Xerox 7142 Service Manual - page 280
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