Canon
FY8-23AV-000
manual
Image Troubleshooting
Troubleshooting
Specifications
General Timing Chart
Signals/Abbreviations List
Samples of Image Faults
Checking the Feeding Assembly
Adjusting the Intensity VR604
AC power is absent
Service Handbook
Switches
Page 32
CHAPTER 3 IMAGE TROUBLESHOOTING
3-14
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Page 33
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Page 31
Page 33
Contents
Service Handbook
Copyright 1998 Canon INC
Contents
Troubleshooting Malfunctions
Self Diagnosis
Page
Periodical Servicing
Periodically Replaced Parts
Durables
2D Transportation
1D Temperature/Humidity Specifications
Storing Sealed Cartridges
Storing and Handling Unsealed Cartridges
Reference
Image Adjustment Basic Procedure
Pre-Checks
Points to Note
Mechanical
Glass
Adjusting the Intensity VR604
Electrical
2B PC400/FC200
Adjusting the AE Mechanism VR602, VR603
JP607 JP605 JP604 Control panel PCB Screwdriver
Standards and Adjustments
Checking the Documents
Making Initial Checks
Site Environment
Checking the Feeding Assembly
Checking the Lens Array for Dirt
Checking the Transfer Charging Roller
Checking the Copy Paper
Image Troubleshooting
Others
Image Troubleshooting
Samples of Image Faults
Troubleshooting by Image Fault
YES
Copy is foggy overall
Back Replace the cartridge Is the problem corrected?
Copy has white spots cross feed direction
Back of the copy is soiled
Copy has faulty fixing
Copy has poor sharpness focus
Copy has a blurred image
Copy is foggy cross feed direction
Copy is blank
Copy is solid black
Image Troubleshooting
Troubleshooting Malfunctions
Self diagnosis PC400/FC200
Copyboard Does the copying operation start
AC power is absent
Pick-up fails
Scanning lamp fails to go on
Main motor fails to rotate
Copyboard fails to move
Fixing heater fails to operate
Paper feeding normally
At time of jam
Copy Paper Jams
Pick-Up Assembly
Separation/Feeding Assembly
Fixing/Delivery Assembly
Wrinkles
Feeding Faults
Double Feeding
Arrangement and Functions of Electrical Parts
Sensors and Solenoids
Switches
Lamp, Heater, Motor, and Others
Printed Circuit Board PCB
Variable Resistors VR and Check Pins by PCB
DC Controller/DC Power Supply PCB
Control Panel PCB
PC400/FC200
Self Diagnosis
Self Diagnosis
General Timing Chart
PC420/430/FC220 General Timing Chart A4, 2 copies
Signals/Abbreviations List
Signals
Abbreviations
General Circuit Diagram
PC420/430/FC220 General Circuit Diagram
Special Tools Table
Solvents/Oils Table
Specifications
LTR/A4 LGL
NVD
Prepared by
This publication is printed on 70% reprocessed paper
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