Developer-driving device and image forming apparatus having...

Details Developer-driving device and image forming apparatus having... Developer-driving device and image forming apparatus having...

2006-01-25

2008-11-11

Gray, David M (Department: 2852)

Electrophotography

Image formation

Photoconductive member

Reexamination Certificate

active

07450886

ABSTRACT:
A developer-driving device and an image forming apparatus having the same are provided. The developer-driving device includes a photosensitive drum-driving unit that rotates a photosensitive drum and a developing roller-driving unit that rotates a developing roller. Each of the photosensitive drum-driving unit and the developing roller-driving unit includes a one-way power transmission unit. The one-way power transmission unit idles when a developer is being mounted on a main body and transmits power to the photosensitive drum and the developing roller after the developer is mounted on the main body.

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