In the development device which is used for the gap guarantee component and the development

摘要

A space securing member that defines a predetermined space between the first rotary member and the second rotary member which is arranged apart from the first rotary member with the predetermined space, wherein the space securing member is provided with a circular hole which is rotatably supported by one of the first and second rotary members, and an arc-shaped portion which is in area contact with an outer peripheral surface of the other rotary member. IMAGE