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.../durables and scheduled servicing charts. Chapter 10 Maintenance and Servicing provides tables of maintenance/inspection, standards/ adjustments, and problem identification (image fault/malfunction). It also explains the timing at which exposurerelated mechanisms are operated, and shows how they...may be disassembled/assembled and adjusted. Appendix contains a general timing chart and general circuit diagrams. COPYRIGHT © 1999 CANON INC. INTRODUCTION This service manual has been prepared for the PC800/900 Series machines, providing basic information used for servicing...
.../durables and scheduled servicing charts. Chapter 10 Maintenance and Servicing provides tables of maintenance/inspection, standards/ adjustments, and problem identification (image fault/malfunction). It also explains the timing at which exposurerelated mechanisms are operated, and shows how they...may be disassembled/assembled and adjusted. Appendix contains a general timing chart and general circuit diagrams. COPYRIGHT © 1999 CANON INC. INTRODUCTION This service manual has been prepared for the PC800/900 Series machines, providing basic information used for servicing...
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...Sensors and Solenoids .... 11-79 B. ADF 11-83 F. AE SENSOR CIRCUIT DIAGRAM A-29 I . NOISE FILTER CIRCUIT DIAGRAM A-31 K. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) MAINTENANCE AND INSPECTION 11-3 A. Mechanical 11-5 B. Electrical 11-...VI. A-1 B. DC CONTROLLER CIRCUIT DIAGRAM A-7 E. SOLVENTS/OILS A-36 viii COPYRIGHT © 1999 CANON INC. Making Initial Checks ....... 11-48 B. PCBs 11-82 E. ADF 11-30 C. TROUBLESHOOTING FEEDING PROBLEMS 11-75 A. Switches 11-80 C. GENERAL CIRCUIT DIAGRAM A-5 D. BLANK EXPOSURE (front) CIRCUIT ...
...Sensors and Solenoids .... 11-79 B. ADF 11-83 F. AE SENSOR CIRCUIT DIAGRAM A-29 I . NOISE FILTER CIRCUIT DIAGRAM A-31 K. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) MAINTENANCE AND INSPECTION 11-3 A. Mechanical 11-5 B. Electrical 11-...VI. A-1 B. DC CONTROLLER CIRCUIT DIAGRAM A-7 E. SOLVENTS/OILS A-36 viii COPYRIGHT © 1999 CANON INC. Making Initial Checks ....... 11-48 B. PCBs 11-82 E. ADF 11-30 C. TROUBLESHOOTING FEEDING PROBLEMS 11-75 A. Switches 11-80 C. GENERAL CIRCUIT DIAGRAM A-5 D. BLANK EXPOSURE (front) CIRCUIT ...
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... 10000 to direct sunlight. If you must clean it to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. If you need to rotate it in the direction in a dark place, it will cause no practical problem. The rays of 1500 lux (ordinary lighting) for 5 min and then is left alone for an... use a flannel cloth. Otherwise, the leaf spring used to apply a developing bias to the developing cylinder will be sure to rotate the drum, be affected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Caution: 1. Be sure to a level at which it rotates when making copies. If ...
... 10000 to direct sunlight. If you must clean it to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. If you need to rotate it in the direction in a dark place, it will cause no practical problem. The rays of 1500 lux (ordinary lighting) for 5 min and then is left alone for an... use a flannel cloth. Otherwise, the leaf spring used to apply a developing bias to the developing cylinder will be sure to rotate the drum, be affected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Caution: 1. Be sure to a level at which it rotates when making copies. If ...
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..., the temperature of the fixing lower roller tends to increase because of the increased sheet-to-sheet distance. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 6-7 To prevent possible problems, power to the fixing heater is stopped between Sheets When the copying speed is controlled to 6-cpm copying... Main motor (M1) Registration clutch solenoid (SL2) Delivery sensor (PS3) Fixing heater (H1) Scanner Heater OFF Heater ON Forward Reverse Figure 6-107 COPYRIGHT © 1999 CANON INC. CHAPTER 6 FIXING SYSTEM 5.
..., the temperature of the fixing lower roller tends to increase because of the increased sheet-to-sheet distance. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 6-7 To prevent possible problems, power to the fixing heater is stopped between Sheets When the copying speed is controlled to 6-cpm copying... Main motor (M1) Registration clutch solenoid (SL2) Delivery sensor (PS3) Fixing heater (H1) Scanner Heater OFF Heater ON Forward Reverse Figure 6-107 COPYRIGHT © 1999 CANON INC. CHAPTER 6 FIXING SYSTEM 5.
