Xerox 7142 - Page 282

9 Troubleshooting RJ-901C/RJ-900C Maintenance Manual
9-38
6
9. Is head cable
broken?
Replace head cable. "4.6.1
Replacing
Print Head"
p.4-37
"4.10.1
Replacing
CR Board
Assembly"
p.4-64
10. Is print head
assembly damaged?
Replace print head
assembly.
"4.6.1
Replacing
Print Head"
p.4-37
11. Is CR board
assembly damaged?
Replace CR board
assembly.
"4.10.1
Replacing
CR Board
Assembly"
p.4-64
12. Check connection of
CR cable connectors
on CR board
assembly side and
main board assembly
side.
• Is head cable inserted
obliquely?
• Is it locked securely?
Reconnect following
connectors.
• CR board assembly
connector: J201 - J205
• Main board assembly
connector: J110 - J114
"4.10.1
Replacing
CR Board
Assembly"
p.4-64
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
13. Is CR cable broken? Replace CR cable. "4.10.3
Replacing
CR Tape
Wire" p.4-68
14. Main board assembly
may be defective.
Replace main board
assembly.
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
Table 9-9 Symptoms, Check Items and Actions for Initial Operation Problems (Continued)
No. Symptom Check item Action Reference