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December 2002 TOSHIBA TEC 4 - 71 e-STUDIO160/200/250 TROUBLESHOOTING
(13) Poor cleaning
Step
1
2
3
4
5
Cause/Defect area
Process unit (drum)
Cleaning roller
Heat roller
Measures
Replace process unit or durm.
Replace cleaning roller.
Replace heat roller.
Check and fix heater control circuit.
Replace heat roller.
Replace the process unit or the fuser unit.
Check items
Scratches on drum surface?
Cleaning roller damaged or their
life ended?
Bubbles on heat roller (94 mm
pitch on copy)?
Heat roller life ended?
If problem persists after measures
are applied, or there is no prob-
lem found in above check, follow
procedure described in right col-
umn.
Feeding direction