EBS EBS-6100 - Page 72

 EBS-6100 Printer User's Manual
 Paragraph 4 - Operating the Printer
EBS
Ink-Jet Systems
®
 70
20070529#20.5
0
3
2
1
4
5
6
7
8
9
10
Deflecting electrode (HV)
U
phase
=-6,5 V
Microscope scale
V
E
Printing
D
Y
X
P
Q
g=0,15mm=0,6deg
Neutral
C
B
A
Z
d=0,125mm
Phasing
Gutter
(X=Y)≥1deg
Z≥1deg
V≥1deg
Fig. 4.4.4.8.3. Adjusting the ink-jet position in relation to the gutter
g=0.15 mm (0.6 deg) - thickness of the gutter wall,
d=0.125 mm (0.5 deg) - drop diameter,
P=about 2 mm (8 deg) - outer diameter of the gutter.
10) Five ink jets A, B, C, D, E (see Fig. 4.4.4.8.3) can be observed with
a microscope (grey dots - see the Note below). Adjust the gun position (screws
V3 and V4) so that margins X and Y are the same. The following conditions
need to be met at the same time: (X=Y)≥1 deg, Z≥1 deg and V≥1 deg, where
1 deg = 0.25 mm stands for one microscope scale degree. Z is the distance
between the lowest phasing drops (for U
phase
=-6.5V) and the lower inner edge of
the gutter. V is the distance between the most deflected drops used for printing
and the upper edge of the deflecting electrode.
NOTE:
• The operation of the SET INK STREAM command is limited to about
15 seconds in order to provide protection against the consequences which might
be suffered if the command is issued by mistake and because the phase
determined by the phasing circuit may change. Press the
V key to resume
the operation of the command.
• High-contrast dots can be observed with a microscope, if the SET INK STREAM
command precedes the STROBOSCOPE command - see section
4.4.4.9 Switching the Stroboscope Over.
• In addition, when the stroboscope LED is synchronized on the basis of rows
, the
position of the drops observed can be shifted horizontally in relation to the gutter
during the execution of the SET INK STREAM command, by pressing any
terminal key except the
U and V keys.
11) Press the U terminal key to terminate the execution of the SET INK STREAM
command.
12) Wait at least 30 seconds until the phasing stabilizes.
13) Repeat the SET INK STREAM command only to check whether margins X and
Y are the same for other automatically determined phases and whether ink
drops reach the gutter without catching on it from inside or outside.
14) Press the
U terminal key to terminate the execution of the SET INK STREAM
command.
!