IMAGE FORMATION DEVICE

PROBLEM TO BE SOLVED: To prevent lowering of an image quality due to variation of a transportation amount by a peeling load when a printing medium is transported while being detached from a roll body.SOLUTION: In an image formation device, detaching means 120 for detaching a printing medium 2 from a roll body 4 and peeling out the printing medium 2 is disposed near the roll body 4 and between the roll body 4 and a transportation roller 22 of a transportation part 103, and tension application means 130 for applying tension to the printing medium 2 is disposed between the detaching means 120 and the transportation roller 22. A driving force is transmitted to the detaching means 120 from a driving source 201 same as that of the transportation roller 22, and driving and stopping of a peeling roller 121 of the detaching means 120 are controlled according to a position of a tension roller 131. A peeling-out amount per a unit time by the detaching means 120 is more than a transportation amount per a unit time by the transportation roller 22. 【課題】ロール体から印刷媒体を剥離しながら搬送するときに引き剥がし負荷によって搬送量が変動して画像品質が低下する。【解決手段】ロール体４と搬送部１０３の搬送ローラ２２との間には、ロール体４の近傍に、ロール体４から印刷媒体２を引き剥がして繰出す剥離手段１２０が配置され、剥離手段１２０と搬送ローラ２２との間には印刷媒体２にテンションを付与するテンション付与手段１３０が配置され、剥離手段１２０は搬送ローラ２２と同じ駆動源２０１から駆動力が伝達され、テンションローラ１３１の位置に応じて剥離手段１２０の繰出しローラ１２１の駆動及び停止を制御し、記剥離手段１２０による単位時間当たりの繰り出し量は搬送ローラ２２による単位時間当たりの搬送量よりも多い。【選択図】図３