e-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTING June 2004 © TOSHIBA TEC
5 - 106
13)Black banding (at right angle with the feeding direction)
Fig. 5-13
Defective area Step Check items Prescription
Main charger 1 Is the needle electrode dirty or
deformed?
Clean or replace the needle elec-
trode.
Fuser unit 2 Are the fuser roller, separation finger
for fuser roller and thermistor dirty?
Clean them.
3 Has the cleaning roller, pressure
roller, fuser roller and separation fin-
ger for fuser roller reached their PM
life?
Replace them.
High-voltage transformer
(Main charger / Developer
bias / Transfer charger)
4 Is the high-voltage transformer out-
put defective?
Adjust the output, or replace the
transformer.
Drum 5 Is there a deep scratch on the drum
surface?
Replace the drum if the scratch has
reached the aluminum base.
6 Is there thin scratch (drum pitting) on
the drum surface?
Check and adjust the contact condi-
tion of the cleaning blade and recov-
ery blade.
Scanner 7 Is there a foreign matter on the car-
riage rail?
Remove the foreign matter.
Feeding direction
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