Engine Controller Pwb - Xerox DocuPrint P1202 Service Manual

5.5 Engine Controller PWB

The Engine Controller PWB:
• Includes a motor driver that provides the signal necessary to turn the Main Motor.
• Provides the control signal that energizes the paper pick-up solenoid.
• Includes a temperature control circuit that monitors the fuser temperature and turns the heat rod on
and off.
• Monitors the signal from the Cover Open Sensor. If the front cover is open or the Developer unit is
out of the machine or installed correctly the printer will not operate.
• Provides the control signals necessary to operate the laser.
• Identifies the installation of a new Print Cartridge.
The Engine Controller PWB monitors four paper sensors.
• Feed Sensor: Located before the transfer process. Senses if paper is feeding and starts the
process of sending image data to the laser.
• Exit Sensor: The Exit Sensor is located next to the fuser and monitors paper travel in the fuser
area.
• Paper Detect Sensor: This sensor senses if there are papers in the Multipurpose Paper Feeder.
• Paper Width Sensor: Located on the side of the paper path, this sensor is used to detect narrow
paper.
General Procedures and Information
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