MUTOH ValueJet 1604 Service Manual page 416

9 Troubleshooting
Table 9-9 Symptoms, Check Items and Actions for Printing Problems (Continued)
No. Symptom
12 Many satellites
(unnecessary dots)
Shaggy plotout
Uneven lines (plotted
with stains)
Rev.-05
Check item
1. Is working
environment
appropriate?
2. Is the ink level
remained sufficient?
3. Perform purge three
times consecutively.
4. Perform test printing.
5. Have you started
plotouting
immediately after
initial charge?
6. Is CR belt tension
adjusted to
specification?
7. Check if PF_ENC
assembly and T fence
contact with each
other.
8. Check cleaning wiper
condition.
9-54
VJ-1604 Maintenance Manual
Action
Use machine under specified
environment.
Replace ink cartridge with
new one.
Plot out drawing again.
If nozzle check patterns are
plotted correctly, refer to step
(6)
Be sure to wait 6 hours or
more after initial ink charge.
Plotouting before ink charge
stabilization will not provide
adequate plotting quality.
Adjust CR belt tension.
• 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.
• Wipe cleaning wiper
surface with accessory
cleaning wiper cleaning
cloth dampened with
small amount of purified
water. After wiping
cleaning wiper, perform
cleaning twice
consecutively.
• If cleaning wiper is
sticky with ink, replace it
with a new one.
Reference
"3.5
Choosing a
Place for the
Printer" p.3-6
Operation
Manual
Operation
Manual
Operation
Manual
"7.7 CR
Speed
Reduction Belt
Tension
Adjustment"
p.7-32
"4.8.3
Replacing CR
Board
Assembly"
p.4-107
"4.7.4
Replacing T
Fence" p.4-92
Operation
Manual
"4.9.2
Replacing
Cleaner Head"
p.4-122