EBS-6100
Printer User's Manual
Paragraph 6 - SERVICE and maintenance
EBS
Ink-Jet Systems
®
110
20070529#20.5
6.3.4.
No nominal ink pressure can be generated by the pump
PROBLEM REMEDY
No nominal ink pressure
can be generated inside the
ink system. The
FILL. ERR./PRESS.DROP
error occurs and the
message
INK PRESSURE DROP
is
displayed on the
terminal.
EBS
The main ink filter is soiled heavily. It needs checking every
1000
hours of operation and possibly replacing. See section
6.3.5
paragraph
Replacing the Main Ink Filter
. If it gets dirty too
frequently, this means that ink inside the ink system is
contaminated or the structure of ink particles has changed.
NOTE:
The cleaning of filters shall not follow directly the
CLEAN NOZZLE
,
FAST OFF
or
INK OFF
commands or
the switching on of the printer if it was switched off in the
regular mode (with rinsing). It is advisable to wait until
impurities deposit on the filter.
Ink leakage on the line between the ink pump and the head.
Locate the leakage and seal the line.
A leak between the cylinder
R3
and the ink pump. The pump
sucks both ink and air. Locate the leak and remove it.
The ink pump seems to be worn out. Replace it.
6.3.5.
Occluded Ink Filter in the Gun
PROBLEM REMEDY
The viscosity (density) of
ink has decreased
excessively
(below -10)
. If it
goes down below -10, a
phase error may occur. It
may increase temporarily
(even to the value close to
+00) after the
CLEAN NOZZLE command
has been executed, but
then it goes down regularly.
The quality of print may
worsen.
The message
PHASE
ERROR may be
displayed.
The ink filter in the gun has collected a lot of dirt. Check the ink filter
in the gun every
1000
hours of printer operation (when you check the
condition of the main ink filter) and replace it, if need be (see
Replacing the Main Ink Filter
). If this filter needs replacing too
frequently, it means that the main ink filter is dirty or there are
changes in the ink structure.
NOTE
The cleaning of filters shall not follow directly the
CLEAN NOZZLE
,
FAST OFF
or
INK OFF
commands or
the switching on of the printer if it was switched off in the
regular mode (with rinsing). It is advisable to wait until
impurities deposit on the filter. The replacement of the
main filter may result in heavy dilution of ink. Before
starting the printing wait until any excess solvent
evaporates and the ink viscosity recovers its nominal
value.
Replacing the Main Ink Filter
It is recommended that an ink filtering procedure be followed before the printer’s main ink filter
is replaced. The objective of this activity is to free ink of contaminants of any type, which
might have appeared during printer operation and to remove them when the filter is replaced.
The ink filtering procedure consists of the following steps:
•
Select
the
FAST OFF
command,
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