| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive mechanism for moving a reciprocating member by a predetermined distance reliably with a simple configuration, and an image forming device having the drive mechanism. <P>SOLUTION: When a front cover 7 is opened, a drive transmission gear 52 that engages with a first rack part rotates forward, and an arm 36 moves forward. When the drive transmission gear 52 faces a first tooth-missing part 58, the arm 36 stops its movement. At this time, a first clutch 55 is disengaged from a second rack part 59. Meanwhile, when the front cover is closed, the first clutch 55 engages with the second rack part 59, and the arm 36 moves backward until the drive transmission gear 52 engages with the first rack part 57. <P>COPYRIGHT: (C)2010,JPO&INPIT |
