Xerox 2510 Service Manual page 197

CQ 21 Streaks (TYPE 1.2, Dry
ink
Streaks)
Probable Cause
Corrective Action
Definition
1. Something
i s blocking the optical path to
the photoreceptor drum.
1. Remove the photoreceptor drum assembly (REP
9.2) and cover it with a shield. Look for an
obstruction in the optical path.
1
Cleon the top
and bottom
of tho lens
assembly.
Copy defects that appear in the
process direction (from lead edge to
trail edge). Streaks may be uniform
(with clearly defined lines),
nonuniform (a smudge with no clearly
defined line pattern), or periodic. The
dry ink streaks did not follow the
photoreceptor drum. The
photoreceptor drum may still be good.
2. Photoreceptor drum not being cleaned
correctly.
2.
Enter the diagnostic mode and then enter
code
(1).
Press Start and then Stop. The
cleaner blade solenoid should actuate. If
not:
Check the cleaner blade solenoid circuit
on the following page.
Remove the xerographic module. Check the
following:
Cleaner blade solenoid adjustment (ADJ
9.1).
The clenner blnde weight moves freely
and when fully transitioned, does not
touch the frame. Ensure that there i s
clearance.
The cleaner blade assembly transitions
ocross the photorecoptor drum,
No wires are interfering with the cleaner
blade weight.
Cleaner auger and belt.
Remove the photoreceptor drum and check the
following for damage or contamination:
Cleaner blade
seal
assembly
(REP
9.4).
Cleaner blade (REP 9.4).
Cleaner blade retainers (REP 9.4).
Drum seal.
If the cleaning problem persists change the
cleaner blade (REP 9.4).
(Continued)
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CQ 21 Streaks (Type 1.2, Toner streaks)