Roland Advanced Jet AJ-1000, Service Notes

Page: 242 / 288

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 is 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 Change the media
If the media tends to curl or become bumpy due to ink, the head
sometimes strikes the media and it causes the ink dropping problem. It
can be avoided by using the media clamps or changing the head
height.
3
Static electricity of the med Perform [PERIODIC CL] User's Manual
if the media produces static electricity easily, it makes accumulated ink
on the head while printing and results in ink dropping. When this is set
to a value from 1 min to 99 min, automatic cleaning is performed while
printing and it may prevent ink dropping.
4
Wiper wears out Wiper Replacement User's Manual
If the cleaning does not work efficiently, foreign substances stuck on
the surface on the head. The ink flows through it and results in ink
dropping.
5
Broken Ink Tube Ink Tube Replacement
[3-6 INK TUBE
REPLACEMENT] When the ink tube is broken, the ink flows through the head nozzles
and results in ink dropping.
6 Broken Head Head Replacement
[3-1 HEAD
REPLACEMENT] When the head is broken mechanically, the ink flows through the head
nozzles 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 [3-10 Encoder scale
replacement]
When there is scratch or dirt on the Encoder Scale, the printing image
could be affected and the vertical bandings could be appeared at the
position where there is scratch or dirt. Use KIMWIPE for cleaning or
replace it. Never use chemicals, such as alcohol, for cleaning.
2 LM Guide is dirty Clean LM Guide
When there is dirt on the LM Guide, the head carriage has the big
moving resistance and the printing image becomes to be changed from
the other part at the position where there is a dirt. And it results in the
vertical banding.
3
There is a dirt in teeth of
the gear
Clean the gear
When there is a dirt in the teeth of the gear, the movement of the head
carriage is changed at the position where there is a 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
The main power is turned off may cause the head nozzle clogging by
not performing self cleaning. To turn off the power, switch off only the
sub power.
6-4