Developing apparatus having pushing unit and image forming apparatus having the same

摘要

A developing apparatus includes a developing unit having a developing member, a photosensitive unit hinge-connected to the developing unit and having an image carrier, and a pushing unit disposed below the photosensitive unit and configured to selectively push a lower portion of the developing unit, wherein the pushing unit includes a pushing member disposed to move linearly in a base and having an end configured to be in contact with the lower portion of the developing unit, a link member having a first end connected to the pushing member, a crank arm rotatably connected to a second end of the link member, an elastic member disposed on the link member and that elastically supports the pushing member, and a rotation shaft rotatably disposed in the base and connected to the crank arm.

主权项

1. A developing apparatus, comprising:
a developing unit having a developing member; a photosensitive unit hinge-connected to the developing unit and having an image carrier; and a pushing unit disposed below the photosensitive unit and configured to selectively push a lower portion of the developing unit, wherein the pushing unit includes:
a pushing member disposed to move linearly in a base and having an end configured to be in contact with the lower portion of the developing unit;a link member having a first end connected to the pushing member;a crank arm rotatably connected to a second end of the link member;an elastic member disposed on the link member and that elastically supports the pushing member; anda rotation shaft rotatably disposed in the base and connected to the crank arm, andwherein the base comprises a pair of guide rails configured to guide a linear movement of the pushing member.