertical lines

Horizontal lines

All-white

All-black

SW6 SW5 SW4 SW3

0

1

0

0

0

1

1

1

0

1

0

1

1

0

0

1

0

1

1

0

1

0

1

0

Density

Normal
mode

0

0

0

0

0

1

1

1

1

1

0

0

0

0

1

0

F1

F5

F9

Change density directly

with the above 4 bit data.

—

—

—

—

0

0

1

1

0

1

0

1

Operation selection

Summary of Contents for LBP-1760

Page 1: ...SERVICE MANUAL REVISION 0 COPYRIGHT 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON RY8 1387 000 MAY 1998 LBP 1760 ...

Page 2: ...f 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 ...

Page 3: ...f the operating principles and timing sequences of the electrical and mechanical systems Chapter 3 The Mechanical System Explanation of mechanical operation disassembly reassembly and adjustment pro cedures Chapter 4 Troubleshooting Troubleshooting procedures reference values and adjustments maintenance and servicing etc Appendix General timing chart general circuit diagram etc Information in this...

Page 4: ...serWriter 16 600 PS laser beam printer 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 MASS microsystems Quickimage 24 video capture board and modified with Adobe Photoshop J ...

Page 5: ... IV IMAGE FORMATION SYSTEM 2 28 A Outline 2 28 B Printing Process 2 30 V PICK UP FEED SYSTEM 2 38 A Outline 2 38 B Paper Size Detection 2 40 C Cassette Pick up 2 41 D Multi purpose Tray Pick up 2 44 E Fixing and Delivery Unit 2 46 F Paper Jam Detection 2 48 VI VIDEO CONTROL SYSTEM 2 50 A Video Controller Circuit 2 50 B Adapter Circuit 2 52 C Operation Panel 2 55 D Self Test 2 56 VII PAPER FEEDER 2...

Page 6: ...9 CHAPTER 4 TROUBLESHOOTING I PREFACE 4 1 A Malfunction Diagnosis Flowchart 4 1 B Initial Check 4 4 C Test Print 4 5 II IMAGE DEFECTS 4 10 III PAPER JAMS TROUBLESHOOTING 4 16 IV PAPER TRANSPORT TROUBLESHOOTING 4 22 V MALFUNCTION TROUBLESHOOTING 4 24 VI MALFUNCTION STATUS TROUBLESHOOTING 4 25 VII MEASUREMENT AND ADJUSTMENT 4 34 A Mechanical Adjustment 4 34 B Electrical Adjustment 4 38 C Variable Re...

Page 7: ...APPENDIX I GENERAL TIMING CHART A 1 II GENERAL CIRCUIT DIAGRAM A 3 III LIST OF SIGNALS A 5 IV MESSAGE TABLE A 11 ...

Page 8: ......

Page 9: ...TER 1 PRODUCT INFORMATION I FEATURES 1 1 II SPECIFICATIONS 1 3 III SAFETY INFORMATION 1 6 IV PARTS OF THE PRINTER 1 7 V INSTALLATION 1 12 VI MAINTENANCE AND SERVICING BY THE CUSTOMER 1 19 VII OPERATION 1 20 ...

Page 10: ......

Page 11: ...energy saving function that automatically reduces power consumption when the printer is idle for the specified period of time offers lower power consumption 6 Reduction in toner consumption Toner consumption can be reduced by selecting the economy mode and printing rough image with lesser toner 7 Automatic PDL switch This printer supports the Hewlett Packard PCL6 printer language It can also suppo...

Page 12: ...This page intentionally left blank 1 2 CHAPTER 1 ...

Page 13: ...ity set in the middle and 4 dot density ratio Transfer Roller transfer Separation Curvature Cleaning Blade Fixing On demand method 8 Feeding Multi purpose tray Cassette Paper feeder option Envelope feeder option Print paper Plain paper recycled paper colored paper labels OHT envelopes Paper sizes Multi purpose tray W 98 4mm L 190mm min W 216mm L 356mm max size plain paper 60g m2 128g m2 recommende...

Page 14: ...z 200 240V 10 6 50 60Hz 2Hz 17 Options Paper feeder duplexing unit envelope feeder Notes 1 At the room temperature of 20 C 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 until an A4 sized print is deliv ered to the face down or face up tray 3 When manual duplexing correct the curl of ...

Page 15: ...per 2 Dimensions 319 W 360 D 141 H mm 3 Weight About 3 5kg 4 Power supply DC24V supplied from printer 3 Envelope feeder 1 Feeding speed 12 prints min 9 prints min 6 prints min variable according to the number of envelopes to be printed or the initial temperature of the fixing unit 2 Envelope types Monarch COM 10 DL B5 C5 recommended envelopes 3 Envelope sizes W 98 4mm L 190mm min W 216mm L 356mm m...

Page 16: ...r used in this printer The ozone gas is emitted 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 1 6 CHAPTER 1 Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM DANGER INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM CAUTION RAYONNEMENT LASER INVISIBLE EN C...

Page 17: ... Figure 1 4 3 1 Face down tray 2 Face up tray 3 Operation panel 4 Right rear cover 5 Power switch 6 Cassette 7 Multi purpose tray 8 Top cover 9 Test print switch 10 Parallel interface connector 11 Power receptacle 12 Expansion I O slots 13 EP 52 cartridge 1 7 CHAPTER 1 12 11 13 ...

Page 18: ... feeder Figure 1 4 4 3 Duplexing unit Figure 1 4 5 4 Envelope feeder Figure 1 4 6 1 Paper feeder 2 500 sheet cassette 1 Duplexing unit jam release cover 1 Envelope guide 2 Extension tray 3 Weight 1 8 CHAPTER 1 ...

Page 19: ...Laser scanner unit 5 Primary charging roller 6 Developing cylinder 7 EP 52 cartridge 8 Registration arm 9 Pre transfer rollers 10 Multi purpose tray 11 Multi purpose tray pick up roller 12 Cassette 13 Separation pad 14 Feed rollers 15 Cassette separation roller 16 Cassette feed roller 17 Cassette pick up rollers 18 Transfer charging roller 19 Photosensitive drum 20 Feed belt 21 Pressure roller ...

Page 20: ...Paper feeder Figure 1 4 8 1 Pick up roller 2 Feed roller 3 Separation roller 3 Duplexing unit Figure 1 4 9 1 Reversing roller 2 Oblique rollers 3 Duplexing unit pick up rollers 1 10 CHAPTER 1 1 2 3 2 1 3 ...

Page 21: ...4 Envelope feeder Figure 1 4 10 1 Feed rollers 2 Separation rollers 3 Separation guide 4 Pick up rollers 5 Weight 1 11 CHAPTER 1 1 2 3 4 5 ...

Page 22: ...voltage Power frequency 50 60 Hz 2 Hz 2 Operating environment Install in a location that meets the following conditions Level flat surface Temperature humidity within the following ranges Surrounding temperature 7 5 32 5 C Surrounding humidity 5 90 RH relative humidity Cool well ventilated space Do not install in the following locations Exposed to direct sunlight If you cannot avoid such a locatio...

Page 23: ...Figure 1 5 1 1 13 CHAPTER 1 100mm 1220mm 600mm 630mm ...

Page 24: ... pull out the sealing tape 4 Open the top cover of the printer and load the cartridge in the printer Make sure to insert the cartridge until it firmly contacts with the back of the slot 3 Paper feeder 1 Open the paper feeder packaging 2 Take out the paper feeder with the front and rear pads from the package 3 Take the plastic bag off the paper feeder and peel the tape off each part Confirm that no...

Page 25: ...and turn the power switch ON Be sure to use the enclosed power cord 3 After the printer enters the STANDBY mode press the test print switch to make a test print Check if the density of the output image is correct 4 Keep clean around the printer and ensure that it is ready for use at anytime 1 15 CHAPTER 1 ...

Page 26: ...itive drum it will deteriorate if exposed to strong light As there is also toner in the cartridge be sure to explain to the cus tomer the need to be careful in handling and storing unsealed cartridges 1 Storage environment 1 Be sure to store in the protective bag 2 Avoid locations exposed to direct sunlight near windows etc Do not leave the cartridge in cars for any extended period of time as heat...

Page 27: ...he printer print 3 to 5 sheets of test patterns and check for toner leakage to prevent output image from dirt 2 Remove the cartridge from the printer before transporting it During transportation the car tridge must be kept in the protective bag or thick cloth to prevent direct exposure to light 3 Avoid placing the cartridge near CRT displays disk drives or floppy disks as the magnetism generated b...

Page 28: ...Figure 1 5 3 1 18 CHAPTER 1 ...

Page 29: ...onduct to ensure optimum machine performance at all times Table 1 6 1 1 19 CHAPTER 1 Rock the cartridge or replace it if necessary Clean the transfer guide when replacing the cartridge Cartridge Transfer guide Item Customer maintenance Transfer charging roller Upper transfer guide Lower transfer guide ...

Page 30: ...tion display three indicator lights and six menu and operation keys Figure 1 7 1 Status indication display 2 line 16 segment LCD 1 Indicates the printer status and menu setting and displays messages On Line indicator 2 ON The printer is on line Blinking The printer is processing or printing OFF The printer is off line Job indicator 3 ON A page buffer has been composed and is currently stored in pr...

Page 31: ...hift and Enter Cancel keys to exit the current mode and access the RESET MENU Choose RESET PRINTER and press Enter to clear all resources in the printer memory but leave the menu settings unaffected If there are other jobs in the print que these will be printed after the printer has been reset If you choose RESET MENU the factory default values are restored for most menu items Shift key 9 Press th...

Page 32: ...ge the setting press the Value key until the value you want is displayed Then press the Enter key 7 Press the Go key to set the printer on line Figure 1 7 2 list the Menu Operation Flow 2 Confirming menu selections There are two ways the selections made through the operation panel can be reviewed Scroll through the menu items to check all selections marked with an asterisk Make a Test Print The pr...

Page 33: ...formation and does not affect the menu settings The reset menu function RESET MENU clears the memory of all fonts macros and page information and restores most of the menu settings to their factory defaults A cold reset clears the memory and restores all menu settings to their factory default set tings with the exception of the page count value 1 23 CHAPTER 1 ...

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Page 35: ...SRC INTERNAL PCL MENU FONTNUM 0 PCL MENU PITCH 10 00 PCL MENU SYMSET ROMAN 8 PS MENU COPIES 1 PS MENU PRINT ERRS OFF PS MENU PS MENU RESOLUTION 300 1200 300 1 to 999 A5 EXEC COM10 MONARCH C5 DL B5 JIS B5 ISO LETTER LEGAL LANDSCAPE 5 to 128 SOFT 1 to 999 0 44 to 99 99 READY PAUSED Press the Go key to take the printer off line Press the Menu key to display the name of the first menu Press the Item k...

Page 36: ......

Page 37: ... has a slash in front of its name is active at ground level and inac tive at the supply voltage level There is a microcomputer 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...

Page 38: ......

Page 39: ...n tray Fixing unit Developing unit IMAGE FORMATION SYSTEM Duplexing unit Pick up control unit MP tray pick up unit Transfer charging roller Primary charging roller LASER SCANNER UNIT Envelope feeder option Envelope feeder pick up unit Scanning mirror Laser diode Scanner motor BD circuit Photo sensitive drum ENGINE CONTROL SYSTEM Cassette Face up tray Paper feeder option Cassette Cassette pick up u...

Page 40: ...RNT signal is input from the video controller until the engine controller outputs the TOP signal From the end of the INTR period until the top of page sensor detects the trailing edge of the paper After the primary DC voltage turns OFF until the main motor stops Periods Clears the drum surface potential and cleans the transfer charging roller Maintains printer in ready mode Stabilizes the sensitiv...

Page 41: ...ed 7 High voltage control Checks whether there is cartridge or not and the toner level and cleans the transfer charg ing roller after the developing AC bias is turned ON 8 Failure abnormality check In this period the printer checks for door open emergency stop command EC18 reception condition fan motor failure main motor failure and fixing unit failure as required 9 Residual paper check in the pri...

Page 42: ...put from the external device Figure 2 2 1 shows the block diagram of this circuit Figure 2 2 1 2 4 CHAPTER 2 Fixing heater safety circuit High voltage Power supply circuit Cartridge Low voltage power supply circuit Reset IC IC502 Regulator IC503 Video interface control circuit High voltage control circuit Scanner motor control circuit IC501 Engine Controller PCB 3 3V 24VA AC input Sequence control...

Page 43: ...unication with options b Reset IC IC502 IC502 monitors 3 3V and resets the CPU when the power ON c Regulator IC503 IC503 generates 5V from 24V supplied from the low voltage power supply circuit This 5V is supplied to the laser driver and video controller d Fixing heater control circuit fixing heater safety circuit See B Fixing Control in this chapter for details e High voltage power supply circuit...

Page 44: ... down tray becomes full Multi purpose tray paper sensor PS105 J114 3 1 2 3 3V J58 1 3 2 MP SNS L when there is paper on the multi purpose tray Fixing unit delivery sensor 2 PS106 J137 3 1 2 J132 3 5 4 J131 3 1 2 3 3V J31 3 5 4 DEL2 SNS H when sensor detects paper Thermistor TH901 J133 2 1 J132 1 2 J131 5 4 J31 1 2 Door open detection switch SW101 Fixing unit delivery sensor 1 PS501 H when sensor d...

Page 45: ...tion switches L when there is paper in the cassette 1st SNS Detects the paper size by the combination of these signals 24V PS101 SW600 SW601 SW602 J110 3 1 2 J602 1 3 2 J603 5 J603 4 3 2 J72 10 J72 11 12 13 1st SIZE1 1st SIZE2 1st SIZE0 Toner sensor Cartridge TB63 ANT Detects no cartridge installed and toner out ...

Page 46: ... J141 2 Fuse CL101 Feed roller clutch J128 1 2 J127 2 1 J56 4 5 24V Cassette pick up solenoid SL101 J604 1 2 3 3 J603 7 6 J72 8 9 High speed rotation at about 24V and low speed rotation at about 18V FON FLOCK MP SOL Multi purpose tray pick up starts when L 24VA TR CL Feed roller rotates when L J603 8 J72 7 SL0 Cassette pick up starts when H SL1 PCKCHK H when the fan is locked FU901 NEUTRAL HOT Eng...

Page 47: ... MRDY MON Main motor J301 7 6 3 1 2 4 5 24VA M101 Switches to the light intensity of 1200DPI when H Turns the laser ON compulsively when L Turns the laser ON according to the VDO signal when L Turns the laser ON when ENBL signal is L and this signal is L 5V J53 8 9 10 11 12 13 J501 6 5 4 3 2 1 HALF LON ENBL VDO Scanner motor acceleration signal Scanner motor deceleration signal Scanner motor ACC D...

Page 48: ...ler controls the FIXING HEATER DRIVE signal FSRDO so that the fixing heater temperature becomes the specified value This FSRDO signal is generated based on the ZERO CROSS signal ZEROX output from the heater control circuit Figure 2 2 6 2 10 CHAPTER 2 M10 Delivery roller Main motor Pressure roller Fixing heater H901 Temperature fuse FU901 3 3V 3 3V 14 8 9 IC30 3 3V RL 3 3V 6 FSRT 2 3 3 13 1 11 IC30...

Page 49: ... normal mode rough paper mode OHT mode universal mode The print paper size resolution and print modes have the correlations as shown in the table below Table 2 2 1 When printing at 600DPI target fixing temperature is higher compared to printing at 1200DPI as the feed speed is doubled When printing in the universal mode at 600DPI the throughput is decreased if more than the specified number of shee...

Page 50: ...he temperature of the thermal fuse exceeds about 230 C the temperature fuse melts which interrupts the power to the fix ing heater 4 Fixing unit failure detection The CPU assesses a fixing unit failure in case of the conditions a d shown below and does the following 1 Interrupts the power to the fixing heater 2 Sets the RELAY DRIVE signal RLD to L and turns OFF the relay RL101 as well as report in...

Page 51: ... heater is turned ON 4 When the thermistor is in the high temperature detection mode and the initial temperature is 85 C or below the temperature does not exceed about 160 C within about 20 seconds after the heater is turned ON 5 When the thermistor is in the high temperature detection mode and the initial temperature is 85 C or more it does not exceed about 160 C about 140 C in case of 1200DPI wi...

Page 52: ...r When the PRIMARY DC BIAS FREQUENCY OUTPUT signal is output after the specified period of time the voltage superimposing primary DC bias onto primary AC bias is applied to the primary charging roller 2 14 CHAPTER 2 PRNT TOP CPU IC501 Primary charging AC control Primary charging DC density volume control Developing AC control Transfer control Voltage detection output control circuit Amplifier High...

Page 53: ...he photosensitive drum is not attracted to the transfer charging roller The print bias 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 negative bias is applied to the roller for a certain period of time to clean the tra...

