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Canon PC400 Service Handbook

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SERVICE
HANDBOOK
REVISION 0
FY8-23AV-000
JAN.1998
COPYRIGHT © 1998 CANON INC.
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)

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  Summary of Contents for Canon PC400

  • Page 1 SERVICE HANDBOOK REVISION 0 FY8-23AV-000 JAN.1998 COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 2 IMPORTANT THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER.
  • Page 3: Table Of Contents

    CONTENTS CHAPTER 1 MAINTENANCE AND INSPECTION A. Periodically Replaced Parts ..1-1 Storing and Handling Unsealed B. Durables........1-1 Cartridges .......1-3 C. Periodical Servicing .....1-1 E. Image Adjustment Basic Procedure D. Notes on Cartridge.......1-2 .............1-5 Storing Sealed Cartridges..1-2 Points to Note ......1-6 CHAPTER 2 STANDARDS AND ADJUSTMENTS A.
  • Page 4 Pins by PCB.........6-5 C. Lamp, Heater, Motor, and Others DC Controller/DC Power Supply .............6-3 PCB ........6-5 D. Printed Circuit Board (PCB) ..6-4 Control Panel PCB....6-6 COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 5 A. General Timing Chart ....A-1 C. General Circuit Diagram....A-5 B. Signals/Abbreviations List ....A-3 D. Special Tools Table.......A-7 Signals........A-3 E. Solvents/Oils Table.......A-8 Abbreviations......A-4 F. Specifications .......A-9 COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 6 COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 7: Chapter 1 Maintenance And Inspection

    CHAPTER 1 MAINTENANCE AND INSPECTION CHAPTER 1 MAINTENANCE AND INSPECTION A. Periodically Replaced Parts The machine does not have parts which must be replaced on a periodical basis. B. Durables The machine does not have parts which are classified as durables. C.
  • Page 8: Notes On Cartridge

    CHAPTER 1 MAINTENANCE AND INSPECTION D. Notes on Cartridge The cartridge is affected by the environment, regardless of whether it is sealed or unsealed and installed in the machine or otherwise. Although the properties of the cartridge change over time independent of how many copies have been made, the degree of care taken for the cartridge affects how long it may remain stable.
  • Page 9 CHAPTER 1 MAINTENANCE AND INSPECTION 2. Storing and Handling Unsealed Cartridges The photosensitive medium is an organic photoconductor (OPC), which is extremely susceptible to light. Since the cartridge also contains toner, you must be extra careful when storing or handling the cartridge. Make sure the user is aware of this fact and will handle the cartridge with care.
  • Page 10 CHAPTER 1 MAINTENANCE AND INSPECTION 2) Do not place the cartridge upright or upside down; do not shake it. Figure 1-2D 3) Do not force open the shutter for the photosensitive drum cover found at the bottom of the cartridge; do not touch the surface of the photosensitive drum. If the surface of the photosensitive drum has become soiled, wipe it using a flannel cloth coated with toner.
  • Page 11 E. Image Adjustment Basic Procedure <Pre-Checks> <Optimum Density Adjustment> Clean the parts. Scanning system, pick-up/feeding Is gray system, and delivery assembly. scale No. 9 barely noted? End. (See Note 2.) Is the setting of the density correction switch at the middle? Is the Set the switch to the...
  • Page 12 F. Points to Note Optical assembly Copyboard Parts Tools/Solve Remarks Parts Tools/Solve Remarks Lens array Cotton wad Do not use the wire Copyboard alcohol cleaner meant for cover conventional Copyboard alcohol machines. glass Scanning lamp Blower White alcohol Dirt can soil the brush reflecting strip leading edge...
  • Page 13: Chapter 2 Standards And Adjustments

