6-4 INK DROPS ON THE MEDIA
NO
CHECKING POINT
ACTION
REFERENCE
OUTLINE
1
Foreign substances
Manual Cleaning
User's Manual
When foreign substances such as fiber dust are stuck on the
surface of the Head, Ink sometimes leaks from it. Wipe the
surface of Head with a cleaning stick.
2
Media strikes Head
Use the media clamps/
Replace with a suitable
media
If media tends to curl or become bumpy due to the Ink
absorption, the Head sometimes strikes the media while
printing and it causes the Ink dropping problem.
3
Static electricity of
the media
Perform [PERIODIC CL] User's Manual
If media produces static electricity easily, the ink tends to
remain on the head surface while printing and results in ink
dropping. When this is set to [1 min] to [990 min], automatic
cleaning is performed while printing and it may prevent the ink
dropping.
4
Wiper wears out
Wiper Replacement
User's Manual
Cleaning does not work effectively with worn wiper. Therefore,
foreign substances stuck on the head surface cannot be
removed completely and the ink flows through it and results in
ink dropping.
5
Broken ink tube
Ink Tube Replacement
[3-8 INK TUBE
REPLACEMENT]
When the ink tube is broken, it is not possible to keep the ink
line air tight and results in ink dropping.
6
Broken Head
Head Replacement
[3-1 HEAD
REPLACEMENT]
When a head is broken mechanically such as a crack, it is not
possible to keep the ink line air tight and results in the ink
dropping.
6-5 VERTICAL BANDING
NO
CHECKING POINT
ACTION
REFERENCE
OUTLINE
1
Encoder Scale is dirty
Clean / Replace Encoder
Scale
[3-12 ENCODER SCALE
REPLACEMENT]
When there is scratch or dirt on the Encoder Scale, the
printing image could be affected and the vertical bandings
appear at the position where there is scratch or dirt.
2
LM Guide is dirty
Clean LM Guide
When the sliding resistance with the moving Head Carriage
increases partly due to some dirt on the LM Guide, it may
affect the printing at the position where there is dirt and the
vertical banding may appear.
3
There is dirt in the teeth
of the gear
Clean the gear
When there are foreign substances on the teeth of the gear,
the movement of the Head Carriage changes at the position
where there is dirt. And it results in the periodical vertical
banding.
6-6 MISSING DOT OR DEFLECTED-FIRED DOT APPEARS WHEN PERFORMING PRINTING WITH LONG DELAY
NO
CHECKING POINT
ACTION
REFERENCE
OUTLINE
1
Check the main power
switch
Do not switch off the
main power
User's Manual
When the main power is off, the maintenance flushing is not
performed and it may cause the Head nozzle clogging. Make
sure to power on/off with only the sub power switch for daily
use.
6-3