Page 54: ...generate abnormal voltage the excess current protec tion system and excess voltage protection system automatically shut off the output voltage to protect the power supply circuit If excess current or excess voltage protection system is activated and the power supply cir cuit does not output DC voltage it is necessary to turn the power OFF correct the problem in the faulty load then power the print...

Page 55: ...exchanged between the engine controller and the video controller and gives information concerning the sequence of printer operation making use of the interface signals a System block diagram Figure 2 2 9 2 17 CHAPTER 2 Video controller Video interface signal see Figure 2 2 10 External device host computer etc Printer Engine controller BD input signal BDI Video signal VDO Laser driver BD PCB ...

Page 56: ...b Video interface signal Figure 2 2 10 2 18 CHAPTER 2 BD PPRDY RDY TOP SBSY STS CCRT PCLK CBSY PRNT PRFD CPRDY VDO CMD CCLK PDLV PFED Video controller PCB Engine controller PCB ...

Page 57: ...er driver through the engine controller In response to the VDO signal the laser driver switches the laser diode ON and OFF The laser beam emitted from the laser diode by the VDO signal is scanned across the pho tosensitive drum with the scanning mirror to form the latent electrostatic image The latent electrostatic image on the photosensitive drum is developed and transferred onto the paper by the...

Page 58: ...d of the main motor to half When the main motor rotates and reaches its prescribed speed it sets the MAIN MOTOR READY signal MRDY to L The CPU notifies the video controller of a main motor failure in the following cases 1 The MRDY signal does not become L after 700ms from the main motor rotation start 2 The MRDY signal becomes L once but goes H for more than 0 1 second continuously during normal r...

Page 59: ...oltage level of half speed rotation 30 seconds later by setting the FON to H the voltage is not supplied to the FON signal and the fan motor stops During the fan motor rotation if the FAN LOCK signal FLOCK becomes H for more than 2 seconds continuously the CPU reports the fan motor failure to the video controller This printer also measures the temperature inside the printer If it gets high it auto...

Page 60: ...cal lens into a paral lel beam It then strikes the scanning mirror which is rotating at a constant speed The beam reflected from the scanning mirror is brought to a point of focus on the photosen sitive drum by the focusing lens and mirror As the scanning mirror rotates at a constant speed the beam is scanned across the drum at a constant speed The photosensitive drum also rotates at a constant sp...

Page 61: ... according to the VDO signal As the beam intensity set value differs between 1200DPI and 600DPI the LASER BEAM INTENSITY SWITCHING signal HALF is set to H for 1200DPI and to L for 600DPI The power adjustment circuit in the laser driver IC switches the beam intensity 2 23 CHAPTER 2 VDO Logic circuit Power adjustment circuit Drive circuit J501 6 J51 11 Control amplification circuit ENBL J501 3 91 EN...

Page 62: ...rom the BD PCB of the laser scanner unit IC501 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 The BD PCB detects...

Page 63: ...ulti purpose tray pick up the printer does not recognize the paper width Therefore the T1 and T2 values are assumed to be the universal size the maximum paper size for the printer 216mm 356mm 3 The CPU detects the duration of time that the paper passes through the top of page sensor PS103 and determines the size of the loaded paper The image is then masked according to the detected paper size 2 25...

Page 64: ...s laser emission and the BDI signal is sent from the BD PCB The CPU compares the BDI signal cycle with the standard clock in the frequency comparator of the CPU and controls the rotation speed of the scanner motor by con trolling the ACC signal until the the scanner motor reaches the prescribed speed When stopping the scanner the CPU decelerates the scanner rotation by setting the SCAN NER MOTOR D...

Page 65: ...s continuously at the scanner motor start or stop 2 The period in which the BDI signal cycles deviate vertically from the specified cycle is about 10mm print distance equivalent during masking or non masking in the normal rotation During non masking in the normal rotation if any BDI signal cycle deviates from the specified cycle the CPU assesses a BD error 2 27 CHAPTER 2 ...

Page 66: ...sitive drum the laser beam modulated by the VDO signal is exposed onto the photosensitive drum surface The latent image formed 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 ...

Page 67: ...leaner blade Photosensitive drum Primary charging roller Cartridge Laser beam Blade Developing cylinder Multi purpose tray pick up roller Cassette pick up roller Static charge eliminator Transfer charging roller Video controller PCB PRNT VDO Engine controller PCB ...

Page 68: ...the base is made of aluminum Figure 2 4 3 The printing process can be divided into five major blocks 1 Electrostatic latent image formation block Step 1 Primary charging Step 2 Laser beam exposure 2 Developing block Step 3 Developing 3 Transfer block Step 4 Transfer Step 5 Separation 4 Fixing block Step 6 Fixing 2 30 CHAPTER 2 Cleaner blade Photosensitive drum Primary charging roller Cartridge Las...

Page 69: ...eveloping Fixing block Transfer block Electrostatic latent image formation block Developing block Multi purpose tray pick up Paper path Direction of drum rotation 2 Laser beam exposure 1 Primary charge 7 Drum cleaning Paper delivery 6 Fixing 5 Separation 4 Transfer Registration Cassette pick up ...

Page 70: ...paration for the latent image formation a uniform negative potential is applied to the pho tosensitive drum surface For primary charging 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 is also applied to the primary charging roller to keep the potential on the drum surface uniform The DC bi...

Page 71: ...ce of the drum to form a visible image This printer uses the toner projection development method with a single component toner Step 3 Developing Figure 2 4 8 Note Charges in the exposed areas of the photosensitive drum are shown as positive in this figure even though they are actually negative It means that the photosensitive drum potential is higher as compared with that of cylinder 2 33 CHAPTER ...

Page 72: ...ch makes the latent image on the drum visible 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 changes in the DC bias change the potential differ ence between the cylinder and drum so that the density of t...

Page 73: ...per is reduced by the static charge eliminator 4 Fixing block As the toner image transferred onto the paper in the transfer block is only adhered by electro static attraction even a light touch will smear the image In the fixing block the toner image is fixed by applying heat and pressure to the paper and the toner This fuses the toner particles onto the paper to create permanent image Step 6 Fixi...

Page 74: ...n the transfer block not all the toner is transferred to the paper but some remains on the pho tosensitive drum In this block the residual toner is cleaned so that the next print image will be clear and dis tinct Step 7 Drum cleaning Figure 2 4 13 The residual toner on the drum surface is scraped away with the cleaner blade to clean the drum surface in preparation for the next print The removed wa...

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Page 76: ... is fed into the printer When the paper reaches the pre transfer roller after passing through the pre feed sensor PS102 its skew is adjusted by hitting the registration arm In the prescribed period of time after the top of page sensor PS103 detects the leading edge of the paper the VERTICAL SYNC signal TOP is sent from the engine controller to the video controller As the paper is fed during this t...

Page 77: ...ETECTION signal 1 DELSNS1 MULTI PURPOSE TRAY PICK UP SOLENOID DRIVE signal MP MAIN MOTOR DRIVE signal MON Face down delivery rollers SW600 SW601 SW602 PS103 PS102 PS106 PS105 CASSETTE PAPER SIZE DETECTION signal Paper size detection PCB Paper size detection switches PS501 PS104 PS101 FIXING UNIT DELIVERY DETECTION signal 2 DELSNS2 FACE DOWN TRAY PAPER FULL DETECTION signal FUL SNS TOP OF PAGE DETE...

Page 78: ... size is set by the user If the setting made by the user is incorrect it results in an incorrect detection Therefore this printer has the top of page sensor PS103 which detects the paper size by measuring the time from the leading edge passes the sensor until the trailing edge passes the sensor If the detected size differs from that specified by the video controller or by the combi nation of the s...

Page 79: ...f the PS102 does not detect no paper within a prescribed time the CPU turns OFF the feed roller clutch CL101 and stops feeding the paper in the prescribed period of time after the top of page sensor PS103 detects the paper present condition of the preceding paper When the top of page sensor PS103 detects the trailing edge of the preceding paper the CPU resumes feeding the stopped paper By this the...

Page 80: ...Figure 2 5 3 2 42 CHAPTER 2 ...

Page 81: ...ansmission 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 results in a weak rotational force being transmitted to the separation roller from feed roller Consequently the separation roller s own rotational force separates the extra sheet Figure 2 5 4 2 43 CHAPTER 2 Normal Multi feed Pap...

Page 82: ...ntact with the multi purpose tray pick up roller At the same time the multi purpose tray pick up roller makes one rotation and a sheet of paper on the multi purpose tray is picked up The separation pad removes the unnecessary sheets and the picked up paper is fed to the top of page sensor PS103 when SL102 is turned back ON again The paper then reaches the registration arm where its skew is correct...

Page 83: ...Figure 2 5 6 2 45 CHAPTER 2 ...

Page 84: ...up and face down tray delivery The paper is usually deliv ered to the face down tray but it changes to face up tray when the user opens the face up tray When the face down tray becomes full it is detected by the face down tray paper full sensor PS104 Figure 2 5 7 2 46 CHAPTER 2 Pressure roller Engine controller PCB Main motor FIXING UNIT DELIVERY DETECTION signal 1 DELSNS1 Face down delivery rolle...

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Page 86: ...up delay jam if the top of page sensor PS103 does not detect the lead ing edge of the paper within the prescribed period of time T after the paper was picked up In case the paper is picked up from the multi purpose tray T about 7 5 sec In case the paper is picked up from the envelope feeder T about 5 sec 2 Pick up stationary jam a When picking up paper from the envelope feeder The CPU assesses a p...

Page 87: ...sor 1 PS501 detects paper when the WAIT period starts if PS501 detects paper within about 2 sec after the WAIT period starts or if the fixing unit delivery sensor 2 PS106 detects paper during the WAIT peri od 5 Retry control Retry control is a method which redresses the pick up delay jam due to pick up error It con ducts pick up operation twice and is applied to all the pick up entrances except th...

Page 88: ...lowing functions 1 DRAM control 2 ROM control 3 Video interface control 4 IEEE 1284 parallel port interface control 5 I O bass interface support c ASIC AIR IC3 The ASCI has smoothing control circuit and SRAM Its main functions are as follows 1 Smoothing control of image 2 EEPROM control 3 Operation panel interface control d DRAM 4 Mbyte DRAM is installed on the video controller PCB 72pin DIMM of 4...

Page 89: ...Figure 2 6 1 2 51 CHAPTER 2 J3 IC3 AIR EEPROM IC10 J10 J9 IC2 ASIC CPU J2 IC1 J6 J7 J8 J5 J4 ROM DIMM0 ROM DIMM1 ROM DIMM2 RAM DIMM0 RAM DIMM1 J1 ...

Page 90: ...s and connects the video controller PCB with the network board option Figure 2 6 2 2 52 CHAPTER 2 Adapter PCB Video controller PCB Optional network bord Engine controller PCB Firmware ROM DIMM Parallel interface connector Optional ROM DIMMs Optional RAM DIMMs ...

Page 91: ... 50 00MHz EEPROM J1 J6 J7 8 J4 5 5V E 3 3V 5V 5V Direction nCVDO nLYNC nVCLK ROM Cont ENGINE I F 5V RAMA 10 0 RAMD 31 0 I O Cont RAS CAS WE CPUCLK 25 00MHz A D 31 0 CPUA 23 2 CPUD 31 0 5V E 3 3V LA 23 2 72pin 1slot for Option 72pin 2slots for job Separator 50pin JSIO for Network Board 50pin PSIO IOA 17 2 5 0V AIRA 6 2 AIRD 11 0 nRESET PANEL I F VDO BD ENGINE I F 3 3V for Option 72pin 2slots J3 Ada...

Page 92: ......

Page 93: ... LED c Changes menu to activate and the set values with the switches 2 Operation The LCD and LEDs on the operation panel are controlled by the signal output from the video controller Any signals indicated by the switches on the operation panel are input to the video controller Figure 2 6 4 2 55 CHAPTER 2 LCD contoller LCD Gate array Switches LEDs 5V 5V J2 B 1 B 2 B 3 B 4 B 5 B 6 B 7 B 8 J301 1 2 3...

Page 94: ...he factory default settings b Check Sum Functions Turn the power switch ON while pressing the GO and Shift keys simultaneously The printer performs the check sum on the requested ROM bank with this function The cal culated Check Sum is displayed on the LCD c Factory Reset Function A4 LTR To reset the paper size default to A4 turn the power switch ON while pressing the Menu Item and Value keys simu...

Page 95: ...clears the LEDs and the display 8 If the Enter key is pressed all the LEDs are lit and all the columns of the LCD are illumi nated i e all the columns are blacked Releasing the key clears the LEDs and the display 9 When all the keys have been tested PANEL CHECK DONE message is displayed and all the LEDs are kept blinking This state persists until the printer is turned OFF e Update flash Turn the p...

Page 96: ...der to the engine controller The printer supplies 24VDC to the paper feeder The paper feeder driver generates 3 3V for the ICs based on this 24V The flow of input output signals to from the paper feeder driver PCB is as shown below Figure 2 7 1 2 58 CHAPTER 2 Paper feeder driver PCB Accepts the command when L SEL1 24VA J801 1 2 3 J811 3 2 1 To printer Command input Status output Serial clock SOUT ...

Page 97: ...er and separation roller are driven by the main motor rotation The pick up roller make one rotation by the solenoid and picks up the paper inside the cas sette Then the unnecessary sheets are removed by the separation roller and the picked up paper is fed to the pre feed sensor PS102 of the printer The CPU on the engine controller PCB detects the conditions of the PS102 for a prescribed period of ...

Page 98: ...2 Paper size detection PCB FEED ROLLER CLUTCH DRIVE signal TRCL TOP OF PAGE DETECTION signal TOP SNS PRE FEED DETECTION signal PRE SNS Pre transfer roller Registration arm Feed rollers Cassette Cassette pick up rollers SW801 SW802 SW803 Paper size detection switches PS801 Separation roller Cassette feed roller PAPER FEEDER PAPER SIZE DETECTION signal PAPER FEEDER PAPER DETECTION signal OPT SNS PAP...

Page 99: ... 4 2 61 CHAPTER 2 PRNT signal Main motor M1 Feed roller clutch CL101 Scanner motor Pick up command Pick up solenoid Pick up roller Feed roller Separation roller Pre feed sensor PS102 Unit second STBY INTR PRINT About 0 1 About 0 7 About 0 15 ...

Page 100: ...C Paper Jam Detection The paper jam detection when the paper is picked up from the paper feeder and fed to the print er is the same as that of the printer See page 2 48 for details 2 62 CHAPTER 2 ...

Page 101: ...sends back the status of the envelope feeder to the engine controller The printer supplies 24VDC to the envelope feeder The envelope feeder driver generates 3 3V for the ICs based on this 24V The flow of input output signals to from the envelope feeder driver PCB is as shown below Figure 2 8 1 2 63 CHAPTER 2 Envelope feeder driver PCB Accepts the command when L SEL2 24VA J901 1 2 3 J911 3 2 1 To p...

Page 102: ... pick up command from the engine controller and turns ON the enve lope pick up solenoid SL901 As a result the pick up roller feed roller and separation roller are rotated sequentially by the main motor rotation and an envelope is picked up Then the unnecessary envelopes are removed by the separation roller and the picked up envelope is fed to the printer The envelope then reaches the registration ...

Page 103: ...HAPTER 2 Engine controller PCB Main motor ENVELOPE PICK UP SOLENOID DRIVE signal ENV SOL MAIN MOTOR DRIVE signal MON PS103 PS102 PS901 TOP OF PAGE DETECTION signal TOP SNS PRE FEED DETECTION signal PRE SNS ENVELOPE DETECTION signal Pre transfer roller Registration arm Envelope feeder driver PCB Torque limiter M101 SL901 ENVELOPE MULTIPLE FEED DETECTION signal MF SNS PS902 ...

Page 104: ...tion of its own rotational force which is the opposite direction of the feeding direction white arrow in the bottom figure in Figure 2 8 5 and separates the extra envelope By this the multi fed envelope is returned to the envelope feeder and is not fed to the print er Figure 2 8 5 The envelope feeder has function to detect multiple envelopes feed by sensing the up and down motion of the upper feed...

Page 105: ...C Paper Jam Detection The paper jam detection when the envelope is picked up from the envelope feeder and fed to the printer is the same as that of the printer See page 2 48 for details 2 67 CHAPTER 2 ...

Page 106: ...ter The duplexing unit driver drives the solenoid motors and fan according to the duplexing unit command and the duplexing unit pick up command sent from the engine controller The duplexing unit also sends back the status of the duplexing unit to the engine controller The printer supplies 24VDC to the duplexing unit The duplexing unit driver generates 5V for the ICs based on this 24V The flow of i...

