Brother International FAX 275 Service Manual - Page 22

Clutch, Cutout, clutch, Stopper, Planet, Released, Motor, Solenoid, Front, Active, Gears, Drive,

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I 3 / Copying mode (Solenoid: ON-►OFF, Motor rotation: Forward) The control electronics at first activates the solenoid to release the stopper of arm A from the cutout ® of the clutch arm while rotating the motor in the forward direction. Accordingly, the sun gear 18/82 (B) rotates counterclockwise so that both the planet gears 20B (01) and 20A (02) transmit the rotation; Cl rotation to the platen gear (H) and C2 rotation to the separation roller gear (L) and white pressure roller gear (0). Once the planet gear 20A (02) becomes engaged with gear K, the control electronics deactivates the solenoid. O Clutch arm Cutout 0 of clutch arm -- 0 -f) Stopper of arm A C2 (Planet gear 20A) cO C1 (Planet gear 20B) B (Sun gear 18/82) Arm A Released from Cutout ® of Clutch Arm A (Motor gear) 0 o Al -- --,. „ C2 (Planet gear 20A) 0 Solenoid 0 0 (Front) C1 (Planet gear 20B) B (Sun gear 18/82) © 0 I 0 Active Gears on the Drive Unit 0 O ©fr---- D L (Separation roller gear) 0 0 O 0 O (White pressure roller gear) 0 © 0 O G 0 0 N H (Platen gear) --------- (Front) Active Gears on the Scanner Frame ASSY

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I
3
/
Copying
mode
(Solenoid:
ON
-►OFF,
Motor
rotation:
Forward)
The
control
electronics
at
first
activates
the
solenoid
to
release
the
stopper
of
arm
A
from
the
cutout
®
of
the
clutch
arm
while
rotating
the
motor
in
the
forward
direction.
Accordingly,
the
sun
gear
18/82
(B)
rotates
counterclockwise
so
that
both
the
planet
gears
20B
(01)
and
20A
(02)
transmit
the
rotation;
Cl
rotation
to
the
platen
gear
(H)
and
C2
rotation
to
the
separation
roller
gear
(L)
and
white
pressure
roller
gear
(0).
Once
the
planet
gear
20A
(02)
becomes
engaged
with
gear
K,
the
control
electronics
deacti-
vates
the
solenoid.
O
Clutch
arm
0
Cutout
0
of
clutch
arm
-
f)
c
O
Stopper
of
arm
A
C2
(Planet
gear
20A)
C1
(Planet
gear
20B)
B
(Sun
gear
18/82)
Arm
A
Released
from
Cutout
®
of
Clutch
Arm
A
(Motor
gear)
Solenoid
o
0
Al --
--,.
„
0
©
C2
(Planet
gear
20A)
0
0
0
(Front)
C1
(Planet
gear
20B)
I
B
(Sun
gear
18/82)
Active
Gears
on
the
Drive
Unit
L
(Separation
roller
gear)
0
O
fr
----
©
0
©
0
D
O
0
O
G
0
0
0
0
0
---------
O
(White
pressure
roller
gear)
N
H
(Platen
gear)
(Front)
Active
Gears
on
the
Scanner
Frame
ASSY