Xerox WorkCentre 220

Detection Timing

• The LOCK signal remains HIGH or LOW continuously for a predetermined period of time while the Cooling Fan Motor remains energized.

Relevant Electrical Parts

• Cooling Fan Motor (M2)
• Controller/Mechanical Control Board (PWB-P) Power Unit (PU1)

Troubleshooting Procedures

Step	Action	Control Signal/ Location
1	Check the Motor connectors for connection and correct as necessary
2	Check the fan for possible overload and correct as necessary.
3	M2 operation check	PWB-P PJ13A-1 to 3 (pulse)/ 5-F
4	Replace PWB-P.