Xerox 7142 Service Manual - page 295

RJ-901C/RJ-900C 　 Maintenance Manual

9 Troubleshooting

9-51

5

6

13. When cleaning 

operation is 

performed, is 

transmission gear shaft 

damaged?

Replace maintenance base 

assembly.

"4.7.1 

Removing 

Maintenance 

Base 

Assembly" 

p.4-47

14. Check head cable 

connectors at CR 

board assembly side 

and print head 

assembly side.

•

Is head cable inserted 

obliquely?

•

Is it locked securely?

Reconnect head cable.

"4.6.1 

Replacing 

Print Head" 

p.4-37

"4.10.1 

Replacing CR 

Board 

Assembly" 

p.4-64

15. Is print head damaged? Replace damaged print head.

"4.6.1 

Replacing 

Print Head" 

p.4-37

16. CR board assembly 

may be defective.

Replace CR board assembly.

"4.10.1 

Replacing CR 

Board 

Assembly" 

p.4-64

17. Main board assembly 

may be damaged.

Replace main board 

assembly.

"4.3.3 

Replacing 

Main Board 

Assembly" 

p.4-21

Table 9-11  Symptoms, Check Items and Actions for Printing Problems(Continued)

No.

Symptom

Check item

Action

Reference