MUTOH ValueJet Service Manual page 362

Table 9-9 Symptoms, Check Items and Actions for Printing Problems (Continued)
No. Symptom
7 Blocky printing
quality.
8 Blocky image printing.
9 CR line seems dotted.
10 White or black lines
appear.
AP-74109 Rev 1.1
Check item
2. Have you started
printing immediately
after initial charge?
3. Is suction fan run as
normal when checked
through "Check2:
Test" - "Test5: Fan" of
self-diagnosis
function?
9-48
ValueJet 1304 Service manual
Action
Printing just after initial
charge may cause following
symptoms.
• Printed line blurs.
• White lines appear.
In such cases, perform
cleaning two or three times
and check printout again.
If symptoms remain even
after cleaning, leave machine
unused for 1 hour or more.
Then perform cleaning again
and check printout.
If symptoms still remains,
refer to Operation Manual to
contact the technical support.
• Check connection of
following main board
assembly connectors.
• Suction fan 1 - 4
assembly: J25 - 29
• Replace suction fan
assembly.
• Replace cable of suction
fan that does not operate
normally.
Reference
Operation
Manual
"4.9.1
Replacing
Suction Fan
Assembly"
p.4-89