Lexmark 1000 Color Jetprinter Service Manual - Page 25

Execute the Clean Print Nozzle in Cartridges

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4096-00X FRU / Function 4 System Board Printhead Cable Rubber Backer Action Execute the "Clean Print Nozzle" in "Cartridges" of the Printer Control Program. Look for a break in the diagonal line of the test pattern. A broken line indicates one or more print nozzles are not working. Run the test again to verify the failure. If there are even breaks in the diagonal line similar to the pattern shown below, ensure the printhead cables are connected properly. If the symptom remains, replace the system board. 5 Maintenance Station 6 Paper Feed 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 connect 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 results in poor contact between the printhead cable and the print cartridge. Check the rubber backer for wear. Intermittent nozzle failures can be caused by worn parts in the maintenance station. Perform the "Maintenance Station Service Check" on page 2-7, then return to this check. Ink smudging and smearing can be caused by paper problems or problems in the paper feed area. Check the following: • Correct type of paper is being used. Also check the paper for curl or wrinkles. • Feed rollers for wear, dirt, or looseness. • Gears for wear or binds. • Paper path for obstructions. Diagnostic Information 2-13

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Diagnostic Information
2-13
4096-00X
4
System Board
Printhead Cable
Rubber Backer
Execute the “Clean Print Nozzle” in “Cartridges” of
the Printer Control Program. Look for a break in
the diagonal line of the test pattern. A broken line
indicates one or more print nozzles are not
working. Run the test again to verify the failure. If
there are even breaks in the diagonal line similar to
the pattern shown below, ensure the printhead
cables are connected properly. If the symptom
remains, replace the system 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 connect 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 results in poor contact
between the printhead cable and the print
cartridge. Check the rubber backer for wear.
5
Maintenance
Station
Intermittent nozzle failures can be caused by worn
parts in the maintenance station. Perform the
“Maintenance Station Service Check” on
page 2-7
, then return to this check.
6
Paper Feed
Ink smudging and smearing can be caused by
paper problems or problems in the paper feed
area.
Check the following:
•
Correct type of paper is being used. Also check
the paper for curl or wrinkles.
•
Feed rollers for wear, dirt, or looseness.
•
Gears for wear or binds.
•
Paper path for obstructions.
FRU / Function
Action