Xerox 7142 Service Manual page 251

RJ-901C/RJ-900C Maintenance Manual
Table 9-3 Symptoms and Check Items for Errors with Message(Continued)
No. Message
1
2 Media skew
error
Event/ Check item
symptom
6. CR board assembly
may be damaged.
7. Check presence of
media from "Sen:
PaperRear AD" of
self-diagnosis
function.
8. Main board
assembly may be
damaged.
Media is 1. Set media again and
running check reappearance.
obliquely.
2. Is suction fan
judged as normal
when checked
through "Test: Fan"
of self-diagnosis
function?
3. Is shielding material
secured at specified
position?
4. Check pressure
lever operation.
Replace CR board
assembly.
When "No media" is
displayed even if media
is set, replace P_REAR
sensor.
Replace main board
assembly.
If this error is caused by
user's inappropriate
media setting, instruct
correct media setting
procedure.
- Check connection of
following main board
assembly connectors.
• Suction fan 1 cable:
J128
• Suction fan 2 cable:
J127
• Suction fan L cable:
J126
• Replace suction fan
assembly.
• Replace cable of
suction fan that does
not operate
normally.
Remount it at specified
position.
Apply grease (G501) to
pressure cam and make
adjustment.
9-7
9 Troubleshooting
Action Reference
"4.10.1
Replacing CR
Board
Assembly"
p.4-64
"4.9.2
Replacing
P_REAR
Sensor
Assembly"
p.4-63
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
-
"4.9.1
Replacing
Suction Fan
Assembly"
p.4-62
-
"8.4
Lubrication/
Bonding"
p.8-6