HP Enterprise 500 manual Cassette lift operation, 34Cassette lift mechanism

Cassette lift operation

The DC controller rotates the lifter motor (M7) and moves the lifter rack until the Tray 2 cassette lifter 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 cassette media-stack-surface sensor when the printer is turned on, when the cassette 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.

The DC controller lowers the lifting plate when no printing occurs to prevent media damage and pickup failure. If a print operation does not occur for a specified time, the DC controller reverses the lifter motor and moves the lifter rack until the cassette media-stack surface sensor stops detecting it.

Figure 1-34Cassette lift mechanism

ENWW Pickup, feed, and delivery system 45