© 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
e-STUDIO163/166/203/206
TROUBLESHOOTING
5 - 33
5
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
Are the original glass (especially the
position of shading correction plate)
and CIS unit dirty?
Clean them.
Feeding direction
Summary of Contents for e-STUDIO 163
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