Lexmark C920 Service Manual - Page 90

5056-XXX Map 11 - Paper size map Step Questions/actions Yes No 1 Do the paper size sensor actuators on the paper operation tray operate correctly as you slide the paper location plate? 2 Do the size sensor levers operate correctly? Go to step 2. Go to step 3. 3 Are the following connectors properly connected? CN4 on the expansion feeder control card (trays 2-5). 4 If the problem is in tray 1, replace the CK2 daughter board. If the problem is in an expansion tray, replace the size sensor card associated with the affected tray. Does this fix the problem? Go to step 4. Problem solved. Replace parts as necessary. Replace the size sensor levers. Properly connect the connectors. Replace the printer controller board (tray 1). Replace the expansion feeder control card (trays 2-5). 2-48 Service Manual