Page 107: ...g unit when L J707 1 2 3 FM701 J719 1 2 3 J718 3 2 1 F ON F LOCK J702 1 2 3 4 Duplex feed motor M702 FNT A FNT A FNT B FNT B Motor rotation control signals J701 1 2 3 4 Reversing motor M701 INT A INT A INT B INT B Duplexing unit pick up sensor PS701 J713 3 1 2 24VA J706 2 4 3 PICK SNS L when the sensor detects paper Face up sensor PS702 J714 3 1 2 24VA J705 4 6 5 FU SNS L when the face up delivery...

Page 108: ...ller changes the feeding direction of the paper fed to the duplexing unit The paper is then transported by the oblique roller and feed roller so that its edge contacts with the left panel to correct its skew and is sent to the printer The duplexing unit has two motors reversing motor M701 and duplex feed motor M702 They are stepping motors The rotating directions clockwise and counterclockwise of ...

Page 109: ...AIN MOTOR DRIVE signal MON PS103 PS102 Duplexing unit driver PCB FEED ROLLER CLUTCH DRIVE signal TRCL PS501 TOP OF PAGE DETECTION signal TOP SNS PRE FEED DETECTION signal PRE SNS REVERSED PAPER DETECTION signal INV SNS DUPLEXING UNIT SOLENOID DRIVE signal DUP SOL Feed rollers Pre transfer roller Registration arm M101 PS702 PS701 FACE UP DETECTION signal FU SNS PS703 FIXING UNIT DELIVERY DETECTION ...

Page 110: ...r sensor If the duplexing unit pick up sensor PS701 does not detect the preceding paper the duplex ing unit driver rotates the reversing motor in the reverse direction CCW and the duplex feed motor M702 in the normal direction CW in order to feed the paper to the duplex pick up wait position where the paper reaches about 0 4 seconds after the leading edge of the paper passes the duplexing unit pic...

Page 111: ...p starts If the PS102 does not detect no paper within the prescribed period of time the engine controller turns OFF the feed roller clutch CL101 and sends the feed stop command to the duplexing unit driver to stop feeding the paper in the prescribed period of time after the top of page sensor PS103 detects the paper present condition of the preceding paper When the top of page sensor PS103 detects...

Page 112: ...of duplex pick up 2 Reverse delay jam The CPU assesses a reverse delay jam if the reversed paper sensor PS703 does not detect the leading edge of the paper within the prescribe time about 2 2 sec after the fixing unit delivery sensor 1 PS501 detects the leading edge of the paper 3 Reverse stationary jam The CPU assesses a reverse stationary jam if the reversed paper sensor PS703 does not detect th...

Page 113: ...let 4 Assembly is the reverse of disassembly unless otherwise specified 5 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 6 Do not operate the printer with any parts removed 7 Discharge electrical static from your body by touching the metal frame of the printer prior to installing the PCB in order ...

Page 114: ......

Page 115: ... Right rear cover Right cover Front cover Left cover Top cover unit Operation panel Figure 3 1 1 1 Right rear cover 1 Hold the right rear cover and slide it in the direction of the arrow to remove it Right rear cover Figure 3 1 2 3 1 CHAPTER 3 ...

Page 116: ... claw to remove the rod from the top cover unit Rod Figure 3 1 4 6 Remove the 2 screws 7 Unhook the claw on the right front side of the top cover 8 While pressing down the delivery unit release the 3 claws and remove the top cover unit Screws Claw Claws Delivery unit Top cover unit Figure 3 1 5 9 Disconnect the connector from the operation panel and remove the top cover 3 2 CHAPTER 3 ...

Page 117: ...2 claws and remove the left cover Claws Left cover Figure 3 1 6 4 Face up tray 1 Open the face up tray 2 After pulling out the expansion tray press the shaft on one side of the face up tray to remove the face up tray Face up tray Figure 3 1 7 3 3 CHAPTER 3 ...

Page 118: ...lti pur pose tray 4 Pull down the left side of the multi pur pose tray then slide it to the left side to remove Stopper Multi purpose tray Figure 3 1 9 6 Right cover 1 Remove the right rear cover and top cover unit 2 Unhook the claw and remove the right cover Claw Right cover Figure 3 1 10 Precautions on reassembly Be sure to attach the rod to the hole of the switch button on the right cover when ...

Page 119: ...rection of the arrow to remove it Screws Video controller unit Figure 3 1 12 5 Disconnect the 2 connectors 6 Remove the 7 screws then the cover Screws Cover Figure 3 1 13 7 Disconnect the connector Connector Figure 3 1 14 8 Open the top cover 9 Open the front cover 10 Open the envelope feeder gear cover 11 Remove the 2 screws Screws Figure 3 1 15 3 5 CHAPTER 3 ...

Page 120: ... top cover unit and the left cover 2 Disconnect the connector 3 Unhook the 2 claws and remove the fan filter and cooling fan Connector Claws Fan filter Cooling fan Figure 3 1 17 Precautions on reassembly Install the fan so that the surface with label faces inside and that the cable comes to the left bottom as shown below Figure 3 1 18 3 6 CHAPTER 3 ...

Page 121: ...D Operation panel 1 Removal from the printer 1 Remove the top cover unit 2 Remove the 4 screws and then the operation panel Screws Operation panel Figure 3 1 19 3 7 CHAPTER 3 ...

Page 122: ...1 5 Remove the main motor according to the steps 1 through 3 in the main motor removal procedures on page 3 9 6 Remove the screw and release the ground line from the cable guide 7 Remove the screw and then the front inner cover 8 Disconnect all cables from the cable guide Screw Ground line Screw Front inner cover Cables Figure 3 2 2 9 Remove the fixing unit according to the steps 1 through 5 on pa...

Page 123: ...s Drive unit Figure 3 2 4 B Main Motor 1 Removal from the printer 1 Remove the right rear cover top cover unit and right cover 2 Disconnect the connector 3 Remove the 4 screws then take out the main motor Connector Screws Main motor Figure 3 2 5 3 9 CHAPTER 3 ...

Page 124: ...e noid cable 3 Remove the 9 screws and then the cover Connector Screws Cover Figure 3 2 6 4 Remove the screw then take out the pick up drive unit Screw Pick up drive unit Figure 3 2 7 2 Disassembly and reassembly a Cassette pick up solenoid 1 Remove the screw then take out the cassette pick up solenoid Screw Cassette pick up solenoid Figure 3 2 8 3 10 CHAPTER 3 ...

Page 125: ...on the cassette pick up roller and remove the roller Cassette pick up roller Figure 3 3 1 Precautions on reassembly Be sure to install the spring if you remove the spring B Cassette Feed Roller 1 Removal from the printer 1 Remove the cassette 2 Hold the knob on the cassette feed roller and pull out the roller Cassette feed roller Figure 3 3 2 3 11 CHAPTER 3 ...

Page 126: ... After installing the separation roller be sure to close the cover D Multi purpose Tray Pick up Roller 1 Removal from the printer 1 Open the front cover 2 Remove the envelope entrance cover Envelope entrance cover Figure 3 3 4 3 Remove the blue roller snap with a flat driver 4 Take out the multi purpose tray pick up roller by lifting it Roller snap Multi purpose tray pick up roller Figure 3 3 5 3 ...

Page 127: ...purpose tray pick up roller 5 Disengage the 2 hooks of the separation pad then remove the 3 springs Hooks Springs Figure 3 3 6 6 Pull out the separation pad with its claw passing under the frame boss Claw Boss Separation pad Figure 3 3 7 Precautions on reassembly Be sure that the 3 springs are properly set when installing the separation pad 3 13 CHAPTER 3 ...

Page 128: ...3 3 8 5 Disconnect the connector of the sole noid cable Connector Figure 3 3 9 6 Open the envelope feeder gear cover 7 Remove the 2 screws holding the pick up module and engine module Envelope feeder gear cover Screws Figure 3 3 10 8 Close the envelop feeder gear cover 9 Remove the 5 screws then pull the multi purpose tray pick up unit toward you to remove Screws Multi purpose tray pick up unit Fi...

Page 129: ...ve the 6 screws and then the reg istration unit Screws Registration unit Figure 3 3 13 2 Disassembly and reassembly a Pre transfer roller 1 Remove the 2 springs gear 2 E rings the and 2 bushings then take out the pre transfer roller Springs Gear E rings Bushings Pre transfer roller Figure 3 3 14 b Registration arm 1 Remove the pre transfer roller 2 Remove the E ring and then the bush ing E ring Bu...

Page 130: ...ide plate and undo the spring Bushings Lifters Guide plate Spring Figure 3 3 17 7 Remove the thrust roller then move the rollers on both sides toward inside 8 Undo the 2 parallel pins then remove the rollers and shaft from the registra tion arm Thrust roller Rollers Parallel pins Rollers Shaft Registration arm Figure 3 3 18 Precautions on reassembly Reassemble the registration arm as shown below F...

Page 131: ...crews and then the feed roller unit Connector Screws Feed roller unit Figure 3 3 20 Precautions on reassembly When reassembling the feed roller unit wire the clutch correctly so that the clutch wire does not touch the gears 2 Disassembly and reassembly a Feed roller clutch 1 Release the E ring remove the gear then take out the feed roller clutch E ring Gear Feed roller clutch Figure 3 3 21 3 17 CH...

Page 132: ...to remove it Cable holder Screws Feed guide unit Figure 3 3 22 Precautions on reassembly Install the feed roller as shown below so that the rib comes to the left Rib Feed roller Figure 3 3 23 J Delivery Unit 1 Removal from the printer 1 Remove the top cover unit and left cover 2 Turn the bushing in the direction of the arrow so that the projection part faces upward Bushing Figure 3 3 24 3 Unhook t...

Page 133: ...the figure below Scanner unit Laser unit BD PCB Figure 3 4 1 2 Removal from the printer 1 Remove the cartridge 2 Remove the top cover unit 3 Undo the 4 screws disconnect the 3 connectors and then take out the laser scanner unit Screws Connectors Laser scanner unit Figure 3 4 2 Note Never disassemble the laser scan ner unit as it cannot be adjusted in the field 3 19 CHAPTER 3 1 3 2 ...

Page 134: ...process The cartridge has been designed in such a way that it cannot be disassembled Cleaner blade Primary charging roller Photosensitive drum Developing cylinder Drum protective shutter Figure 3 5 1 a Drum protective shutter Since blank spots and black lines can appear on prints as a result of strong light striking the photosensitive drum it is covered with a protective shutter Do not open the pr...

Page 135: ...er with the hook then lift the right shaft with the hook to remove the transfer charging roller Shafts Transfer charging roller Figure 3 5 2 Precautions on reassembly When installing the transfer charging roller hold the shaft and the bushing of the trans fer charging roller not the rubber portion The bushing on the left should be push ing the spring when installed Figure 3 5 3 3 21 CHAPTER 3 Bush...

Page 136: ...olvents or oil on it Clean it with dry lint free paper that does not produce paper dust Do not use water or solvents 2 Replace the transfer charging roller when you cannot remove the paper dust toner etc with the lint free paper or when it is deformed 3 22 CHAPTER 3 ...

Page 137: ...e roller Fixing unit delivery roller Figure 3 6 1 2 Removal from the printer 1 Turn the power OFF then unplug the power cord 2 Remove the face up tray 3 Unhook the claw and then remove the right bottom cover 4 Unhook the claw and then remove the left bottom cover Claw Right bottom cover Left bottom cover Figure 3 6 2 5 Remove the 2 screws and pull out the fixing unit Screws Fixing unit Figure 3 6 ...

Page 138: ... fixing unit As the fixing unit is hot let it stand for a while after turning the power OFF Remove it after it is cooled 3 Disassembly and reassembly a Fixing film unit 1 Disconnect the connector Connector Figure 3 6 4 2 Disconnect the connector Connector Figure 3 6 5 3 24 CHAPTER 3 ...

Page 139: ...he spring force 4 Unhook the claw Claw Figure 3 6 7 5 Unhook the claw and remove the cover Claw Cover Figure 3 6 8 6 Lift the fixing film unit to remove it Fixing film unit Figure 3 6 9 Note Do not touch the fixing film when replacing the unit Also be careful not to scratch the AC cable with the edges of sheet metal 3 25 CHAPTER 3 ...

Page 140: ...t according to the steps 1 through 6 on page 3 24 2 Lift the pressure roller to remove it Pressure roller Figure 3 6 10 Note When lifting the pressure roller be careful not to deform the leaf spring attached on the side without gear 3 26 CHAPTER 3 ...

Page 141: ...d spring from the left side of the printer Connectors Ground spring Figure 3 7 1 5 Place the printer with left side down 6 Remove the rod from the engine con troller PCB 7 Remove the 4 M4 screws and the 3 M3 screws and pull out the engine con troller PCB Rod Screws M4 Screws M3 Engine controller PCB Figure 3 7 2 8 Disconnect the 11 connectors from the engine controller PCB 9 Undo the screw and the...

Page 142: ...2 connectors 3 Remove the 9 screws and then the cover Connectors Screws Cover Figure 3 7 4 4 Unhook the 2 claws and then remove the cover Claws Cover Figure 3 7 5 5 Disconnect the connector 6 Unhook the 2 claws and take out the paper size detection PCB Connector Claws Paper size detection PCB Figure 3 7 6 3 28 CHAPTER 3 ...

Page 143: ... 3 7 7 3 Remove the 7 screws and then the video controller PCB Screws Video controller PCB Figure 3 7 8 Note The paper size default of the service part video controller PCB is Letter Therefore make sure to change it to A4 by turning ON the printer with the Menu Item and Value keys pressed simultaneously after replacing the 200V model video controller PCB 3 29 CHAPTER 3 ...

Page 144: ...D Adapter PCB 1 Remove the video controller PCB 2 Lift the claw and remove the guide 3 Remove the adapter PCB Claw Guide Adapter PCB Figure 3 7 9 3 30 CHAPTER 3 ...

Page 145: ...ove the spring 2 Removal of the feed roller 1 Remove the cassette 2 Hold the knob of the cassette feed roller and pull out the roller Cassette feed roller Figure 3 8 2 3 Removal of the separation roller 1 Remove the cassette 2 Open the cover then hold the knob of the separation roller and pull out the roller Cover Separation roller Figure 3 8 3 Precautions on reassembly Be sure to close the cover ...

Page 146: ...ure 3 8 4 2 Remove the 10 screws and then the cover Screws Cover Figure 3 8 5 3 Disconnect the connector of the sole noid cable 4 Remove the spring and then the lever 5 Remove the screw then take out the pick up drive unit Connector Spring Lever Screw Pick up drive unit Figure 3 8 6 3 32 CHAPTER 3 ...

Page 147: ...e cassette pick up solenoid Screw Cassette pick up solenoid Figure 3 8 7 6 Removal of paper feeder driver PCB 1 Remove the cover according to the steps 1 and 2 on page 3 32 2 Disconnect the 3 connectors Connectors Figure 3 8 8 3 Unhook the 2 claws and remove the cover Claws Cover Figure 3 8 9 3 33 CHAPTER 3 ...

Page 148: ...4 Remove the screw then take out the paper feeder driver PCB Screw Paper feeder driver PCB Figure 3 8 10 3 34 CHAPTER 3 ...

Page 149: ...Top cover unit 1 Remove the bottom cover 2 Undo the snaps on both sides and remove the weight 3 Unhook the 2 claws and then lift the top cover unit to remove it from the frame 4 Remove the 2 screws and then the ground wire and cable holder 5 Disconnect the connector on the PCB and separate the top cover unit Screws Ground wire Cable holder Connector Top cover unit Figure 3 9 2 3 35 CHAPTER 3 ...

Page 150: ...e the screw and the claw and take out the envelope feeder driver PCB Connectors Sensor lever Screw Envelope feeder driver PCB Figure 3 9 3 3 Removal of envelope pick up sole noid 1 Remove the envelope feeder driver PCB 2 Remove the screw and then the cover Screw Cover Figure 3 9 4 3 Undo the 2 screws then take out the envelope pick up solenoid Screws Envelope pick up solenoid Figure 3 9 5 3 36 CHA...

Page 151: ...PCB 2 Remove the screw and then the cover Screw Cover Figure 3 9 6 3 Remove the E ring the gear then the bushing E ring Gear Figure 3 9 7 4 Remove the E ring the bushing then take out the envelope pick up roller E ring Bushing Envelope pick up roller Figure 3 9 8 3 37 CHAPTER 3 ...

Page 152: ... Remove the E ring the bushing then remove the lower separation roller and the shaft together E ring Bushing Lower separation roller Figure 3 9 10 4 Unhook the claw move the separation roller and remove the parallel pin Then remove the lower separation roller 5 Take out the upper separation roller and the torque limiter from the guide Guide Upper separation roller Torque limiter Figure 3 9 11 3 38...

Page 153: ...and slide the right cover downward to remove it Claws Right cover Figure 3 10 1 2 Removal of the left cover 1 Unhook the 3 claws and slide the left cover downward to remove it Claws Left cover Figure 3 10 2 2 Disconnect the 2 connectors on the left cover 3 39 CHAPTER 3 ...

