Xerox 7142, Service Manual

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9 Troubleshooting RJ-901C/RJ-900C Maintenance Manual
9-56
8
9
10
11
17. Does residual ink
collect on head
assembly or in
nozzles?
Clean head as follows.
1. Clean head through
"Adj: Clean Head" of
self-diagnosis function.
2. Perform initial charge
through "Adjustment:
Voltage input".
3. Check plotouts again.
"5.5.13
Head Cleaning
Menu" p.5-45
"5.5.2
Head Rank
Input Menu"
p.5-25
18. Is print head damaged? Replace damaged print head. "4.6.1
Replacing
Print Head"
p.4-37
19. Are the following self-
diagnosis functions
judged as normal when
checked with specified
cartridge securely
inserted?
- Detection of presence
of ink from "Sen: Ink
NOT"
- Detection of presence
of cartridge from ""Ink
Not"
• Follow the steps for the
message "[K1K2CMY]
No Cartridge".
• After adjustment/
replacement, execute
initial ink charge from
"Adj: Input Rank" of
self-diagnosis function.
"5.5.2
Head Rank
Input Menu"
p.5-25
20. CR board assembly
may be
malfunctioning.
Replace CR board assembly. "4.10.1
Replacing CR
Board
Assembly"
p.4-64
21. 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