    CHAPTER 2 STANDARDS AND ADJUSTMENTS CHAPTER 2 STANDARDS AND ADJUSTMENTS A. Mechanical 1. Image Leading Edge Non-Image Width (position of white paint on back of glass) The leading edge non-image width must be 2.0 ±1.0 mm when the Test Sheet is copied.
  • Page 14 If you have replaced the scanning lamp unit, intensity sensor, AE sensor, or control panel PCB, you must adjust the three variable resistors on the control panel PCB (one, if PC400/FC200); you must, however, adjust them in the order of VR604, VR602, and VR603 (from intensity to AE).
  • Page 15 CHAPTER 2 STANDARDS AND ADJUSTMENTS C (VR604) Control panel PCB C (R614) Figure 2-2B (PC400/FC200) After Replacing the Scanning Lamp Unit, Intensity Sensor, or AE Sensor (Before Adjustment) • If the scanning lamp has blackened, replace it. • Clean the scanning system (lens array, lamp reflector, lamp).
  • Page 16 CHAPTER 2 STANDARDS AND ADJUSTMENTS 2. Adjusting the AE Mechanism (VR602, VR603) (Before Adjustment) • Obtain a newspaper whose text consists of fine print; do not use a section with photos or large characters. • Make sure you have adjusted light intensity. 1) Switch the copier OFF.
  • Page 17 CHAPTER 2 STANDARDS AND ADJUSTMENTS JP607 JP605 JP604 Control panel PCB Screwdriver Figure 2-4B 6) While keeping the condition in step 5), switch the copier ON. • ‘0’ is displayed, the scanning lamp goes ON, and the main motor starts to rotate. 7) Stop shorting the jumper wires.
  • Page 18 CHAPTER 2 STANDARDS AND ADJUSTMENTS 9) Place about five sheets of blank copy paper. 10) Turn VR603 (AE gain adjustment) until the voltage between the anode side of the diode (D606; it) and JP607 (GND) is 1.8 ±0.1 V; see Figure 2-5B. 11) Switch the copier OFF.
  • Page 19: Chapter 3 Image Troubleshooting

    CHAPTER 3 IMAGE TROUBLESHOOTING CHAPTER 3 IMAGE TROUBLESHOOTING A. Making Initial Checks 1. Site Environment a. The voltage of the power source must be within the specifications. b. Avoid areas subjected to dust or high temperature/humidity (near water faucets, water boilers, humidifiers) and areas near open fires. c.
  • Page 20: Checking The Copyboard Cover And Copyboard Glass For Dirt And Scratches

    Check the feeding assembly for dirt. If dirt is found, clean it with a moist cloth. 7. Checking the Copy Paper a. Check to see if paper of a type recommended by Canon is used. b. Check to make sure that the paper is not moist. Try paper fresh out of package.
  • Page 21 CHAPTER 3 IMAGE TROUBLESHOOTING Go over the following when this is noted. 1) Take out the cartridge from the copier, and rotate it several times. Figure 3-2A 2) Set the cartridge back into the copier, and make copies. a. If the copies are normal, •...
  • Page 22: Others

    CHAPTER 3 IMAGE TROUBLESHOOTING 9. Others In winter, moving a machine from a cold storage room to a warm site can cause condensation inside the machine, leading to various problems. a. Condensation on the scanning system (glass, lens array, reflecting plate) causes dark images.
  • Page 23 CHAPTER 3 IMAGE TROUBLESHOOTING...
  • Page 24: Samples Of Image Faults

    CHAPTER 3 IMAGE TROUBLESHOOTING B. Samples of Image Faults not available...
  • Page 25: Troubleshooting By Image Fault

    CHAPTER 3 IMAGE TROUBLESHOOTING C. Troubleshooting by Image Fault 1. The copy is too light (halftone areas only). 2. The copy is too light (dark areas as well). 3. The copy is too light (extremely light overall). Cause Step Checks YES/NO Remedies Lens, Reflecting plate,...
  • Page 26: The Copy Has Uneven Density (Darker At Front)

