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|1. (WO2014208203) IMAGE FORMING DEVICE AND IMAGE FORMING METHOD|
|Applicants:||CITIZEN HOLDINGS CO., LTD.
CITIZEN SYSTEMS JAPAN CO., LTD.
|Title:||IMAGE FORMING DEVICE AND IMAGE FORMING METHOD|
Provided are an image forming device and an image forming method that reduce the likelihood that a boundary between transfer material regions will be erroneously detected, in a case where image formation is newly carried out by using an unused portion of a transfer material region which was partially used. The image forming device transfers transfer material to each transfer material region while conveying a band-shaped medium on which a plurality of transfer material regions of a first size that correspond to each of a plurality of transfer materials are repeatedly disposed in a prescribed order in a longitudinal direction, and the image forming device forms on a recoding medium an image of a first size or a second size that is no more than half the first size. If image formation of the second size is newly carried out using unused portions which are included in the transfer material regions that were already used for image formation of the second size, the transfer medium is conveyed in the forward direction until an unused portion of the next transfer material region adjacent to the used portion of one transfer material region reaches a detection position, the transfer medium is subsequently conveyed in the reverse direction, and from the unused portion side, the boundary between the used portion and the unused portion is detected.