Xerox 7142 Service Manual page 303

RJ-901C/RJ-900C Maintenance Manual
Table 9-11 Symptoms, Check Items and Actions for Printing Problems(Continued)
No. Symptom
13
14
15
Check item
11. Does pump motor
rotate during cleaning
operation?
12. When cleaning
operation is
performed, are gears
and transmission gear
shaft damaged?
13. Is spring of ink system
assembly detached or
damaged?
14. Is ink tube in ink
system assembly bent?
15. Does residual ink
collect on print head
assembly or in
nozzles?
16. Is print head assembly
damaged?
9-59
Action
• Reconnect main board
assembly connector J102
and J103.
• Replace pump motor
assembly.
• Replace main board
assembly.
Replace maintenance base
assembly.
• If the part is detached,
remount it.
• If the part is damaged,
replace ink system
assembly.
• Replace ink system
assembly and check if
cleaning operation
causes ink inflow.
• If ink inflow is
confirmed, execute
initial ink charge.
Clean head as follows.
1) Clean head from "Adj:
Clean Head" of plotter
self-diagnosis.
2) Perform initial ink
charge from "Adj: Input
Rank".
3) Check printouts again.
Replace damaged print head
assembly.
9 Troubleshooting
Reference
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
"4.7.1
Removing
Maintenance
Base
Assembly"
p.4-47
"4.7.1
Removing
Maintenance
Base
Assembly"
p.4-47
"4.7.2
Replacing
Pump Cap
Assembly"
p.4-52
"4.7.2
Replacing
Pump Cap
Assembly"
p.4-52
"5.5.13
Head Cleaning
Menu" p.5-45
"5.5.2
Head Rank
Input Menu"
p.5-25
"4.6.1
Replacing
Print Head"
p.4-37