Page 154: ...he bushing in the direction of the arrow to remove it with the spring 4 Remove the top cover Claw Bushing Spring Top cover Figure 3 10 4 4 Removal of the rear cover 1 Remove the right cover and left cover 2 Unhook the 2 claws and remove the delivery guide Claws Delivery guide Figure 3 10 5 3 Remove the 2 springs then take out the rear cover from the shaft Springs Rear cover Figure 3 10 6 3 40 CHAP...

Page 155: ...nect the connector remove the 2 screws then remove the exhaust fan with the fan cover Connector Screws Fan cover Figure 3 10 8 3 Disconnect the connector and take out the exhaust fan from the fan cover Precautions on reassembly When installing the fan be sure that the arrow on the fan cover and that on the fan point the same direction as shown below Figure 3 10 9 3 41 CHAPTER 3 ...

Page 156: ...eed guide Figure 3 10 10 2 Remove the screw and then lower feed guide then disconnect the connector on the PCB Screw Lower feed guide Figure 3 10 11 3 Disconnect the 6 connectors 4 Unhook the claw and pull out the duplexing unit driver PCB Connectors Claw Duplexing unit driver PCB Figure 3 10 12 3 42 CHAPTER 3 ...

Page 157: ...ever Figure 3 10 13 5 Remove the 2 screws then take out the duplexing unit solenoid Screws Duplexing unit solenoid Figure 3 10 14 8 Removal of the duplex feed motor 1 Remove the right cover left cover and top cover 2 Follow the steps 1 and 2 in the duplex ing unit driver PCB removal procedures to remove the upper feed guide and the lower feed guide 3 Open the rear cover remove the screw then the c...

Page 158: ...ng unit drive unit 8 Remove the E ring and then the 3 screws E ring Swing gear E ring Screws Figure 3 10 18 9 Lightly press the both side panels out ward to unhook the claws then remove the fan unit 10 Remove the lower reversing guide Fan unit Lower reversing guide Figure 3 10 19 11 Disconnect the connector and then dis engage the cable from the cable guide Connector Cable Cable guide Figure 3 10 ...

Page 159: ...llow the steps 1 through 10 in the duplex feed motor removal procedures to remove the lower reversing guide 2 Disconnect the connector and then dis engage the cable from the cable guide Connector Cable Cable guide Figure 3 10 22 3 Remove the 2 screws then take out the reversing motor from the inside Screws Reversing motor Figure 3 10 23 3 45 CHAPTER 3 ...

Page 160: ......

Page 161: ...III PAPER JAMS TROUBLESHOOTING 4 13 IV PAPER TRANSPORT TROUBLESHOOTING 4 19 V MALFUNCTION TROUBLESHOOTING 4 21 VI MALFUNCTION STATUS TROUBLESHOOTING 4 22 VII MEASUREMENT AND ADJUSTMENT 4 31 VIII MAINTENANCE AND SERVICING 4 41 IX LOCATION OF ELECTRICAL PARTS 4 48 ...

Page 162: ......

Page 163: ...cognize the causes and to clear the problem according to the troubleshooting procedure for each malfunction Make sure the following points at the execution of troubleshooting Be 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...

Page 164: ...ly Occurs image defect Note 2 Refer to the item image defects Refer to the item malfunction status troubleshooting END Displays operator call or service call Refer to the item malfunction status troubleshooting Refer to the item malfunction troubleshooting Refer to the item paper transport troubleshooting No No Yes Yes Yes No No Yes No Yes Yes No Displays operator call or service call No Yes ...

Page 165: ...f 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 4 3 CHAPTER 4 ...

Page 166: ...inter is used b The paper is not damp 3 Paper sets a The paper is set to the paper source within the specified volume b The paper is set to the selected paper source correctly 4 EP 52 cartridge sets The cartridge is set 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...

Page 167: ...nt pattern vertical lines shown in Figure 4 1 2 A test pattern can be printed by pressing the test print switch on the back of the printer refer to Figure 1 4 2 once when the photosensitive drum is stationary and the printer is in the STANDBY mode Test pattern can be printed continuously as long as the switch is held down The paper can be picked up only from the built in cassette and the option ca...

Page 168: ... PS DEMO Available only after the Translator Module A5 for Adobe PostScript Level 3 module has been installed Prints the PS demonstration page PRINT PCL DEMO Prints the PCL demonstration page CONTINUOUS TEST Make continuous Test Prints CLEANING PAGE See following page Follow these steps to make a Test Print 1 Press the Go key to set the printer off line The On line indicator should be OFF and PAUS...

Page 169: ...U PERSONALITY AUTO BIDIRECTION ON I O TIMEOUT 15 TEST MENU SHOW PAGE COUNT TEST PRINT PRINT PS FONTS PRINT PCL FONTS PRINT PS DEMO PRINT PCL DEMO CONTINUOUS TEST CLEANING PAGE LANGUAGE MENU LANG ENGLISH RESET MENU RESET PRINTER RESET MENU INSTALLED OPTIONS PS FLASH 4 MB TOTAL MEMORY 4 MB AUTOSENSED PAPER CASSETTE1 A4 PRINTER DETAILS CODE LEVELS CTL 1 25 03 05 98 PCL 1 4 8 PCLXL 1 1 8 98 01 30 PS 1...

Page 170: ...ess the Go key 6 CLEANING PAGE is created at 600dpi 7 The message LOAD CLEANING PAGE IN MANUAL is displayed after delivering paper 4 8 CHAPTER 4 Load this sheet this side down in MPT Læg dette ark med denne side nedad i universalbakke Laad dit vel met deze kant naar beneden in MPT Lattaa tämä arkki tämä puoli alaspäin MPT hen Introduire cette page ce côté vers le bas dans le tiroir polyvalent Lege...

Page 171: ...NING PAGE the printed side down in the multi purpose tray 9 Press the Go key 10 Print blank page onto cleaning page at 1200dpi Note The paper size requested by cleaning page is page size item value in PCL MENU 4 9 CHAPTER 4 ...

Page 172: ...ge I 15 Sharp Black Horizontal Lines Output sharp black horizontal lines I 1 Light Possible causes 1 The image density is not adjusted correctly Action Adjust the image density by operating the external device 2 Open the top cover and remove the EP 52 cartridge while printing Open the drum protec tive shield of the cartridge and check the toner image on the photosensitive drum surface If the toner...

Page 173: ...ses 1 Damaged laser shutter open close projection of the EP 52 cartridge Action Replace the cartridge 2 Laser shutter arm and laser shutter are malfunctioning or damaged Action If they are not moving smoothly or parts are damaged replace the faulty parts 3 Poor contact between the engine controller PCB developing bias contact and the cartridge contact Action Clean the contacts if dirty If the prob...

Page 174: ...e engine controller PCB I 6 Dirt on back of paper Possible causes 1 Dirty paper Action Replace the paper to new one At the same time instruct the appropriate way to store paper to the user 2 Periodic dirt cassette feed roller feed roller pre transfer roller transfer charging roller pres sure roller Action Identify and clean the dirty roller according to Table 4 2 1 on page 4 If dirt can not be rem...

Page 175: ...irty If the problem still remains after cleaning or the con tact s is are deformed or damaged replace the contact s 3 Defective photosensitive drum developing cylinder or toner sensor Action Replace the cartridge 4 Defective engine controller PCB Action Replace the engine controller PCB I 11 White vertical lines Possible causes 1 Circumferential scars on the photosensitive drum Action Replace the ...

Page 176: ... pressure roller 3 Scars or dents on the pressure roller surface Action Replace the pressure roller 4 Scars or foreign materials on the fixing film unit surface Action Replace the fixing film unit 5 Deterioration of thermistor Action Replace the fixing film unit I 14 Image distortion Possible causes 1 Poor contact in the connector on the laser scanner unit Action Reconnect J401 J551 and J201 corre...

Page 177: ...tosensitive drum Developing cylinder Transfer charging roller Fixing film unit Pressure roller Period on image mm Blank spots Dirt on back of paper 24 24 15 8 15 8 12 30 16 14 9 24 20 Poor fixing Problem location About 75 About 75 About 50 About 50 About 38 About 94 About 50 About 47 About 75 About 63 Periods of appearance of dirt blank spots on images ...

Page 178: ...lock J 3 Cassette pick up block J 4 Paper feeder pick up block J 5 Transfer and feed block J 6 Fixing and delivery block J 7 Duplexing feed 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 4 16 CHAPTER 4 5 1 6 2 3 4 7 ...

Page 179: ...pe feeder driver PCB Action Replace the envelope feeder driver PCB 7 Defective engine controller PCB Action Replace the engine controller PCB J 2 Multi purpose tray pick up block Possible causes 1 Curled paper Action Straighten the paper and then instruct the user 2 Defective video controller PCB Action Make a test print from the multi purpose tray If the paper is picked up correctly replace the v...

Page 180: ...ace the cassette pick up solenoid 6 Defective paper size detection PCB Action Replace the paper size detection PCB 7 Defective engine controller PCB Action Replace the engine controller PCB J 4 Paper feeder pick up block Possible causes 1 Defective video controller PCB Action Make a test print from the paper feeder If the paper is picked up correctly replace the video controller PCB 2 Dirty worn o...

Page 181: ...he spring is out of place Action Adjust the arm so that it move smoothly If the spring is out of place attach it or replace it 6 Top of page sensor lever does not move smoothly or is damaged Action Adjust the lever so that it moves smoothly Replace it if damaged 7 Transfer charging roller does not move smoothly Action Replace the busing Replace the gear if worn 8 Damaged feed belt Action Replace t...

Page 182: ...it delivery roller 8 Fixing unit delivery roller does not rotate smoothly Action Check the gears and replace any worn or fractured gears 9 Deflector has projections due to dirt scars or toner Action Clean the deflector 10 Worn face down delivery roller Action Replace the face down delivery roller 11 Face down delivery roller does not rotate smoothly Action Check the gears and replace any worn or f...

Page 183: ...paper dust and dirt 6 Duplexing unit solenoid lever does not move smoothly or is damaged Action Adjust the lever so that it moves smoothly Replace it if damaged 7 Damaged or worn gears Action Replace any damaged or worn gear s 8 Sensor levers do not move smoothly or are damaged Action Adjust the levers so that they move smoothly Replace them if damaged 9 Defective motor Action Replace the motor 10...

Page 184: ...hich is pushing the separation roller 6 Defective torque limiter Action Replace the torque limiter 7 Worn separation pad surface Action Replace the separation pad 8 Spring pushing the separation pad is defective Action Replace the spring which is pushing the separation pad T 2 Wrinkles folded leading edge Possible causes 1 Paper is curled Action Straighten the paper and then instruct the user 2 Op...

Page 185: ...eparation roller are worn unevenly Action Replace the cassette feed roller and the cassette separation roller together 2 The cassette separation claw does not move smoothly or is deformed Action Replace the side guide plate 3 Dirty or worn registration arm Action Clean the registration arm if dirty Replace it if worn 4 Registration arm does not move smoothly or the spring is out of place Action Ad...

Page 186: ... No AC power 2 The overcurrent overvoltage detection circuit activated Action If the problem is not rectified after the power switch is turned OFF and ON again find the cause of activation of the overcurrent overvoltage detection circuit in the engine controller PCB Wait for two minutes or more before turning the power back ON 3 Blown fuse FU2 Action Replace the fuse FU2 on the engine controller P...

Page 187: ...ace the fixing film unit 3 Defective engine controller PCB Action Replace the engine controller PCB M 2 5F 52 ERROR Scanner unit malfunction Possible causes 1 Poor contact in laser scanner unit connectors Action Reconnect the BD PCB connector J551 laser driver PCB connector J501 and scan ner motor connector J401 2 Poor contact in engine controller PCB connector Action Reconnect the engine controll...

Page 188: ... 3 GND If the voltage changes from 0V to about 24V replace the cooling fan 3 Defective engine controller PCB Action Replace the engine controller PCB M 6 5F 60 ERROR Duplex Option error Possible causes 1 Defective duplexing unit connector Action Remove the duplexing unit from the printer and check the connector Replace the connector if any failure is found 2 Defective printer connector Action Chec...

Page 189: ...eder driver PCB 4 Defective engine controller PCB Action Replace the engine controller PCB M 9 6F 61 ERROR Resident ROM checksum error Possible causes 1 Defective firmware ROM DIMM Action Replace the firmware ROM DIMM 2 Defective video controller PCB Action Replace the video controller PCB M 10 6F 63 EEROR Resident DRAM checksum error Possible causes 1 Defective video controller PCB Action Replace...

Page 190: ...ive video controller PCB Action Replace the video controller PCB M 16 ETHERNET OPTION ERROR Possible causes 1 Defective optional ethernet board Action Replace the ethernet board 2 Defective video controller PCB Action Replace the video controller PCB M 17 TOKEN RING OPTION ERROR Possible causes 1 Defective optional token ring board Action Replace the token ring board 2 Defective video controller P...

Page 191: ...ssage appears when it is installed Possible causes 1 Damaged cassette size lever in the cassette Action Replace the lever 2 Defective paper size detection PCB Action Replace the paper size detection PCB 3 Defective engine controller PCB Action Replace the engine controller PCB M 22 PRINTER OPEN message appears when the cover is closed Possible causes 1 Damaged cartridge door lever Action Replace t...

Page 192: ... MPT message appears when the specified sized paper is in the multi purpose tray Possible causes 1 Damaged paper detection lever Action Replace the lever 2 Defective multi purpose tray paper sensor Action Replace the sensor 3 Defective engine controller PCB Action Replace the engine controller PCB M 26 LOAD SIZE IN CASSETTE 2 message appears when the specified sized paper is in the paper feeder Po...

Page 193: ...correct position 2 Damaged top cover sensor lever of the duplexing unit Action Replace the top cover 3 Defective face up tray paper sensor Action Replace the sensor 4 Defective duplexing unit driver PCB Action Replace the duplexing unit driver PCB M 29 PAPER JAM message appears when the paper jam has not occurred and the printer cannot be in READY mode Possible causes 1 Top of page sensor lever do...

Page 194: ... 2 Duplexing unit pick up paper sensor lever does not move smoothly or is damaged Action Set the lever to move smoothly Replace it if damaged 3 Defective reversing paper sensor Action Replace the sensor 4 Defective duplexing unit pick up paper sensor 1 Action Replace the sensor 5 Defective duplexing unit driver PCB Action Replace the duplexing unit driver PCB 6 Defective engine controller PCB Acti...

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Page 196: ...nter with the printed side facing down 3 Select face up delivery 4 Press the test print switch 5 When the leading edge of the print emerges at the face up tray turn OFF the printer Open the top cover and take out the print from the printer about 10 seconds later 6 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 6mm t...

Page 197: ...e replaced due to deformation make the adjustment as shown below When installing the separation guide insert the 1 6mm thickness gauge RY9 0123 between the separation guide and the lower separation roller and fix the separation guide with 1 6mm gap between the separation guide and the lower separation roller Figure 4 7 2 4 35 CHAPTER 4 R Y 9 0 1 2 3 1 6 m m Thickness gauge Separation guide 1 6mm S...

Page 198: ...cover of the envelop feeder 3 Connect the two connectors of the printer driver tester with the printer and the envelop mul tiple feed sensor connector as shown in Figure 4 7 3 4 Insert the 0 7mm thickness gauge RY9 0122 between the upper and lower feed rollers of the envelope feeder from the side where the envelope is to be set 5 Turn ON the printer 6 The Sensor Test LED of the printer driver test...

Page 199: ...This page intentionally left blank 4 37 CHAPTER 4 ...

Page 200: ...print switch to make several test prints 2 Measure the length from the leading edge to the print pattern a in Figure 4 7 4 Measure all the test prints and calculate their average 3 Adjust VR501 so that the calculated value in step 2 becomes 2 0mm The pattern image shifts in the direction in Figure 4 7 4 if VR501 is turned clockwise and in the direction counterclockwise Turning the VR501 one scale ...

Page 201: ...Figure 4 7 5 4 39 CHAPTER 4 0 VR501 CCW CW J72 J53 SW1 J51 J60 J52 J56 J75 J73 J57 J59 J42 J58 J61 VR601 TB63 TB61 TB62 TB64 SW501 VR501 J54 J55 J1 J71 J31 ...

Page 202: ...em during after sales service Notes 1 Some LEDs receive leakage current during normal operation thus glow dimly even when they should be OFF 2 Variable resistors which may be adjusted in after sales service are marked Variable resistors which may not be adjusted in after sales service are marked 1 Engine Controller PCB Figure 4 7 6 4 40 CHAPTER 4 1 14 J72 J53 1 13 1 3 1 2 SW1 OFF ON 1 2 J51 26 25 ...

