EBS-230
Printer User's Manual
20080512#1.0
_____________________________________________________
53
4.
The printer prints various combinations in a loop-like sequence; in order to move from one
combination to the other press the
PRINT ON/OFF
button. The following sequence is used:
a). the first test text, whose contents are shown below:
time-type special register
incremental counter-type special register
Fig. 4.3.3.3.
The following settings are used:
Dot size
=1
,
Text width
=500
,
Conv speed
=10
,
b). the second test text of the contents as above and the parameter
Dot size
set to
0
,
c). printing with no nozzle – this is indicated by the quick flickering of all lamps at the same time,
d). successive prints made with one nozzle only, from the 1
st
to the last one; and the parameter
Dot size
set to
7
; the following nozzle is chosen by pressing the
PRINT ON/OFF
button,
e). a print made with all nozzles at the same time and the parameter
Dot size
set to
7
,
f). return back to combination
in order to repeat the entire sequence.
5.
Set the option of printing only with the nozzle
whose valve needs adjusting (the nozzle
regulation number is on the LED indicator on
the print head panel).
6.
Fit a TORX-tipped screwdriver number
T6
into
the adjusting screw of the nozzle that has
previously been chosen in the sequence of
various combinations of prints. Turn the screw
into its place until ink droplets start flowing out
of the nozzle. Electromagnet numbers are
engraved on their plastic bodies - see
7.
While turning the screwdriver and moving a
sheet of paper perpendicularly to the axis of
the nozzle at a distance of 10 mm, adjust the
size of dots as required. The dot must be
round in shape with no satellites or splashes
around.
8.
Set the printing with another nozzle by
pressing the
PRINT ON/OFF
button on the
printer panel.
valve adjustment screws
TORX
tip
number of the valve under
control is displayed here
Fig. 4.3.3.4
9.
Adjust other nozzles by following steps from
to get dots of one size for all nozzles.
10.
On adjusting the last nozzle, turn them all on at the same time and while turning the adjusting
screws of the nozzles clockwise or counter-clockwise (by the maximum of ¼ of the rotation)
shape all dots so that they are all of a similar size.
11.
Reduce the intensity of ink droplets to the value of
0
(
Dot size
=0
) and re-adjust the screws by
following steps from
12.
Switch the printer off and on in order to exit the
service
mode and the valve adjustment
procedure.
13.
Check what the deflection of ink jets from the axis of the nozzle is. To this end, observe ink jets on
a light background with the rinsing operation being performed in the printer at the same time (hold
down the
PRINT ON/OFF
button). At the distance of 60
÷
80 mm from the front of the print head
and at the rated ink pressure, the ink jets must be neither deflected from the axis by more than 2
mm on the horizontal and vertical planes nor crossed. If this requirement is not met, clean the
nozzles – see section
Choked nozzles in the print head
. If this does not help, replace the
nozzle plate and follow the adjustment procedure from step
. Should no positive results be
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