| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device configured to, in assembling by inserting a rack gear into a pre-incorporated two-step gear, uniquely fix phases of the two gears without using a special jig, and also, free from human errors, and to provide a developer supply device, a developing device and an image forming apparatus. <P>SOLUTION: One gear tooth located at the leading end side on inserting the rack gear is set larger than other gear teeth, and one part of a gear to be engaged with the rack gear, of the two-step gear is formed to an intermittent gear tooth to be engaged with the one end gear tooth of the rack gear, accordingly, on assemblage, the phases of the two-step gear and the rack gear are uniquely fixed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
