Black Banding (At Right Angle With The Feeding Direction) - Toshiba e-STUDIO2006 Service Manual

8.4.13

Black banding (at right angle with the feeding direction)

Defective area
Main charger
Fuser unit
High-voltage transformer
(Main charger / Developer
bias / Transfer roller unit)
Drum
Scanner
e-STUDIO2006/2306/2506/2007/2307/2507/2303A/2303AM/2803AM/2309A/2809A
ERROR CODE AND TROUBLESHOOTING
Fig.8-15
Step Check items
1 Is the needle electrode dirty or
deformed?
2 Are the fuser roller, fuser roller
separation finger and thermistor
dirty?
3 Has the fuser roller and fuser roller
separation finger reached their PM
life?
4 Is the high-voltage transformer
output defective?
5 Is there a deep scratch on the drum
surface?
6 Is there thin scratch (drum pitting) on
the drum surface?
7 Are the original glass (especially the
position of shading correction plate)
and CIS unit dirty?
8 - 80
Prescription
Clean or replace the needle
electrode.
Clean them.
Replace them.
Adjust the output, or replace the
transformer.
Replace the drum if the scratch has
reached the aluminum base.
Check and adjust the contact
condition of the cleaning blade and
recovery blade.
Clean them.
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