6 Troubleshooting
6-1 DEFECT OF PRINT QUALITY (BANDING/SCRATCHY PRINTING/BLURRED PRINTING)
NO
CHECKING POINT
ACTION
REFERENCE
OUTLINE
1
Machine is not installed in
an appropriate location
Install in a location that is
level and stable.
Never install the machine in a location where it is tilted or
where it may wobble or librate.
2
Media is not set up
correctly
Load and set up the
media correctly at the
correct position.
User's Manual
Feed is not smooth when media is tilted or tensioned unevenly
on the left and right. Reload and set up the media correctly.
3
Temperature of the print
heater is inappropriate
Set appropriate
temperature
User's Manual
When the temperature of the print heater is too high and the
ink drys too fast, it may result in banding because the dots
stay small afetr landing on media.
4
Bi-directinal adjustment is
not correct
Correct setting for
Bidirectional Printing
User's Manual
5
Feed Calibration is not
correct
Apply Calibration
User's Manual
If the calibration is not correct, white fine line caused by gaps
or dark line caused by overlapping appears.
6
Scanning distance of the
Head Carriage
Set the [FULL WIDTH S]
to [FULL]
User's Manual
Set [FULL WIDTH S] to [FULL] to uniform the heating time on
each pass. This may improve printing quality.
7
[PERIODIC CL.] setting
Set [PERIODIC CL.] to
[NONE] or [Page]
User's Manual
When this is set to [1 min] to [990 min], self cleaning is
performed while a printing is paused. And it may cause
uneven printing at the part before and after cleaning.
8
Wrong profile for the
media
Use a suitable Profile
9
Head Rank is not correct Set Head Rank
[3-1 HEAD
REPLACEMENT]
Head Rank setting affects the amount of the fired Ink. If it is
not set properly, the ink dots are not fired in appropriate sizes.
10
Head is out of adjustment Head Alignment
[4-4 HEAD ALIGNMENT]
Check whether each [BIAS], [VERTICAL], [HORIZONTAL]
and [BI-DIR.DEFAULT] settings are correct.
11
Foreign substances stuck
on the head
Manual cleaning.
User's Manual
Nozzle condition becomes poor due to the foreign substances
stuck on the surface of the Head.
12
Wiper wears out
Wiper replacement
[3-2 WIPER
REPLACEMENT]
Wiping does not work effectively and foreign substances left
on the head surfaces cannot be removed completely.
13
Defect of Cap Top
Cap Top replacement
[3-3 CAP TOP
REPLACEMENT]
Cleaning does not work effectively and the nozzle condition
cannot be improved. Also, if the head is not capped correctly,
the head dries and it may cause the head nozzle clogging.
14
Head nozzle is clogged
Clean the head surface
using the cleaning stick.
(Manual Cleaning)
Generally, we do not recommend to wipe the surface of Head
with a cleaning stick. Howerver, it's worth trying before
replacing the Head. Soak the cleaning stick in cleaning liquid
fully, and then tap and scrub the surface of Head with it.
15
Broken Head
Head replacement
[3-1 HEAD
REPLACEMENT]
16
Broken Pump
Pump replacement
Ink suction during cleanings does not work and the nozzle
condition cannot be improved.
6-1
Missing dot or
deflected-fired dot
appears on the test
Perform Normal
Cleaning
Solved
To 11-16
To 1-10
Yes
No
Improved
Not Improved
*Several Normal Cleanings and a Powerful
Cleaning do not improve the printing result.