Xerox WorkCentre 6505

Phaser 6500/WorkCentre 6505 Service Manual Xerox Internal Use Only 2-65
Theory of Operation
Automatic Document Feeder
ADF Components
• Document Sensor
The Document Sensor detects the presence of media on the ADF Document
Tray.
• Present: Beam is unshielded (unblocked)
• Absent: Beam is shielded (blocked)
• Cover Open Sensor
The Cover Open Sensor detects whether or not the ADF Top Cover is open.
•ADF Board
The ADF Board controls the sensors and motor in the ADF.
• Feed Sensor
The Feed Sensor is located downstream from the Feed Roller to detect
completion of document feed.
• Document Present: Shielded (blocked)
• Document Absent: Unshielded (unblocked)
•ADF Motor
The ADF Motor rotates the Nudger Roller, Feed Roller, Takeaway Roller,
Registration Roller, and Exit Roller.
s6500-081
ADF Motor
ADF Board
Cover Open Sensor
Feed Sensor
Document Sensor