公开(公告)号：US10162301B2

公开(公告)日：2018-12-25

申请号：US15508731

申请日：2015-04-23

Applicant: S-Printing Solution Co., Ltd.

Inventor： Mun Hyub Choi ,  Han Jun Lee

IPC: G03G21/16 ,  G03G15/04 ,  G03G15/06 ,  G03G21/12 ,  G03G15/08

Abstract: An image forming apparatus includes a developing device including a photosensitive unit having a photoreceptor and a developing unit having a developing roller; a light scanning unit including a light source to generate light to form an electrostatic latent image on the photoreceptor and a window through which the light is transmitted; a shutter unit to open and close the window; a plurality of pressing units to press the developing unit to cause the developing roller separated from the photoreceptor to contact the photoreceptor and cause the shutter unit to open and close the window; and an operating unit connected to the plurality of pressing units. The operating unit is movable between an operating position to generate a pressing force by the plurality of pressing units to press the developing unit and the shutter unit and a standby position to release the pressing force.