An image forming system is described which is capable of assembling an output product which consists of sheets having uniform sheet widths by appropriately performing a trimming process even if the output product is made from a plurality of paper types. The image forming system consists of an image forming apparatus configured to form an image on a sheet; a finisher provided with a slit unit for trimming edges of sheets and capable of assembling an output product by joining the trimmed sheets, and a control unit for controlling the image forming apparatus and the finisher. When a book cover (standard paper type sheet) is supplied, the control unit trims the paper edges by a designated trimming width. Conversely, when a book body (non-standard paper type sheet) is supplied, the control unit trims the paper edges by a designated trimming width to which an offset amount is added.

An image forming system includes a sheet conveyance unit, an image forming unit, a fixing unit and a controller. The sheet conveyance unit conveys continuous paper. The image forming unit forms an image on the continuous paper. The fixing unit fixes the image formed on the continuous paper. The controller controls an image forming operation performed by the sheet conveyance unit, the image forming unit and the fixing unit. In a case where a waste paper reduction mode is selected, the controller controls the sheet conveyance unit to stop conveying the continuous paper so that a bottom end of a last image on the continuous paper be at a second stop position on an upper-stream side of a first stop position after the bottom end of the last image passes the fixing unit when ending the image forming operation.

An image forming apparatus includes an image forming device, a trim mark adder, an duplex alignment mark adder and a hardware processor. The image forming device is capable of forming an image on both sides of a sheet based on an image data. The trim mark adder adds trim mark information to the image data so that a trim mark is formed at a trimming position of the sheet. The duplex alignment mark adder adds duplex alignment mark information to the image data so that a duplex alignment mark is formed in a margin area between an edge of the sheet and the trimming position on both sides of the sheet. The hardware processor performs a duplex alignment of the image data based on a result of scanning the duplex alignment mark.

A system and a method for automatically processing a plurality of sheets. The method includes receiving printing instructions, receiving finishing instructions, after printing, in order to form a stack of printed and finished sheets, the finishing instructions includes an instruction to create a new target stack edge extending in a direction of a stack height on each of the plurality of sheets, printing a mark on each sheet of a group of sheets of the plurality of sheets, the mark intended to hit the new target stack edge in a group of at least one target hit point, and finishing the plurality of printed sheets according to the finishing instructions to create a new actual stack edge. A plurality of actual hit points form a pattern on the new actual stack edge and comprises a continuous proportional indication for a degree of correctness of the printing and/or finishing operation.

According to an example, a printing system may include a web layout module to access a set of images and generate a web layout of the set of images, in which the web layout is arranged in columns of same sized images, each column being arranged in sorted order of image size. The module may further add at least one of advertising material, a coupon, and customer information on a space of a column on which images do not extend a width of the web layout. The printing system may also include a print engine to print the set of images and the at least one of the advertising material, coupon, and customer information on a web of substrate in the generated print layout.

If a sheet is jammed while conveyed, whether the jammed sheet and a sheet preceding the jammed sheet have been generated by cutting an uncut sheet from which the jammed sheet is derived is determined. If generated, a printing apparatus re-prints a plurality of images including an image of the jammed sheet on a sheet, and the cutting apparatus cuts the re-printed sheet. If the jammed sheet and the preceding sheet have been generated, the printing apparatus re-prints a plurality of images including an image of the jammed sheet on a sheet, the cutting apparatus cuts the re-printed sheet, and a sheet that includes the same image as the preceding sheet is discharged to a different discharge destination from that of the preceding sheet.

Provided is a technique that can suitably form a cut line. According to one embodiment, an image forming device includes a line information generation unit and an image forming unit. The line information generation unit generates line information representing a cut line to cut out a main image formed on a recording medium. The image forming unit forms the main image with a non-decolorable material on the recording medium and forms the cut line represented by the line information with a decolorable material on the recording medium. The line information generation unit changes a level of curving of a curve included in the cut line, according to the recording medium.

An image forming apparatus includes: an apparatus main body; a cutter capable of cutting sheets; a first discharge roller configured to discharge a sheet, which is not cut by the cutter, to the outside of the apparatus main body; and a second discharge roller configured to discharge a sheet, which is cut by the cutter, to the outside of the apparatus main body. The second discharge roller is located downstream of the first discharge roller in a discharge direction of the sheet from the first discharge roller.

An image forming apparatus includes: an apparatus main body; an image forming unit configured to form an image on a sheet; a fixing unit including a heating rotation body and a pressure rotation body that forms a nip portion between the heating rotation body and the pressure rotation body, and configured to fix the image onto the sheet; and a cutter disposed downstream of the fixing unit in a conveying direction of the sheet and capable of cutting the sheet. The cutter is capable of cutting the sheet at a center position of the sheet in the conveying direction. A distance by which the sheet is conveyed from the nip portion to the cutter is larger than half of a dimension of the sheet to be cut in the conveying direction.

An image formation device includes: an image forming unit comprising a photosensitive drum, a developing roller configured to feed toner onto the photosensitive drum, a transfer unit configured to transfer, to a print medium, the toner fed onto the photosensitive drum, and a fixing unit configured to fix the toner transferred to the print medium onto the print medium; a processing unit provided downstream of the fixing unit in a conveyance direction of the print medium, the processing unit being configured to perform processing for cutting the print medium; and a controller configured to execute a double-sided printing of causing the image forming unit to perform printing on both sides of the print medium. The controller is configured to execute a processing process of causing the processing unit to perform the processing for cutting the print medium after executing the double-sided printing process.