A post-processing apparatus for post-processing paper discharged from an image forming apparatus comprises: a paper discharging roller for conveying both first and second paper sequentially discharged from an image forming apparatus to an intermediate loading part; a main paddle part for conveying the first and second paper loaded on the intermediate loading part to a compiling region; a reverse roller for conveying, together with the main paddle part, the first and second paper to the compiling region; and a binding part for processing the first and second paper conveyed to the compiling region, the paper discharging roller allows the first paper to stand by on a standby path, and conveys the first and second paper to the intermediate loading part in a state in which the leading end of the first paper protrudes further than the leading end of the second paper.

A stapler apparatus may be provided. More specifically, a stapler apparatus capable of automatically stapling a bundle of sheets output from an image forming apparatus such as a copy machine, a printer, a facsimile or the like may be provided. The stapler includes: a guide plate in which a slot having a branch structure has been formed; a moving frame which is reciprocatively movable on the guide plate; a rotation frame which is rotatable on the moving frame and includes a plurality of levers mounted thereon, the plurality of levers moving along the inside and outside of the slot or change paths; a path change member which changes a movement path of any one of the plurality of levers; and a stapler which is mounted on the rotation frame and is in conjunction with the rotation frame.

Even when a binding process for binding a plurality of sheets without using a staple is performed after performing printing on both faces of the sheets, the binding process can be performed so that the bound sheets are not easily separated. A control method for controlling a printing apparatus, comprises: performing a binding process for binding, without using a staple, a sheet on which an image is printed based on image data; specifying an area where the binding process is to be performed, the area being included in the image data; deleting image data of the specified area; and printing the image on the sheet based on the image data on which deleting is performed.

An image processing apparatus performs a binding process for binding a plurality of sheets. When a binding unit configured to bind sheets without using a staple performs the binding process, the image processing apparatus adds a mark for identifying a position where the binding process is performed.

An image forming apparatus includes a main assembly; an image forming portion for forming an image on a sheet; an openable member rotatably supported by the main assembly; a first feeding guide provided on the openable member; a second feeding guide provided in the main assembly, wherein when the openable member is closed, a sheet feeding path for feeding the sheet is formed by the first and second feeding guides; a hole provided in the first feeding guide; and an illumination device, provided on the openable member, for illuminating at least a part of the second feeding guide through the hole when the openable member is open.

A sheet binding processing apparatus including a processing tray, a sheet positioning device, a first binding device, a second binding device, a driving device which moves the second binding device to a binding position where the sheets positioned by the sheet positioning device are to be bound and to a retracting position for retracting to the outside of the sheets positioned by the sheet positioning device, and a controller which controls the driving device and causes the second binding device to be located at the retracting position when the first binding device binds sheets.

The present sheet processing apparatus is to obtain that folding in the center portion in the width direction of sheets is made, folding in the end portion is made more reliably by repeatedly pressing the end portion in the width direction, the folded sheets are harder to open, the appearance is also enhanced, and that collection characteristics are improved in stacking bunches of folded sheets, a sheet processing apparatus is provided with pairs of press members (press rollers 70) that press a folded loop BL of folding sheets BS, and a support unit 56 that shifts in the width direction of the folding sheets, while supporting a plurality of rows with a distance between the press members narrowed stepwise in the shift direction.

A binding process device includes an advancing member and a binding process unit. The advancing member advances toward a corner of a recording-medium bundle having multiple edges and having the corner at an intersection position where the edges intersect. The binding process unit performs a binding process on the recording-medium bundle by causing the advancing member to advance toward the corner and is capable of performing the binding process at a first position and at a second position located closer to the intersection position than the first position.

An image forming apparatus can create various output products using a transparent sheet as intended by a user.

A sheet processing apparatus includes a stacking section provided on the downstream side of a collecting section in a transport direction outside an apparatus housing, an alignment section provided on the downstream side of the collecting section in the transport direction, above the stacking section, to be able to shift in a predetermined movable region so as to align a sheet width direction orthogonal to the transport direction of the sheet to be stacked on the stacking section, a shaft-direction drive mechanism for shifting the alignment section in the width direction orthogonal to the transport direction, an alignment plate rotation shaft member for axially supporting the alignment section rotatably, a shaft-direction drive source for operating the shaft-direction drive mechanism, and a neat housing for storing the shaft-direction drive mechanism and the alignment plate rotation shaft member inside the housing.