A book binding apparatus includes: a first processing section which is configured to perform a first process on a medium; a second processing section which is configured to perform a second process on the medium on which the first processing section has performed the first process; a first discharging section to which the medium on which the first processing section has performed the first process is discharged; and a second discharging section to which the medium on which the first processing section has performed the first process, and on which the second processing section has performed the second process is discharged.

An image forming apparatus includes: a first apparatus configured to perform punching on a sheet by using a punching member; a second apparatus, including a stacking part on which a plurality of sheets punched by the first apparatus is stacked, and configured to perform binding so as to obtain a bookbinding article in which a binding member penetrates in a ring shape through punched holes of the plurality of sheets; a notification unit notifying information; and a control unit configured, in a case of starting a job using the first apparatus and the second apparatus and determining that a jam has occurred in the stacking part, to cancel the job, and to cause the notification unit to notify that a thickness of a sheet stack stacked on the stacking part exceeds a thickness that enables to be bound by the binding member used by the second apparatus.

An image forming apparatus includes: a first apparatus configured to perform punching on a sheet by using a punching member; a second apparatus, including a stacking part on which a plurality of sheets punched by the first apparatus is stacked, and configured to perform binding so as to obtain a bookbinding article in which a binding member penetrates in a ring shape through punched holes of the plurality of sheets; a notification unit notifying information; and a control unit configured, in a case of starting a job using the first apparatus and the second apparatus and determining that a jam has occurred in the stacking part, to cancel the job, and to cause the notification unit to notify that a thickness of a sheet stack stacked on the stacking part exceeds a thickness that enables to be bound by the binding member used by the second apparatus.

A sheet processing device includes a tape binding processing unit, a paper discharge unit, and a control unit. The tape binding processing unit performs tape binding processing on a sheet bundle. The paper discharge unit discharges the sheet bundle subjected to the tape binding processing onto a paper discharge tray. The control unit is configured to control at least one of the tape binding processing unit and the paper discharge unit, such that a first tape binding of the first bundle of sheets and a second tape binding of the second bundle of sheets are not in contact with each other when the first bundle of sheets and the second bundle of sheets are stacked on the paper discharge tray.

A sheet processing device includes a tape binding processing unit, a paper discharge unit, and a control unit. The tape binding processing unit performs tape binding processing on a sheet bundle. The paper discharge unit discharges the sheet bundle subjected to the tape binding processing onto a paper discharge tray. The control unit is configured to control at least one of the tape binding processing unit and the paper discharge unit, such that a first tape binding of the first bundle of sheets and a second tape binding of the second bundle of sheets are not in contact with each other when the first bundle of sheets and the second bundle of sheets are stacked on the paper discharge tray.

A sheet processing device performs saddle stitching binding a bundle of stacked paper sheets, and includes a stacker section temporarily stacking conveyed paper sheets substantially vertically; a stopper regulating the paper sheets stacked in the stacker section; a first binding section provided in the stacker and saddle-stitching, with a metallic staple, a paper sheet bundle regulated by the stopper at a binding position around a center of the paper sheet bundle in a sheet conveying direction; a second binding section saddle-stitching, without using the metallic staple, the paper sheet bundle being regulated by the stopper at the binding position around the center of the paper sheet bundle in the sheet conveying direction; and a folding section folding in half the paper sheet bundle regulated by the stopper at a folding position at which the paper sheet bundle is bound by the first binding section or second binding section.

A sheet processing device performs saddle stitching binding a bundle of stacked paper sheets, and includes a stacker section temporarily stacking conveyed paper sheets substantially vertically; a stopper regulating the paper sheets stacked in the stacker section; a first binding section provided in the stacker and saddle-stitching, with a metallic staple, a paper sheet bundle regulated by the stopper at a binding position around a center of the paper sheet bundle in a sheet conveying direction; a second binding section saddle-stitching, without using the metallic staple, the paper sheet bundle being regulated by the stopper at the binding position around the center of the paper sheet bundle in the sheet conveying direction; and a folding section folding in half the paper sheet bundle regulated by the stopper at a folding position at which the paper sheet bundle is bound by the first binding section or second binding section.

The present invention provides a post process control apparatus including a post processing unit configured to perform post processing on a printed sheet printed in accordance with a job, and a method for controlling the same, where the post process control apparatus and the method of controlling the same obtain a number of sheets in one copy of printed sheets instructed by the job, control the post processing unit to, if the obtained number of sheets in one copy is singular, execute the post processing in one batch on printed sheets corresponding to a plurality of copies, and to control the post processing unit to, if the obtained number of sheets in one copy is plural, execute the post processing individually by printed sheets corresponding to one copy.

The present invention provides a post process control apparatus including a post processing unit configured to perform post processing on a printed sheet printed in accordance with a job, and a method for controlling the same, where the post process control apparatus and the method of controlling the same obtain a number of sheets in one copy of printed sheets instructed by the job, control the post processing unit to, if the obtained number of sheets in one copy is singular, execute the post processing in one batch on printed sheets corresponding to a plurality of copies, and to control the post processing unit to, if the obtained number of sheets in one copy is plural, execute the post processing individually by printed sheets corresponding to one copy.

The book binding device includes a section for forming a cut in the end side of a conveyed sheet, a control section for controlling the section for forming a cut, and a selection section for selecting each sheet for the presence/absence of a cut to be formed by the section for forming a cut, wherein the control section controls the formation of a cut by the section for forming a cut based on the presence/absence of the formation of a cut selected by the selection section, and then the mixture of sheets in which cuts are formed and sheets in which cuts are not formed are bundled and bound to complete a booklet.