Image forming device having retaining member retaining toner cartridges

摘要

A tandem-type process unit includes: a retaining member; a plurality of image bearing members; a plurality of developing units; a plurality of toner cartridges; and an operating member. The plurality of image bearing members are retained by the retaining member so as to be juxtaposedly arrayed with intervals between neighboring image bearing members. The plurality of developing units are retained by the retaining member, one for each of the image-bearing members. The plurality of toner cartridges are detachably attachable to the retaining member, one for each of the developing units. Each of the toner cartridges includes: a casing in which a through-hole is formed for supplying toner accommodated inside the casing to the corresponding developing unit; and a shutter that is configured so as to be capable of moving between an open position exposing the through-hole and a closed position closing the through-hole. The operating member is provided at the retaining member. The operating member is configured to be operated to move the shutter between the open position and the closed position by shifting between a first position corresponding to the closed position of the shutter in which the operating member extends above the retaining member, and a second position corresponding to the open position of the shutter in which the operating member has a lower profile than in the first position.