Lexmark X644E Service Manual - Page 144
Error code service check, gears, motor, belts
UPC - 734646093156
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7002-xxx 291.02 Error code service check Second ADF scan sensor (A) jam. A Note: Before starting this service check, make sure the sensor cable is correctly installed. FRU 1 ADF 2 ADF feed gears and hardware 3 Second scan sensor cable (second scan sensor to CN9 on the MDC card) Action The second scan sensor has detected the leading edge of the sheet but did not detect the training edge. The first scan sensor detected the leading edge. Enter the Diagnostics Menu (turn on MFP while holding 3 and 6), select SCANNER TESTS, and select Feed Tests. Load several sheets through the ADF to check for any jams prior to the second scan sensor. If the jam is persistent, go to Step 2. Check the ADF feed gears, pulleys, and hardware for any signs of binding, broken, or damaged parts. If any problems are found, replace the complete ADF assembly. See "ADF complete assembly removal" on page 4-15. Note: Whenever the complete ADF assembly is replaced, it is necessary to perform scanner registration. See "Scanner registration" on page 4-4. Note: To help isolate a problem with the ADF feed system you can run the Feed Test from the SCANNER TESTS in the Diagnostics Menu. Put several sheets of media in the ADF tray, and observe the gears, motor, belts, and other hardware for any signs of a malfunction that might cause the media not to reach the second scan sensor. Check to make sure the second scan sensor cable is correctly installed at the sensor at CN9 on the MDC (motor driver card in the ADF). If the cable is not installed correctly, reinstall the cable. If installed correctly, go to step 4. 2-106 Service Manual