Chapter 13 Troubleshooting; Inspection; Procedure; Servicing - Canon CLC 1120 Service Manual

TROUBLESHOOTING
I. MAINTENANCE AND

INSPECTION ........................... 13-3

A. Image Adjustment Basic

Procedure ........................... 13-3

B. Points to Note for Scheduled

Servicing ............................. 13-6

II. STANDARDS AND

ADJUSTMENTS ....................... 13-7

A. Image Adjustment System .. 13-7
B. Exposure System .............. 13-14
C. Image Formation System .. 13-15
D. Pickup/Feeding System .... 13-20
E. Fixing System ................... 13-28
F. Externals/Controls ............ 13-31
G. Paper Deck........................ 13-32
H. Electrical System .............. 13-36
III. TROUBLESHOOTING
FAULTY IMAGES ................... 13-51
A. Making Initial Checks ........ 13-51
1. Environment of
the Site ........................ 13-51
2. Checking the Originals
against Symptoms ...... 13-51
3. Checking the Copyboard
Cover, Copyboard Glass,
and Standard White
Plate ............................ 13-51
4. Checking the Charging
Assemblies .................. 13-51
5. Checking the Developing
Assembly ..................... 13-51
6. Checking the Paper..... 13-52
7. Checking Periodically
Replaced Parts ........... 13-52
8. Others ......................... 13-52
B. Standard Images ............... 13-53
C. Test Print ........................... 13-56
1. Selecting a Test Print
Pattern ......................... 13-56
2. Horizontal Stripe Test Print
(PG>TYPE=10, 16) ..... 13-57
3. 256-Color Test Print
(PG>TYPE=2) ............. 13-58
COPYRIGHT © 1999 CANON INC.
CHAPTER 13
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
4. 256-Gradation Test Print
(PG>TYPE=3) ............. 13-59
5. 16-Gradation Test Print
(PG>TYPE=4) ............. 13-60
6. Halftone Test Print
(PG>TYPE=5) ............. 13-61
7. Grid Test Print
(PG>TYPE=6) ............. 13-63
8. YMCBk 64-Gradation Test
Print (PG>TYPE=12) .. 13-64
9. BGR 64-Gradation Test
Print (PG>TYPE=13) .. 13-65
10. Full-Color 16-Gradation
(YMCBk) Test Pint
(PG>TYPE=14) ........... 13-66
11. Full-Color Light Area/16-
Gradation (YMCBk) Test
Print (PG>TYPE=15) .. 13-67
D. Troubleshooting Image
Problems ........................... 13-68
IV. TROUBLESHOOTING
MALFUNCTIONS ................... 13-97
A. Troubleshooting
Malfunctions ...................... 13-97
V. TROUBLESHOOTING
FEEDING FAULTS ............... 13-150
A. Copy Paper Jams ............ 13-150
B. Feeding Faults................. 13-160
VI. ARRANGEMENT OF
ELECTRICAL PARTS .......... 13-161
A. Sensors ........................... 13-161
1. CLC1120/1130 .......... 13-161
2. CLC1150 ................... 13-163
B. Thermistors, Lamps,
and Heaters .................... 13-165
C. Clutches .......................... 13-166
1. CLC1120/1130 .......... 13-166
2. CLC1150 ................... 13-167
D. Solenoids ........................ 13-168
1. CLC1120/1130 .......... 13-168
2. CLC1150 ................... 13-169
E. Fans ................................ 13-170
F. Motors ............................. 13-171