Transport Unit
Double-Feed Detection  | Ultrasound sensor method  | 
Roller Release  | Open roller nips to free paper for skew correction, paper registration  | 
Skew Correction  | Skew correction with registration gate roller  | 
Main Scan Registration  | Leading edge registration with the registration gate roller  | 
Sub Scan Registration  | Side-to-side registration with the dual shift rollers  | 
Paper Dust Collection  | Collection of dust from transfer timing roller with a mylar and into a tray  | 
CIS Cleaning  | Cleaning the CIS that reads the edges of sheets in the registration unit  |