Lexmark T522 Service Manual - Page 88

4520-xxx Fuser Solenoid Service Check Service Tip: Try changing the envelope enhance level setting. A different setting may correct the problem. Note: Check the fuser envelope conditioner solenoid adjustment as described in the adjustment section "Fuser Solenoid Adjustment" on page 4-3. FRU Action 1 Fuser Envelope Conditioner The operation of the fuser solenoid Solenoid can be observed by removing the redrive assembly. Check for proper mechanical operation of the solenoid and associated hardware, link and so on. If correct, check the resistance of the solenoid between J4-1 and J4-2 on the fuser control board. The resistance measures between 5 ohms and 10 ohms. If incorrect, replace the solenoid assembly. 2 LVPS 3 DC Fuser to Engine Board Cable Check the voltage at CN3-18 on the LVPS. The voltage measures approximately +42 V dc. If incorrect, replace the LVPS. Check the continuity of the DC fuser to engine board cable. If incorrect, replace the cable. 4 Fuser Control Board Check for continuity between J4-2 and J1-5 and J4-1 and J1-7 on the fuser control board. If incorrect, replace the fuser control board. 5 Interconnect Board Engine Board If no problems are found with the fuser solenoid, LVPS, DC cable or fuser control board, replace the FRUs in the following order: 1. Engine board 2. Interconnect board 2-60 Service Manual