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2-6 Service Manual
4085-001
930 Black Printhead - P-lines shorted
or Substrate Heater shorted
Color Printheads - P-lines
shorted or Substrate Heater
shorted
Both Printheads - P-lines shorted
or Substrate Heater shorted
Check all contacts and
cables. If tests fail, replace
the printheads. If failure
still occurs, replace engine
board.
931 Black Printhead - Engine cannot
communicate with Printhead
Memory
Color Printhead - Engine cannot
communicate with Printhead
Memory
Both Printheads - Engine cannot
communicate with Printhead
Memory
Check the printhead and
tank contacts.Check the
carrier to engine cables.
Check the printhead and
tank memory chip
placement.
If the problem remains,
replace the engine board.
See the “Engine Board /
Cover Removal” on
page 4-14 .
932 Black Printhead - Contents of
Printhead Memory are invalid
Color Printhead - Contents of
Printhead Memory are invalid
Both Printheads - Contents of
Printhead Memory are invalid
Replace printheads. See
“Change Printheads” on
page 3-4 . If contents of
printhead memory are still
invalid, replace engine
board. See “Engine Board
/Cover Removal” on
page 4-14 . Check carrier
cables.
933 Printhead System - Failure
measuring a calibration resistor.
The debug data identifies the
resistor being measured and the
type of failure: value too low,
value too high, or value=zero.
Check the printhead/
carrier contacts. Try
replacing the printheads
before replacing the
carrier. Check the carrier
cable. If cable is OK,
replace carrier. See
“Carrier/Cable Retainer
Removal” on page 4-48 .
Try replacing both
printheads. If problem
remains, replace engine
board. See “Engine Board
/Cover Removal” on
page 4-14 .
Error Symptom Action