FC-22
TROUBLESHOOTING
4 - 74
January 2000 © TOSHIBA TEC
Cause/Defect area
Step
Check items
Measures
Main charger
Transfer belt
Laser optical unit
Discharge LED array
Developer unit
Scanner section
1
Main charger dirty?
2
Transfer belt dirty?
3
Transfer belt in defective contact with
drum?
4
Any abnormalities or deformation on belt?
5
Foreign matter or dust on slit glass?
6
Discharge LED array dirty?
7
Any lamp of discharge LED array gone out?
8
Magnetic brush in defective contact with
drum?
9
Developer unit pressure mechanism mal-
functioning?
10 Defective transport of developer material?
11 1. Platen cover open?
2. Glass, mirrors, or lens filter dirty?
Clean it or replace charger wire.
Clean belt.
Adjust belt.
Replace belt.
Clean slit glass.
Clean it.
Replace it.
Adjust doctor-sleeve gap.
Check mechanism.
Remove foreign matter if any.
1. Close platen cover.
2. Clean them.
(18) Uneven image density
F
eeding direction
Summary of Contents for FC22
Page 115: ...FC 22 PREVENTIVE MAINTENANCE 2 8 January 2000 TOSHIBA TEC Front side drive system 47 20 ...
Page 121: ......
Page 235: ...January 2000 TOSHIBA TEC 5 29 FC 22 FIRMWARE UPDATING ...
Page 237: ...FC 22 SERVICE HANDBOOK 6 WIRE HARNESS CONNECTION DIAGRAMS 6 2 DC Wire Harness ...
Page 238: ...FC 22 WIREHARNESS CONNECTION DIAGRAMS 6 3 January 20000 TOSHIBA TEC ...