Lexmark C510 Service Manual - Page 163

Output tray full service check 5021-0XX Step Questions / actions Yes No 1 Ensure output tray full Go to step 2. sensor flag swings with ease and is not broken or damaged. Is flag working properly? Replace paper exit assembly. See "Paper exit assembly removal" on page 4-49. 2 Turn printer off and remove Go to step 3. 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 DCN7? Properly connect cable. 3 Reconnect operator panel. Go to step 4. Turn printer on. Touch negative lead of voltmeter to metal bracket that holds I/O board to obtain ground. Touch positive lead to DCN7 pin 7 to ensure 5 VDC is being supplied to output tray full sensor. Is 5 VDC present? Go to step 7. 4 Check voltage level on DCN7 pin 8. Is 5 VDC present? Go to step 5. Go to step 6. 5 Activate output tray full Replace I/O Replace paper sensor flag. Check voltage level on DCN7 pin 8. Is 0 VDC present? board. See "I/O board removal" on page 4-70. If exit assembly. See "Paper exit assembly problem removal" on persists, replace page 4-49. engine controller board. See "Engine controller board removal" on page 4-55. Diagnostic information 2-85