Lexmark 2380 Service Manual - Page 38

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 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. 2-14