Lexmark 7000 Color Jetprinter, Service Manual

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Diagnostic Information 2-11
4092
Parallel Port Service Check
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 Action
1 Parallel Port Run a test page to be sure the printer can print.
Run the
“Parallel Port Test” on page 3-5 . If the test
fails, replace the system board.
FRU Action
1 Print Cartridges
Power Supply
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.
3 Printhead Cable
Parallel Cable
Encoder Card
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.
4 System Board If the symptom has not changed, replace the
system board.