MUTOH ValueJet Service Manual page 361

ValueJet 1304 Service manual
Table 9-9 Symptoms, Check Items and Actions for Printing Problems (Continued)
No. Symptom
6 Machine outputs all
black printing.
7 Blocky printing
quality.
8 Blocky image printing.
9 CR line seems dotted.
10 White or black lines
appear.
Check item
1. Check connection of
head cable connectors
on CR board assembly
side and print head
side.
• Is head cable inserted
obliquely?
• Is it locked securely?
2. Is CR cable inserted
obliquely?
3. CR cable assembly
may be damaged.
4. Is print head damaged? Replace damaged print head
5. CR board assembly
may be
malfunctioning.
6. Main board assembly
may be damaged.
1. Is working
environment
appropriate?
9-47
Action
Reconnect head cable.
Reconnect main board
assembly connectors J9 - J11
and CR board assembly
connectors J201 - J205.
Replace CR cable assembly.
assembly.
Replace CR board assembly.
Replace main board
assembly.
Use machine under specified
environment.
Reference
"4.6.1
Replacing
Print Head"
p.4-61
"4.10.1
Replacing CR
Board
Assembly"
p.4-91
"4.3.3
Replacing
Main Board
Assembly"
p.4-29
"4.10.1
Replacing CR
Board
Assembly"
p.4-91
"4.10.3
Replacing CR
Tape Wire"
p.4-97
"4.6.1
Replacing
Print Head"
p.4-61
"4.10.1
Replacing CR
Board
Assembly"
p.4-91
"4.3.3
Replacing
Main Board
Assembly"
p.4-29
"3.4
Choosing a
Place for the
Printer" p.3-5
AP-74109 Rev 1.1