Enclosure Ink Leak - Dover markem-imaje 5200 Service Manual

Symptom
Printhead Will Not
Heat
Printhead failure Array / Reservoir thermistor
Printhead Stuck in
Standby

Enclosure Ink Leak

Ink Delivery Module
(IDM)
0855855eng 6/08
Possible Cause / Problem
Printhead not enabled
Corrupted array or reservoir
temperature set point
Electrical connection
Control Board failure
Printhead Volt Board failure
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.
Array / Reservoir heater
Head Interface Board
No trigger selected
Melt chamber
SECTION 5 Troubleshooting
Reference / Action
SE, 4, LED Indicator on the
Printhead
IN, 3, PH Enable
SE, 4, Printhead 1-4; State
IN, 3, Array Temperature
IN, 3, Reservoir Temperature
IN, 2, Connecting Vacuum and
Electrical Lines to the I/O
Panel
IN, 2, Connecting Umbilical
Lines to the Printhead
SE, 6, Replacing the Control
Board
SE, 6, Replacing the
Printhead Volt Board
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
SE, 6, Replacing the
Printhead
SE, 6, Replacing the
Printhead
SE, 6, Replacing the
Printhead
IN, 5, Cannot Change the
Print Trigger Parameter
IN, 3, Print Trigger
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.
5–7