Toshiba DP1600 Service Handbook page 195

(13) Poor cleaning
Step Cause/Defect area
1 Process unit (drum)
2 Cleaning roller
3 Heat roller
4
5
December 2000 © TOSHIBA TEC
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.
4 - 71
01/11
Measures
Replace process unit or durm (SRU type).
Replace cleaning roller.
Replace heat roller.
Check and fix heater control circuit.
Replace heat roller.
Replace the process unit or the fuser unit.
1600/2000/2500 TROUBLESHOOTING