Brother International MFC-7050C Service Manual - Page 14

separation

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2.1 Scanner Mechanism This mechanism consists of the top cover, automatic document feeder (ADF), document feed roller ASSY, document ejection roller ASSY, and document sensors. (For details about the sensors, refer to Section 2.3.) If the operator sets documents on the top cover and starts the scanning operation, the scanner motor rotates so that the ADF (which consists of the separation roller ASSY and ADF parts) feeds those documents into the equipment, starting from the bottom sheet to the top, page by page. Each document advances with the document feed roller ASSY to the scanner, and then it is fed out of the equipment with the document ejection roller ASSY. Document Top cover ADF parts Document front sensor actuator Document rear sensor actuator Document feed roller ASSY Document pressure bar Document ejection roller ASSY Separation roller ASSY Pressure rollers CIS unit Pinch rollers Document tray (Front) III - 3

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2.1
Scanner
Mechanism
This
mechanism
consists
of
the
top
cover,
automatic
document
feeder
(ADF),
document
feed
roller
ASSY,
document
ejection
roller
ASSY,
and
document
sensors.
(For
details
about
the
sensors,
refer
to
Section
2.3.)
If
the
operator
sets
documents
on
the
top
cover
and
starts
the
scanning
operation,
the
scanner
motor
rotates
so
that
the
ADF
(which
consists
of
the
separation
roller
ASSY
and
ADF
parts)
feeds
those
documents
into
the
equipment,
starting
from
the
bottom
sheet
to
the
top,
page
by
page.
Each
document
advances
with
the
document
feed
roller
ASSY
to
the
scanner,
and
then
it
is
fed
out
of
the
equipment
with
the
document
ejection
roller
ASSY.
Document
ADF
parts
Top
cover
Separation
roller
ASSY
Pressure
rollers
CIS
unit
Pinch
rollers
III
-
3
Document
front
sensor
actuator
Document
rear
sensor
actuator
Document
feed
roller
ASSY
Document
pressure
bar
Document
ejection
roller
ASSY
Document
tray
(Front)