Phaser 6128MFP Service Manual 2-53
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)
s6128-053
ADF Motor
Automatic Document Feeder Board
Cover Open Sensor
Feed Sensor
Document Sensor
To Next Page
Loading...
