Patent ID: 7974551

Claim:
A developing device to be attached to an image forming apparatus having a photoreceptor, comprising: a first housing piece formed with a developer opening for supplying developer in an upper portion thereof and a bottom opening in a bottom portion thereof, the developer opening facing the photoreceptor; a developer carrier rotatably supported by the first housing piece, a portion of the developer carrier exposing through the developer opening; a developer agitating member rotatably supported by the first housing piece to agitate and electrically charge the developer, an axis of the developer agitating member being below an axis of the developer carrier and the developer opening; a second housing piece made of resin having high-thermal conductivity and detachably coupled to the first housing piece so as to seal the bottom opening of the first housing piece; the first housing piece and the second housing piece being coupled to each other through a snap fit joint.