SHEET PROCESSING DEVICE, LAMINATE PROCESSING DEVICE, IMAGE FORMING DEVICE AND IMAGE FORMING SYSTEM

To provide a sheet processing device configured so that at least one sheet-like medium (an inside paper) can be inserted into overlapped sheets (a laminated sheet) and accuracy of relative position of the sheet-like medium with respect to the overlapped sheets can be improved.SOLUTION: A sheet processing device according to the present invention is configured to tuck a sheet-like medium into overlapped sheets in which two sheets are overlapped and portions of the sheets are jointed to each other. The sheet processing device has a singular insertion mode in which a singular sheet-like medium is inserted into the overlapped sheets and a plural insertion mode in which a plurality of sheet-like media are inserted along a conveyance direction into the overlapped sheets. In each of the modes, the sheet-like media are inserted into while stopping the overlapped sheets. This enables a singular inside paper and a plurality of inside papers to be automatically inserted into the overlapped sheets, and can improve accuracy of relative position of the sheet-like media with respect to the overlapped sheets.SELECTED DRAWING: Figure 12 【課題】２枚重ねシート（ラミネートシート）に少なくとも１枚のシート状媒体（中紙）を挿入可能であり、かつ、２枚重ねシートに対するシート状媒体の相対位置精度を向上できるシート処理装置を提供する。【解決手段】２枚のシートが重ねられ、その一部が接合された２枚重ねシートにシート状媒体を挟み込むシート処理装置に関する。本発明のシート処理装置は、２枚重ねシートにシート状媒体を１枚挿入する単数挿入モードと、２枚重ねシートにシート状媒体を搬送方向に沿って複数枚挿入する複数挿入モードと、を有し、それぞれのモードにおいて、２枚重ねシートを停止させた状態で、シート状媒体を挿入する。これにより、２枚重ねシート内に１枚から複数枚の中紙を自動で挿入できるとともに、２枚重ねシートに対するシート状媒体の相対位置精度を向上できる。【選択図】図１２