Patent ID: 7274895

Claim:
An image forming device, comprising: an electrostatic latent image carrier which carries a latent image; a main frame which supports the electrostatic latent image carrier; a developing unit which includes a developer carrier that supplies a developer to the electrostatic latent image carrier and a replenish chamber that replenishes the developer in the developer carrier, and which is inserted removably in the main frame; means for operating to press or not press the developing unit by sliding a pressing body provided on the main frame; a manual operation unit which is provided on the means for operating and set at an operational position and a standby position; and a protrusion which is formed along an operational direction of the manual operation unit on a side surface of the developing unit located at the manual operation unit when the developing unit is inserted, wherein when the manual operation unit is set at the operational position, the developing unit makes contact with the protrusion and is inserted.