Sharp AR-651 (serv.man19) Service Manual ▷ View online
AR-651/810 RADF (DOCUMENT FEEDER) 16 - 77
(E-2) Tray lift motor
(1) Remove the ADF rear cover.
(2) Remove the ADF board with the bracket.
(3) Remove 2 screws and take off the tray lift
motor with the bracket.
(4) Pull out 2 pulleys from the shaft and release
the tray lift motor from the bracket.
(E-3) Read motor
(1) Remove the ADF rear cover.
(2) Remove the tension spring.
(3) Disconnect 1 connector.
(4) Remove 2 screws and take off the read motor
with the bracket.
(5) Remove 2 screws and release the read motor
from the bracket.
<Installing procedure>
(6) Install the read motor to the bracket. While
hanging the timing belt around both pulleys
at the RADF unit and read motor, move the
bracket downward and tack it there
temporarily with 2 screws.
(7) Hook the tension spring on the brackets.
(8) Loosen the screws temporarily, and tighten
them up while stretching the timing belt.
Note: Make sure that the timing belt is not moved to
the edges.
Tray lift motor
Read motor
Tension spring
AR-651/810 RADF (DOCUMENT FEEDER) 16 - 78
(E-4) Small original exit motor
(1) Remove the ADF rear cover.
(2) Remove the ADF board with the bracket.
(3) Remove the tension spring.
(4) Disconnect 1 connector, remove 2 screws and
take off the small original exit motor with the
tension bracket.
(5) Remove 2 screws and release the small
original exit motor from the tension bracket.
<Installing procedure>
(6) Install the small original exit motor to the
tension bracket. While hanging the timing belt
around the pulley of the small original exit motor,
move the tension bracket fully to the right side
and tack it there temporarily with 2 screws.
(7) Hook the tension spring on the tension brackets.
(8) Loosen the screws temporarily, and tighten
them up while stretching the timing belt.
Note: Make sure that the timing belt is not moved to
the edges.
(E-5) Large original exit motor
(1) Remove the ADF rear cover.
(2) Remove the ADF board with the bracket.
(3) Loosen 2 screws, move the large original exit
motor fully downward and tack it there
temporarily.
(4) Remove 2 screws and take off the large
original exit motor.
<Installing procedure>
(5) While hunging the timing belt around the
pulley of the large original exit motor, tack the
large original exit motor to the tension bracket
temporarily with 2 screws.
(6) Loosen the screws temporarily, and tighten
them up while stretching the timing belt.
Note: Make sure that the timing belt is not moved to
the edges.
Small original exit motor
Connector
Tension spring
(4)
(6)
(4)
Large original exit motor
(4)
(4)
(3)
(3)
AR-651/810 RADF (DOCUMENT FEEDER) 16 - 79
(F-2) Large original exit solenoid
(1) Remove the ADF front cover while keeping
the jam access cover open.
(2) Disconnect 1 connector.
(3) Remove 1 screw and take off the large
original exit solenoid with the bracket.
(4) Remove 1 screw and release the large
original exit solenoid from the bracket.
(F-3) Disengagement solenoid
(1) Remove the ADF front cover.
(2) Remove the clip and take off the disengage-
ment solenoid link.
(3) Remove 1 screw fixing the harness duct,
release 2 latches and move the harness duct
to the right side.
(4) Remove 1 screw fixing the disengagement
solenoid bracket, disconnect 1 connector and
take off the disengagement solenoid with the
bracket.
(5) Remove 2 screws and release the disengage-
ment solenoid from the bracket.
[F] Solenoids
(F-1) Small original exit solenoid
(1) Remove the ADF rear cover.
(2) Remove the ADF board with the bracket.
(3) Remove the large original exit motor.
(4) Remove 1 screw and take off the small
original exit solenoid with the bracket.
(5) Remove 2 screws and release the small
original exit solenoid from the bracket.
Small original exit solenoid
Connector
Disengagement solenoid
(F-3)(4)
(F-3)(3)
(F-2)(3)
Large original
exit solenoid
exit solenoid
Estrangement
solenoid link
solenoid link
Harness
duct
duct
AR-651/810 RADF (DOCUMENT FEEDER) 16 - 80
(5) Disconnect 1 connector and take off the lifting
tray lower limit sensor.
(3) Open the reverse guide, detach the front side
inlet and take off the guide toward the front
side.
(4) Remove 4 screws and take off the lower
guide.
(G-2) Lifting tray lower limit sensor
(1) Remove the upper guide unit.
(2) Remove 2 screws and take off the upper
guide stay.
Lifting tray lower limit sensor
Inlet
Reverse guide
Lower guide
Upper guide stay
[G] Sensors/Switches
(G-1) Lifting tray upper limit sensor/Empty sensor/
Cover open/close sensor
(1) Open the jam access cover, remove 2 screws
and take off the upper guide cover.
(2) Disconnect the connectors and release the
latches and take off the lifting tray upper limit
sensor, empty sensor and cover open/close
sensor.
Cover open/close sensor
Empty sensor
Lifting tray upper
limit sensor
limit sensor
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