Lexmark C750 Service Manual - Page 143

5060-00x Tray x autocompensator fails to retract, stays in down position. Step 1 Action and questions Use care when removing a tray assembly when the autocompensator is in its down position. Remove the tray and manually reset the autocompensator to its uppermost position by actuating the pick arm lift bellcrank. Does the autocompensator assembly stay in the up position? 2 Carefully replace the tray and recheck to see if the autocompensator operates correctly. Does the autocompensator assembly operate correctly? 3 Make sure the autocompensator pick arm lift bellcrank is installed correctly. Is the pick arm lift bellcrank installed correctly? 4 Check the following for loose, broken or missing parts: • Boss on the side of the arm • Bellcrank lift spring • Tray interlock bellcrank Are any of these parts loose, broken or missing? Repair or replace as necessary Call your next level of support. Go to step 4 Install the bellcrank correctly Problem solved Go to step 3 Yes Go to step 2 No Go to step 3 The printer does not detect paper low in Tray x when adequate paper is installed in the tray. Step 1 Action and questions Run tray x sensor test from the Diagnostics Menu. Does the test pass for sensor L2? 2 Check the cable connection for the paper low/out sensor to tray x system board. Is the cable correctly installed? 3 Check the paper level sensing assembly for correct installation. Check the following for damaged or broken parts: • Paper level sensing flag bellcrank. • Paper level sensor is seated correctly. • Paper level sensing flag. • Paper level sensing flag spring. Is the paper level sensing assembly installed correctly? 4 Is the paper level sensing assembly damaged or broken? Replace the paper level sensing assembly Go to step 4 Install the paper level sensing assembly correctly Go to step 3 Install the cable correctly Yes Go to step 3 No Go to step 2 Diagnostic information 2-109