HP laserjet m712 Fehlerbehebungsanleitung

The paper feeder picks up one sheet of paper from the cassette.

  500-sheet paper feeder pickup and feed cassette pickup

M1

SL1

PF controller

PF cassette pickup motor

1. Cassette pickup cam rotates

2. Cassette pickup arm lowers

3. PF cassette pickup roller

    picks up the paper

3

1

2

PF cassette feed roller

Cassette pickup arm

PF cassette

pickup solenoid

PF cassette pickup roller

Lifting plate

Cassette pickup cam

PF cassette separation roller

The operational sequence of the cassette pickup is as follows:

The paper feeder controller rotates the PF cassette pickup motor when it receives a print command

from the formatter.

The PF cassette pickup roller, PF cassette feed roller and PF cassette separation roller rotate.

The PF cassette pickup solenoid is driven at a specified timing.

The cassette pickup cam rotates.

The cassette pickup arm lowers and the PF cassette pickup roller picks up the top paper.

The PF cassette separation roller removes any multiple-fed sheets.

One sheet of paper is fed into the product.

The paper feeder controller determines the size of paper loaded in the cassette and also whether the

cassette is installed to the paper feeder by monitoring the PF cassette media width switch and the PF

cassette media end switch.

The PF cassette media width switch and the PF cassette media end switch contain three sub-switches

each. The paper feeder controller detects the size of paper and the presence of cassette according to

the combination of the sub-switches and notifies the formatter.

ENWW

500-sheet paper feeder (Tray 4)

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