Canon fax basic 2000 サービスマニュアル

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RECORDING SECTION
4–54
• Paper feed motor drive switching mechanism
The recording paper is fed and cleaning performed by switching the power
of he paper feed motor.
(1) During recording paper feed
The power in the forward direction of the paper feed motor is transmit-
ted to the paper feed roller to feed the recording paper. At this time, the
carriage is at the home position, and the pendulum gear is fixed by the
control pin inside the purge unit.
(2) During pumping operation
The pendulum gear is released by the carriage moving to the home
position and pressing the control pin, and the purge drive gear is cou-
pled with the pendulum gear. Power in the reverse direction of the
paper feed motor is transmitted to the purge drive gear inside the purge
unit via the feed roller and pendulum gear to perform pumping.
Fig. 4-62   Paper Feed Motor Drive Switching Mechanism
Feed roller
Feed roller
Control pin
Purge unit
Control pin
Pendulum gear
Pendulum gear
Rubber cap
(1) During recording paper feed
(2) During pumping operation
Purge drive gear