Lexmark Medley 4012-005, Руководство по обслуживанию

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Diagnostic Information
16
4012-0XX
Print Quality Service Check
FRU Action
1 Print Cartridge Be sure the machine has a known good
print cartridge.
2 Printhead Carrier Assembly Reseat the printhead cables in the printer
board and check the following parts for
wear or damage:
• Print Cartridge Latch
• Latch Spring
• Carrier
3 Printer Board
Printhead Cable
Rubber Backer
Perform the “Purge Test” on page 25 . Look
for a break in the diagonal line at the bot-
tom of the test pattern. A broken line indi-
cates one or more print nozzles are
clogged. Run the test again to verify the
failure. If there are even breaks in the diag-
onal line similar to the pattern shown
below, replace the printer board.
If there is a single break or random breaks
in the diagonal line check the following:
Check the gold-plated contacts on the end
of the cable that connects to the carrier for
dirt and wear. Use only a clean dry cloth to
clean the contacts. Also check the cable
for damage. You may need to remove the
cable from the carrier to inspect it.
A worn rubber backer will result in poor
contact between the printhead cable and
the print cartridge. Check the rubber
backer for wear.
4 Maintenance Station Intermittent nozzle failures can be caused
by worn parts in the maintenance station.
Go to and perform the
“Maintenance Sta-
tion Service Check” on page 9 , then return
to this check.