Disclosed is a method for binding a bundle of leaves, of which a strip of each of the leaves is folded separately beforehand along a first line to form a first fold line that extends parallel to and at a first distance from the edge, and subsequently is folded again along a second line to form a second fold line that extends parallel to and at a second distance from the edge whereby the first distance is different from the second distance.

Disclosed is a method for binding a bundle of leaves, of which a strip of each of the leaves is folded separately beforehand along a first line to form a first fold line that extends parallel to and at a first distance from the edge, and subsequently is folded again along a second line to form a second fold line that extends parallel to and at a second distance from the edge whereby the first distance is different from the second distance.

This system is provided with: a conveying device 1 that conveys paper P along a conveying path F; a sheet paper supply device 2, paper-folding device, or cutter connected to an upstream end of the conveying path; a gathering device 3 disposed midway through the conveying path; a saddle stitch device 7 connected to a downstream end of the conveying path; and a management unit 13 that collectively controls the conveying device, the sheet paper supply device, the paper-folding device, the cutter, the gathering device, and the saddle stitch device. The gathering device can switch operation between a non-operating mode, a first operating mode for operating as a primary gathering device, and a second operating mode for operating as a paper insertion device.

An image forming apparatus, which is connectable to a first device configured to conduct a punching process on a sheet with use of a replaceable punching member, the first device being connectable to a second device configured to conduct a binding process for generating a bookbinding product having a binding member inserted through a hole punched in the sheet, the image forming apparatus including: a display configured to display a print setting screen; and a controller configured to determine whether or not the replaceable punching member of the first device is compatible with the binding member of the second device, and control the display to inhibit bookbinding setting using the second device from being selected on the print setting screen in a case where the replaceable punching member is not compatible with the binding member.

An image forming apparatus, which is connectable to a first device configured to conduct a punching process on a sheet with use of a replaceable punching member, the first device being connectable to a second device configured to conduct a binding process for generating a bookbinding product having a binding member inserted through a hole punched in the sheet, the image forming apparatus including: a display configured to display a print setting screen; and a controller configured to determine whether or not the replaceable punching member of the first device is compatible with the binding member of the second device, and control the display to inhibit bookbinding setting using the second device from being selected on the print setting screen in a case where the replaceable punching member is not compatible with the binding member.

A recording medium post-processing device includes a binding unit and a hole forming unit. The binding unit performs a binding process on a recording medium bundle. The hole forming unit performs a hole forming process in a region of recording media that constitute the recording medium bundle including a part of a binding region in which the binding process is performed.

A recording medium post-processing device includes a binding unit and a hole forming unit. The binding unit performs a binding process on a recording medium bundle. The hole forming unit performs a hole forming process in a region of recording media that constitute the recording medium bundle including a part of a binding region in which the binding process is performed.

A job programming method includes using a processor to assemble a printable file based on more than two reference pages and print instructions; including printer readable instructions in the printable file to print more than one copy of a reference page; grouping a first set of reference pages into a first group based on a first plurality of print instructions to assemble a first part of the printable file; grouping a second set of reference pages into a second group based on a second plurality of print instructions to assemble a second part of the printable file; including printer readable instructions in the printable file to direct printed pages corresponding to the printer readable instructions to print more than one copy of the reference page to a common stack, and to direct printed pages corresponding to the first and second parts of the printable file to the common stack.

A job programming method includes using a processor to assemble a printable file based on more than two reference pages and print instructions; including printer readable instructions in the printable file to print more than one copy of a reference page; grouping a first set of reference pages into a first group based on a first plurality of print instructions to assemble a first part of the printable file; grouping a second set of reference pages into a second group based on a second plurality of print instructions to assemble a second part of the printable file; including printer readable instructions in the printable file to direct printed pages corresponding to the printer readable instructions to print more than one copy of the reference page to a common stack, and to direct printed pages corresponding to the first and second parts of the printable file to the common stack.

A post-processing device for processing a sheet includes a post-processing section for post-processing a sheet; a buffer section for temporarily staying a plurality of sheets at an upstream of the post-processing section; and a conveying section for conveying, one by one, the plurality of sheets stayed at the buffer section to the post-processing section.