Abrégé

In order to reduce costs and perform a desired function by reliably preventing erroneous attachment to a shaft, the present invention is a rotation restricting member including a shaft insertion hole (1) that is set to have a shape corresponding to a shape of a rotation shaft (b1, b2) of a rotation shutter of a toner container (B1, B2) and into which the rotation shaft (b1, b2) is inserted with a predetermined posture relationship, and a plurality of lock holes (2a, 2b), each of which is formed at a different position around the shaft insertion hole (1) and performs a rotation locking function by engaging with a protruded portion (b3, b4) of the toner container (B1, B2). The shaft insertion hole (1) is formed around the rotation shaft (b1, b2) with a different angle corresponding to the shape of the rotation shaft (b1, b2), thereby allowing the engagement of any of the plurality of lock holes (2a, 2b) with the protruded portion (b3, b4).

Classes IPC  ?

• G03G 15/08 - Appareils pour procédés électrographiques utilisant un dessin de charge pour développer en utilisant un développateur solide, p.ex. développateur en poudre