Ricoh FT 4015 - Vertical Black Bands

1.4 VERTICAL BLACK BANDS
- Problem -
Vertical black bands appear on the copy.
- Possible Causes -
1. Dirty optics
2. Dust between the cleaning blade and drum
3. Deformed edge of the cleaning blade
4. Deformed inlet seal on the development unit
- Action -
Do the black bands shift when a reduction copy is made?
No Yes
Check and clean the optics section. After cleaning the optics, perform
the necessary SP modes in order (see Section 4 - Service Remarks
for details).
Remove the cleaning blade and clean the edge of the cleaning blade. Then
check if the edge of the cleaning blade is deformed or not.
No Yes
Replace the cleaning blade.
Replace the imaging unit.
A219T501.wmf
COPY QUALITY 20 December 1996
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