Print Quality Service Check - Lexmark X125 Service Manual

4412-00X

Print Quality Service Check

FRU / Function
1 Printhead
Cartridge
2 Color Printhead
Cartridge Cross
Contamination
3 Carrier Assembly
4 System Board
Carrier
Assembly
5 Maintenance
Station
2-16
Service Manual
Action
Be sure the machine contains good print
cartridges.
Cross contamination of color inks results in
incorrect colors printed, as when green prints for
yellow, (when yellow and blue are mixed in the
printhead cartridge). This problem resolves quickly
as the printhead cartridge is used.
If cross contamination occurs, check the following:
• The maintenance station wiper for damage.
• The printhead nozzle plate was resealed with
tape.
Reseat the printhead cables in the system board
and check the following parts for wear or damage:
• Printhead Cartridge Latch
• Latch Spring
• Carrier
Print the self test page. To enter the self test page,
press Setup and then Menu button until "Print
Report" is displayed. Press Options button until
"Self Test" is displayed. Then press the to print the
self test page. Look for a break in the diagonal line
of the nozzle test pattern. A broken line indicates
one or more print nozzles are not working. Run the
test again to verify the failure.
Check the gold-plated contacts on the end of the
printhead carrier cable for dirt, wear, and damage.
Use only a clean dry cloth to clean the contacts. If
a problem is found with contacts on the carrier,
replace the carrier. Go to the
with Belt Removal" on page
If the symptom remains, replace the system board.
Go to the "System Board Removal" on
page 4-19.
Intermittent nozzle failures can be caused by worn
parts in the maintenance station. Go to the
"Maintenance Station Removal" on page
and then return to this check.
"Carrier Assembly
4-18.
4-17,