Xerox Phaser 6121MFP Service Manual page 98

Theory of Operation
ADF Transport Operation
ADF Exit Operation
2-56
Document Feeder Transport Motor (M100)
Registration Roller 1
Registration Roller 2
1. The registration roller is rotated by the drive from the ADF Transport Motor
and move the original to the document scanning position.
2. The ADF Transport Motor drives the transport roller through a gear train.
3. Activation of the registration sensor establishes the document scan start
timing.
4. Deactivation of the registration sensor establishes the document scan end
timing and timing to de-energize the ADF Transport Motor.
The exit roller, driven by the ADF Transport Motor, turns to feed the original out of
the ADF. The original is fed onto the output tray.
Document Feeder Transport Motor (M100)
Exit Roller
Registration Sensor
Registration Roller
Phaser 6121MFP Service Manual
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