MEDIUM TRANSPORT DEVICE AND MEDIUM PROCESSING DEVICE USING THE SAME

To achieve both a parallelism adjustment of an image to be transferred to a medium and a skew adjustment of the medium in a device for transporting a medium, to which an image is transferred, with a transport belt.SOLUTION: A medium transport device comprises: a transport belt 2; a first stretching roll 3 that transports a medium S by nipping it between image holding means 10 and the transport belt 2, and transfers an image held by the image holding means 10 onto the medium S; a second stretching roll 4 that stretches a portion of the medium S, located downstream in the transport direction thereof from a portion stretched by the first stretching roll 3; contact adjusting means 5 that causes one end of the first stretching roll 3 in the axial direction thereof to swing while using the other end as a fulcrum, and adjusts a contact state of a contact region CN along the longitudinal direction thereof, between the image holding means 10 and the transport belt 2; and posture adjusting means 6 that maintains a distance constant between the center of the first stretching roll 3 and the center of the second stretching roll 4, causes one end of the second stretching roll 4 in the axial direction thereof to swing while using the other end as a fulcrum, and adjusts the posture of the second stretching roll 4 relative to the first stretching roll 3.SELECTED DRAWING: Figure 1 【課題】画像が転移される媒体を搬送ベルトで搬送する態様において、媒体上に転移する画像の平行度調整及び媒体の斜行調整を両立する。【解決手段】搬送ベルト２と、画像保持手段１０と搬送ベルト２との間に媒体Ｓを挟持して搬送し且つ画像保持手段１０に保持された画像を媒体Ｓに転移させる第１の張架ロール３と、第１の張架ロール３による張架部位から媒体Ｓの搬送方向下流側に位置する部位を張架する第２の張架ロール４と、第１の張架ロール３の軸方向一端を支点として他端を揺動させ、画像保持手段１０と搬送ベルト２との間の接触域ＣＮの長手方向に沿う接触状態を調整する接触調整手段５と、第１の張架ロール３と第２の張架ロール４との軸間距離を一定に保ち、第２の張架ロール４の軸方向一端を支点として他端を揺動させ、第１の張架ロール３に対する第２の張架ロール４の姿勢を調整する姿勢調整手段６と、を備える。【選択図】図１