Service Checks; Abnormal Noise Service Check - Lexmark 2380 - Forms Printer B/W Dot-matrix Service Manual

Service Checks

Abnormal Noise Service Check

Check the entire printer for loose parts.
FRU
1 Ribbon Cartridge
2 Printhead
3 Carrier Motor
Ribbon Drive
Mechanism
4 Paper Feed
Mechanism
2-14
Action
Remove and reinstall the ribbon cartridge.
Disconnect the printhead cables.
Run the print test (do not fold or damage the
cables during the test).
Replace the printhead if the noise is gone.
Disconnect the carrier motor connector CN9
from the main logic board, and turn the printer
off and then on.
If the abnormal noise is gone, look for a
problem with the carrier motor or ribbon drive
mechanism.
Disconnect the paper feed motor from CN10
from the main logic board.
Perform the Print Test.
If the abnormal noise is gone, look for the
problem in the paper feed mechanism.