Causes: LD Signal is detected for 1 seconds continuously while the Fuser Motor is rotating.
Remedy: Fuser Motor (M3) Are the connectors connected with the Fuser Motor (M3) properly? No Connect properly. Control PCB (PW10620) Enter the Service Mode and select the Output Test 1 of the Function Checking Mode. (Refer to the page 8-28.) Make the Fuser Motor work. 1. Does the voltage between CN109-1 (+) and GND (-) on the Control PCB (PW10620) change to about 3.8V to 0V when the Fuser Motor rotates? 2. Is the voltage between CN109-3 (+) and GND (-) on the Control PCB (PW10620) about 2V? 3. Is the voltage between CN211-3 (+) and CN211-6 (-) on the Control PCB (PW10620) about 24V during the Ready condition? No Replace the Control PCB (PW10620) with the new one. Fuser Motor (M3) Motor Control PCB Replace the Fuser Motor (M3) or the Motor Control PCB with the new one.