| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the need of special reinforcement for a cover of an image forming device by providing a light-load constitution which does not make a force act on the cover at the time of closing the cover with respect to the constitution where a driving force is transmitted to a fixing device during closing of the cover but the driving force to the fixing device is cut off to allow a fixing device roll to freely rotate. SOLUTION: This constitution includes a freely opening/closing cover 8 covering the fixing device, a lever 29 which has one end freely engaged with and detached from the cover 8, a cam 30 connected to the other end of the lever 29, a swing arm 19 which is shaken in accordance with the can 30, and a driving gear 20 which is supported by the awing arm 19 and is so constituted that it can be engaged with and detached from a driving input gear 17 of the fixing device in accordance with shake of the swing arm 19.
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