Patent ID: 8787790

Claim:
A developing apparatus comprising: a photoconductor; a photoconductor frame part to support the photoconductor; a developing roller to develop a latent image formed on the photoconductor by supplying a developer; a developing roller frame part to support the developing roller, wherein the developing roller frame part is rotatably coupled to the photoconductor frame part via a hinge part; a developer storing part to store the developer and provided with a supplying opening through which the developer is supplied to the developing roller; a leakage preventer removably attached to and sealing the supplying opening; an insertion opening defined by a portion of the photoconductor frame part and a portion of the developing roller frame part; a spacer removably inserted in the insertion opening to maintain the photoconductor and the developing roller in a non-operational separated state; and a connection part to connect the spacer with the leakage preventer, wherein the insertion opening is configured to change in size according to rotation of the hinge part corresponding to insertion or removal of the spacer, and wherein the insertion opening is disposed in a first plane, and the supplying opening is disposed in a second plane.