EBS
Ink-Jet Systems
®
EBS-6100
Printer User's Manual
Paragraph 4 - Operating the Printer
20070529#20.5
65
4.4.4.
Servicing the Head
4.4.4.1. Service
Mode
In the main MENU select the
SERVICE
item and then the
SERVICE
item.
The command is used to switch the printer to the
service
mode (see section
4.3
Print Head Status
). No alarm is indicated if a phasing error occurs. Service
operations can be performed within the head because phasing errors are ignored.
The
START PRINT
command makes the printer exit the
service
mode and enables
the indication of alarms if a phasing error occurs.
4.4.4.2. Sucking
Ink/Solvent
In the main MENU select the
SERVICE
item and then the
CLEAN NOZZLE
item.
This command is used to clear the nozzle by sucking out ink from the nozzle and the
gun (for about 2 seconds). Then the system returns to its previous condition. The
green lamp indicator
V1
on the external panel emits light during the operation. The
CLEAN NOZZLE
command should be used, if the ink jet fails to reach the gutter after
the ink flow has been turned on or if the nozzle has clogged during the operation. If
the ink flow has been stopped intentionally with the
INK OFF
or
FAST OFF
command, the command is ignored.
NOTE:
•
The command is not executed during printing.
•
After the command has been executed, the printer switches to the
restart
mode
for about 1 minute.
4.4.4.3. Closing and Opening the Ink Valve
The
V0
valve opens/closes the ink flow towards the head. The valve open and
close commands are used to clear the nozzle or ink filter inside the gun. The
commands do not cause the ink to be sucked out of the nozzle and the gun and
therefore any impurities gathered on the ink filter or in the nozzle are not pulled back.
The ink valve can be closed and opened in two parallel and independent ways:
•
With commands entered via the terminal,
•
With
the
INK ON/OFF
key on the main pad of the external panel (the
V0 OFF
and
V0 ON
commands are executed consecutively as the key is pressed). The key
can be used regardless of where the cursor position within the whole control
menu is (for example, the valve can be closed/opened during the edition of a text
file).
In the main MENU select the
SERVICE
item.
Closing the V0 Valve
Select the
V0 OFF
option and confirm the selection or press the
INK ON/OFF
key on
the main pad of the external panel. After the command has been executed, the
V0
valve is closed and the green lamp indicator
V0
on the internal panel goes out.
If the ink flow is stopped, the following warning message is displayed:
IN 15 MIN. THE INK STREAM
HAS TO BE ON !!!!
The objective is to warn the printer operator that the
V0
valve has been closed. If the
V0
valve remains closed for too long, the gun may dry up and the nozzle get clogged
or even the entire ink system may dry up. If the ink flow is not turned on during the
indicated period, an alert signal is generated and another warning message is
displayed:
OPEN V0 OR THE PRINTER
WILL BE SWITCHED IN 1 MIN. OFF !!!
!
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