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COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
xii
CONTENTS
2.7.10 Adjusting the Pressure of the
Paper Deck Separation/Feeding
Roller ................................. 5-39
2.7.11 Positioning the Cassette Pickup
Roller Releasing Solenoid
(SL9, SL10) ....................... 5-39
2.7.12 Adjusting the Pressure of the
Multifeeder Separation
Roller ................................. 5-40
2.7.13 Adjusting the Position of the
Multifeeder Pick-Up Roller
Releasing Solenoid
(SL5) .................................. 5-40
2.7.14 Adjusting the Position of the
Delivery Paper Deflecting Plate
Solenoid (SL14) ................ 5-40
2.7.15 Adjusting the Position of the
Duplexing Unit Paper Deflect-
ing Plate Solenoid
(SL11) ................................ 5-41
2.7.16 Adjusting the Position of the
Duplexing Unit Stacking
Assembly Paper Guide
Plate ................................... 5-41
2.7.17 Adjusting the Position of the
Duplexing Unit Feeding Roller
Solenoid (SL13) ................ 5-42
2.7.18 Attaching the Timing Belt for
the Duplexing Unit Stacking
Assembly Paper Guide
Plate ................................... 5-42
2.7.19 Adjusting the Position of the
Separation Claw Solenoid
(SL15) ................................ 5-43
2.7.20 Adjusting the Position of the
Upper Fixing Web Take-Up
Solenoid (SL3) .................. 5-43
2.7.21 When Replacing the
Registration Roller Unit .... 5-43
2.7.22 Correcting Skew
Movement(slope of the
registration roller unit)....... 5-44
2.8 Laser Exposure System............ 5-45
2.8.1 When Replacing the Laser
Unit .................................... 5-45
2.8.2 When Replacing the Video Con-
troller PCB .........................5-45
2.8.3 When Replacing the BD
Unit .................................... 5-45
2.8.4 Adjusting the Laser Power 5-45
2.8.5 Adjusting the Laser
Intensity ............................. 5-49
2.8.6 Laser Focus Adjustment .... 5-50
2.9 Fixing Assembly-Related Parts 5-52
2.9.1 Points to Note When Replacing
the Fixing Heater ............... 5-52
2.9.2 Adjusting the Nip (fixing pres-
sure adjusting nut) ............. 5-52
2.9.3 Adjusting the Mounting Posi-
tion of the External Paper
Delivery Unit ..................... 5-53
2.10 Electrical .................................. 5-54
2.10.1 When Replacing Major
Parts ................................... 5-54
2.10.2 Checking the Environment
Measurement PCB ............. 5-58
2.10.3 Checking the High Voltage
Control System .................. 5-60
2.10.4 Checking the
Photointerrupters ............... 5-61
3 Troubleshooting Image Problems .....5-66
3.1 Initial Checks ........................... 5-66
3.1.1 Checking the Site of
Installation ......................... 5-66
3.1.2 Checking the Originals ...... 5-66
3.1.3 Checking the Copyboard Cover,
Copyboard Glass, and
Standard White Plate ......... 5-66
3.1.4 Checking the Charging
Assemblies .........................5-66
3.1.5 Checking the Developing
Assembly ........................... 5-66
3.1.6 Checking the Paper ............ 5-66
3.1.7 Checking the Periodically
Replaced Parts ................... 5-67
3.1.8 Others ................................ 5-67
3.2 Standard Image ........................ 5-67
3.2.1 Gray Scale.......................... 5-67
3.2.2 Color Patches ..................... 5-67
3.2.3 Photo.................................. 5-67