Lexmark C520 Service Manual - Page 48

5022-xxx 142.xx and 906.01-906.04-Motor (fuser) error service check Step Questions / actions 1 Is the top access door completely closed? 2 Turn the printer off, and remove the fuser. Yes No Go to step 2. Close the top access door. Lift the top access door to its widest position, and put the right bellcrank (A) into its slot. Go to step 3. A Is the right bellcrank (A) out of its slot? 3 Turn the printer off, and remove the rear cover. Check the connector JFUSER1 for the proper connection to the system card, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? 4 Turn the printer power on, and check for 24 V dc between JCVR1 pin 1 (red wire) and ground. Note: The ground lead of the voltmeter can be placed on the metal frame to obtain ground. Is voltage present? 5 Replace the fuser. See "Fuser removal" on page 4-60. Does the error clear? Replace the fuser cable. Replace the top access door 24 V interlock switch. See "Top access door 24 V interlock switch removal" on page 4-85. Problem solved. Go to step 4. Go to step 5. Replace the system card. See "System card removal" on page 4-79. Diagnostic information 2-33