Page 203: ...ower switch Test print switch SW No SW1 SW501 Function Adjusted at factory Top of page adjustment Adjusted at factory VR No VR201 VR501 VR601 Function 14 J603 1 J604 2 1 1 3 J602 J601 6 1 SW600 SW601 SW602 Paper size detection switches see page 2 40 SW No SW600 SW601 SW602 Function ...

Page 204: ...3 Paper Feeder Driver PCB Figure 4 7 8 Table 4 7 3 4 42 CHAPTER 4 J801 6 1 J802 2 1 1 3 J803 SW801 SW802 SW803 Paper feeder paper size detection switch see page 2 40 SW No SW801 SW802 SW803 Function ...

Page 205: ...arts Table 4 8 1 Note 1 The above values are only estimates and subject to change due to future data 2 2 pages are counted as 1 sheet in case of duplexing C Periodic Service The printer has no parts that require periodic servicing 4 43 CHAPTER 4 Part No Remarks 1 2 3 4 5 6 7 8 9 10 Multi purpose tray pick up roller Separation pad Cassette feed roller Cassette separation roller Torque limiter Multi...

Page 206: ...registration arm unit Clean with lint free paper 4 Transfer guide unit Clean with soft dry flannel cloth 5 Feed belt feed guide unit Clean with lint free paper 6 Fixing unit Fixing unit entrance guide Clean with cloth moistened with MEK 7 Face up deflector Clean with soft dry flannel cloth As a rule the following parts cannot be cleaned For details see Chapter 3 Photosensitive drum Transfer chargi...

Page 207: ...ette separation rollers 3 Feed guide 10 Cassette feed rollers 4 Photosensitive drum 11 Cassette pick up rollers 5 Transfer guide unit 12 Transfer charging roller 6 Pre transfer roller unit 13 Feed belt 7 Multi purpose tray pick up roller 4 45 CHAPTER 4 1 2 1 0 1 2 3 4 5 6 7 8 9 1 3 1 1 ...

Page 208: ...ers Crimper Tweezers Ruler Soldering iron Mallet plastic head Brush Penlight Plastic bottle Solder Desoldering wick Lint free paper Soldering iron Oiler Plastic jar Digital multimeter No Tool name TKN 0001 TKN 0069 CK 0057 CK 0058 CK 0101 CK 0104 CK 0105 CK 0106 CK 0111 CK 0114 CK 0151 CK 0161 CK 0170 CK 0201 CK 0202 CK 0203 CK 0205 CK 0218 CK 0302 CK 0303 CK 0309 CK 0314 CK 0315 CK 0327 CK 0328 C...

Page 209: ... 3 Thickness gauge Thickness gauge Printer driver tester No RY9 0123 RY9 0122 RY9 0124 The thickness gauge is used with the printer driver tester to adjust installation position of the envelope multiple feed sensor of the envelope feeder The printer driver tester is also used independently to check operation of the printer and options Shape A C C RANK Tool No Application remarks Tool name Used for...

Page 210: ...djust position of the envelope multiple feed sensor SW1 and SW2 Operation Mode Select Set operation mode SW3 to SW9 Set various data sent to the printer 4 48 CHAPTER 4 RY9 0124 CANON INC MADE IN JAPAN PRINTER DRIVER TESTER JC1 SW15 1 0 Reset J1 0 0 0 0 0 0 1 1 0 0 1 1 1 1 1 1 0 1 0 1 0 1 0 1 SW13 SW14 SW12 1 0 SW14 SW13 SW12 Display Select 0 0 0 0 0 0 1 1 0 0 1 1 1 1 1 1 0 1 0 1 0 1 0 1 SW4 SW5 SW...

Page 211: ...n the printer enters the standby mode Note Note that the connector of the tester fits into the connector on the wrong side If the LEDs on the tester do not light up when conducting the step 3 reconnect the connec tor the other way around 4 49 CHAPTER 4 LED17 Communication SW15 Reset CANON INC MADE IN JAPAN RY9 0124 Cassette Analog Data Reserved Service Error Operation Error Jam Option Sensor Senso...

Page 212: ...he printer executes the set operations Once SW11 has been turned ON the set contents remain until canceled If multiple settings are to be made set them one by one turning ON SW11 each time To cancel the setting set the corresponding switch back to 0 and then turn ON SW11 or turn OFF the power switch of the ptinter For instance a test print is executed when turning ON SW11 with SW1 and SW2 set to 0...

Page 213: ...canner motor ON Switch resolution 600dpi 0 1200dpi 1 0 0 1 0 0 1 Duplex test print SW5 SW4 SW3 Paper pick up source Cassette Multi purpose tray Paper feeder Envelope feeder Cassette Cassette Cassette SW7 SW6 Test pattern Vertical lines Horizontal lines All white All black SW6 SW5 SW4 SW3 0 1 0 0 0 1 1 1 0 1 0 1 1 0 0 1 0 1 1 0 1 0 1 0 Density Normal mode 0 0 0 0 0 1 1 1 1 1 0 0 0 0 1 0 F1 F5 F9 Ch...

Page 214: ...per delivery sensor 2 Paper present Face down tray paper full sensor Paper present Door open detection switch ON Paper size detection switch Lower ON Multi purpose tray paper sensor Paper present Test print switch ON Paper size detection switch Middle ON Paper size detection switch Upper ON Paper size detection switch Lower ON Paper size detection switch Middle ON Paper size detection switch Upper...

Page 215: ...No toner cartridge Test print Door open Paper jam Sleep Wait No toner warning Face down tray paper full warning BD error Paper size mismatch Paper feed failure Multiple envelopes fed from envelope feeder Scanner failure Main motor failure Fan motor failure Duplex fan motor failure Fixing unit failure Warm up error Fixing unit failure Abnormally low temperature Fixing unit failure Abnormally high t...

Page 216: ...d correctly 5 The paper feeder is not connected correctly 6 The envelope feeder is not connected correctly 7 Monitored value set by VR501 on the engine controller The value is expressed by 8 bit data 256 steps The value of the data becomes 40 40 when the start position of the laser is moved backward forward by 1 mm via VR501 4 54 CHAPTER 4 ...

Page 217: ... Purchase locally Flammable keep away from flame MEK methyl ethyl ketone Cleaning oil and toner stains Purchase locally Highly flammable keep away from flame Lubricating oil Petroleum mineral oil Apply between gear and shaft Tool No CK 8003 100 ml bottle Tellus Oil 68 Shell Lubricating agent Special oil Special solid lubricating material Lithium soap Apply to gears Tool No HY9 0007 20 g tube Molyc...

Page 218: ...IX LOCATION OF ELECTRICAL PARTS A Switches Figure 4 9 1 4 56 CHAPTER 4 SW801 SW802 SW803 SW600 SW601 SW602 SW101 ...

Page 219: ...1 SW600 SW601 SW602 SW801 SW802 SW803 Door open detection switch Paper size detection switch Paper size detection switch Paper size detection switch Paper feeder paper size detection switch Paper feeder paper size detection switch Paper feeder paper size detection switch ...

Page 220: ...B Sensors Figure 4 9 2 4 58 CHAPTER 4 PS104 TH901 PS106 PS501 PS101 PS102 PS103 PS105 PS701 PS703 PS702 ...

Page 221: ...ed sensor Top of page sensor Face down tray paper full sensor Multi purpose tray paper sensor Fixing unit paper delivery sensor 2 Fixing unit paper delivery sensor 1 Duplex pick up paper sensor duplexing unit Face up sensor duplexing unit Reversed paper sensor duplexing unit Paper feeder paper sensor paper feeder Envelope sensor envelope feeder Envelope multiple feed sensor envelope feeder Fixing ...

Page 222: ...C Clutches Solenoids Figure 4 9 4 4 60 CHAPTER 4 SL102 CL101 SL101 SL701 ...

Page 223: ...ol Code Name Clutch Solenoid CL101 SL101 SL102 SL701 SL801 SL901 Feed roller clutch Cassette pick up solenoid Multi purpose tray pick up solenoid Duplexing unit solenoid duplexing unit Paper feeder pick up solenoid paper feeder Envelope pick up solenoid envelope feeder CL ...

Page 224: ...D Motors Others Figure 4 9 6 4 62 CHAPTER 4 FM101 H901 M101 FM701 M702 M701 ...

Page 225: ...l Name of Symbol Code Name Motor Fan motor Fixing heater M101 M701 M702 FM101 FM701 H901 Main motor Reversing motor duplexing unit Duplex feed motor duplexing unit Cooling fan Duplexing unit exhaust fan duplexing unit Fixing heater M ...

Page 226: ...E PCBs Figure 4 9 7 4 64 CHAPTER 4 ...

Page 227: ...sensors solenoids and engine controller PCB and paper size detection Input output process between the printer and the external device and management of various data Relay between the video controller PCB and the network board option Control of solenoids in the paper feeder and performance of various kinds of detection Control of solenoids in the envelope feeder and performance of various kinds of ...

Page 228: ...8 4 66 CHAPTER 4 J401 J134 J551 J501 J113 J141F J142F J143F J137 J133 J132 J58 J114 J53 J60 J59 J301 J107 J106 J73 J52 J129 J135 J54 J1 J131 J103 J102 J31 J71 J50 J41 J42 J112 J111 J57 J56 J51 J125 J126 J127 J128 J2 J301 J101 ...

Page 229: ...Figure 4 9 9 4 67 CHAPTER 4 J604 J602 J601 J104 J105 J72 J110 J603 J6 J7 J1 J8 J5 J4 J3 J2 ...

Page 230: ...Figure 4 9 10 4 68 CHAPTER 4 J911 J912 J913 J902 J903 J901 J801 J802 J803 J813 J811 J812 J719 J718 J717 J715 J716 J714 J702 J704 J711 J712 J705 J701 J703 J707 J706 J713 ...

Page 231: ...APPENDIX I GENERAL TIMING CHART A 1 II GENERAL CIRCUIT DIAGRAM A 3 III LIST OF SIGNALS A 5 IV MESSAGE TABLE A 11 ...

Page 232: ......

Page 233: ...sor PS102 Top of page sensor PS103 Fixing unit paper delivery sensor 1 PS501 Fixing unit paper delivery sensor 2 PS106 Face down tray paper full sensor PS104 HVAC HVDC DBAC DBDC HVT HVT Fixing heater About 0 75 About 0 1 About 0 7 0 5 About 0 27 About 1 2 About 0 27 About 2 2 About 0 1 About 0 15 About 0 18 About 8 8 SL103 SL101 About 2 7 About 0 25 About 1 5 0 5 to 2 About 0 31 About 0 31 About 0...

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Page 235: ... 5 6 7 8 9 10 11 12 13 14 J72 J603 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 13 12 11 10 9 8 7 6 5 4 3 2 1 24VA SEL1 GND SOUT SIN SCLK SL0 SL1 PCKCHK 1stSNS 1stSIZE0 1stSIZE1 1stSIZE2 3 3V HALF MRDY 24VA 24VA MON GND GND 1 2 3 4 5 6 7 8 9 10 5V nSCEN nPCLK nCOMWR nDENB SO SI GND 3 3V GND B 1 B 2 B 3 B 4 B 5 B 6 B 7 B 8 B 9 B 10 1 2 3 4 5 6 7 8 9 10 J301 B 1 B 2 B 3 B 4 B...

Page 236: ...10 IOD12 IOD14 GND IOA2 IOA4 IOA6 IOA8 IOA10 IOA12 IOA14 IOA16 VCC B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 GND WAIT0 W R IORD A23 N C GND IOD1 IOD3 IOD5 IOD7 IOD9 IOD11 IOD13 IOD15 GND IOA3 IOA5 IOA7 IOA9 IOA11 IOA13 IOA15 IOA17 GND VCC INTR1 RESET IOWR IOCS1 N C GND IOD0 IOD2 IOD4 IOD6 N C N C N C N C GND IOA2 IOA4 IOA6 IOA8 IOA10 IOA12 IOA14 IOA...

Page 237: ... O Pulse Printer clock signal J51 9 CBSY I L Command busy signal J51 10 PRINT I L Print signal J51 11 PRFD I L Pre feed signal J51 12 CPRDY I L Controller power ready signal J51 13 GND J51 14 CMD I L Command signal J51 15 CCLK I Pulse Controller clock signal J51 16 GND J51 17 VDO I H Video signal J51 18 GND J51 19 CCRT O L Condition change report signal J51 20 PDLV O L Paper delivery signal J51 21...

Page 238: ... O J56 5 TRCL O L Feed roller clutch drive signal J57 1 PRE DR O J57 2 GND J57 3 PRE SNS I L Pre feed detection signal J57 4 TOP DR O J57 5 GND J57 6 TOP SNS I L Top of page detection signal J58 1 MP DR O J58 2 GND J58 3 MP SNS I H Multi purpose tray paper detection signal J59 1 24VA O J59 2 N C J59 3 24VB I L 24VB supply and door open detection signal J60 1 FUL DR O J60 2 GND J60 3 FUL SNS I H Fa...

Page 239: ...lection signal J72 10 1st SNS I L Cassette paper detection signal J72 11 1st SIZE 0 I L Cassette paper size detection signal J72 12 1st SIZE 1 I L Cassette paper size detection signal J72 13 1st SIZE 2 I L Cassette paper size detection signal J72 14 3 3V O J73 1 SCLK O Pulse Serial clock signal J73 2 SIN I Serial input data J73 3 SOUT O Serial output data J73 4 GND J73 5 SEL2 O L Envelope feeder s...

Page 240: ... 24V O J703 2 DUP SOL O L Duplexing unit solenoid drive signal J704 1 24V O J704 2 SEL0 I L Duplexing unit select signal J704 3 GNO J704 4 SOUT I Serial input data J704 5 SIN O Serial output data J704 6 SCLK I Pulse Serial clock signal J705 1 FU DR O J705 2 GND J705 3 INV SNS I L Reversed paper detection signal J705 4 INV DR O J705 5 GND J705 6 FU SNS I Face up detection signal J706 1 N C J706 2 P...

Page 241: ...al J801 3 GND J801 4 SOUT I Serial input data J801 5 SIN O Serial output data J801 6 SCLK I Pulse Serial clock signal J802 1 24V O J802 2 OPT SOL O L Paper feeder pick up solenoid drive signal J803 1 OPT DR O J803 2 GND J803 3 OPT SNS I L Paper feeder paper detection signal Connector Pin Abbreviation I O Logic Signal name ...

Page 242: ...signal J901 3 GND J901 4 SOUT I Serial input data J901 5 SIN O Serial output data J901 6 SCLK I Pulse Serial clock signal J902 1 24V O J902 2 ENV SOL O L Envelope pick up solenoid drive signal J903 1 MF DR O J903 2 GND J903 3 MF SNS I L Envelope multiple feed detection signal Connector Pin Abbreviation I O Logic Signal name ...

Page 243: ...inting an item from the TEST MENU or when attempting to go off line while the printer is busy A memory overflow has occurred in the optional Flash ROM No action required Press Go key Two options are available 1 Press Shift Enter key to enter the RESET menu and save the information immediately This will terminate the current job deleting temporary fonts macros and buffered data 2 Press Go key and t...

Page 244: ...hile the printer is receiving data or while the printer is in the middle of printing a job Fixing unit malfunction Scanner unit malfunction Main motor malfunction Duplex unit exhaust fan malfunction Cooling fan malfunction Duplex Option error Envelope Option error Feeder Option error Resident ROM checksum error Resident DRAM error NVRAM EEPROM error SRAM in AIR chip error Displays when the COLD RE...

Page 245: ...aper source CASSETTE1 The 500 sheet internal cassette CASSETTE2 The optional paper feeder MPT The multi purpose tray ENV the optional envelope feeder ANY TRAY Any tray that support Letter Legal or A4 size paper size LETTER Letter size paper LEGAL Legal size paper A4 A4 size paper EXEC Executive size paper COM10 Commercial 10 envelope MONARCH Monarch envelope DL DL envelope C5 C5 envelope B5 JIS B5...

Page 246: ... occurred somewhere in the paper path A paper size mismatch has occurred There is a mismatch between the physical paper size and the paper size requested by the job Printer is open This message is displayed when RESET PRINTER is selected in the RESET MENU This message is displayed when the printer is printing the Start Page This message is displayed when a key that is not enabled in the current fu...

Page 247: ...red by PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT CANON INC Printed in Japan REVISION 0 MAY 1998 5 1 Hakusan 7 chome Toride City Ibaraki Pref 302 8501 Japan ...

Page 248: ...PRINTED IN JAPAN IMPRIME AU JAPON 0598 AT 2 50 CANON INC The printing paper contains 70 waste paper ...

Page 249: ...CIRCUIT DIAGRAM REVISION 0 MAY 1998 RY8 8128 000 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON i ...

Page 250: ...made to the products a revised version of the circuit diagrams will be produced However in other cases information will be communicated when necessary by service information Canon Inc Peripheral Products Quality Planning Div Peripheral Products Technical Documentation Dept 5 1 Hakusan 7 chome Toride shi Ibaraki 302 8501 Japan COPYRIGHT C 1998 CANON INC Printed in Japan Imprime au Japon Use of this...

