Lexmark T632 Service Manual - Page 94
Paper Jam Check Tray, is empty. Tray
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4060-xxx Paper size switch not selecting paper size that is selected. FRU 1 Paper size switch High-capacity feeder option control board Action Check for continuity between the common pin (J5-1) and the pin of the paper size selected. Pin Color Paper size J5-1 Black Common lead J5-2 Blue B5 J5-3 Green Executive J5-4 Yellow A4 J5-5 Orange Letter J5-6 Red Legal J5-7 Brown A5 If any position does not measure continuity when selected, replace the paper size switch assembly. If the switch assembly is operating correctly, replace the high-capacity feeder option control board. 24x Paper Jam Check Tray x displays when tray x is empty. Tray x does not display. FRU 1 High-capacity feeder option control board 2 Elevator top optical sensor cable Elevator top optical sensor Action Check the voltages on the board at J4-1(red) and J4-3 (blue). The voltages measure approximately +5 V dc. If incorrect, disconnect J4 from the board and measure the voltages again. If incorrect, replace the high-capacity feeder option control board. Check the continuity of the sensor cable. If incorrect, replace the cable. If correct, replace the top optical sensor assembly. Tray x Empty displays. Tray does not respond to loading paper. No response from the front door switch. FRU 1 High-capacity feeder option control board 2 Elevator top optical sensor cable Elevator top optical sensor Action Check the voltage on the board at J4-2 (green). The voltage measures approximately +5 V dc. If incorrect, disconnect the cable at J4 and check the voltage again. If incorrect, replace the high-capacity feeder option control board. Check the continuity of the sensor cable. If incorrect, replace the cable. If correct, replace the top optical sensor assembly. 2-60 Service Manual