According to one embodiment, an image forming apparatus includes an accommodation unit and at least one driving roller. The accommodation unit accommodates a paper sheet therein. The at least one driving roller is disposed contactably with the paper sheet. A rotation direction of the at least one driving roller with respect to the paper sheet at a contact part between the paper sheet and the roller intersects a carrying direction of the paper sheet.

Provided are systems and methods for identifying, isolating, and/or aligning sheets. An identification system can facilitate accurate identification of a sheet by (i) vacating one or more components of the system that are not the sheet from a zone of detection, and/or (ii) determining a reference axis of the sheet. An isolation system can facilitate accurate isolation of a sheet by (i) providing targeted air flow, and/or (ii) introducing a wave into the sheet. Identification systems and/or isolation systems described herein may facilitate isolation of sheets that were previously fastened together by one or more fasteners. An alignment system can facilitate accurate alignment of a first sheet at an upstream location relative to a second sheet at a downstream location via machine learning.

A printer includes a guide frame, a deforming section, and a lever member. The guide frame includes a transport path. The deforming section includes a toothed roller, a supporting holder, and a torsion spring and deforms paper. The toothed roller comes into contact with the paper discharged from the transport path. The supporting holder is configured to pivot between a first position at which the toothed roller is located on the transport path and a second position at which the toothed roller is not located on the transport path. The torsion spring presses the supporting holder from the second position to the first position. The lever member is configured to switch between a regulating state in which pivoting of the supporting holder at the first position or the second position is regulated and a non-regulating state in which pivoting of the supporting holder is not regulated.

A printing apparatus includes: a printing unit configured to perform printing on a sheet; a driving unit configured to apply a rotational force to a roll member that is rotatably held; and a pressing unit having a roller configured to apply a pressing force to an outer peripheral surface of a roll sheet wound around the roll member, wherein the pressing unit changes the pressing force during a sequence in which the driving unit applies a rotational force to the roll member and a sheet that has passed through the printing unit is wound.

A method of self-adaption adjustment for post-printing treatment including steps of S1: printing a plurality of identifiers on a paper sheet for positioning actual locations of treatment on the paper sheet; S2: detecting the identifiers on the paper sheet, and locating the actual locations to be treated according to the locations of the identifiers and/or relative locations among the identifiers; and S3: adjusting locations of treatment from a post-printing treatment mechanism to the paper sheet according to the actual locations output in step S2. A system of self-adaption adjustment for post-printing treatment including a printing module, a detection module, a treatment module, a driving module and a post-printing treatment mechanism. The method and system realize the self-adaption adjustment, which effectively solves the problems that an actual value after skewing or stretching or shrinking the actual printing content is inconsistent with a theoretical value of typesetting, thus effectively improving the production efficiency and production quality, which has favorable economic and social benefits. The method and system can be widely applied in various post-printing treatment systems.

An image forming apparatus for forming an image on a recording material includes first and second sheet metal and a moving member. The first sheet metal includes a first facing surface and a first rear surface. The second sheet metal is fixed to the first sheet metal at a fixing portion and includes a second facing surface facing the first facing surface and a second rear surface. The first sheet metal is deformed in a first direction from the first rear surface toward the first facing surface in such a manner that the fixing portion is formed. The fixing portion includes a projection projecting from the second rear surface in the first direction. The moving member overlaps the fixing portion and is disposed at a position that is on an opposite side of the first rear surface from the projection and faces the first rear surface in the first direction.

According to one embodiment, an image forming apparatus includes an accommodation unit and at least one driving roller. The accommodation unit accommodates a paper sheet therein. The at least one driving roller is disposed contactably with the paper sheet. A rotation direction of the at least one driving roller with respect to the paper sheet at a contact part between the paper sheet and the roller intersects a carrying direction of the paper sheet.

A cloth clamping device includes a clamping mechanism that comes into contact with a cloth and an up-and-down movement mechanism that moves the clamping mechanism up and down. The clamping mechanism includes a support portion, a leg portion, a foot portion, and a clamping portion. The clamping portion has a leading end portion facing the foot portion in a sideway direction and a base end portion being pivotally supported by the support portion. When the leg portion is lowered with respect to the support portion, the leading end portion pivots downward and is positioned in a sideway direction with respect to the foot portion, and when the leg portion is raised with respect to the support portion, the clamping portion comes into contact with the upper surface of the cloth and the leading end portion is positioned above the foot portion, and the clamping mechanism draw up the cloth.

According to one embodiment, an image forming apparatus includes an accommodation unit and at least one driving roller. The accommodation unit accommodates a paper sheet therein. The at least one driving roller is disposed contactably with the paper sheet. A rotation direction of the at least one driving roller with respect to the paper sheet at a contact part between the paper sheet and the roller intersects a carrying direction of the paper sheet.

According to one embodiment, an image forming apparatus includes an accommodation unit and at least one driving roller. The accommodation unit accommodates a paper sheet therein. The at least one driving roller is disposed contactably with the paper sheet. A rotation direction of the at least one driving roller with respect to the paper sheet at a contact part between the paper sheet and the roller intersects a carrying direction of the paper sheet.