Technical information

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
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4.1.60 Abnormal noise is heard.
Scanner system
1) Is the noise from the scanning system?
YES: Check the scanner motor, belt, cable, pulley, and rail. Check the
mirror mount for an object that may come into contact.
Drum motor drive system
2) Is the noise from the drum unit?
YES: Check the drum motor drive system (drum motor, gear, photosensi-
tive drum, flywheel).
Fan
3) Is the noise from the fan?
YES: Check the fan.
Developing motor drive system
4) Is the noise heard when only the developing motor is rotating?
*1
YES: Check the developing motor drive system. Check the reciprocating op-
eration of the developing assembly, cleaning screw, and cleaning blade.
Pick-up motor drive system
5) Is the noise heard when paper is picked up?
YES: Check the pick-up motor (Multifeeder, Cassette 1/2) system and the
hopper motor drive system.
Fixing motor drive system
6) Is it from the fixing assembly?
YES: Check the fixing motor drive system.
Transfer unit drive system
7) Is it from the transfer unit?
YES: Check the transfer unit drive system.
Waste toner feeding drive system
8) Is it from the waste toner feeding system?
YES: Check the waste toner feeding system.
Duplexing unit drive system
9) Is it from the duplexing unit unit?
YES: Check the duplexing unit drive system.
Note1: • If the problem is the cleaning blade, it is not clear which station is suffer-
ing from a temperature error. Make 10 solid copies using each color. If the
problem is not corrected, dispose of the waste toner, and put 5 g of drum
cleaner lubricating agent (FG2-1694) into the cleaning assembly.
• If the problem is the side scraper, replace the side scraper, and put a
small amount of drum cleaning lubricant to the tip of the side scraper.
• If the problem is the side seal, clean the felt surface, and remove the
drum cleaner.