    CHAPTER 3 IMAGE TROUBLESHOOTING 4. The copy has uneven density (darker at front). 5. The copy has uneven density (lighter at front). Cause Step Checks YES/NO Remedies Scanner Clean the scanning lamp, End. reflecting plate, and lens. Is the problem corrected? Cartridge, Scanning Press the Copy Start key, and 1.
  • Page 27: The Copy Is Foggy (Paper Feed Direction)

    CHAPTER 3 IMAGE TROUBLESHOOTING 7. The copy is foggy (paper feed direction). 8. The copy has dark lines (paper feed direction, relatively narrow). 9. The copy has dark lines (paper feed direction, thin). Cause Step Checks YES/NO Remedies Scanner Clean the scanning lamp, End.
  • Page 28: The Copy Has White Spots (Cross Feed Direction)

    YES/NO Remedies Copy paper Is the copy paper of a type rec- Try recommended paper; ommended by Canon? if the results are good, advise the user to use recommended paper. Try copy paper fresh out of The copy paper may be package.
  • Page 29: The Copy Has Faulty Fixing

    Checks YES/NO Remedies Copy paper Is the copy paper of a type rec- Try paper of a recom- ommended by Canon? mended type; if the results are good, advise the user to use recom- mended paper. Fixing film Is the faulty fixing vertical and in...
  • Page 30: The Copy Has A Blurred Image

    CHAPTER 3 IMAGE TROUBLESHOOTING 18. The copy has a blurred image. Cause Step Checks YES/NO Remedies Copyboard rail Is the movement of the copy- Replace the copyboard board rail smooth? rail. Copyboard drive Is the movement of the copy- Check the copyboard drive assembly board normal? assembly;...
  • Page 31: The Copy Is Blank

    CHAPTER 3 IMAGE TROUBLESHOOTING 21. The copy is blank. Cause Step Checks YES/NO Remedies Is the cartridge set in the copier? Set the cartridge in the Cartridge copier. Does the cartridge have toner? Replace the cartridge. Has the seal been removed from Remove the seal.
  • Page 32 CHAPTER 3 IMAGE TROUBLESHOOTING 3-14...
  • Page 33: Chapter 4 Troubleshooting Malfunctions

    CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS A. Troubleshooting Malfunctions (self diagnosis; PC400/FC200) Cause Step Checks YES/NO Remedies Switch the copier ON. See ‘E00’. Does the Jam indicator remain See the discussions on On for about 0.5 sec, and does ‘E2’, ‘E6’, and ‘E9’.
  • Page 34 CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS 3. E2 Cause Step Checks YES/NO Remedies Copyboard Does the copying operation start Check the operation with with the copyboard at the left or the copyboard moved to right? the center; advise the user that this is not the copier’s problem Does the copyboard move in See “The copyboard fails...
  • Page 35: Ac Power Is Absent

    Is the power plug connected to Connect the power plug. the copier and the power outlet? Is ‘E’ code (PC420/430/FC220) See ‘E0’. or ‘JAM’ (PC400/FC200) indicated for about 0.5 sec after the power switch is turned ON and does the power turn OFF thereafter?
  • Page 36: Pick-Up Fails

    Does the voltage the registration assembly Registration solenoid between J201-6 (+) and J201-7 and pick-up assembly; if (SL1; PC400/FC200) (-) on the DC controller/DC normal, replace the power supply PCB change to solenoid. about 24 V at pick-up timing?
  • Page 37: The Main Motor Fails To Rotate

    CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS 9. The main motor fails to rotate. Cause Step Checks YES/NO Remedies Main motor (M1) Set the meter to the ‘30VDC’ Replace the main motor. range. Does the voltage DC controller/DC Check the wiring from the between J903-1 (+) and J903-2 power supply PCB motor to the DC controller/...
  • Page 38: The Fixing Heater Fails To Operate

    CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS (paper feeding normally) Cause Step Checks YES/NO Remedies Copy paper Are there pieces of copy paper in Remove the pieces of the delivery assembly or pick-up paper. assembly? Sensor lever Is the movement of the delivery Correct the movement.
  • Page 39: Chapter 5 Troubleshooting Paper Feed Problems

    CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS A. Copy Paper Jams Jams can be classified according to location within the copier: Pick-up assembly Separation/feeding assembly Fixing/delivery assembly The discussions that follow are organized with reference to these assemblies. Figure 5-1A...
  • Page 40: Pick-Up Assembly

    Checks YES/NO Remedies Copy paper Try copy paper of a type Advise the user to use recommended by Canon. recommended paper. Is the problem corrected? Is the copy paper curled or wavy, Replace the copy paper; or otherwise deformed? advise the user on the correct method of storage.
  • Page 41: Fixing/Delivery Assembly

    CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS 3. Fixing/Delivery Assembly Cause Step Checks YES/NO Remedies Separation/Feeding Are the copy image and the Check the separation/ assembly document matched correctly? feeding assembly. Fixing assembly inlet Is the inlet guide soiled with Clean it. guide foreign matter or toner? Delivery sensor lever...
  • Page 42: B. Feeding Faults

    Step Checks YES/NO Remedies Copy paper Try copy paper of a type Advise the user to use recommended by Canon. recommended paper. Separation pad Check the movement of the pick- Check the condition of the up guide plate. separation pad.
  • Page 43: Chapter 6 Arrangement And Functions Of Electrical Parts

    CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS A. Sensors and Solenoids Q902 PD602 PD601 Q901 Q131 Q801 Figure 6-1A Symbol Name Notation Description Photointerrupter Q131 Pick-up assembly paper sensor Q801 Delivery assembly paper sensor Q901 Motor rotation sensor Q902...
  • Page 44: Switches

    CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS B. Switches SW604 SW606 Figure 6-1B Symbol Name Notation Description Switch Top cover switch Delivery assembly door switch Switch SW604 Power switch SW606 Density 3-setting switch...
  • Page 45: Lamp, Heater, Motor, And Others

    CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS C. Lamp, Heater, Motor, and Others Figure 6-1C Symbol Name Notation Description Heater Fixing heater Motor Main motor Thermistor Fixing heater temperature detection Thermal fuse Fixing heater overheating detection...
  • Page 46: Printed Circuit Board (Pcb)

    CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS D. Printed Circuit Board (PCB) Figure 6-1D Ref. Name Description DC controller/DC power supply PCB Controls sequence, supplies DC power, controls scanning lamp ON Control panel PCB Controls/displays copying operation Scanning lamp PCB Scanning lamp (LA1-LA8) Delivery sensor PCB Detects delivery...
  • Page 47: Variable Resistors (Vr) And Check Pins By Pcb

    ......VRs that must not be used in the field..... 1. DC Controller/DC Power Supply PCB J101 J102 (T107) J103 J108 J104 VR103 VR102 VR101 Note: The pin No. in parentheses refers to the PC400/FC200. Figure 6-1E...
  • Page 48: Control Panel Pcb

    2. Control Panel PCB PC420/430/FC220 VR602 VR603 VR604 J611 J601 Figure 6-2E PC400/FC200 VR604 J611 J601 Figure 6-3E Description VR602 Use it to adjust the AE offset (use it only after replacing the scanning lamp unit, intensity sensor, AE sensor, or control panel PCB).
  • Page 49: Chapter 7 Self Diagnosis

    (The PC400/FC200 does not have a copy count display; it indicates an error condition by flashing the Jam indicator.) ‘E6’ is represented by alternating...
  • Page 50 CHAPTER 7 SELF DIAGNOSIS Code Cause Description • Copyboard drive assembly • The copyboard position sensor (Q902) (faulty operation) goes ON when copying operation starts. • Copyboard drive solenoid • The copyboard position sensor (Q902) (SL2; faulty) is ON 0.8 sec after copying operation •...
  • Page 51: General Timing Chart

