Xerox 7142, Service Manual

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9 Troubleshooting RJ-901C/RJ-900C Maintenance Manual
9-34
2
4. Check panel cable for
proper connection at
operation panel unit
assembly side and
main board assembly
side.
• Is the panel cable
inserted obliquely?
• Is the connector
securely locked?
Reconnect following
connectors.
• Main board: J125
• Operation panel unit
assembly
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
5. Panel cable may be
damaged.
Replace panel cable. "4.2.2
Removing
Operation
Panel Unit"
p.4-8
6. Is operation panel
unit assembly LCD
damaged?
Replace panel board
assembly. "4.2.2
Removing
Operation
Panel Unit"
p.4-8
7. Main board assembly
may be damaged.
Replace main board
assembly. "4.3.3
Replacing
Main Board
Assembly"
p.4-21
3
Initial ink charge not
available 1. Is "Sen: Cover open"
displayed on LCD
with front cover
closed?
• Check connection of
cover sensor assembly
connector.
• Replace cover sensor
assembly.
"4.8.3
Replacing
Cover Sensor
Assembly"
p.4-60
Table 9-9 Symptoms, Check Items and Actions for Initial Operation Problems (Continued)
No. Symptom Check item Action Reference