Canon CP660 Service Manual page 281

TROUBLESHOOTING
This chapter provides standards/adjustments, instructions on how to troubleshoot
faulty images, malfunctions, and feeding faults, shows the arrangement/functions of elec-
trical parts, and explains service mode and self diagnosis.
I. STANDARDS AND ADJUSTMENTS .....10-1
A. Electrical System .............................10-1
II. TROUBLESHOOTING IMAGE
FAULTS ................................................10-10
A. Making Initial Checks .....................10-10
B. Guide to Test Prints for the Printer
Unit.................................................10-12
C. Troubleshooting Image Faults ........10-14
III. TROUBLESHOOTING
MALFUNCTIONS.................................10-28
A. Error Codes....................................10-29
B. Faults Not Identified by Error
Codes.............................................10-45
IV. TROUBLESHOOTING FEEDING
PROBLEMS .........................................10-58
A. Paper Jams ....................................10-58
B. Faulty Feeding ...............................10-66
V. ARRANGEMENT AND FUNCTIONS OF
ELECTRICAL PARTS ..........................10-69
A. Sensors ..........................................10-70
COPYRIGHT © 1999 CANON INC.
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CHAPTER 10
CANON 660/2100 REV.0 FEB 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
B. Thermistors, Lamps, and Heaters .10-72
C. Clutches and Solenoids .................10-74
D. Fans and Motors ............................10-75
E. PCBs ..............................................10-76
F. Duplexing Unit................................10-78
G. Variable Resistors (VR), Light-Emitting
Diodes, and Check Pins PCB ........10-79
VI. SERVICE MODE..................................10-83
A. Entering the Service Mode ............10-83
B. Menu Structure and Key
Assignment ....................................10-83
C. Main Menu .....................................10-85
VII. TEST PAGE PRINT MODE..................10-93
A. Generating the Test Page ..............10-93
B. Test Pattern ....................................10-93
VIII. SELF DIAGNOSIS ...............................10-99
A. Printer unit......................................10-99