Ink Drops On The Media; Vertical Banding; Missing Dot Or Deflected-Fired Dot Appears When Performing Printing With Long Delay - Roland VersaCAMM VP-540 Service Notes

6-4 INK DROPS ON THE MEDIA

NO CHECKING POINT
1
Foreign substances
2
Media strikes Head
Static electricity of
3
the media
4
Wiper wears out
5
Broken ink tube
6
Broken Head

6-5 VERTICAL BANDING

NO CHECKING POINT
1 Encoder Scale is dirty
2
LM Guide is dirty
There is dirt in the teeth
3
of the gear

6-6 MISSING DOT OR DEFLECTED-FIRED DOT APPEARS WHEN PERFORMING PRINTING WITH LONG DELAY

NO CHECKING POINT
Check the main power
1
switch
ACTION
Manual Cleaning User's Manual
Use the media clamps/
Replace with a suitable
media
Perform [PERIODIC CL] User's Manual
Wiper Replacement User's Manual
[3-8 INK TUBE
Ink Tube Replacement
REPLACEMENT]
[3-1 HEAD
Head Replacement
REPLACEMENT]
ACTION
Clean / Replace Encoder [3-12 ENCODER SCALE
Scale REPLACEMENT]
Clean LM Guide
Clean the gear
ACTION
Do not switch off the
User's Manual
main power
REFERENCE
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.
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.
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.
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.
When the ink tube is broken, it is not possible to keep the ink
line air tight and results in ink dropping.
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.
REFERENCE
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.
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.
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.
REFERENCE
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
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