Document Feeding And Ejecting Mechanism; Scanner - Brother MFC7050C Service Manual

2.1.1

Document feeding and ejecting mechanism

To feed and eject documents, the scanner motor rotates counterclockwise. It rotates the sun gear
19/55 clockwise so that the planet gear 23 ASSY transmits the torque to the gear 19/47 and its
gear train.
After completion of paper ejection, the scanner motor rotates clockwise in order to disengage the
planet gear 23 ASSY from the gear 19/47. This allows you to pull back a document if jammed in
the backward direction.
2.1.2

Scanner

The scanner uses a contact image sensor (CIS) unit which consists of an LED array illuminating
documents, a self-focus lens array collecting the reflected light, a CIS PCB carrying out
photoelectric conversion to output picture element data, and a cover glass on which a document
advances. When the document passes between the document pressure bar and the cover glass,
it is scanned.
(Viewed from the right)
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