Muton ValuejetVJ-1604, Maintenance Manual

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9 Troubleshooting VJ-1604 Maintenance Manual
Rev.-00 9-66
2 Abnormal noise in
waiting mode 1. Are there any foreign
objects or obstacles at
noise-generating
position?
Remove obstacles and
foreign objects. -
2. Is abnormal noise
heard from board?
Replace applicable one of the
following board assemblies.
•
Power board assembly
• Main board assembly
• CR board assembly
• Print head assembly
"4.4.2
Replacing
Power Board
Assembly"
p.4-41
"4.4.7
Replacing
MAIN Board"
p.4-49
"4.8.9
Replacing
Print Head"
p.4-114
3 Abnormal noise is
heard while head is
moving laterally. 1. Does customer
recognize ink
discharge noise as
abnormal noise?
Explain machine operations. -
2. Is abnormal noise
caused by loose screw
in covers?
Additionally tighten screws. "4.2
Removing
Covers" p.4-7
3. Is rattling noise heard
when moving carriage
laterally?
• Remove dust from
carriage bearing and
roller strip.
• After cleaning roller
strip, always apply thin
lubricant film over its
surface using a grease-
sprayed cloth.
-
4. Is abnormal noise
heard from CR cable?
• Remove twists from CR
cable.
• If abnormal noise sounds
from between steel
bearer and tube guide,
replace tube guide.
"4.7.8
Replacing CR
Tape Wire"
p.4-99
Table 9-12 Symptoms, Check Items, and Actions for Noise Problems (Continued)
No. Symptom Check item Action Reference