Troubleshooting
SECTION 06 Troubleshooting
14/54
A / D
No.
Description Context
Consequences
Check / Cause / Remedy / Solution
83
D
Ink concentration
out of range
The pressure during
operation is far outside
tolerances in the curve
P = f(T)
(P < 1.5 bar or P > 4 bar)
This fault follows alarm 70,
the ink quality continues to
drop.
The ink may be too thin or
too concentrated.
Consequences:
The printer
cannot print.
1- Check the faults 53 and 70
in this table
2- Rinse the printer.
3- Check the ink type additive used on the
cartridges.
Make sure that these are the appropriate
consumables.
4- Check the ink and head height difference
parameters.
5- Auto-calibrate
6- CPU
84
D
Head cover
absent
For reasons of safety, the
EHV is cut when the cover is
removed.
Consequences:
The printer
cannot print.
1- Cover, magnet
2- IM
Connections, cut wire in conduit
3- CPU
85
D
Recovery not
detected. Jet out
of gutter.
The recovery detector did not
detect the jet in the gutter or
detected too weak recovery
during jet start-up or during
operation.
Consequences:
The jet stops.
1- Jet
Presence (Pressure, pressure SV, A head SV,
modulation assembly or jet obstructed)
Stability (cleanliness of modulation assembly and
jet)
Centering in gutter (nozzle cleanliness, gutter
adjustment)
2- Intake
Gutter obstructed (recovery assembly)
Gutter SV stuck
Negative pressure (Ptamp: xxmb)
If Ptamp ≈ -0.3 b: head
If Ptamp ≈ 0.02 b: IMM
3- Electronics
Recovery assembly (broken pin)
Gutter SV (control)
IM, CPU
4- Ink
Concentration (ink parameters, head height
difference,
auto-calibration
)
Quality (dust, moisture), use-by date
86
D
High Voltage
supply failure
Unwanted EHV detected on
the deflection plates by the
printer.
Consequences:
The jet
stops. Printing is disabled.
1- EHV block
2- CPU
