Xerox Phaser 6000 Service Manual page 87

Theory of Operation
To place the toner image at an appropriate position on the sheet, the timing
of feeding from the Registration Assembly is adjusted by the duration for
which the Registration Clutch operates.
Registration Pinch Roller
Registration Roller
Registration Clutch
Registration Sensor
s6000-089
Phaser 6000/6010 and WC 6015 MFP Xerox Internal Use Only 2-31