Patent ID: 7444103

Claim:
An image-forming device comprising: an image-carrying member having a surface on which electrostatic latent images are formable; a developer-carrying member configured to supply developer to the image-carrying member to develop the electrostatic latent image into a visible image, the developer-carrying member extending in an axial direction; a casing having an inner space configured to accommodate developer, the developer-carrying member being supported in the casing and disposed in a position where developer accommodated in the inner space of the casing is conveyable to the image-carrying member; a pressing member configured to press the casing in a direction causing the developer-carrying member to press against the image-carrying member; and a separating member configured to displace the casing in a direction that separates the developer-carrying member from the image-carrying member, wherein the casing comprises: a pair of first protruding parts each having an end that protrudes outward along the axial direction of the developer-carrying member; and a pair of second protruding parts each having an end that protrudes farther outward than the corresponding end of the first protruding part, such that the first protruding parts serve as operating parts operated by the pressing member, and the second protruding parts serve as operating parts operated by the separating member.