Rotary drive device and image forming apparatus

Details Rotary drive device and image forming apparatus Rotary drive device and image forming apparatus

2008-07-14

2011-11-29

Gray, David (Department: 2852)

Electrophotography

Image formation

Photoconductive member

C475S149000

Reexamination Certificate

active

08068766

ABSTRACT:
A rotary drive device includes a motor including a rotary shaft, a planetary gear mechanism, and a rotation position detector. The planetary gear mechanism decelerates a rotation output of the motor at a reference reduction ratio and includes an outer gear, multistage gears, and an output shaft. The outer gear is fixed to a housing of the motor. The multistage gears are provided inside the outer gear. The output shaft transmits the decelerated rotation output of the motor to an outside of the rotary drive device. The rotation position detector detects a rotation position of the output shaft to control rotation of the motor. The motor, the planetary gear mechanism, and the rotation position detector are combined into a single integrated unit and aligned in an axial direction of the rotary shaft of the motor.

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