Xii

CONTENTS

2.7.10Adjusting 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

2.7.12Adjusting the Pressure of the Multifeeder Separation

Roller

5-40

2.7.13Adjusting 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

2.7.16Adjusting the Position of the Duplexing Unit Stacking

Assembly Paper Guide
Plate	5-41

2.7.17Adjusting the Position of the Duplexing Unit Feeding Roller

Solenoid (SL13)

5-42

2.7.18Attaching 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

2.8.1When Replacing the Laser

Unit

5-45

2.8.2When Replacing the Video Con-

troller PCB

5-45

2.8.3When Replacing the BD

Unit

5-45

2.8.4Adjusting the Laser Power 5-45

2.8.5Adjusting the Laser

Intensity	5-49
2.8.6 Laser Focus Adjustment ....	5-50

2.9Fixing Assembly-Related Parts 5-52

2.9.1Points to Note When Replacing

the Fixing Heater

5-52

2.9.2Adjusting the Nip (fixing pres-

sure adjusting nut)

5-52

2.9.3Adjusting 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

3.1.3Checking the Copyboard Cover, Copyboard Glass, and

Standard White Plate

5-66

3.1.4Checking the Charging

Assemblies ......................... 5-66

3.1.5Checking the Developing

Assembly	5-66
3.1.6 Checking the Paper	5-66

3.1.7Checking the Periodically

CANON CLC5000 REV.0 JAN. 2001