Power Transmission Switching Mechanism - Brother FAX-545 Service Manual

3.2.3 Power Transmission Switching Mechanism

This machine has a single drive motor whose power transmission route can be switched by the
planetary gear system and by changing the motor rotation direction. This switching allows the
machine to function in five operation modes—scanning, paper feeding, recording, paper ejecting,
and copying modes.
To switch to a particular mode, the motor rotates in the reverse direction. If the switching cam of
the planet gear ASSY turns on the cam switch, the motor further rotates by the specified number of
pulses to locate the planet gear ASSY in the particular mode position. Then the motor rotates in the
forward direction to enter the particular mode.
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