Samsung Electronics Co., Ltd.

Young-Wok Seo

Hyun-cheol Lee

Dong-Lyoul Shin

Jeong-seon Kim

Valery KrasnosloBoditsev

A belt clutch apparatus for an image forming apparatus is is provided and includes a belt that rotates in contact with at least one unit, at least one movable roller for supporting the rotation of the belt, and a variable unit for changing position of the movable roller in order for the belt to have a first running path in contact with the unit and a second running path separated from the unit. Moreover, the belt can be selectively positioned in contact with a predetermined unit or separated therefrom while maintaining belt tension. Therefore, it becomes possible to protect the belt from unnecessary abrasion.

Belt clutch apparatus and image forming apparatus having the same

A developer scattering prevention unit used with an electrophotographic image forming device includes an air inlet/outlet pipe installed adjacent to an intermediate area between an image carrier and a developer and having a first air inlet/outlet port opened toward the intermediate area, and at least one vacuum source installed on at least one of the image carrier and the developer carrier to communicate with the air inlet/outlet pipe to control air to flow from the intermediate area through the first air inlet/outlet port. A developing device having this developer scattering prevention function becomes simplified in structure.

Growing community of inventors

Suwon-si, South Korea

Young-Wok Seo