Sharp AR-651 (serv.man15) Service Manual ▷ View online
AR-651/810 DEVELOPER UNIT 12 - 13
[B] Toner recycle unit
(B-1) Toner recycle unit
(1) Remove the toner cartridge drive unit.
(2) Remove 2 screws and take off the toner
recycle unit.
Notes: 1. Be careful when treating this unit because
the toner is liable to be spilled out from the
connecting section among the toner
recycle unit, cleaner unit and developer
unit.
2. When installing the toner recycle unit, put
the window of the toner recycle unit
shutter section and protrusion of the
developer unit together.
3. Be careful not to give vibrations as less as
possible when removing/installing the
toner recycle unit, for they may cause
stains on images. Especially, the images
are more likely to be stained when the
remaining toner in the toner cartridge is
decreased.
(B-2) Recycle toner transport motor/Hopper motor
(1) Disconnect 2 connectors.
(2) Remove 2 screws and take off the transport
motor.
(3) Remove 2 screws and take off the hopper motor.
Protrusion
Transport motor
Hopper motor
Connector
AR-651/810 DEVELOPER UNIT 12 - 14
[E] Developer material
(1) Remove the developer unit.
(2) Remove 2 screws and take off the top cover.
(3) Tilt the developer unit and get out the
developer material with turning the rear side
gear.
Top cover
Gear
[D] Developer unit
(1) Remove the toner cartridge drive unit and
toner recycle unit.
(2) Turn the L-shaped shaft upward to release the
lock.
(3) Disconnect 1 connector and pull out the
developer unit to the front side.
L-shaped
shaft
Developer unit
(4) Put in a new material.
(5) Turn the rear side gear several times to
uniform the material.
Gear
AR-651/810 DEVELOPER UNIT 12 - 15
Note: When installing the top cover, insert the latches
completely and be careful not to catch up
the urethane seal. Also, pay attention to the lap
of the urethane sheets.
[F] Doctor blade
(1) Remove the developer material.
(2) Remove 2 screws and take off the doctor
blade.
Note: When installing the doctor blade, put the both
edges of it against the protrusions at the front
and rear side frames, and tighten up the
screws to fix it.
This procedure makes it unnecessary to adjust
the doctor-sleeve gap.
Doctor blade
[G] Auto-toner sensor
(1) Remove the developer material.
(2) Remove 2 screws and take off the auto-toner
sensor.
Auto-toner sensor
Protrusion
AR-651/810 DEVELOPER UNIT 12 - 16
[H] Guide roller
(1) Remove the developer unit.
(H-1) Front side
(2) Remove 2 screws and take off the bracket and
3 gears.
(3) Remove 1 E-ring and take off the spring.
(4) Remove 2 E-rings and take off 2 guide rollers.
(H-2) Rear side
(5) Remove 1 E-ring and take off the gear.
(6) Remove 1 E-ring and 1 spring and take off the
bushing.
(7) Remove 4 screws, take off the rear side frame
and disconnect the bias connector.
Bracket
E-ring
Guide roller
Spring
E-ring
Bias connector
E-ring
Spring
Gear
Bushing
(8) Remove the bias plate and spring.
(9) Remove 2 E-rings and take off 2 guide rollers.
Note: When installing the guide roller, pay attention
to its color (upside: white, downside: black).
Guide roller
Bias plate
Spring
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