Patent ID: 8657282

Claim:
An image forming device, comprising: a device main body having a cassette accommodation space; a sheet cassette accommodating a sheet-like medium, the sheet cassette being detachably attachable to the cassette accommodation space; an image formation unit that is provided in the device main body and is configured to form an image on the sheet-like medium carried from the sheet cassette; a re-carrying unit that is located under the sheet cassette attached to the cassette accommodation space in the device main body and is configured to re-carry the sheet-like medium to the image formation unit in a state where the sheet-like medium whose one face has been subjected to image formation has been reversed, the re-carrying unit being exposed to the cassette accommodation space when the sheet cassette is detached from the cassette accommodation space; and a driving source that is provided in the device main body and supplies a driving force to the re-carrying unit, wherein: the re-carrying unit comprises a driving roller and a pinch roller that carry the reversed sheet-like medium by rotating and contacting with each other via the sheet-like medium; a drive coupling mechanism having a transmission path transmitting the driving force of the driving source to the driving roller is provided between the driving source and the driving roller; and the drive coupling mechanism comprises an acting part that moves to bring the transmission path to a coupled state in accordance with an attaching motion of the sheet cassette to the cassette accommodation space without requiring movement of the re-carrying unit and moves to bring the transmission path to a cut off state in accordance with a detaching motion of the sheet cassette with respect to the cassette accommodation space.