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4092
Parallel Port Service Check
FRU
1
Parallel Port
Power Service Check
An Error Code 92 is caused by a shorted Print Cartridge, or a short
in the circuit to the Print Cartridges. If the problem is an Error Code
92, replace the Print Cartridges. Continue with this Service Check if
the symptom does not change.
FRU
1
Print Cartridges
Power Supply
3
Printhead Cable
Parallel Cable
Encoder Card
4
System Board
Action
Run a test page to be sure the printer can print.
Run the
"Parallel Port Test" on page
fails, replace the system board.
Action
If the problem is an Error Code 92, replace the
print cartridges.
Disconnect J9 from the system board and check
the following voltages on the power supply cable:
• J9-1 to GND = +5 V dc
• J9-2 to GND = +30 V dc
• J9-4 to GND = +11.75 V dc
If you do not have correct voltage, replace the
power supply. Be sure to unplug the printer before
you reconnect the power supply to the system
board.
Turn off the printer. Disconnect one of the
printhead cables and turn on the printer. Look for a
symptom change. Check the failing part for shorts
and replace as necessary. Repeat this procedure
for the parallel cable and the encoder card.
If the symptom has not changed, replace the
system board.
Diagnostic Information 2-11
3-5. If the test
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