Xerox WorkCentre 220

Detection Timing

• The LOCK signal is not detected within a predetermined period of time that begins 1 sec. after the Polygon Motor has been energized.
• No new LOCK signal is detected for a 1-sec. period that begins 1.5 sec. after the first LOCK signal was detected.
• The LOCK signal is not detected for a continuous 0.5-sec. period in a state in which the Polygon Motor runs stably.
• The LOCK signal remains ON for a continuous 5-sec. period or more when the Polygon Motor remains deenergized.

Relevant Electrical Parts

• PH Unit
• Flat cable
• Controller/Mechanical Control Board (PWB-P)

Troubleshooting Procedures

Step	Action	Control Signal/ Location
1	Check cables for connection and correct as necessary.
2	Replace PH Unit.
3	Replace PWB-P.