GRAPHTEC SignJet JS310-25ES Service Manual page 106

Symptom Cause
Printing cannot The firing
be done/There volume setting is
are white not correct.
lines/Printing
condition is not
stable.
Print speed is
too fast.
Print head Print head height
touches with the adjustment is not
media hold plate. correct.
Take-up & Feed Feed roller SW
roller does not setting is not
work. correct.
JS310-UM-251-9370
Solution
Increase the firing vol. setting from 20 in 10 step
and check the printing condition.
[Main menu]
Print Para > Firing Vol >
"0020"->"0030"->"0040"->"0050"->"0060"
(increase the value and check the printing
condition until "0060")
Set the printing speed to "Normal" or "Low".
[Main menu]
Print Para > Print Speed > Norm or Low
Adjust the print head height using the Head
height adjustment Jig.
Head height adjustment Jig
When set to "Auto-feed" (synchronized with
sensor), SW should be set to the direction
specified by the arrow in below photo. (" II")
When set to "Manual feed" (not synchronized
with sensor), SW should be set to the direction
specified by the arrow in below photo. (" I ")
99
11. Troubleshooting
Note
If the ink other than Graphtec
specified ink (IJ80050 series)
is used, firing rate may become
worse.
Refer to section 6.4 Printhead
height Adjustment.
Refer to section 7.1 Loading the
Media".
When the SW is positioned at
center ("O"), the Take-up roller
stops.