Canon 1120 Service Manual page 18

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
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
xvi
COPYRIGHT © 1999 CANON INC.
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
G. PCBs ............................... 13-173
H. Paper Deck...................... 13-175
1. Sensors and
2. Motors, Clutches,
I. Variable Resistors (VR),
Light-Emitting Diodes (LED),
and Check Pins by PCB .. 13-177
1. DC Driver PCB .......... 13-177
2. CPU PCB .................. 13-178
3.
4. Analog Processor
5. Laser Driver PCB ...... 13-179
6. Lamp Regulator
7. DC Fuse PCB ........... 13-180
8. AC Fuse PCB ............ 13-181
9. Developing Bias
10. HVT-AC PCB ............. 13-182
11. Potential Measurement
VII. SERVICE MODE .................. 13-183
A. Outline ............................. 13-183
1. Starting Service Mode and
2. Ending Service
3. Backing Up the
4. Basic Operation ........ 13-194
B. DISPLAY Control Display
Mode ............................... 13-196
C. I/O (I/O display mode) ..... 13-215
1. DC-CPU .................... 13-216
2. R-CPU ....................... 13-232
D. ADJUST
(adjustment mode) .......... 13-235
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Switches .................... 13-175
Solenoids, and
PCBs ......................... 13-176
IP main PCB ............ 13-178
PCB ........................... 13-179
PCB ........................... 13-180
PCB ........................... 13-181
PCB ........................... 13-182
Making Selections ..... 13-184
Mode ......................... 13-185
RAM .......................... 13-185