A notebook may generally comprise a plurality of sheets of paper, a binding mechanism binding the plurality of sheets together, and a cover bound to the plurality of sheets of paper disposed therebetween, the cover comprising first and second opposed covers, the first cover including a first portion and a second portion and having a hinge line extending therebetween, wherein the second portion is pivotable about the hinge line between a closed position and an open position. A notebook cover is also described.

A notebook may generally comprise a plurality of sheets of paper, a binding mechanism binding the plurality of sheets together, and a cover bound to the plurality of sheets of paper disposed therebetween, the cover comprising first and second opposed covers, the first cover including a first portion and a second portion and having a hinge line extending therebetween, wherein the second portion is pivotable about the hinge line between a closed position and an open position. A notebook cover is also described.

A sheet system including a sheet having an edge and at least one generally triangular hole positioned adjacent to but spaced apart from the edge. A side of the triangle is oriented generally parallel with the edge of the sheet.

An image forming apparatus, including: a printing unit configured to print on a sheet; a bookbinding unit configured to perform a cutting process of cutting a binding member for binding a plurality of sheets before sheets printed by the printing unit are stacked on a stack tray and perform a binding process of binding the sheets by the cut binding member; and a controller configured to cause the bookbinding unit to perform the cutting process of the binding member based on sheet size information, the controller controls, in a case of producing a plurality of copies of bookbound products, not to perform the cutting process of the binding member of a second copy while sheets are stacking as a first copy, but to perform the cutting process of the binding member of a next copy while sheets are stacking as each of the second copy and subsequent copies.

An image forming apparatus including: a printer; a puncher configured to punch the sheet printed by the printer; a binder configured to perform a bookbinding process to form a bound product in which a binding member penetrates punch holes of sheets; a first detector configured to detect a first jam of a sheet in the binder; a second detector configured to detect a second jam of a sheet which occurs upstream of the binder; an annunciator configured to notify information; and a controller configured to cause the annunciator to notify first instruction information for instructing removal of a sheet and the binding member, when the first detector has detected the first jam; and cause the annunciator to notify second instruction information for instructing removal of the second jam when the second detector has detected the second jam and the first detector has not detected the first jam.

A binding component holding sheet is configured to detachably hold a binding component obtained by spirally winding a wire rod and includes a holder configured to hold the binding component by insertion of a circumferential portion of the spirally wound binding component. The holder is configured to hold the binding component so that an area greater than a half of the binding component in a circumferential direction protrudes to one side of the binding component holding sheet and an area less than the half of the binding component in the circumferential direction protrudes to the other side of the binding component holding sheet.

A binding component holding sheet is configured to detachably hold a binding component obtained by spirally winding a wire rod and includes a holder configured to hold the binding component by insertion of a circumferential portion of the spirally wound binding component. The holder is configured to hold the binding component so that an area greater than a half of the binding component in a circumferential direction protrudes to one side of the binding component holding sheet and an area less than the half of the binding component in the circumferential direction protrudes to the other side of the binding component holding sheet.

A bookbinding apparatus includes a sheet aligning unit which stacks and aligns plural sheets having holes formed therein, a binding mechanism which binds the sheets aligned in the sheet aligning unit by conveying a binding component in an axial direction while rotating the binding component in a circumferential direction, a binding component storing unit which stores therein plural binding components; a binding component conveyance path which conveys the binding component from the binding component storing unit to the binding mechanism. The binding component conveyance path forms a curved conveyance path for conveying the binding component with being curved with respect to the axial direction to an end portion of a side of the aligned sheets at which the binding mechanism starts inserting the binding component, at a position that is distant from the end portion by a distance smaller than a length of one binding component.

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.