Samsung Electronics Co., Ltd.

S-printing Solution Co., Ltd.

Hp Printing Korea Co., Ltd.

Pil-seung Oh

Sung-dae Kim

Tae-il Jung

Tae-hee Kim

Soo-yong Kim

A development cartridge attachable to and detachable from a main body of an image forming apparatus includes a photosensitive unit including a photosensitive drum, a developing unit including a developing roller and rotatably coupled to the photosensitive unit with respect to a hinge axis, a driving gear configured to rotate in a first direction for a printing operation or a second direction opposite the first direction, a driving member positioned coaxially with the driving gear and configured to be rotated by the driving gear, a first one-way clutch configured to connect the driving member with the driving gear only when the driving gear rotates in the second direction, and a first moving member configured to be connected to the driving member so as to reciprocate between a first location where a development nip is formed and a second location where the development nip is released.

Development cartridge and electrophotographic image forming apparatus using the same

A power transmitting apparatus includes a shaft, first and second passive members mounted on the shaft to be rotatable, and a driving member that is mounted on the shaft and rotates in connection with a driving source, and that according to a rotation direction, slides toward the first and second passive members along the shaft, so as to selectively establish a power connection with the first and second passive members.

Power transmitting apparatus and image forming apparatus implementing the same

Growing community of inventors

Suwon-si, South Korea

Pil-seung Oh