Page 251: ...APON iii CD 1 CD 2 CD 3 CDD1 CDF1 CDE1 A B VIDEO CONTROLLER PCB ASS Y PAPER SIZE DETECTION PCB ASS Y ADAPTER PCB ASS Y DUPLEX UNIT DUPLEX DRIVER PCB ASS Y ENVELOPE FEEDER ENVELOPE FEEDER PCB ASS Y PAPER FEEDER PAPER FEEDER DRIVER PCB ASS Y NUMERICAL INDEX CIRCUIT REVISION CHART CONTENTS ...

Page 252: ...CD 1 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CD 1 VIDEO CONTROLLER PCB ASS Y 1 3 3 2 1 ...

Page 253: ...CD 1 2 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CD 1 VIDEO CONTROLLER PCB ASS Y 2 3 ...

Page 254: ...CD 1 3 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CD 1 VIDEO CONTROLLER PCB ASS Y 3 3 ...

Page 255: ...CD 1 4 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 256: ...CD 1 5 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 257: ...CD 1 6 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 258: ...CD 1 7 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 259: ...CD 1 8 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 260: ...CD 1 9 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 261: ...CD 1 10 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 262: ...CD 1 11 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 263: ...CD 1 12 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 264: ...27 104 1 CAPACITOR 0 1UF 25V C 7 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 8 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 9 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 10 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 11 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 12 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 13 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 14 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 15 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 16 VW4 2027 ...

Page 265: ...PACITOR 0 1UF 25V C 61 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 62 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 63 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 64 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 65 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 66 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 67 VW4 2027 104 1 CAPACITOR 0 1UF 25V C 68 VW4 2635 102 1 CAPACITOR 1000PF 50V C 69 VW4 2234 330 1 CAPACITOR 33PF 50V C 70 VW4 2635 102 1 CA...

Page 266: ... TTL IC15 WA7 0319 000 1 IC SN74LVC245ADB TTL IC16 WA7 0319 000 1 IC SN74LVC245ADB TTL IC17 WA7 0319 000 1 IC SN74LVC245ADB TTL IC18 WA7 0319 000 1 IC SN74LVC245ADB TTL IC19 WA7 0319 000 1 IC SN74LVC245ADB TTL IC20 WA7 0319 000 1 IC SN74LVC245ADB TTL IC21 WA7 0319 000 1 IC SN74LVC245ADB TTL IC22 WA7 0319 000 1 IC SN74LVC245ADB TTL IC23 WA7 0319 000 1 IC SN74LVC245ADB TTL IC24 WA7 0319 000 1 IC SN7...

Page 267: ...10W R 22 VV1 7118 103 1 RESISTOR 10KOHM 1 10W R 23 VV1 7118 103 1 RESISTOR 10KOHM 1 10W R 24 VV1 7118 220 1 RESISTOR 22 OHM 1 10W R 25 VV1 7118 220 1 RESISTOR 22 OHM 1 10W R 26 VV1 7118 330 1 RESISTOR 33 OHM 1 10W R 27 VV1 7118 220 1 RESISTOR 22 OHM 1 10W R 28 VV1 7118 220 1 RESISTOR 22 OHM 1 10W R 29 VV1 7118 220 1 RESISTOR 22 OHM 1 10W R 31 VV1 7118 680 1 RESISTOR 68 OHM 1 10W R 32 VV1 7118 103 ...

Page 268: ...RRAY 22 OHM 0 063W RA 8 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA 9 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA10 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA11 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA12 VR7 0260 103 1 RESISTOR ARRAY 10KOHM 0 032W RA13 VR7 0260 103 1 RESISTOR ARRAY 10KOHM 0 032W RA14 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA15 VR7 0260 220 1 RESISTOR ARRAY 22 ...

Page 269: ... 0260 680 1 RESISTOR 68 OHM 0 063W RA42 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA43 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA44 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA45 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W RA46 VR7 0260 330 1 RESISTOR ARRAY 33 OHM 0 063W RA47 VR7 0260 220 1 RESISTOR ARRAY 22 OHM 0 063W X 1 WK2 5846 000 1 CRYSTAL OSCILLATOR X 2 WK2 5847 000 1 CRYSTAL OSCILL...

Page 270: ...COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 271: ...CD 2 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CD 2 PAPER SIZE DETECTION PCB ASS Y ...

Page 272: ...CD 2 2 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 273: ...P J 602 VS1 1029 003 1 CONNECTOR 3P J 603 VS1 5451 014 1 CONNECTOR 14P J 604 VS1 1029 002 1 CONNECTOR 2P Q 600 WA2 6350 000 1 TRANSISTOR 2SC5060 R 600 VR1 1141 183 1 RESISTOR 18KOHM 1 4W R 601 VR1 1141 331 1 RESISTOR 330 OHM 1 4W R 602 VR1 1141 331 1 RESISTOR 330 OHM 1 4W R 603 VR1 1141 331 1 RESISTOR 330 OHM 1 4W R 604 VR1 1141 331 1 RESISTOR 330 OHM 1 4W SW600 WC2 5284 000 1 SWITCH PUSH SW601 WC...

Page 274: ...CD 3 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CD 3 ADAPTER PCB ASS Y ...

Page 275: ...CD 3 2 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 276: ...0 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON SERIAL NUMBER REMARKS DESCRIPTION Q T Y R A N K PART NUMBER FIGURE KEY NO CD 3 RG1 3801 000 1 ADAPTER PCB ASS Y J 1 WS1 5662 000 1 CONNECTOR J 2 VS1 6291 050 1 CONNECTOR J 3 VS1 6291 050 1 CONNECTOR ...

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Page 278: ...DUPLEX UNIT COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON CDDi ...

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Page 281: ...CDD1 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CDD1 DUPLEX DRIVER PCB ASS Y ...

Page 282: ...CDD1 2 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 283: ...5 8320 821 1 CAPACITOR 820PF 50V C 720 VC5 1720 680 1 CAPACITOR 68PF 50V C 721 VC5 1720 680 1 CAPACITOR 68PF 50V C 722 VC5 1720 680 1 CAPACITOR 68PF 50V D 701 WA1 5410 000 1 DIODE RB441Q D 702 WA1 5410 000 1 DIODE RB441Q D 703 WA1 5410 000 1 DIODE RB441Q D 704 WA1 5410 000 1 DIODE RB441Q D 705 WA1 5410 000 1 DIODE RB441Q D 706 WA1 5410 000 1 DIODE RB441Q D 707 WA1 5410 000 1 DIODE RB441Q D 708 WA1...

Page 284: ...HM 1 4W R 716 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 717 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 718 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 719 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 720 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 721 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 722 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 723 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 724 VR5 5510 221 1 RESISTOR 220 OHM 1 4W R 725...

Page 285: ...W R 751 VR5 5510 103 1 RESISTOR 10KOHM 1 4W R 752 VR5 5510 103 1 RESISTOR 10KOHM 1 4W R 753 VR5 5510 103 1 RESISTOR 10KOHM 1 4W R 754 VR5 5510 103 1 RESISTOR 10KOHM 1 4W R 755 VR7 5870 119 1 RESISTOR 1 1 OHM 1 2W R 756 VR5 5510 102 1 RESISTOR 1KOHM 1 4W R 757 VR7 5870 119 1 RESISTOR 1 1 OHM 1 2W R 758 VR5 5510 102 1 RESISTOR 1KOHM 1 4W R 759 VR7 5870 119 1 RESISTOR 1 1 OHM 1 2W R 760 VR5 5510 102 ...

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Page 287: ...COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON CDFi ENVELOPE FEEDER ...

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Page 290: ...CDF1 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CDF1 ENVELOPE FEEDER PCB ASS Y ...

Page 291: ...CDF1 2 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 292: ...KOHM 1 4W R 902 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 903 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 904 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 905 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 906 VR5 6412 001 1 RESISTOR 2KOHM 1 4W R 907 VR5 6416 201 1 RESISTOR 6 2KOHM 1 4W R 908 VR5 5510 102 1 RESISTOR 1KOHM 1 4W R 909 VR5 5510 271 1 RESISTOR 270 OHM 1 4W R 910 VR5 5510 271 1 RESISTOR 270 OHM 1 4W R 911 V...

Page 293: ...HT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON CDF1 4 SERIAL NUMBER REMARKS DESCRIPTION Q T Y R A N K PART NUMBER FIGURE KEY NO CDF1 X 901 WK2 5250 000 1 CERAMIC OSCILLATOR ...

Page 294: ...COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON CDEi PAPER FEEDER ...

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Page 297: ...CDE1 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE CDE1 PAPER FEEDER DRIVER PCB ASS Y ...

Page 298: ...CDE1 2 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 299: ...ST591J RESET Q 802 WA2 6350 000 1 TRANSISTOR 2SC5060 Q 803 WA4 5277 000 1 IC UPC1093J 1 REGULATOR R 801 VR5 5510 103 1 RESISTOR 10KOHM 1 4W R 802 VR5 5510 911 1 RESISTOR 910 OHM 1 4W R 803 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 804 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 805 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 806 VR5 5510 331 1 RESISTOR 330 OHM 1 4W R 807 VR5 5510 183 1 RESISTOR 18KOHM 1 4W R 8...

Page 300: ...IME AU JAPON CDE1 4 SERIAL NUMBER REMARKS DESCRIPTION Q T Y R A N K PART NUMBER FIGURE KEY NO CDE1 R 827 VR5 5510 103 1 RESISTOR 10KOHM 1 4W SW801 WC2 5284 000 1 SWITCH PUSH SW802 WC2 5284 000 1 SWITCH PUSH SW803 WC2 5284 000 1 SWITCH PUSH X 801 WK2 5774 000 1 CERAMIC OSCILLATOR ...

Page 301: ...R 7 5 3 C D D 1 R 7 5 4 C D E 1 R 8 0 1 C D E 1 R 8 0 9 C D E 1 R 8 1 0 C D E 1 R 8 1 1 C D E 1 R 8 2 5 C D E 1 R 8 2 6 C D E 1 R 8 2 7 C D F 1 R 9 0 1 C D F 1 R 9 1 4 C D F 1 R 9 1 5 C D F 1 R 9 1 6 V R 5 5 5 1 0 1 5 3 C D D 1 R 7 0 1 C D D 1 R 7 0 4 C D D 1 R 7 0 6 V R 5 5 5 1 0 1 8 3 C D E 1 R 8 0 7 C D F 1 R 9 1 3 C D F 1 R 9 2 7 V R 5 5 5 1 0 2 2 1 C D D 1 R 7 0 8 C D D 1 R 7 0 9 C D D 1 R 7 ...

Page 302: ... 2 2 3 4 3 3 0 C D 1 C 6 9 C D 1 C 8 3 V W 4 2 6 3 5 1 0 2 C D 1 C 6 8 C D 1 C 7 0 C D 1 C 7 1 W A 1 0 7 7 7 0 0 0 C D D 1 D 7 0 9 C D D 1 D 7 1 0 C D D 1 D 7 1 1 C D D 1 D 7 1 2 C D D 1 D 7 1 3 C D D 1 D 7 1 4 C D D 1 D 7 1 5 C D D 1 D 7 1 6 W A 1 5 1 1 1 0 0 0 C D 1 D 2 W A 1 5 4 1 0 0 0 0 C D D 1 D 7 0 1 C D D 1 D 7 0 2 C D D 1 D 7 0 3 C D D 1 D 7 0 4 C D D 1 D 7 0 5 C D D 1 D 7 0 6 C D D 1 D 7...

Page 303: ... 03 VIDEO CONTROLLER PCB ASS Y CD 1 7 01 VIDEO CONTROLLER PCB ASS Y CD 1 8 03 VIDEO CONTROLLER PCB ASS Y CD 1 9 01 VIDEO CONTROLLER PCB ASS Y CD 2 2 02 PAPER SIZE DETECTION PCB ASS Y CD 3 2 02 ADAPTER PCB ASS Y CD 1 10 02 VIDEO CONTROLLER PCB ASS Y CD 1 11 03 VIDEO CONTROLLER PCB ASS Y CD 1 12 02 VIDEO CONTROLLER PCB ASS Y CDD1 2 02 DUPLEX DRIVER PCB ASS Y CDF1 2 03 ENVELOPE FEEDER PCB ASS Y CDE1 ...

Page 304: ......

Page 305: ...Prepared by Peripheral Products Quality Planning Div Peripheral Products Technical Documentation Dept CANON INC Printed in Japan REVISION 0 MAY 1998 5 1 Hakusan 7 chome Toride shi Ibaraki 302 8501 Japan ...

Page 306: ...PRINTED IN JAPAN IMPRIME AU JAPON 0698AB0 50 CANON INC ...

Page 307: ...COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON PARTS CATALOG REVISION 0 MAY 1998 RY8 31AS 000 i ...

Page 308: ...nformation per taining to each item Be sure to include in the Parts Request the full item description the item part number and the quantity The parts catalog may be revised if there is significant product modification For minor product modifications a Service Information Bulletin will be issued Canon Inc Peripheral Products Quality Planning Div Peripheral Products Technical Documentation Dept 5 1 ...

Page 309: ... PRINTED IN JAPAN IMPRIME AU JAPON iii NAME REMARKS ORDER No SERIAL No LIST OF ORDER AND SERIAL NUMBERS LBP 1760 100 127V R71 2044 000 JJH00001 220 240V R71 2048 000 KKM00002 DU 52 R73 5004 000 LGS00001 EF 52 R73 5005 000 LGT00001 PF 52 R73 5006 000 LGX00001 ...

Page 310: ...COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON iv ...

Page 311: ...S PANELS ETC TOP COVER ASS Y INTERNAL COMPONENTS 1 INTERNAL COMPONENTS 2 INTERNAL COMPONENTS 3 INTERNAL COMPONENTS 4 INTERNAL COMPONENTS 5 ENGINE CONTROLLER PCB ASS Y DELIVERY DRIVE ASS Y PRINTER DRIVE ASS Y PAPER PICK UP DRIVE ASS Y CASSETTE MULTI PURPOSE PICK UP ASS Y MULTI PURPOSE TRAY ASS Y PAPER FEED ASS Y REGISTRATION ASS Y PAPER FEED GUIDE ASS Y PAPER DELIVERY ASS Y FIXING ASS Y PCB ASS Y L...

Page 312: ...COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON vi ...

Page 313: ...COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON vii ...

Page 314: ...roduced on a special order basis 4 Quantity column The quantity shown in this column is the number of parts used in the Figure However the quantity listed for an assembly indicates the number of that assembly per machine The letters in this column indicate that the quantity of a parts is not specified allowing the use of the number of parts needed for assembly and that the quantity cannot be menti...

Page 315: ......

Page 316: ... ASSEMBLY LOCATION DIAGRAM 1 2 330 PAPER FEED GUIDE ASS Y 325 REGISTRATION ASS Y 310 MULTI PURPOSE PICK UP ASS Y 101 TOP COVER ASS Y 315 MULTI PURPOSE TRAY ASS Y 260 PRINTER DRIVE ASS Y 320 PAPER FEED ASS Y 370 PAPER DELIVERY ASS Y 250 DELIVERY DRIVE ASS Y 110 ENGINE CONTROLLER PCB ASS Y 810 FIXING ASS Y ...

Page 317: ...A 2 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE A ASSEMBLY LOCATION DIAGRAM 2 2 270 PAPER PICK UP DRIVE ASS Y 300 CASSETTE ...

Page 318: ...100 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 100 EXTERNAL COVERS PANELS ETC 6 1 4 5 7 1B 1A 3A 3C 3 3B 2A 2 ...

Page 319: ...1 RG5 4541 000 1 RIGHT COVER ASS Y 1A RB2 2733 000 1 BUTTON SWITCH 1B RB2 2732 000 1 PLATE LOCK 2 RG5 4542 000 1 LEFT COVER ASS Y 2A RB2 2731 000 1 PLATE LOCK 3 RG5 4536 000 1 FRONT COVER ASS Y 3A RB2 2739 000 1 TRAY EXTENSION 3B RB1 8764 000 1 DAMPER 3C RB2 2753 000 2 BLOCK TRAY 4 RB2 2740 000 1 TRAY EXTENSION FACE UP 5 RB2 2749 000 1 TRAY FACE UP 6 RB2 2741 000 1 PANEL RIGHT REAR 7 RB1 8990 000 ...

Page 320: ...101 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 101 TOP COVER ASS Y 5 1 4 3 2 ...

