CONVEYANCE DEVICE, IMAGE FORMING APPARATUS, AND MEDIUM CONVEYANCE METHOD

PROBLEM TO BE SOLVED: To provide a conveyance device, an image forming apparatus, and a medium conveyance method capable of preventing the separation of a back end part of a sheet medium due to lifting of a middle section of the medium when the medium is being conveyed along an arc-shaped path.SOLUT...

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Bibliographische Detailangaben
Hauptverfasser: NITTA TATSUYA, KAMIMURA HIROSHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a conveyance device, an image forming apparatus, and a medium conveyance method capable of preventing the separation of a back end part of a sheet medium due to lifting of a middle section of the medium when the medium is being conveyed along an arc-shaped path.SOLUTION: A conveyance device comprises: an image forming drum (52) for fixing the back surface (P) of a sheet (P) and conveying the sheet along an arc-shaped path at a transfer position (312); a chain gripper, which is disposed downstream of the image forming drum in the conveyance direction and is equipped with a gripper (64D) for gripping the leading end of the sheet, which conveys the sheet along the arc-shaped path at the transfer position, and a portion of the path of which is disposed at a position that projects past the transfer position toward the image forming drum; and a blower unit (300), which is disposed on the chain gripper side of the transfer position and blows air from the chain gripper side to the image forming drum side on the downstream side of the transfer position in the conveyance direction to send the air toward the sheet conveyed by the chain gripper. 【課題】枚葉の媒体を円弧状の軌道に沿って搬送させる際に媒体の中間部の浮きによる媒体の後端部の剥離が防止される搬送装置、画像形成装置、及び媒体搬送方法を提供する。【解決手段】用紙(P)の裏面(PB)を固定し、受け渡し位置(312)において用紙を円弧状の軌道に沿って搬送する画像形成ドラム(52)と、画像形成ドラムの搬送方向下流側に配置され、用紙の先端部を把持するグリッパ(64D)を具備し、受け渡し位置において用紙を円弧状の軌道に沿って搬送し、軌道の一部が受け渡し位置よりも画像形成ドラムの方へ入り込んだ位置に配置されるチェーングリッパと、受け渡し位置よりもチェーングリッパ側に配置され、受け渡し位置よりも搬送方向の下流側に、前記チェーングリッパ側から画像形成ドラム側へ風を吹き付けて、チェーングリッパによって搬送される用紙へ向けて送風するブロアユニット(300)と、を備えている。【選択図】図1