MUTOH ValueJet 1304 Service Manual page 381

VJ-1304 Maintenance Manual
Table 9-9 Symptoms, Check Items and Actions for Printing Problems (Continued)
No. Symptom
4 Nozzle plugging or ink
splash is not eliminated
even after cleaning.
CS9050, CS9150
Check item
3. Is nozzle face wiped/
rubbed correctly?
4. Is registered head rank
different from actual
head rank?
5. Does residual ink
collect on print head
assembly or in
nozzles?
6. Check if CR_ENC
assembly and
T fence contact with
each other.
7. Is ink tube in ink
system assembly bent?
8. Is print head damaged? Replace damaged print head.
9. Main board assembly
may be damaged.
9-43
Action
Check wiper installation
condition and secure it
correctly.
Enter correct head rank.
Clean head as follows.
1. Clean head from
"Check4: Adjustment" -
"Adj 9: HeadWash" of
printer self-diagnosis.
2. Perform initial ink
charge from "Check8:
Parameter" -
"Parameter2: Update" -
"Update1: Head Rank".
3. Check printouts again.
• If they contact with each
other, adjust CR_ENC
assembly and T fence
positions.
• If problem remains even
after position
adjustment, replace CR
board assembly and T
fence.
• Replace ink system
assembly and check if
cleaning operation
causes ink inflow.
• If ink inflow is
confirmed, execute
initial ink charge.
Replace main board
assembly.
9 Troubleshooting
Reference
"4.7.3
Replacing
Cleaner Head
(Cleaning
Wiper)" p.4-71
"(1) Head
Rank" p.5-57
"5.7.9
HeadWash
Menu" p.5-44
"(1) Head
Rank" p.5-57
"4.10.1
Replacing CR
Board
Assembly"
p.4-84
"4.5.4
Replacing T
Fence" p.4-50
"4.7.2
Replacing
Maintenance
Assembly"
p.4-70
"4.6.1
Replacing
Print Head"
p.4-56
"4.3.3
Replacing
Main Board
Assembly"
p.4-26
Rev.-01