Canon FY8-23AV-000

PRINTED IN JAPAN (IMPRIME AU JAPON) 0198M2.01-1

This publication is printed on

70% reprocessed paper.

Contents

Main IMPORTANT COPYRIGHT 1998 CANON INC. Printed in Japan Imprim au Japon CONTENTS CHAPTER 1 MAINTENANCE AND INSPECTION CHAPTER 2 STANDARDS AND ADJUSTMENTS CHAPTER 3 IMAGE TROUBLESHOOTING CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS Page Page CHAPTER 1 MAINTENANCE AND INSPECTION D. Notes on Cartridge Page Page 1-5 E. Image Adjustment Basic Procedure <Pre-Checks> <Optimum Density Adjustment> 1-6 F. Points to Note CHAPTER 2 STANDARDS AND ADJUSTMENTS A. Mechanical B. Electrical Page Page Page Page CHAPTER 3 IMAGE TROUBLESHOOTING A. Making Initial Checks Page Page Page Page Page 3-7 C. Troubleshooting by Image Fault 3-8 4. The copy has uneven density (darker at front). 5. The copy has uneven density (lighter at front). 6. The copy is foggy (overall). 3-9 3-10 12. The copy has white spots (cross feed direction). 13. The back of the copy is soiled. 3-11 14. The copy has faulty fixing. 3-12 18. The copy has a blurred image. 20. The copy has poor sharpness (focus). 19. The copy is foggy (cross feed direction). 3-13 21. The copy is blank. 22. The copy is solid black. Page 4-1 CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS 2. E0 A. Troubleshooting Malfunctions 1. (self diagnosis; PC400/FC200) 4-2 3. E2 4. E6 4-3 5. E9 6. AC power is absent. 4-4 7. Pick-up fails. 8. The scanning lamp fails to go ON. 4-5 9. The main motor fails to rotate. 10. The copyboard fails to move. 4-6 11. (paper feeding normally) 12. (at time of jam) 13. The fixing heater fails to operate. Page 5-2 1. Pick-Up Assembly 2. Separation/Feeding Assembly 5-3 3. Fixing/Delivery Assembly 5-4 B. Feeding Faults 1. Double Feeding 2. Wrinkles 6-1 CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS A. Sensors and Solenoids Figure 6-1A 6-2 B. Switches Figure 6-1B 6-3 C. Lamp, Heater, Motor, and Others Figure 6-1C 6-4 D. Printed Circuit Board (PCB) Figure 6-1D E. Variable Resistors (VR) and Check Pins by PCB Page CHAPTER 7 SELF DIAGNOSIS Page A-1 APPENDIX A. General Timing Chart PC400/FC200 General Timing Chart (A4, 2 copies) A-2 PC420/430/FC220 General Timing Chart (A4, 2 copies) B. Signals/Abbreviations List Page A-5 100V Color Code M1 C. General Circuit Diagram PC400/FC200 GENERAL CIRCUIT DIAGRAM A-6 PC420/430/FC220 GENERAL CIRCUIT DIAGRAM Color Code drive solenoid Thermal fuse 2 D. Special Tools Table A-8 E. Solvents/Oils Table A-9 F. Specifications A-10