Xerox 7142, Service Manual

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9 Troubleshooting RJ-901C/RJ-900C Maintenance Manual
9-36
3
7. Main board assembly
may be damaged.
• Replace main board
assembly.
• After replacement,
execute initial ink
charge from "Adj:
Input Rank" of self-
diagnosis function.
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
4 Though initial charge
has started, ink does
not reach head. Is spring of ink system
assembly detached or
damaged? • If the part is detached,
remount it.
• If the part is damaged,
replace ink system
assembly.
"4.7.2
Replacing
Pump Cap
Assembly"
p.4-52
5 Though ink reaches
head, ink is not
discharged from head. Is capping position
appropriate? • If ink inflow is
confirmed, execute
initial ink charge. Operation
Manual
6 Ink is not discharged
though ink charge is
finished. 1. Are damper
assembly, ink tube
and SUS pipe joint
screws (K1, K2, Y,
M, C) securely
tightened?
Is O-ring properly
installed?
• Remove head cover
and check damper
assembly.
• Remove side cover (L, R)
and cartridge cover, and
check ink tube and SUS
pipe joint screws.
"4.2.1
Removing R
Side Cover"
p.4-6
"4.2.3
Removing L
Side Cover"
p.4-9
"4.2.4
Removing
Ink Holder (I/
H) Cover"
p.4-11
2. Does shield part of
damper assembly
have air leak?
• Replace damper
assembly and check if
cleaning operation
causes ink inflow.
• If ink inflow is
confirmed, execute
initial ink charge.
"4.6.1
Replacing
Print Head"
p.4-37
3. Is ink tube in ink
system assembly
bent?
• Replace ink system
assembly and check if
cleaning operation
causes ink inflow.
• If ink inflow is
confirmed, execute
initial ink charge.
"4.7.2
Replacing
Pump Cap
Assembly"
p.4-52
Table 9-9 Symptoms, Check Items and Actions for Initial Operation Problems (Continued)
No. Symptom Check item Action Reference