SECTION 5 Troubleshooting
0855855eng 6/08 5–7
Symptom Possible Cause / Problem Reference / Action
Printhead Will Not
Heat
Printhead not enabled SE, 4, LED Indicator on the
Printhead
IN, 3, PH Enable
SE, 4, Printhead 1-4; State
Corrupted array or reservoir
temperature set point
IN, 3, Array Temperature
IN, 3, Reservoir Temperature
Electrical connection IN, 2, Connecting Vacuum and
Electrical Lines to the I/O
Panel
IN, 2, Connecting Umbilical
Lines to the Printhead
Control Board failure SE, 6, Replacing the Control
Board
Printhead Volt Board failure SE, 6, Replacing the
Printhead Volt Board
Open over-temperature
thermostat.
An automatically resettable
thermostat in the printhead
protects the printhead from
runaway heat. The thermostat
will take over as a heat control,
but not at the ideal operating
temperatures.
Check machine parameters
for proper settings.
SE 4, Ink System; Printhead
Array Temperature
SE 4, Ink System; Printhead
Reservoir Temperature
IN, 3, Array Temperature
IN, 3, Reservoir Temperature
Printhead failure Array / Reservoir thermistor SE, 6, Replacing the
Printhead
Array / Reservoir heater SE, 6, Replacing the
Printhead
Head Interface Board SE, 6, Replacing the
Printhead
Printhead Stuck in
Standby
No trigger selected IN, 5, Cannot Change the
Print Trigger Parameter
IN, 3, Print Trigger
Enclosure Ink Leak
Ink Delivery Module
(IDM)
Melt chamber Check for melt chamber
overflow.
Check that melt chamber is
tightly secured to the holding
chamber.
Check for pinched or broken
O-ring. Replace if necessary.
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