Patent ID: 7680440

Claim:
A rotary developing device provided in an image forming device that is rotated by an input gear member to which motive force is input from a drive source, comprising: a plurality of containers being configured to house individually a color developer configured to develop at a plurality of respective developing positions; a support portion having a rotation shaft being configured to support said plurality of containers; a support member having a ring shaped gear being configured to be rotated by the input gear member, a number of gear teeth in said ring shaped gear being a number of gear teeth in the input gear multiplied by the number of said plurality of containers; and a rotation stop mechanism having a first latching member being fitted to said input gear member, a second latching member being configured to latch with said first latching member, and a second latching member drive mechanism being connected to said second latching member that drives said second latching member to latch and to unlatch said second latching member and said first latching member.