Chapter 14 Troubleshooting - Canon GP405 Service Manual

TROUBLESHOOTING
I. MAINTENANCE AND
INSPECTION ........................... 14-3
A. Image Basic Adjustment
Procedure ........................... 14-3
B. Points of Scheduled
Servicing ............................. 14-4
II. STANDARDS AND
ADJUSTMENTS....................... 14-5
A. Image Adjustment ............... 14-5
B. Exposure System .............. 14-10
C. Image Formation System .. 14-13
D. Pick-Up/Feeding System .. 14-15
E. Fixing System ................... 14-20
F. Electrical System .............. 14-22
III. TROUBLESHOOTING IMAGE
FAULTS .................................. 14-33
A. Initial Checks ..................... 14-33
B. Sample Image Faults ........ 14-36
C. Troubleshooting Image
Faults ................................. 14-37
IV. TROUBLESHOOTING
MALFUNCTION ..................... 14-56
V. TROUBLESHOOTING
FEEDING PROBLEMS ........ 14-102
A. Paper Jams ..................... 14-102
B. Feeding Faults................. 14-107
VI. ARRANGEMENT AND
FUNCTIONS OF ELECTRICAL
PARTS ................................. 14-108
A. Clutches and Solenoids .. 14-108
B. Motors ............................. 14-110
C. Fan .................................. 14-112
D. Sensors ........................... 14-114
E. Switches and Counters ... 14-116
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 14
F. PCBs ............................... 14-118
G. Side Paper Deck ............. 14-120
H. Variable Resisters,
Light-Emitting Diodes,
and Check Pins by PCB.. 14-124
VII. UPGRADING ....................... 14-131
A. Replacing the DIMM ....... 14-131
B. Downloading ................... 14-134
VIII. SERVICE MODE .................. 14-137
A. Outline ............................. 14-137
B. DISPLAY Control Display
Mode ............................... 14-143
C. I/O Operation Check Mode ... 14-158
D. ADJUST Adjustment Mode .. 14-181
E. FUNCTION Operation
Check Mode .................... 14-189
F. OPTION Settings Mode .. 14-201
G. PG test Print .................... 14-209
H. COUNTER Mode ............ 14-214
I. FEEDER .......................... 14-217
J. SORTER
(finisher, saddle stitcher) . 14-221
IX. SELF DIAGNOSIS ............... 14-223
A. Copier.............................. 14-225
B. DADF............................... 14-231
C. Cassette Feeding
Unit-R1/S1 ...................... 14-232
D. Multi Output Tray-D1 ....... 14-232
E. Finisher-C1 ..................... 14-233
F. Saddle Finisher-C2 ......... 14-235
G. Finisher-E1 ...................... 14-239
H. Paper Deck-B1 ................ 14-241
I. SCSI Interface Board-D1 ... 14-242