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...1500 lux (general lighting) for 5 min and then left alone in a dark place for 5 min, it should recover so that it using solvents.) d. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-5 e. Try to excess vibration or impact. Reference: If the photosensitive drum is ...exposed to put it in mind: Caution: 1. Make sure that it will not cause practical problems. Nevertheless, avoid direct sunshine. (The rays of the sun is as strong as possible if such a problem is provided as by opening the shutter for the photosensitive drum cover found at the bottom ...
...1500 lux (general lighting) for 5 min and then left alone in a dark place for 5 min, it should recover so that it using solvents.) d. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-5 e. Try to excess vibration or impact. Reference: If the photosensitive drum is ...exposed to put it in mind: Caution: 1. Make sure that it will not cause practical problems. Nevertheless, avoid direct sunshine. (The rays of the sun is as strong as possible if such a problem is provided as by opening the shutter for the photosensitive drum cover found at the bottom ...
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... Resistors (VR) and Check Pins by PCB .......... 11-84 VII. Mechanical 11-5 B. Making Initial Checks ....... 11-48 B. SELF DIAGNOSIS 11-86 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Switches 11-80 C. TROUBLESHOOTING MALFUNCTIONS 11-61 A. Sensors and Solenoids .... 11-79 B. CHAPTER 11.... Electrical 11-41 III. PCBs 11-82 E. Lamp, Heater, Motor, Etc. 11-81 D. Image Adjustment Basic Procedure 11-3 B. TROUBLESHOOTING IMAGE FAULTS 11-48 A. TROUBLESHOOTING FEEDING PROBLEMS 11-75 A. ADF 11-83 F.
... Resistors (VR) and Check Pins by PCB .......... 11-84 VII. Mechanical 11-5 B. Making Initial Checks ....... 11-48 B. SELF DIAGNOSIS 11-86 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Switches 11-80 C. TROUBLESHOOTING MALFUNCTIONS 11-61 A. Sensors and Solenoids .... 11-79 B. CHAPTER 11.... Electrical 11-41 III. PCBs 11-82 E. Lamp, Heater, Motor, Etc. 11-81 D. Image Adjustment Basic Procedure 11-3 B. TROUBLESHOOTING IMAGE FAULTS 11-48 A. TROUBLESHOOTING FEEDING PROBLEMS 11-75 A. ADF 11-83 F.
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...problem, see the "Cause" column. Is the rated voltage present between J11 and -2? (J1 is found flow charts. Are the front door and delivery cover closed fully, or power is absent. Otherwise, go through the steps: answer the questions under "Checks"; CANON... 4 Checks Is the power plug connected to take the action shown. COPYRIGHT © 1999 CANON INC. Is the rated voltage found at the main source. • If you want to...the checks to use them: AC power is absent at the power outlet? If the problem is "AC power is disconnected, covers are not closed fully? if yes, take ,...
...problem, see the "Cause" column. Is the rated voltage present between J11 and -2? (J1 is found flow charts. Are the front door and delivery cover closed fully, or power is absent. Otherwise, go through the steps: answer the questions under "Checks"; CANON... 4 Checks Is the power plug connected to take the action shown. COPYRIGHT © 1999 CANON INC. Is the rated voltage found at the main source. • If you want to...the checks to use them: AC power is absent at the power outlet? If the problem is "AC power is disconnected, covers are not closed fully? if yes, take ,...
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...CHAPTER 11 TROUBLESHOOTING Is the power 1 plug connected to connect the positive probe of the meter and "-," the negative probe. example: J109-1 (+) ..... J109-2 (-) ...... CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) YES Connect the plug. 2 Are the front door and the delivery cover NO Close... and -2 (-) on the DC controller PCB." Connect the positive probe. YES 3 Is the rated voltage present at the NO Advise the user that the problem power source? Connect the negative probe. 11-2 COPYRIGHT © 1999 CANON INC. is not the copier's.
...CHAPTER 11 TROUBLESHOOTING Is the power 1 plug connected to connect the positive probe of the meter and "-," the negative probe. example: J109-1 (+) ..... J109-2 (-) ...... CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) YES Connect the plug. 2 Are the front door and the delivery cover NO Close... and -2 (-) on the DC controller PCB." Connect the positive probe. YES 3 Is the rated voltage present at the NO Advise the user that the problem power source? Connect the negative probe. 11-2 COPYRIGHT © 1999 CANON INC. is not the copier's.
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... to produce copies with "light" images. 3. Originals with a red tint tend to direct rays of package. 11-48 COPYRIGHT © 1999 CANON INC. Originals which can be kept level. 2. b. a. CHAPTER 11 TROUBLESHOOTING III. Site Environment Check the site against the following considerations: a....IMPRIME AU JAPON) The machine must be subject to the middle index. Checking the Originals Check the originals to find out whether the problem in pencil tend to high temperature or humidity (as rated. b. If any dirt is soiled, clean it with mild detergent solution...
