Xerox 7142 Service Manual - page 278

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