Table of Contents
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TROUBLESHOOTING
This chapter provides tables of maintenance/inspection, standards/adjustments, and identification of
problems (image fault/malfunction).
I.
MAINTENANCE AND
INSPECTION ....................................11-3
A. Image Adjustment Basic
Procedure....................................11-3
B. Points to Note for Scheduled
Servicing......................................11-4
II.
STANDARDS/ADJUSTMENTS ........11-5
A. Image Adjustment .......................11-5
B. Exposure System ........................11-11
C. Image Formation System ............11-17
D. Pick-Up/Feeding System.............11-24
E. Fixing System..............................11-38
F. Electrical System.........................11-42
III.
IMAGE FAULTS................................11-64
A. Initial Checks ...............................11-64
B. Sample Image Faults ..................11-68
C. Troubleshooting Image Faults.....11-69
IV.
TROUBLESHOOTING
MALFUNCTIONS .............................11-85
A. Troubleshooting Malfunctions .....11-85
V.
TROUBLESHOOTING FEEDING
PROBLEMS......................................11-119
A. Copy Paper Jams........................11-119
B. Feeding Faults.............................11-126
VI. ARRANGEMENT AND FUNCTIONS
OF ELECTRICAL PARTS ................11-127
COPYRIGHT © 1997 CANON INC.
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CHAPTER 11
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
A. Sensors .......................................11-128
B. Switches and Solenoids ..............11-132
C. Motors and Fans .........................11-136
D. Clutches ......................................11-138
E. Lamps, Heaters, and
Photosensors ..............................11-140
F. PCBs ...........................................11-142
G. Paper Deck-A1 ............................11-144
H. Variable Resistors (VR),
Light-Emitting Diodes (LED),
and Check Pins by PCB..............11-148
A. Outline .........................................11-159
B. Using Service Mode ....................11-160
C. Using Adjustment Mode and
Options Mode ..............................11-160
D. Display Mode (
E. I/O Display Mode (
F. Adjustment Mode (
G. Function Mode (
H. Options Mode (
I. Counter Mode (
A. Copier ..........................................11-259
B. RDF-D1 .......................................11-264
) ...............11-162
1
) .........11-179
2
) .........11-215
3
) .............11-233
4
)...............11-244
5
) ..............11-253
6
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