Page 321: ...IMPRIME AU JAPON SERIAL NUMBER REMARKS DESCRIPTION Q T Y R A N K PART NUMBER FIGURE KEY NO 101 RG5 4539 000 1 TOP COVER ASS Y 1 RB2 2737 000 1 COVER UPPER 2 RF5 2850 000 1 DOOR CARTRIDGE 3 RB1 8846 000 1 ARM LOCK TRAY 4 RB1 8847 000 1 SPRING COMPRESSION 5 RB2 2752 000 1 PLATE COVER ...

Page 322: ...PONENTS 1 SW101 B B C C E D J50 J51 J301 J2 J1 J101 J58 J114 J73 J106 J59 J129 J107 H G A F H J56 J52 J125 J127 J301 J E G J F A D SEE FIGURE 810 SEE FIGURE 370 SEE FIGURE 260 SEE FIGURE 310 SEE FIGURE 110 900 M101 SEE FIGURE 315 SEE FIGURE 330 4 9 16 12 16 16 16 18 16 13 13 17 14 15 8A 8B 11 10A 10 16 10B 3 6 7 1 2 8 5 ...

Page 323: ...J51 J301 7 RG5 3709 000 1 MAIN MOTOR CABLE J52 J301 8 RG5 3696 000 1 AC LINE CABLE J1 J101 8A RB1 8833 000 1 HOLDER INLET 8B XA9 0265 000 1 SCREW W WASHER M4X6 9 RB1 8712 000 1 HOLDER CABLE 10 RG5 2645 000 1 FRONT INNER COVER ASS Y 10A WC4 5139 000 1 MICROSWITCH SW101 10B RB1 8694 000 1 PLATE GROUNDING 11 RG5 3700 000 1 MP TRAY PAPER SENSOR CABLE J58 J114 12 XA9 0434 000 4 SCREW TP M3X4 13 XA9 090...

Page 324: ...IME AU JAPON FIGURE 103 INTERNAL COMPONENTS 2 SEE FIGURE 250 J401 J551 J501 J53 J60 J54 J113 J112 J111 J57 J603 J72 A A SEE FIGURE 101 FM101 PS103 PS102 SEE FIGURE 110 900 21 23 20 19 18 10 11 13 12 16 16B 16C 16G 16A 16D 16E 16F 17 14 24 15 26 4 24 25 3 1 7 6 5 8 9 2 22 3B 3A 220 240V ...

Page 325: ...00 1 HOLDER ANTENNA 13 RB1 8695 000 1 SPRING TORSION 14 RG5 3701 000 1 LASER SCANNER UNIT CABLE J53 J401 J501 J551 15 RG5 3702 000 1 PAPER FULL SENSOR CABLE J60 J113 16 RG5 2642 000 1 SENSOR ASS Y 16A WG8 5382 000 1 IC TLP1242 PHOTO INTERRUPTER PS102 J111 16B RB1 8678 000 1 LEVER SENSOR 16C RB1 8680 000 1 SPRING TORSION 16D RB1 8681 000 1 SPRING TORSION 16E RB1 8687 000 1 LEVER SENSOR 16F RG5 3706...

Page 326: ...T C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 104 INTERNAL COMPONENTS 3 SEE FIGURE 325 SEE FIGURE 110 900 SEE FIGURE 320 A A 11 10 10 10 10 10 9 6 7 3 2 1 4 8 9B 9A 9C 5 5A ...

Page 327: ...N 2 RB2 2404 000 1 PLATE COVER 3 XA9 0606 000 1 SCREW M4X10 4 RB1 8716 000 1 GUIDE PROTECT 5 RF5 1867 000 1 GUIDE TRANSFER 5A RB1 8677 000 1 BRUSH STATIC ELIMINATOR 6 RB1 8747 000 1 SPRING LEAF 7 RS5 0911 000 1 GEAR 19T 8 RF5 2496 000 1 PLATE 9 RG5 4283 000 1 TRANSFER ROLLER ASS Y 9A RB1 8713 000 1 BUSHING 9B RS5 0948 000 1 GEAR 18T 9C RB1 8714 000 1 HOOK ROLLER 10 XA9 0870 000 8 SCREW M4X10 11 FA...

Page 328: ... LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 105 INTERNAL COMPONENTS 4 SEE FIGURE 900 SEE FIGURE 270 J110 J602 J604 PS101 2 1 4 4D 3 3A 2 2 4A 4B 4C 4E 4F 4G 5 5A 2 2 6B 6A 4H 4J 501 6 A A C C D D B B 4K J601 J104 J105 ...

Page 329: ...B RB1 8887 000 1 SPRING LEAF 4C XA9 0915 000 1 SCREW M3X6 4D RG5 3711 000 1 PAPER SENSOR CABLE J110 J602 4E RG5 3712 000 1 PAPER FEEDER CABLE J104 J105 J601 4F VS1 6176 006 1 CONNECTOR 6P J104 J105 4G WG8 5362 000 1 IC TLP1241 PHOTO INTERRUPTER PS101 J110 4H RB1 8979 000 1 SPRING GROUNDING 1 4J RB1 8888 000 1 SPRING LEAF 4K RG5 2673 000 1 PAPER SIZE DETECTION PCB ASS Y SEE FIGURE 900 5 RG5 4545 00...

Page 330: ...106 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 106 INTERNAL COMPONENTS 5 7 7 11 10 1 8 2 2A 5 6 9 11 4 3 SEE FIGURE 900 SEE FIGURE 900 A A B B ...

Page 331: ...ERNAL COMPONENTS 5 1 RB2 2762 000 1 COVER SHIELD 2 RF5 2851 000 1 COVER MEMORY 2A RB2 2759 000 1 SCREW M4 3 RB2 2764 000 1 RAIL GUIDE 4 FA9 1449 000 3 SCREW TRUSS HEAD W WASHER 5 RB2 2767 000 1 COVER 6 RB2 2768 000 1 COVER 7 XA9 0258 000 4 SCREW BINDING HEAD MACHINE 8 XA9 0267 000 5 SCREW TP M3X6 9 RB2 2761 000 1 CROSSMEMBER 10 RB1 8703 000 2 SCREW M4X8 3 11 XA9 0870 000 5 SCREW M4X10 ...

Page 332: ... COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 110 ENGINE CONTROLLER PCB ASS Y FU1 FU2 10 6 5 12 11 1 2 501 12 3 13 7 9 8 4 A B B A J131 J43 J31 J102 J103 ...

Page 333: ...8006 000 1 FUSE 250V 8A FU1 220 240V 2 VD7 0214 001 1 FUSE 125V 4A FU2 100 127V VD7 0643 151 1 FUSE 250V 3 15A FU2 220 240V 3 RH7 7098 000 1 THRMISTOR J43 4 RB1 8834 000 1 GUIDE CABLE 5 RH7 8059 000 1 SPACER PCB 6 FA9 1449 000 2 SCREW TRUSS HEAD W WASHER 7 RG5 3698 000 1 DUPLEXING UNIT CABLE J102 J103 8 RB1 8854 000 1 ARM SENSOR 9 RB1 8855 000 1 SPRING TORSION 10 RB1 8709 000 1 GUIDE CABLE 11 RB2 ...

Page 334: ...ON Q T Y R A N K PART NUMBER FIGURE KEY NO FIGURE 250 DELIVERY DRIVE ASS Y RG5 3721 000 1 DELIVERY DRIVE ASS Y 1 RF5 1871 000 1 PLATE DRIVE 2 RS5 0926 000 1 GEAR 14T 14T 3 RS5 0927 000 1 GEAR 31T 4 RS5 0928 000 1 GEAR 30T 5 WG8 5362 000 1 IC TLP1241 PHOTO INTERRUPTER PS104 J113 6 XD9 0135 000 1 RING E 250 J113 PS104 4 5 3 6 2 1 ...

Page 335: ......

Page 336: ...260 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 260 PRINTER DRIVE ASS Y 6 4 2 7 1 8 8A 5 9 18 20 19 19 15 16 14 12 11 10 13 17 3 ...

Page 337: ...M 5 RB1 8755 000 1 CAM 6 RB1 8756 000 1 ROD RELEASE 7 RB1 8757 000 1 HOLDER CABLES 8 RF5 1888 020 1 PLATE SWING ARM 8A RB1 8986 000 1 CHIP SWING 9 RS5 0908 000 1 GEAR 193T 10 RS5 0912 000 1 GEAR 37T 48T 11 RS5 0913 000 1 GEAR 49T 12 RS5 0914 000 1 GEAR 51T 13 RS5 0915 000 1 GEAR 19T 63T 14 RS5 0916 000 1 GEAR 39T 15 RS5 0917 000 1 GEAR 53T 61T 16 RS5 0919 000 1 GEAR 22T 23T 17 RS5 2629 000 1 SPRIN...

Page 338: ...ON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 270 PAPER PICK UP DRIVE ASS Y B A A D D C B C SL101 J604 36 17 13 20 18 11 12 15 10 22 34 27 30 31 24 33 25 28 23 29 29A 35 21 16 19 32 14 2 8 1 2 5 6 4 7 31 37 3 9 26 26 ...

Page 339: ...1T 13 RS5 0932 000 1 GEAR 23T 27T 14 RS5 0933 000 1 GEAR 27T 15 RS5 0934 000 1 GEAR 49T 16 RS5 0935 000 1 GEAR 31T 39T 17 RS5 0936 000 1 GEAR 31T 18 RS5 0937 000 1 GEAR 18T 19 RS5 0938 000 1 GEAR 53T 20 RS5 0939 000 1 GEAR 14T 18T 21 RS5 0940 000 1 GEAR 20T 22 RS5 0941 000 1 GEAR 29T 23 RS5 1293 000 1 BUSHING 24 RS5 2632 000 1 SPRING TENSION 25 RS5 2633 000 1 SPRING COMPRESSION 26 XA9 0870 000 6 S...

Page 340: ...N INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 300 CASSETTE A A 2 8 3 6 5 4 7 9 1 26 2A 2C 2B 25C 27A 23B 23D 23A 23C 23 25B 25D 25A 25 27 15 12 14 17 18 20 22 11 10 14 13 19 21 24 24 16 27C 27D 27B ...

Page 341: ... 000 1 ARM LIFTER RIGHT 14 RB1 8973 000 2 SPRING TORSION 15 RB1 8970 000 1 GEAR 20T 16 RB1 8946 000 1 BUSHING 17 RB1 8972 000 1 SPRING LEAF 18 RF5 2490 000 1 ROLLER 19 RF5 2489 000 1 HOLDER 20 RB1 8974 000 1 LIMITER TORQUE 21 RB1 8956 000 1 STOPPER REAR 22 RB1 8966 000 1 ARM SENSOR 23 RG5 4546 000 1 CASSETTE FRONT COVER ASS Y 23A RB1 8967 000 1 HOLDER BLOCK 23B RB1 8968 000 1 SHAFT SENSOR ARM 23C ...

Page 342: ...ANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 310 MULTI PURPOSE PICK UP ASS Y A A B B SL102 J126 PS105 J114 1 9 2 3 33 7 6 4 8 8 16 24 34 22 23 25 21 26 26A 29 20 18 11 10 13 12 30 31 32 27 19 17 27 28 14 15 28 5 ...

Page 343: ...ER SENSOR 13 RB1 8788 000 1 COVER SENSOR LEVER 14 RB1 8789 000 1 COVER SENSOR LEVER 15 RB2 2386 000 1 COVER GEAR ENVELOPE FEEDER 16 RF5 1870 000 1 PLATE PAPER LIFT 17 RF5 1873 000 1 SHAFT PAPER FEED 18 RH7 5172 000 1 SOLENOID SL102 J126 19 RS5 0959 000 1 GEAR 14T 19T 20 RS5 1302 000 1 BUSHING 21 RS5 1303 000 1 BUSHING 22 RS5 2636 000 2 SPRING COMPRESSION 23 RS5 2637 000 1 SPRING COMPRESSION 24 RS5...

Page 344: ... PART NUMBER FIGURE KEY NO FIGURE 315 MULTI PURPOSE TRAY ASS Y RG5 4537 000 1 MULTI PURPOSE TRAY ASS Y 1 RB2 2743 000 1 TRAY MULTI PURPOSE 2 RB1 8767 000 2 RACK 3 RB2 2744 000 1 PLATE PAPER GUIDE RIGHT 4 RB2 2745 000 1 PLATE PAPER GUIDE LEFT 5 RB1 8781 000 1 GEAR 16T 6 XA9 0596 000 2 SCREW M3X6 7 XA9 0591 000 1 SCREW M3X8 315 3 4 1 2 6 7 5 6 2 ...

Page 345: ...0 2 BUSHING 3 RB1 8735 000 1 PLATE SHAFT HOLDER LEFT 4 RB1 8732 000 1 ROLLER FEED 5 RB1 8736 000 1 PLATE SHAFT HOLDER RIGHT 6 RH7 5171 000 1 CLUTCH CL101 J128 7 RS5 0909 000 1 GEAR 31T 8 RS5 1291 000 1 BUSHING 9 RS5 2627 000 2 SPRING TENSION 10 RB1 8745 000 1 GUIDE 11 RB1 8743 000 2 ROLLER 12 RB1 8744 000 1 SHAFT ROLLER 13 RS5 1292 000 1 BUSHING 14 XD9 0136 000 2 RING E 501 XD3 1160 102 2 PIN SPRI...

Page 346: ...GHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 325 REGISTRATION ASS Y A A 6A 6 5 8 4 4 1 9 2 7 2 3 7 25 12 14 19 21 20 19 18 22 23 22 24 24 19 13 11 10 16 17 15 10 15 19 ...

Page 347: ...2414 000 1 SHEET 7 XD9 0135 000 2 RING E 8 RB2 2394 000 1 CAM LIFTER RIGHT 9 RB1 8734 000 1 PLATE SHAFT HOLDER RIGHT 10 RS5 1290 000 2 BUSHING 11 RB2 2395 000 1 SPRING TORSION 12 RB1 8746 020 1 SPRING TORSION 13 RF5 2497 000 1 PLATE GROUNDING 14 RB1 8737 000 1 SHAFT ROLLER 15 RS5 1286 000 2 BUSHING 16 RB1 8731 000 1 ROLLER PRE TRANSFER 17 RS5 0910 000 1 GEAR 12T 30T 18 FA9 1449 000 1 SCREW TRUSS H...

Page 348: ...330 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 330 PAPER FEED GUIDE ASS Y 2 6 3 1 14 7 9 5 8 4 13 11 12 10 ...

Page 349: ...SION 2 RB1 8682 000 1 PLATE PAPER FEED 3 RB1 8668 000 1 BELT PAPER FEED 4 RB1 8672 000 1 COVER CONTACT 5 RB1 8673 000 1 HOLDER ELMINATOR STATIC CHARGE 6 RB1 8674 000 1 SHAFT BELT 7 RB1 8685 000 1 HOLDER TRANSFER SHAFT 8 RB1 8686 000 1 ELMINATOR STATIC CHARGE 9 RB1 8692 000 1 JOINT 10 RB1 8696 000 1 SPRING TORSION 11 RB1 8697 000 1 SPRING COMPRESSION 12 RB1 8701 000 1 SPRING TORSION 13 RF5 2495 000...

Page 350: ...370 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 370 PAPER DELIVERY ASS Y 9D 9A 9C 9B 9 12 10 11 12A 12B 10A 8 5 5 2 6 1 7 4 3 8A 8B ...

Page 351: ...0 4 SPRING COMPRESSION 6 RB2 2408 000 1 LEVER RIGHT 7 XD9 0136 000 1 RING E 8 RG5 2649 000 2 DELIVERY ROLLER ASS Y 8A RB1 8727 000 1 ROLLER 8B RB1 8728 000 1 ROLLER 9 RG5 2650 000 1 DELIVERY UPPER GUIDE ASS Y 9A RB1 2309 000 1 ELIMINATOR STATIC CHARGE 9B RB1 8723 000 1 LEVER SENSOR 9C RB1 8729 000 1 PLATE GROUNDING 9D RB1 8825 000 1 LEVER 10 RG5 2705 000 3 MIDDLE DELIVERY ROLLER ASS Y 10A RB1 8828...

Page 352: ...810 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 810 FIXING ASS Y 1 2 26 35 25 31 15 8 38 5 9 5A 5C 5B 5A 5C 6A 6B 6A 6 ...

Page 353: ...ANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE 810 FIXING ASS Y 2 2 A A C C F F E D D B B E J137 J135 J135 J131 PS106 J132 J133 3 4 7 30 1 2 28 16 20 21 26 26 23 24 22 29 27 34 33 37 36 32 13 18 19 10 17 11 14 12 ...

Page 354: ...BLE 12 RF5 1874 000 1 GUIDE DC CABLE 13 RB1 8811 000 1 CAM DEFLECTOR 14 RB1 8812 000 1 LEVER DELIVERY SENSOR 1 15 RB1 8813 000 1 LEVER DELIVERY SENSOR 2 16 RS5 1310 000 1 BUSHING 17 RS5 0921 000 1 GEAR 33T 18 RS5 0922 000 1 GEAR 34T 19 RS5 0923 000 1 GEAR 16T 18T 20 RS5 0924 000 1 GEAR 21T 21 RS5 0925 000 1 GEAR 26T 22 RS5 1295 000 1 BUSHING 23 RS5 1296 000 1 BUSHING 24 RS5 1297 000 1 BUSHING 25 R...

