Paper Path System - Canon imagePROGRAF iPF8000S Service Manual

2.5.4 Paper path system

Feed roller HP sensor
Media sensor
The photoreflector-based media sensor detects the presence or absence of paper on the platen.
The sensor detects the presence of paper when it receives sensor light reflected upon the paper.
Feed roller HP sensor
The feed roller HP sensor detects transitions from white (transmitted), or a reference, to black (shielded) when the printer is switched on, thereby setting
the home position of feed roller eccentricity correction.
Feed roller encoder sensor
The feed roller encoder sensor is driven to detect the length of paper feeding for each rotation of the feed roller from encoder slits.
Feed roller
encoder
F-2-39
Media sensor
0014-8916