A post-processing apparatus that performs, by one or more functional units which can be switched one another, predetermined post-processing corresponding to a function of the one or more functional units on a conveyed paper includes: a plurality of slots in which the one or more functional units can be loaded at respective loading positions along a conveyance path; a loading detector that detects that the one or more functional units are loaded in the slots; and a condition output part that outputs a condition that allows the post-processing depending on the loading positions of the slots in which the one or more functional units are loaded.

An image forming apparatus includes an image forming section, a print medium conveying section, and a controller. The print medium conveying section conveys a continuous print medium to the image forming section. The controller receives job data and causes the image forming section to perform, on the continuous print medium, an image forming operation based on the job data. The job data includes cuttable position data related to a cuttable position on the continuous print medium. When a pause signal is received, the controller causes, on a basis of the cuttable position data, the image forming operation to be continued up to an image forming end position on the continuous print medium, and thereafter pauses the image forming operation. The pause signal gives an instruction to pause the image forming operation. The image forming end position corresponds to the cuttable position.

A post-processing device includes: a cutter that performs cutting processing for dividing a printed sheet into a plurality of pieces; and a hardware processor that determines an overlapping region where a content of a recovery-printed sheet on which recovery printing has been performed due to an error which causes the cutting processing to be stopped during the cutting processing by the cutter is overlapped with a content of a printed matter obtained by the cutting processing before the error occurs, and makes the cutter cut the overlapping region of the recovery-printed sheet into pieces larger than the printed matter.

An image forming apparatus includes an image forming section, a post-processing unit, and a controller. The image forming section forms an image on a recording medium. The post-processing unit processes the recording medium obtained after the image forming section forms the image. The controller controls a post-processing execution time of the post-processing unit on the basis of information obtained by reading at least one control pattern from the recording medium. The at least one control pattern is formed to control the image forming section.

An image forming apparatus includes a medium carrying part carrying a continuous medium, an image forming part performing a print process, a cutting part cutting the medium, replacement parts that are expendable and expected to be replaced when reaching its end of life, a usage detection part detecting usages of all of the replacement parts, a controller controlling these parts. The controller determines if one of the replacement parts reaches its end of life during the print process based on the detection result of the usage detection part wherein the one of the replacement parts is defined as a life-end part, and when the life-end part is found, the controller determines whether or not to cut the medium according to a type of the life-end part and selection information input by an operator before the print process starts.

An image forming apparatus, including (1) a medium holding unit that holds a recording medium; (2) a guide member configured to be movable, that sets a medium path of the recording medium fed from the medium holding unit as a predetermined path by being locked in a predetermined position, and that is unlocked by a tension of the recording medium; (3) a first conveyance member that is arranged downstream of the medium path of the guide member, and conveys the recording medium; and (4) an image forming unit that forms an image to the recording medium conveyed by the first conveyance member.

An image forming apparatus includes: a first conveyance roller pair configured to convey a sheet by rotating while tightly sandwiching the sheet; a rotation blade pair disposed on a downstream side of the first conveyance roller pair in a conveyance path of the sheet and configured to cut the sheet in a direction parallel to the conveyance direction by rotating while sandwiching the sheet; and a second conveyance roller pair configured to convey a cut waste sheet cut by the rotation blade pair in the sheet conveyance direction by rotating while tightly sandwiching the cut waste sheet. A rotational speed of the second conveyance roller pair is controlled at a rotational speed higher than a rotational speed of the first conveyance roller pair.

An image forming system includes: a server accepting a print job from a client apparatus; and an image forming apparatus receiving an order for the print job from the server, the image forming apparatus including: a sheet feeding tray accommodating a sheet; a hardware processor determining to receive an order for a print job accepted by the server when a first and second conditions are satisfied; and an image former forming a page image based on the print job accepted by the server and a page image based on the print job being accepted specifying the sheet of the same size as that of the sheet specified, by allocating the page images in parallel to the sheet of twice the size of the sheet specified, when it is determined by the hardware processor that the order for the print job accepted by the server is received.

A medium cutting device cutting a continuous medium carried along a carrying path in a carrying direction includes a sandwiching part that is provided capable of sandwiching a medium; and a cutting blade that includes an edge extending in a width direction (X) of the medium, which is perpendicular to the carrying direction, wherein the medium is cut by the edge while the medium is sandwiched and held by the sandwiching part. Wherein the edge is in a shape depicting an involute curve in which path lengths (PL) of the medium, which are determined from the sandwiching part to the edge in the carrying direction, are substantially constant over the edge in the width direction.

A medium cutting device for cutting a continuous medium includes a sandwiching part to sandwich the medium wherein the medium is sandwiched at a sandwiching spot, a cutting blade provided with an edge at its tip for cutting the medium, and a contact part including a convex contact surface that is positioned on an opposite side from the sandwiching part with respect to the edge such that the contact surface is configured to contact the medium when the medium is pulled toward the contact part wherein a spot on the contact surface of which a tangent line passes through the sandwiching spot is defined as a first contact spot (X1). Wherein when an imaginary straight line that connects the sandwiching spot and the first contact spot is defined as a first tangent line (TL1), at least a portion of the edge is positioned on a side at which the contact part is present with respect to the first tangent line.