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 [PERIODIC CL] 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
Replace Wiper
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
Replace Ink Tube
[3-20 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.
6-7 VERTICAL BANDING
NO
CHECK
ACTION
REFERENCE
OUTLINE
1
Encoder Scale is dirty
Clean / Replace Encoder
Scale
[3-13 ENCODER SCALE
REPLACEMENT]
When there is a scratch or dirt on the Encoder Scale, the
printing image could be affected and the vertical bandings could
appear at the position where there is a 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 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.
6-8 MISSING DOT OR DEFLECTED DOT APPEARS WHEN PRINTING AFTER A LONG INTERVAL
NO
CHECK
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 nozzle clog. Make sure to turn
the power on / off with only the sub power switch for daily use.
2
Ink agitation in the ink
cartridge
Gently shake the cartridge User's Manual
The message to shake the cartridges is displayed periodically. If
you do not follow the message, the ink generates high or low
density inside to bring about inappropriate printing result.
3
Periodic ink circulation is
not working
Perform ink circulation /
Check the cable
connection of circulation
pump / Check the ink lines
including the circulation
pump
[4-1 SERVICE MODE]
If the ink circulation is not performed, the ink settles and
separates. The precipitated material may be solidified and
cause clogging of the print heads or other malfunction.
6-9 UNWANTED LINES ARE PRINTED
NO
CHECK
ACTION
REFERENCE
OUTLINE
1
Encoder Scale is dirty /
broken
Clean or replace Encoder
Scale
[3-13 ENCODER SCALE
REPLACEMENT]
If the Encoder Scale has any fine dust on it, some unwanted
lines may be printed on that area.
6-4
Summary of Contents for VS-300
Page 49: ...2 4 MAIN BOARD_Arrangement Diagram Soldering Side ...
Page 60: ...2 15 SERVO BOARD_Arrangement Diagram Soldering Side ...
Page 65: ...2 20 2 4 CARRIAGE BOARD CARRIAGE BOARD_Arrangement Diagram Component Side ...
Page 68: ...2 23 2 5 SUB BOARD SUB BOARD_Arrangement Diagram Component Side ...