... to produce copies with "light" images. 3. Originals with a red tint tend to direct rays of package. 11-48 COPYRIGHT © 1999 CANON INC. Originals which can be kept level. 2. b. a. CHAPTER 11 TROUBLESHOOTING III. Site Environment Check the site against the following considerations: a....IMPRIME AU JAPON) The machine must be subject to the middle index. Checking the Originals Check the originals to find out whether the problem in pencil tend to high temperature or humidity (as rated. b. If any dirt is soiled, clean it with mild detergent solution...
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... cause feeding faults. The cartridge can occur inside it has become used to the room temperature (one to various problems; e.g., a. Others When a machine is opened before it , leading to two hours). 11-50 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) d. c. CHAPTER 11 TROUBLESHOOTING 9.
... cause feeding faults. The cartridge can occur inside it has become used to the room temperature (one to various problems; e.g., a. Others When a machine is opened before it , leading to two hours). 11-50 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) d. c. CHAPTER 11 TROUBLESHOOTING 9.
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... controller PCB. Replace the electric unit (composite power supply PCB, DC controller PCB). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-53 Is the problem corrected? Inform the user that using non-recommended paper may be in contact with a... 6. 1. Mount the transfer charging roller correctly. 2. The copy paper may not bring the best results. 1. COPYRIGHT © 1999 CANON INC. Replace the cartridge. Is the problem corrected? Try fresh copy paper. Troubleshooting Image Faults 1 The copy is too light. (halftone area only) 2 The copy is too...
... controller PCB. Replace the electric unit (composite power supply PCB, DC controller PCB). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-53 Is the problem corrected? Inform the user that using non-recommended paper may be in contact with a... 6. 1. Mount the transfer charging roller correctly. 2. The copy paper may not bring the best results. 1. COPYRIGHT © 1999 CANON INC. Replace the cartridge. Is the problem corrected? Try fresh copy paper. Troubleshooting Image Faults 1 The copy is too light. (halftone area only) 2 The copy is too...
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... switch or the lever to the drum drive gear). 1. Check the developing assembly. 11-54 COPYRIGHT © 1999 CANON INC. Replace the scanning lamp. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Is the problem corrected? YES 1. Is the problem corrected? Clean the scanning lamp, reflecting plate, lens, and mirror.
... switch or the lever to the drum drive gear). 1. Check the developing assembly. 11-54 COPYRIGHT © 1999 CANON INC. Replace the scanning lamp. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Is the problem corrected? YES 1. Is the problem corrected? Clean the scanning lamp, reflecting plate, lens, and mirror.
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... white spots or white lines? Static eliminator Transfer charging roller 3 Clean the static eliminator. Is the problem corrected? 4 Is there foreign matter or scratches in the middle of toner. YES End. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-55 YES End. YES...
... white spots or white lines? Static eliminator Transfer charging roller 3 Clean the static eliminator. Is the problem corrected? 4 Is there foreign matter or scratches in the middle of toner. YES End. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-55 YES End. YES...
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... use a recommended type. Clean the transfer guide. 2. Clean the pickup guide assembly and the delivery roller. 11-56 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) The paper may be moist. Check the scanning lamp for leakage of...assembly. Check the cartridge for flickering and the presence/ absence of a developing bias. 13 The back of toner. Scanner rail 3 Is the problem noted at the same position on the correct method of the paper soiled? Is the feeding assembly soiled? Clean the feeding assembly. If the...
... use a recommended type. Clean the transfer guide. 2. Clean the pickup guide assembly and the delivery roller. 11-56 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) The paper may be moist. Check the scanning lamp for leakage of...assembly. Check the cartridge for flickering and the presence/ absence of a developing bias. 13 The back of toner. Scanner rail 3 Is the problem noted at the same position on the correct method of the paper soiled? Is the feeding assembly soiled? Clean the feeding assembly. If the...
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... cassette. to use a recommended type. Does the registration clutch solenoid NO 1. COPYRIGHT © 1999 CANON INC. Is the paper of a recommended type? YES Check the registration clutch. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-57 YES/NO NO ...NO Try a recommended type. The control temperature of lines? YES End. (p. 11-6) Is the problem corrected? CHAPTER 11 TROUBLESHOOTING 14 The copy has a fixing fault. Is the problem vertical and, in addition, in the form of the fixing heater is pressed? Does the heater ...
... cassette. to use a recommended type. Does the registration clutch solenoid NO 1. COPYRIGHT © 1999 CANON INC. Is the paper of a recommended type? YES Check the registration clutch. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-57 YES/NO NO ...NO Try a recommended type. The control temperature of lines? YES End. (p. 11-6) Is the problem corrected? CHAPTER 11 TROUBLESHOOTING 14 The copy has a fixing fault. Is the problem vertical and, in addition, in the form of the fixing heater is pressed? Does the heater ...