    APPENDIX A. General Timing Chart PC400/FC200 General Timing Chart (A4, 2 copies) 1 sec Power switch Copy paper inserted Copy paper inserted Sequence STBY INTR COPY LSTR STBY Copyboard CBRV STOP CBFW CBRV CBFW CBRV STOP Main motor (M1) Document position sensor...
  • Page 52 PC420/430/FC220 General Timing Chart (A4, 2 copies) 1 sec Power switch Copy paper inserted Sequence STBY INTR COPY LSTR STBY Copyboard CBRV STOP CBFW CBRV CBFW CBRV STOP Main motor (M1) Document position sensor (Q902) Copyboard drive solenoid (SL2) Scanning lamp (LA1-LA8) Fixing heater (H1) Primary AC bias -240V...
  • Page 53: Signals/Abbreviations List

    APPENDIX B. Signals/Abbreviations List What follows below is a list of signals and abbreviations used in the chapters of the manual and circuit diagrams. The abbreviations within parentheses represent analog signals, which cannot be expressed in terms of ‘1’ or ‘0’. 1.
  • Page 54: Abbreviations

    APPENDIX 2. Abbreviations INTR INITIAL ROTATION LSTR LAST ROTATION CBFW COPYBOARD FORWARD CBRV COPYBOARD REVERSE STBY STANDBY...
  • Page 55: General Circuit Diagram

    C. General Circuit Diagram PC400/FC200 GENERAL CIRCUIT DIAGRAM Delivery sensor Fixing heater temperature sensor Q801 Intensity sensor PD601 J801 J603F J621F J603P J621P Control panel PCB J601 J908P J909P 1 2 3 J908F J909F J906 J906PP J906F J108 JP350 J101...
  • Page 56 PC420/430/FC220 GENERAL CIRCUIT DIAGRAM Fixing heater Delivery sensor temperature sensor Q801 AE sensor Intensity sensor PD602 PD601 J801 J603F J621F J603P J621P Control panel PCB J601 J908P J909P 1 2 3 J908F J909F J906 J906PP J906F J108 JP350 J101 J102 J202 RETURN DC controller/DC power supply PCB...
  • Page 57: Special Tools Table

    APPENDIX D. Special Tools Table What follows below is a table of special tools used for servicing the machine in addition to the standard tools set. Tool name Tool Number Shape Category* Remarks Digital CK-0552 For adjusting the AE multimeter mechanism.
  • Page 58: Solvents/Oils Table

    APPENDIX E. Solvents/Oils Table Name Uses Composition Remarks Alcohol Cleaning: Hydrocarbon (fluorine family) • Do not bring near fire. e.g., glass, plastic, Alcohol • Procure locally. rubber parts; Surface active agent • Isopropyl alcohol may be external covers substituted. Solvent Cleaning: Hydrocarbon •...
  • Page 59: Specifications

    APPENDIX F. Specifications Item PC400/FC200 PC420/430/FC220 Body Portable (w/ grips) Copyboard Moving Light source Tungsten lamp of fuse type Lens Lens array Photosensitive medium OPC (24 dia.) Copying Indirect electrostatic Charging Roller (direct charging) Exposure Slit (moving copyboard) Copy density adjustment...
  • Page 60 APPENDIX Item PC400/FC200 PC420/430/FC220 Temperature 7.5° to 32.5°C/45.5° to 90.5°F Operating Humidity 5% to 85% environment Atmospheric pressure 810.6 hPa to 1013.3 hPa (0.8 to 1 atm) Serial numbers Serial numbers 120V, 60Hz (PC400:WHITE) (PC400:GRAY) (FC220:WHITE) Power supply (PC420:WHITE) 230V, 50Hz...
  • Page 61 Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION CANON INC. Printed in Japan REVISION 0 (JAN. 1998) [23715] 5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan...
  • Page 62 This publication is printed on 70% reprocessed paper. PRINTED IN JAPAN (IMPRIME AU JAPON) 0198M2.01-1...

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Pc420Pc430Fc200Fc220