CHAPTER 3 THEORY OF OPERATION

2.2.3Paper eject

After the printing image on the photosensitive drum is transferred onto the paper, the paper is fed to the fixing unit to fix unfixed toner onto the paper.

Afterwards, the paper is ejected from the fixing unit by the first eject roller in the fixing unit. The eject sensor lever detects whether the paper is ejected correctly or not.

After the paper exits from the first eject roller, the paper is turned by the rear cover and ejected face down into the top output tray through the second eject roller. If the rear cover is open, the paper is ejected face up straight to the printer rear (straight paper path).

Second eject roller

Rear cover

First eject roller

Eject sensor lever

Fig. 3-31

2.3Sensors

2.3.1Cover sensors A and B

Detect opening and closing of the front cover.

Cover sensor (B)

Cover sensor (A)

Fig. 3-32

3-24

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Image 66
Brother HL-1030, 1240, 1250 service manual Sensors, Paper eject, Cover sensors a and B