Lexmark C510 Service Manual - Page 173

Tray empty service check Step Questions / actions Yes 1 Remove paper tray from Go to step 2. printer. Press bottom of spring platform latches located in rear corners of paper tray. This releases spring platform of paper tray. Ensure tray is raising paper after insertion. Is tray working properly? 2 Ensure paper empty Go to step 3. sensor flag swings with ease and is not broken or damaged. Is flag working properly? 3 Turn printer off and remove Go to step 4. I/O board shield. See "I/O board removal" on page 4-70 for steps to remove I/O board shield. Is cable properly connected to I/O board connector DCN16? 4 Reconnect operator panel. Go to step 5. Turn printer on. Touch negative lead of voltmeter to metal bracket that holds I/O board to obtain ground. Touch positive lead to DCN16 pin 7 to ensure 5 VDC is being supplied to paper empty sensor. Is 5 VDC present? 5 Insert empty paper tray into Go to step 6. printer. Check voltage level on DCN16 pin 8. Is 5 VDC present? 5021-0XX No Replace paper tray. Replace paper guide (C) assembly . See "Paper guide (C) assembly removal" on page 4-47. Properly connect cable. Go to step 8. Go to step 7. Diagnostic information 2-95