Rotary developing device for image-forming apparatus

摘要

A rotary developing device installed in a copier, printer and other image-forming apparatuses for developing a latent image which is electrostatically formed on an image carrier. A developing unit has at least one developing section therein and is rotatably supported at a predetermined position where it faces the image carrier. The developing unit is removably mounted on a unit carrier which is in turn slidably supported by a body of the image-forming apparatus. At least one of opposite end walls which define opposite ends of a developer chamber of the developing section is provided with cylindrical outer periphery and supported by support members at at least two points of the cylindrical outer periphery. At least one of the support members is held by a movable member which is mounted on the unit carrier. A means is provided for moving the support member away from the developing unit and, when the developing unit is loaded in the predetermined position, moving it into abutment against the end wall of the developing unit.