Troubleshooting
SECTION 06 Troubleshooting
11/54
A / D
No.
Description Context
Consequences
Check / Cause / Remedy / Solution
70
A
Ink concentration
out of
specifications
During printing the working
pressure required for proper
jet speed is outside the P =
f(T) curve.
This alarm may be caused by
too much or too little additive
in the ink.
Consequences:
Poor print
quality.
1- Check the following parameters:
Ink
Head height difference
Ink and additive reference and use-by date.
2- Check the reference pressure (PRef) against
the actual pressure measured in the
accumulator (PAcc).
If PAcc < PRef: There is too much additive in the
ink.
Avoid stopping and starting the printer
repeatedly.
Let the printer adjust the concentration itself.
If PRef < PAcc: There is too little additive in the
ink.
Check the additive cartridge
Let the printer adjust the concentration itself.
3- Auto-calibration
71
D
Ambient pressure
measurement
failed
The atmospheric pressure is
measured by solenoid valve
4 and the condenser each
time the printer is started. If,
after 3 attempts, the value
measured is not 0 bar ±
300 mb, the pressure sensor
is defective.
Consequences:
The IMM
stops and printing is
disabled.
1- Test solenoid valve 4
2- Check the condenser vent
3- IMM
72
D
Motor
synchronisation
incorrect
The printer does not detect a
sufficient difference in
pressure between the pump
top dead center and the
bottom dead center at start-
up and during operation.
Consequences:
The IMM
stops and printing is
disabled.
1- Test solenoid valves 0, 1, 2, 3, 4, 5, 6 and 10.
2- Make sure there is no ink in the air pump.
(Kapsto 6?)
3- Make sure the motor is running.
4- IMM.
Auto-calibration?