Page 355: ...K PART NUMBER FIGURE KEY NO FIGURE 900 PCB ASS Y LOCATION DIAGRAM NPN RF PCB ASS Y LOCATION DIAGRAM 1 RG5 4547 000 1 VIDEO CONTROLLER PCB ASS Y 2 RG1 3801 000 1 ADAPTER PCB ASS Y 3 RG5 3693 040 1 ENGINE CONTROLLER PCB ASS Y 100 127V RG5 3694 040 1 ENGINE CONTROLLER PCB ASS Y 220 240V 4 RG5 2673 000 1 PAPER SIZE DETECTION PCB ASS Y 900 1 2 3 4 ...

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Page 357: ...Di COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON DUPLEX UNIT R73 5004 ...

Page 358: ......

Page 359: ......

Page 360: ...E AU JAPON FIGURE D10 INTERNAL COMPONENTS 1 J719 J719 J718 FM701 J716 J715 J717 J718 J707 PS703 J714 J704 J711 J712 PS702 J705 J715 J714 SEE FIGURE D90 16 16A 18 2 2 15 4 501 13 12 14 501 11 10 9 8 3Q 3P 3N 501 1 3R 5 3K 3L 6 17 3M 19 19 7 3S 3 3B 3A 3H 3G 3C 3D 3J 3E 3F C A B D C B A D ...

Page 361: ...WG8 5362 000 1 IC TLP1241 PHOTO INTERRUPTER PS702 J714 3N RB1 9062 000 4 RETAINER ROLLER 3P RB1 9055 000 4 ROLLER 3Q RB1 9082 000 2 SHAFT ROLLER 3R VS1 5352 003 1 CONNECTOR 3P J718 J719 3S WG8 5362 000 1 IC TLP1241 PHOTO INTERRUPTER PS703 J717 4 RG5 3837 000 1 DUPLEX CONNECTION CABLE J704 J711 J712 5 RG5 3835 000 1 FAN MOTOR CABLE J707 J718 6 RG5 3833 000 1 REVERSE FACE UP SENSOR CABLE J705 J714 J...

Page 362: ...3 SL701 J703 M701 J701 M702 J702 J706 502 502 32 502 501 29 30 31 28 19 502 17 18 18A 502 27 502 26 501 23 16 503 504 25 502 24 503 22 13 21 8 35 502 9 10 9 34 27 18A 18 503 503 503 11 14 38 33 12C 12D 12E 12F 12A 12F 12A 12M 12M 12M 12B 20 12J 12K 12L 2 37 5 6 7 3 15 505 4 36 12G 12H 12F 12 12N SEE FIGURE D90 37 1 C C B B A A F F E E D D ...

Page 363: ...HING 12G RS5 1298 000 2 BUSHING 12H RF5 1879 000 2 ROLLER PAPER FEED 12J RB1 9078 000 1 BRUSH STATIC CHARGE ELIMINATOR 12K RB1 9079 000 1 PLATE GROUNDING 12L XA9 0134 000 1 NUT PUSH 12M XD2 1100 322 3 RING E 12N XD2 1100 502 1 RING E 13 RH7 1366 000 1 MOTOR STEPPING DC24V M701 J701 14 RB1 9084 000 1 STATIC CHARGE ELIMINATOR 15 RB2 3659 000 1 PLATE GROUNDING 16 RS5 6239 000 1 WASHER WAVE 17 RB1 905...

Page 364: ... T Y R A N K PART NUMBER FIGURE KEY NO D11 36 RG5 3836 000 1 DUPLEX PICK UP SENSOR CABLE J706 J713 37 XA9 0547 000 6 SCREW TP M3X6 38 XA9 0957 000 3 SCREW TP M3X4 501 XD2 1100 322 2 RING E 502 XD2 1100 502 8 RING E 503 XB6 7300 607 11 SCREW TP M3X6 504 XB1 2300 407 2 SCREW MACH TRUSS HEAD M3X4 505 XB2 6300 807 1 SCREW W WASHER M3X8 ...

Page 365: ...760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON SERIAL NUMBER REMARKS DESCRIPTION Q T Y R A N K PART NUMBER FIGURE KEY NO FIGURE D90 PCB ASS Y LOCATION DIAGRAM NPN RF PCB ASS Y LOCATION DIAGRAM 1 RG5 3832 000 1 DUPLEX DRIVER PCB ASS Y D90 1 ...

Page 366: ......

Page 367: ...Fi COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON ENVELOPE FEEDER R73 5005 ...

Page 368: ......

Page 369: ......

Page 370: ...INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE F10 EXTERNAL COVERS PANELS ETC J911 J912 TO FIGURE F12 8D 8B 8C 8A 8 9 11 11A 11B 2 10 10A 1 503 504 11C 11E 11F 11D 7 3 12 502 505 13 6 502 505 13 501 4 5 ...

Page 371: ... GUIDE LEFT 8B RB2 3836 000 1 LEVER RELEASE 8C RB1 9121 000 1 PLATE SUPPORT 8D XB4 7400 806 1 SCREW TAPPING TRUSS HEAD M4X8 9 RF5 2799 000 1 WEIGHT 10 RF5 2800 000 1 ARM WEIGHT 10A RS6 8154 000 1 LABEL TRAY 11 RG5 4551 000 1 TOP COVER ASS Y 11A RB2 3829 000 1 BUTTON LOCK 11B RB1 9118 000 1 PLATE GUIDE 11C RG5 3831 000 1 ENVELOPE FEEDER CABLE J901 J911 J912 11D VS1 6174 006 1 CONNECTOR 6P 11E WE8 5...

Page 372: ...760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE F11 INTERNAL COMPONENTS 1 B C A B A C 14 22 20 21 501 1 501 1 501 1 7 4 11 501 501 10 501 9 8 23 23 23 19 16 17 15 18 6 5 3 12 503 13 2 502 28 27 504 29 32 30 31 26 24 25 PS902 J913 J903 ...

Page 373: ...T PAPER FEED 14 RS5 2654 000 1 SPRING COMPRESSION 15 RA2 1582 030 1 LIMITER TORQUE 16 RB1 9108 000 1 HOLDER SEPARATION 17 RF1 3548 000 1 ROLLER SEPARATION 18 RF5 2639 000 1 SHAFT SEPARATION 19 RS5 2655 000 1 SPRING COMPRESSION 20 RB1 9102 000 1 HOLDER 21 RB1 9103 000 1 SHAFT 22 RB1 9104 000 2 ROLLER 23 RS1 1053 000 3 BUSHING 24 WG8 5375 000 1 IC EE SX1235A P1 PHOTO INT PS902 J913 25 RG5 4299 000 1...

Page 374: ...NON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE F12 INTERNAL COMPONENTS 2 1 505 10 19 4 18 503 501 504 6 502 20 501 502 TO FIGURE F10 502 14 502 2 3 7 5 16 21 501 22 8 9 17 15 13 12 11 SEE FIGURE F90 J902 J901 SL901 ...

Page 375: ... 9096 000 1 SHAFT LOCK ARM 9 RB1 9097 000 1 ARM LOCK LEFT 10 RB1 9098 000 1 ARM LOCK RIGHT 11 RS5 0966 000 1 GEAR 18T 27T 12 RS5 0965 000 1 GEAR 26T 13 RB1 9112 000 1 CLAW 14 RB1 9114 000 1 HOLDER PCB 15 RS5 0964 000 1 GEAR 21T 16 RB1 9116 000 1 HOLDER SPRING 17 RS5 0963 000 1 GEAR 15T 24T 18 RS5 0961 000 1 GEAR 15T 19 RS5 0960 000 1 GEAR 20T 20 RS1 1053 000 1 BUSHING 21 RH7 5198 000 1 SOLENOID SL...

Page 376: ...RINTED IN JAPAN IMPRIME AU JAPON SERIAL NUMBER REMARKS DESCRIPTION Q T Y R A N K PART NUMBER FIGURE KEY NO FIGURE F90 PCB ASS Y LOCATION DIAGRAM FIGURE F90 PCB ASS Y LOCATION DIAGRAM 1 NPN RF PCB ASS Y LOCATION DIAGRAM 1 RG5 3830 000 1 ENVELOPE FEEDER PCB ASS Y F90 ...

Page 377: ...Ei COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON PAPER FEEDER R73 5006 ...

Page 378: ......

Page 379: ...EA 1 COPYRIGHT C 1998 CANON INC CANON LBP 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE EA ASSEMBLY LOCATION DIAGRAM E20 PAPER PICK UP DRIVE ASS Y E30 CASSETTE ...

Page 380: ...PAN IMPRIME AU JAPON FIGURE E11 INTERNAL COMPONENTS 2 E E A A B C F F J803 J811 PS801 J813 J812 J802 J801 SEE FIGURE E90 SEE FIGURE E20 3 8 9 3 3 4E 4M 4L 3 3 4C 4B 501 3 1 1E 1F 1H 1C 1F 1A 1J 1J 1B 1B 1D 1G 3 4 4F 4K 4J 4E 10 11 5 7 7A 2A 2B 2B 2B 6 4H 4G 4N 4N 4A 4D D C D B ...

Page 381: ...RG5 4668 000 1 RIGHT FRAME ASS Y 4A XA9 0915 000 1 SCREW M3X6 4B RB1 8886 000 1 COVER PCB 4C RB1 8887 000 1 SPRING LEAF 4D RG5 3821 000 1 PAPER FEEDER DRIVER PCB ASS Y SEE FIGURE E90 4E FA9 2753 000 2 SCREW M4X10 4F RB1 9397 000 1 PLATE GROUNDING 1 4G WG8 5362 000 1 IC TLP1241 PHOTO INTERRUPTER PS801 J813 4H RG5 3711 000 1 PAPER SENSOR CABLE J803 J813 4J RG5 3822 000 1 PAPER FEEDER CABLE J801 J811...

Page 382: ...P 1760 REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE E20 PAPER PICK UP DRIVE ASS Y A A C B C J802 SL801 B D D 17 18 4 6 5 7 9 11 33 12 15 14 13 37 38 36 10 21 19 22 35 23 23 23 25 26 24 27 28 29 30 31 32 8 1 2 3 19 34 36 20 39 16 16 ...

Page 383: ...174 000 1 SOLENOID SL801 J802 14 RB1 8881 000 1 SPRING TORSION 15 RB1 8880 000 1 LEVER 16 XD9 0135 000 2 RING E 17 RS5 0942 000 1 GEAR 16T 18 RS5 0943 000 1 GEAR 31T 19 RS5 1307 000 2 BUSHING 20 RF5 2859 000 1 PLATE DRIVE 21 RB1 8918 000 1 GUIDE 22 RF5 2491 000 1 SHAFT PAPER FEED 23 RB1 8883 000 3 DAMPER 24 RS5 2632 000 1 SPRING TENSION 25 RS5 2633 000 1 SPRING COMPRESSION 26 RB1 8866 000 1 ARM 27...

Page 384: ...REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON FIGURE E30 CASSETTE 3A 4A 4F 4J 4K 4E 4D 4H 4C 4B 4G 3B 3C 3F 3J 3H 3K 3E 3G 3D 10 9 13 8 1F 1G 1E 1J 1D 1B 1H 1A 1K 1 5 1C 2 26 6 7 18 19 11 14 15 17 16 21 20 20 24 22 23 25 3 4 12 12A 12B 12C A A B B ...

Page 385: ...5 2981 000 1 SPRING COMPRESSION 3G RB1 9371 000 1 PLATE LENGTH ADJUSTMENT 3H RB1 8983 000 2 PLATE REAR 3J XD9 0134 000 4 RING E 3K RF5 2793 000 1 PLATE SUPPORT REAR 4 RG5 2694 000 1 LEFT SIDE LIMIT PLATE ASS Y 4A RB1 9375 000 1 LEVER SIDE 4B RB1 9387 000 1 CLICK SIDE 4C RB1 9389 000 1 LEVER SIDE STOPPER 4D RB1 8892 000 1 HOLDER CLAW 4E RB1 9388 000 1 COVER SIDE 4F RS5 2672 000 1 SPRING COMPRESSION...

Page 386: ...ART NUMBER FIGURE KEY NO E30 17 RB1 8974 000 1 LIMITER TORQUE 18 RB1 9380 000 1 LEVER SIZE CAM 19 RB1 8961 000 1 ARM LIFTER LEFT 20 RB1 8973 000 2 SPRING TORSION 21 RB1 8962 000 1 ARM LIFTER RIGHT 22 RB1 8964 000 1 SHAFT SIZE ARM 23 RB1 8963 000 3 ARM SIZE 24 RB1 9381 000 1 PLATE 25 RS5 2621 000 3 SPRING COMPRSSION 26 RB1 8956 000 1 STOPPER REAR ...

Page 387: ... REV 0 MAY 1998 PRINTED IN JAPAN IMPRIME AU JAPON SERIAL NUMBER REMARKS DESCRIPTION Q T Y R A N K PART NUMBER FIGURE KEY NO FIGURE E90 PCB ASS Y LOCATION DIAGRAM 1 NPN RF PCB ASS Y LOCATION DIAGRAM 1 RG5 3821 000 1 PAPER FEEDER DRIVER PCB ASS Y E90 ...

Page 388: ......

Page 389: ... 8 1 7 0 0 0 8 1 0 2 9 R B 1 8 8 1 9 0 0 0 8 1 0 9 R B 1 8 8 2 2 0 0 0 8 1 0 6 B R B 1 8 8 2 3 0 0 0 8 1 0 3 0 R B 1 8 8 2 4 0 0 0 8 1 0 5 C R B 1 8 8 2 5 0 0 0 3 7 0 9 D R B 1 8 8 2 7 0 0 0 1 0 3 2 0 R B 1 8 8 2 8 0 0 0 3 7 0 1 0 A R B 1 8 8 3 3 0 0 0 1 0 2 8 A R B 1 8 8 3 4 0 0 0 1 1 0 4 R B 1 8 8 3 8 0 0 0 1 0 4 1 R B 1 8 8 4 6 0 0 0 1 0 1 3 R B 1 8 8 4 7 0 0 0 1 0 1 4 R B 1 8 8 5 1 0 0 0 1 0 2...

Page 390: ...8 7 4 0 0 0 8 1 0 1 2 R F 5 1 8 7 9 0 0 0 D 1 1 1 2 H R F 5 1 8 8 3 0 0 0 D 1 1 1 8 R F 5 1 8 8 8 0 2 0 2 6 0 8 R F 5 2 4 8 4 0 0 0 2 7 0 2 9 R F 5 2 4 8 5 0 4 0 3 0 0 2 R F 5 2 4 8 9 0 0 0 3 0 0 1 9 E 3 0 2 R F 5 2 4 9 0 0 0 0 2 7 0 3 0 3 0 0 1 8 E 2 0 3 5 E 3 0 1 6 R F 5 2 4 9 1 0 0 0 2 7 0 7 E 2 0 2 2 R F 5 2 4 9 5 0 0 0 3 3 0 1 3 R F 5 2 4 9 6 0 0 0 1 0 4 8 R F 5 2 4 9 7 0 0 0 3 2 5 1 3 R F 5 ...

Page 391: ... 1 0 2 3 R S 5 2 6 3 8 0 0 0 3 1 0 2 4 R S 5 2 6 3 9 0 0 0 3 7 0 5 R S 5 2 6 5 2 0 0 0 1 0 5 5 A E 1 1 2 A R S 5 2 6 5 3 0 0 0 E 1 1 1 G R S 5 2 6 5 4 0 0 0 F 1 1 1 4 R S 5 2 6 5 5 0 0 0 F 1 1 1 9 R S 5 2 6 5 6 0 0 0 F 1 2 3 R S 5 2 6 5 7 0 0 0 F 1 2 1 R S 5 2 6 5 8 0 0 0 E 1 1 1 1 R S 5 2 6 7 2 0 0 0 E 3 0 4 F R S 5 2 6 7 4 0 0 0 E 3 0 4 G R S 5 2 9 8 1 0 0 0 E 3 0 3 F R S 5 2 9 8 2 0 0 0 E 3 0 1...

Page 392: ......

Page 393: ...Prepared by Peripheral Products Quality Planning Div Peripheral Products Technical Documentation Dept CANON INC Printed in Japan REVISION 0 MAY 1998 5 1 Hakusan 7 chome Toride shi Ibaraki 302 8501 Japan ...

Page 394: ...PRINTED IN JAPAN IMPRIME AU JAPON 0698AB2 50 CANON INC The printing paper contains 70 waste paper ...

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