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.... Does it . Clean the surface of the scanner rail with alcohol. Replace the cartridge. 19 The copy has horizontal fogging. Is the problem corrected? Route the cable correctly. 2. Cause Scanner drive cable Scanner rail Feeding system Cartridge Step 1 2 3 4 Checks Does the cable wind... highvoltage transformer (composite power supply PCB). Does the copy paper spring up or stop around the transfer assembly? Is the problem found at different positions? CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 11 TROUBLESHOOTING 18 The copy has a blurred...
.... Does it . Clean the surface of the scanner rail with alcohol. Replace the cartridge. 19 The copy has horizontal fogging. Is the problem corrected? Route the cable correctly. 2. Cause Scanner drive cable Scanner rail Feeding system Cartridge Step 1 2 3 4 Checks Does the cable wind... highvoltage transformer (composite power supply PCB). Does the copy paper spring up or stop around the transfer assembly? Is the problem found at different positions? CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 11 TROUBLESHOOTING 18 The copy has a blurred...
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... properly? Is the primary charging terminal on the power switch. NO Check the drum drive assembly. Replace the cartridge COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-59 Is the original off and then on the front left... Lens Mirror position Scanner Cartridge Step 1 2 3 4 5 Checks Is the image also too light? Does the drum drive gear rotate normally? Is the problem corrected? Remove the opening seal. Does the cartridge have toner? YES/NO NO YES NO NO Action Set the cartridge in the machine? NO 1. Replace...
... properly? Is the primary charging terminal on the power switch. NO Check the drum drive assembly. Replace the cartridge COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-59 Is the original off and then on the front left... Lens Mirror position Scanner Cartridge Step 1 2 3 4 5 Checks Is the image also too light? Does the drum drive gear rotate normally? Is the problem corrected? Remove the opening seal. Does the cartridge have toner? YES/NO NO YES NO NO Action Set the cartridge in the machine? NO 1. Replace...
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End. Is the problem corrected? 3 Replace the composite power supply PCB. YES/NO NO YES Action Correct the connection of J102 on the DC controller PCB and the wiring to the thermistor (TH1). YES End. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) YES ...? 2 Is there electrical continuity between J207-1 and -2 on the DC controller PCB and the wiring to the fixing heater; Is the problem corrected? Is the problem corrected? 4 Replace the composite power supply PCB. NO Replace the DC controller PCB. if normal, replace the fixing assembly upper unit. ...
End. Is the problem corrected? 3 Replace the composite power supply PCB. YES/NO NO YES Action Correct the connection of J102 on the DC controller PCB and the wiring to the thermistor (TH1). YES End. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) YES ...? 2 Is there electrical continuity between J207-1 and -2 on the DC controller PCB and the wiring to the fixing heater; Is the problem corrected? Is the problem corrected? 4 Replace the composite power supply PCB. NO Replace the DC controller PCB. if normal, replace the fixing assembly upper unit. ...
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...on the composite power supply PCB and the wiring to J103 and J105, respectively, on the DC controller PCB normal? COPYRIGHT © 1999 CANON INC. Is the problem corrected? if normal, replace the fixing upper unit. Is the voltage between J207-1 and -2 on the power switch. Replace the DC ...controller PCB. Is the problem corrected? 4 Replace the composite power supply PCB. YES/NO NO NO YES Action Correct the connection of J102 on the DC controller PCB and...
...on the composite power supply PCB and the wiring to J103 and J105, respectively, on the DC controller PCB normal? COPYRIGHT © 1999 CANON INC. Is the problem corrected? if normal, replace the fixing upper unit. Is the voltage between J207-1 and -2 on the power switch. Replace the DC ...controller PCB. Is the problem corrected? 4 Replace the composite power supply PCB. YES/NO NO NO YES Action Correct the connection of J102 on the DC controller PCB and...
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... supply PCB. Replace the DC controller PCB. 11-64 11-64 COPYRIGHT © 1999 CANON INC. Is the scanner home position sensor (PS1) normal? (For instructions on the DC controller PCB to PS1; CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Replace the composite... power supply PCB. Is the connection between the highvoltage contacts of a copying run? YES End. Is the problem corrected? YES End. then, set the copy count...
... supply PCB. Replace the DC controller PCB. 11-64 11-64 COPYRIGHT © 1999 CANON INC. Is the scanner home position sensor (PS1) normal? (For instructions on the DC controller PCB to PS1; CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Replace the composite... power supply PCB. Is the connection between the highvoltage contacts of a copying run? YES End. Is the problem corrected? YES End. then, set the copy count...
