User Guide

Tray-presence detection
The tray presence sensor is in the lifter drive unit. The sensor detects the tray-presence sensor flag and
determines whether the tray is installed correctly.
Figure 1-32 Tray presence sensor
Tray
Tray
Tray lift operation
The DC controller rotates the lifter motor (M7) and moves the lifter rack until the tray media stack
surface sensor (SR9) detects it. The lifter lifts, and the lifting plate moves up to the position where the
media can be picked up. The lift operation is performed by monitoring the media stack surface sensor
when the printer is turned on, when the tray is installed, or as needed during a print operation.
If the paper-stack surface sensor does not detect the paper within a specified time after the lifter motor
begins rotating, the DC controller notifies the formatter that the lifter motor has failed.
ENWW
Pickup, feed, and delivery system
43