Alarms and faults
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Ŷ Preliminary checks
Troubleshooting must always begin with preliminary checks. These checks are used to
detect dirty parts, ink leakage or problems with electrical or hydraulic connections with the
naked eye.
Shut down the printer and disconnect from the AC power supply. Check the points
indicated below.
Check Type of problem to look for
Cabinet and operator interface Signs of impact/cutting
Printhead
Dirty electrodes. Ink leakage.
Mechanical parts damaged or out of adjustment
External
appearance
Connections for accessories.
Connectors disconnected
Cuts in cables
Tanks
Tanks open or damaged. Ink tube leakage. Ink
and additive tanks empty. Ink quality (odor,
consistency). Additive quality (odor, color).
Hydraulic piping and connections. Ink/solvent leakage. Tubing bent, damaged or cut.
Appearance of
ink circuit
Electrical connections to various
parts.
Faulty connections on:
- ink circuit-wiring harness,
- ink level detector connections (upper part of ink
tank),
- fan condition,
- viscometer,
- electrovalves wiring.
All cards present in electronics
compartment
Board missing
Connections inside electronics
compartment
Faulty connections on:
- main board,
- front panel board,
- power supply module.
Electrical connections
Faulty connections on:
- umbilical ribbon cable on main board,
- EHT block on wiring for umbilical,
- ribbon cable on the industrial interface board,
- industrial interface board terminal blocks.
Electronics and
hydraulic
compartments
Compressed air connections
Faulty connections on:
- air piping.
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