Xerox 3050 Service Manual page 337

CQ 15 Residual
lmage
Probable Cause Corrective Action
1. There isoffsetting or Residual 1. Go to the C Q 28 Isolation procedure t o determine i f the problem is
Image. offsetting or residual image. Return to this RAP i f the problem
is
residual
image.
2. Photorece~tor drum is not 2. Enter the diagnostic mode and then enter code [0913]. While listing for
being cleaned correctly.
the sound of the Cleaner Blade Solenoid, press Start. The Cleaner Blade
Solenoid should actuate. If it does not, refer t o the Cleaner Blade Solenoid
circuit located on the following page.
Check the following items:
a. The Cleaner Blade Weight moves freely (no wires interfere with the
cleaning blade weight). (REP9.4).
b. Cleaner Blade Solenoid (ADJ 9.1).
c. No wires are interfering with the cleaner blade weight.
d. Cleaner auger and belt.
Remove the Xerographic Module. Check that the Cleaner Blade assembly
translates across the photoreceptor drum.
Remove the photoreceptor drum and check the following items for
damage or contamination:
a. Cleaner Blade Seal Assembly (REP 9.4).
b. Cleaner Blade
(REP
9.4). and Cleaner Blade Housing (PL 9.5)
c. Cleaner Blade Retainers
(REP
9.4).
d. Drum Seal.
e. If the problem perists, replace the Cleaner Blade (REP 9.4).
3. Light shocked Photoreceptor.
3. Make five copies in Normal (center LED) contrast mode, then check the
copy quality against the specification, Section 3, and C Q 14 Registration
.
4a On copiers (W/ 0 Tag/ MOD
4 a. Refer t o C Q 30, if the Erase Lamp is not functioning correctly.
30): the Erase Lamp is not
functioning correctly.
4 b. On copiers (W/ Tag/ MOD 30): 4 b. Refer t o C Q 31, i f the Erase LEDs are not functioning correctly.
the Erase LEDs do not
function correctly.
I
5. An Electrostatic voltage is out 5. Check/adjust the Electrostatic Series ( ADJ 9.2).
of specification.
6. If the residual image problem occurs again within a short period of time,
replace the photoreceptor (REP 9.3) and the Cleaning Blade (REP 9.4).
12/97
3050 3-53
CQ 15 Residual Image