In accordance with an embodiment, a sheet processing apparatus comprises a standby section configured to buffer a sheet; a processing section configured to receive sheets supplied from the standby section and execute a post processing on the sheets; a rotational shaft configured to rotate around an axis of rotation; a paddle arranged in the rotational shaft and configured to contact the sheet and move the sheets by rotating with the rotational shaft, the paddle being configured to slide the sheets on the processing section to a stopper for aligning the sheets; and a controller configured to control a rotational speed of the rotational shaft to rotate the paddle at a first speed, and control the rotational speed of the rotational shaft to rotate the paddle at a second speed slower than the first speed while the paddle contacts the sheets on the processing section for aligning.

A device and a method for separating sheet material is provided. The separation of sheet material is not effected statically, but a suitable pick-up position and/or a suitable pick-up mechanism is selected for each sheet material piece, for example in dependence on the quality of a surface of the sheet material piece to be picked up, in order to pick up the sheet material piece from the sheet material stack and remove it from the same.

A device and a method for separating sheet material is provided. The separation of sheet material is not effected statically, but a suitable pick-up position and/or a suitable pick-up mechanism is selected for each sheet material piece, for example in dependence on the quality of a surface of the sheet material piece to be picked up, in order to pick up the sheet material piece from the sheet material stack and remove it from the same.

In accordance with an embodiment, a sheet processing apparatus comprises an axis of rotation; a standby section configured to buffer a sheet; a processing section configured to execute a post processing on sheets moved from the standby section; a first paddle configured to be mounted in the axis of rotation and be rotated around the axis of rotation to contact with the sheet supplied from the standby section to draw the sheet into a stopper; and a second paddle configured to be mounted in the axis of rotation at a predetermined angle with respect to the first paddle and draw the sheet into the stopper after the first paddle is separated from the sheet after a drawing-in operation of the sheet by the first paddle.

In accordance with an embodiment, a sheet processing apparatus comprises an axis of rotation; a standby section configured to buffer a sheet; a processing section configured to execute a post processing on sheets moved from the standby section; a first paddle configured to be mounted in the axis of rotation and be rotated around the axis of rotation to contact with the sheet supplied from the standby section to draw the sheet into a stopper; and a second paddle configured to be mounted in the axis of rotation at a predetermined angle with respect to the first paddle and draw the sheet into the stopper after the first paddle is separated from the sheet after a drawing-in operation of the sheet by the first paddle.

In a sheet-processing apparatus, a controller controls a conveying guide to change over a sheet-conveying path of sheets that are ejected without stapling them to a sheet-processing conveying path based on predetermined sheet-conveying path selection information when judging that a non-stapling mode in which the sheet stapling processing is not performed on a first type of sheets follows a stapling mode in which the sheet-stapling processing is performed on a second type of sheets. The first type of sheets, which are not to be stapled, conveyed on the sheet-processing conveying path waits on a waiting portion in the non-processing mode while in the processing mode, a sheet-processing portion performs the sheet processing on the second type of sheets.

A post-processing apparatus comprises a first processing tray on which fed paper is placed; a paper binding section configured to bind a plurality of sheets of paper stacked on the first processing tray into one bundle; a second processing tray which a plurality of paper bundles bound on the first processing tray are sequentially conveyed to and placed on; a paper bundle gluing section configured to coat glue at a given position of the top surface of a first paper bundle placed on the second processing tray before a second paper bundle is placed on the first paper bundle; a pressing section configured to press and bind the first paper bundle with the second paper bundle between which glue is coated; and a control section configured to control the timing for conveying the second paper bundle onto the first paper bundle after the glue is coated.

The present invention is to provide a sheet bundle binding device having both a staple binding unit and a staple-free binding unit, capable of performing binding in two stages of proper binding and temporary binding so as to obtain a desired binding force and to easily remove some sheets from a bound sheet bundle. A binding control section determines, based on user's settings, whether or not to perform first binding in which a first sheet bundle Sb1 is subjected to the proper binding using the staple binding unit or staple-free binding unit and determines whether or not to perform second binding in which a second sheet bundle obtained by accumulating additional sheets on the first sheet bundle is subjected to the temporary binding using the staple-free binding unit so as to control binding forces with which the first and second sheet bundles are bound.

A printing control apparatus according to one aspect of this invention controls to print images on sheets based on image data of a plurality of pages, generate a bookbinding product by executing folding processing for the image-printed sheets, and output the bookbinding product. The printing control apparatus further accepts the position of an insertion sheet to be inserted into the sheets for which the folding processing is executed, and controls to output a plurality of bookbinding products by using, as a reference, the accepted position of the insertion sheet.

A printing control apparatus according to one aspect of this invention controls to print images on sheets based on image data of a plurality of pages, generate a bookbinding product by executing folding processing for the image-printed sheets, and output the bookbinding product. The printing control apparatus further accepts the position of an insertion sheet to be inserted into the sheets for which the folding processing is executed, and controls to output a plurality of bookbinding products by using, as a reference, the accepted position of the insertion sheet.