Theory of Operation 2-31
■ Registration Sensor 
Detects the when the media’s leading edge has reached the Registration Chute. 
■ Rubber Registration Roller 
Driven by the Main Drive Assembly through the Registration Clutch, the Rubber 
Registration Roller works with the Metal Registration Roller to correct media 
skew and transport media.
■ Metal Registration Roller 
Works in conjunction with the Rubber Registration Roller. When the leading 
edge of the paper arrives at the registration rollers, the rollers are not turning and 
the paper buckles against the rollers to correct any skew at the leading edge.
■ Turn Roller 
The Turn Roller is rotated by the Main Drive Assembly, through the Turn Clutch 
to feed paper from Tray 1 (MPT) to the Registration Chute.
■ Turn Clutch  
Transfers drive from the Main Drive Assembly to the Turn Roller through a 
friction clutch.
■ Registration Clutch 
Transfers drive from the Main Drive Assembly to the Rubber Registration Roller, 
and transports the paper from Tray 1 (MPT) and the duplex path toward the