1 ] Recording Mode (Solenoid: Off, Motor Rotation: Forward) - Brother FAX-170 Service Manual

[ 1 ] Recording mode (Solenoid: OFF, Motor rotation: Forward)
In the recording mode, the control electronics deactivates the solenoid. When the motor ro-
tates in the forward direction, the clutch arm turns clockwise with the spring and its cutout X
becomes engaged with the stopper of arm A. Once arm A is locked, the planet gear 20A
(C2) will not be engaged with any other gear but simply idle.
The motor rotation turns the sun gear 18/82 (B) counterclockwise so that the planet gear 20B
(C1) transmits the rotation via the gears D through G to the platen gear (H).
C1 (Planet gear 20B)
Solenoid
Clutch arm
Arm A Locked by Cutout X
A (Motor gear)
C1 (Planet gear 20B)
B (Sun gear 18/82)
Active Gears on the Drive Unit
D
E
Active Gears on the Scanner Frame ASSY
Cutout X of clutch arm
Stopper of arm A
C2 (Planet gear 20A)
B (Sun gear 18/82)
X of Clutch Arm X X
X
F
G
III – 9
(Front)
H (Platen gear)
(Front)