User Guide

paper-presence detection
The media presence sensor detects whether paper is in the .
Figure 1-34 Paper-level-detection mechanism
Tray
Tray
Tray
Multifeed prevention
In the , a separation roller prevents multiple sheets of paper from entering the paper path. The pickup
roller drives the separation roller through a sheet of paper.
The low friction force between the sheets weakens the driving force from the pickup roller. Because
some braking force is applied to the separation roller, the weak rotational force of the pickup roller is
not enough to rotate the separation roller. Therefore, the separation roller holds back any multiple-fed
sheets, and one sheet of media is fed into the printer.
Figure 1-35 Multifeed prevention
Cassette pickup
roller
Media
Lifting plate
Cassette
separation
roller
Normal feed
Multiple feed
Separation roller does not rotate
ENWW
Pickup, feed, and delivery system
45