Xerox 3050 Service Manual page 311

CQ
2 Background Bandingl Streaks
probable Cause
(Continued)
Corrective Action
I
7.
Uneven distribution of developer material 7.
within the developer housing.
8. The
media path components are
8.
contaminated.
9. Dry ink concentration is too high. 9.
Ensure that the copier is level front-to-
back and side-to-side (ADJ
14.1).
Clean the areas on the transport module
and xerographic module that could come
i n contact with the media.
Remove the dry ink cartridge and inspect it
for damage and dry ink leakage. If the
cartridge is damaged, replace that
cartridge and waste bottle (PL
9.1 ).
Make a copy of Test Pattern
82E5980.
Check the solid area density. If
it
is greater
than 1.2, perform the Electrostatic Series
(ADJ 9.2) and lmage Density (ADJ 9.3 or
9.4).
If this is not successful, replace the
developer material. Perform the Image
Density (ADJ
9.3
or 9.4).
10.
The cooling fans are not operating or they 10. Go to the 1.3 Cooling Fan RAP in section 2.
are defective or damaged.
11. If
the problem still exists, go to the
CQ 1
Uniform Background RAP.
12.
Document stops over the lens during scan 12.
Check document Stop Position (ADJ
5.2).
and/or rescan.
13.
Photoreceptor Drum Seal i s damaged or 13. Check the Photoreceptor Drum Seal for
missing. damage (PL 9.5).
8194
3050 3-27
CQ 2 Background Banding1 Streaks