Paper Pick-Up/Feed System; Outline - Brother HL-2060 Service Manual

4.

PAPER PICK-UP/FEED SYSTEM

4.1

Outline

If a tray1 paper pick-up roller solenoid drive signal (PUCL1) is input to the circuit while the
paper feed motor is rotating, the paper pick-up solenoid comes on and the paper pick-up
roller solenoid is engaged. As a result, the paper pick-up roller rotates to feed paper
down to the photosensitive drum.
The paper position is controlled by the registration sensor so that the leading edge of the
paper is aligned with the leading edge of the image on the photosensitive drum. After this
operation, the paper is deliveried to the face down tray via the fixing unit. Paper ejection
is detected by the paper ejection sensor; if printed paper has not reached or not cleared
the paper ejection sensor in a specified time, the printer judges that a paper jam has
occurred. In this case a paper jam is noticed to the external devise by a status signal.
MP tray paper empty sensor signal (PEMP)
Tray1 pick-up roller solenoid drive signal (PUCL1)
Tray1 paper empty sensor signal (PETRAY1)
Registration sensor signal (REGIST)
Paper ejection sensor signal (EJECT)
Figure 2.18
II-12
MP tray pick-up roller
solenoid drive signal (MPSOL)
Paper feed motor drive signal
Main motor drive
signal (MDRIVE)