Lexmark Optra T Service Manual - Page 78

4069-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 Solenoid The operation of the fuser 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. The resistance measures between 5 ohms and 10 ohms. If incorrect, replace the solenoid assembly. 2 Fuser Control Board The solenoid receives power from the engine board. The fuser control board receives +42Vdc from the LVPS via the interconnect board. Check for approximately +42 V dc at the +42 V dc test point on the fuser control board. If the voltage is correct, replace the fuser control board. 3 LVPS Interconnect Board If the +42 V dc test point does not measure approximately +42 V dc, check the voltage at CN3-18 on the LVPS. The voltage measures approximately +42 V dc. If the voltage is correct, replace the interconnect board assembly. If the voltage is incorrect, replace the LVPS. 4 Fuser DC Cable (Engine Check for continuity of the DC fuser Board to Fuser Board Cable) cable that is attached between J2 on Engine Board the engine board and J1 on the fuser control board. If the cable does not measure continuity, replace the cable. If the cable measures continuity, replace the engine board. 2-50 Service Manual