FC-22
TROUBLESHOOTING
4 - 68
January 2000 © TOSHIBA TEC
Cause/Defect area
Step
Check items
Measures
Main charger
Drum
Discharge LED array
Developer unit
Drive system
High-voltage transformer
(main charger and transfer
roller)
1
Foreign matter on charger?
2
Terminal contact defective?
3
Any abnormalities on drum surface?
4
Discharge LED array lighting properly?
5
Developer sleeve rotation defective? Any
abnormalities on sleeve surface?
6
Drum or scanner jittery?
7
High-voltage transformer output defective?
Remove foreign matter.
Clean or adjust terminals.
Replace drum.
Replace discharge LED array or clean terminals.
Check developer drive system, or clean sleeve sur-
face.
Check each drive system.
Check/correct related circuits.
If high-voltage transformer is defective, replace it.
(12) White banding (at right angles to feeding direction)
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 ...