Lexmark C520 Service Manual - Page 42

5022-xxx Service checks 110.xx-Mirror motor service check Step Questions / actions 1 Turn the printer off, and remove the rear cover. Check the connector JMIRR1 for proper connection to the system card, the printhead cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? 2 Replace the printhead. See "Printhead removal" on page 4-74. Does the error clear? Yes Replace the printhead. See "Printhead removal" on page 4-74. Problem solved. No Go to step 2. Replace the system card. See "System card removal" on page 4-79. 111.xx, 112.xx, 113.xx, and 114.xx-Printhead error service check Step Questions / actions Yes 1 Is the front access door completely closed? Go to step 2. 2 Turn the printer off, and remove the rear cover. Replace the front access Check the connector JINT1 (5 V interlock door 5 V interlock switch. switch cable) for proper connection to the See "Front access door system card, the cable for pinch points, and the 5 V interlock switch cable or connector for any other damage. removal" on page 4-54. Is the cable damaged? 3 Turn the printer power on, and check for 5 V dc between JINT1 pin (red wire) and ground. Is voltage present? 4 Replace the printhead. See "Printhead removal" on page 4-74. Does the error clear? Replace the front access door 5 V interlock switch. See "Front access door 5 V interlock switch removal" on page 4-54. Problem solved. No Properly close the door. Go to step 3. Go to step 4. Replace the system card. See "System card removal" on page 4-79. Diagnostic information 2-27