Abstract: A sheet discharge device includes a sheet discharge portion, a sheet loading portion, and a stopper mechanism. The stopper mechanism includes a first stopper supported pivotably to a first retraction position and a first restriction position, a second stopper that is movable to a first position at which the second stopper is housed along a downstream end part of the sheet loading portion and a second position apart from the first position to a downstream side in a sheet discharge direction and is supported pivotably to a second retraction position and a second restriction position, and a link mechanism connecting the first stopper to the second stopper. When the second stopper is disposed at the first position, the first stopper is disposed at the first restriction position, and when the second stopper is disposed at the second position, the first stopper is disposed at the first retraction position.

Abstract: A post-processing device includes a processing tray on which a medium recorded by a recording portion is loaded, and a first paddle which is an example of a transportation member provided above the processing tray and rotating to transport the medium toward the upstream in a transport direction. In addition, the post-processing device includes a roller which is an example of a rotating body provided above the rotation shaft of the first paddle, and a paddle unit frame which is an example of an upper member provided above the roller. The roller and the paddle unit frame are positioned within a rotation locus of the first paddle.

Abstract: A rotation device rotates a sheet on an upstream side of, in a sheet conveyance orientation, a working device positioned in a middle of a conveyance path, thereby changing an orientation of the sheet. An information acquiring portion acquires sheet size information and sheet orientation information representing a size and the orientation of the sheet in a sheet storing portion, and working position information representing a working position on the sheet. A rotation control portion controls the rotation device in accordance with the sheet orientation information and the working position information. The working control portion controls the working device in accordance with the orientation of the sheet after passing through the rotation device, and the sheet size information and the working position information.

Abstract: An image forming system includes a detection unit to detect a recording material, having an image formed thereon by an image forming unit, placed on a processing tray, a staple unit, a discharge unit, and a discharge tray. A first mode of the system is to discharge the recording material conveyed from the image forming unit to the discharge tray via the processing tray and a second mode involves waiting for instruction for executing. When the detection unit detects the recording material inserted into the processing tray in the second mode, and a recording material first mode conveying instruction is issued in a state of waiting for the executing instruction after the recording material detection, a discharge operation is performed to discharge the recording material inserted into the processing tray to the discharge tray without the staple unit executing staple processing on the recording material inserted into the processing tray.

Abstract: A binding device includes: an upper teeth portion having at least one teeth row that forms unevenness in a recording material bundle; a lower teeth portion having at least one teeth row that forms unevenness in the recording material bundle and being paired with the upper teeth portion; and at least one holding portion that holds the recording material bundle at a position different from a position where the upper teeth portion and the lower teeth portion have a binding function, when binding processing is performed by the upper teeth portion and the lower teeth portion.

Abstract: A sheet processing apparatus for processing sheets includes: a stack tray on which a sheet is stacked; a discharge roller pair composed of first and second rollers and configured to discharge a sheet onto the stack tray, the second roller being configured to be movable between a pressure contact position to contact with the first roller and a retracting position to separate from the first roller; and a pressure contact/separation mechanism for moving the second roller from the retracting position to the pressure contact position. The pressure contact/separation mechanism changes the timing at which the second roller reaches the pressure contact position according to the type of a sheet to be discharged.

Abstract: An example sheet guide devices comprises a housing and a guide member coupled to the housing. The housing is to receive a stack of sheets to staple. The guide member includes a cylinder shaft, a counterbalance component, and guide arm. The cylinder shaft is rotatable and disposed within the housing. The counterbalance component is disposed with the cylinder shaft to shift a center of gravity of the guide member in a first direction. The guide arm is disposed off-center from a central axis of the cylinder shaft in a second direction.

Abstract: A post-processing apparatus includes a conveyance unit, a discharge port, a tray, an elevation unit, a detection unit, and a control unit. The conveyance unit conveys a print medium supplied from an image forming apparatus. The discharge port discharges the print medium conveyed by the conveyance unit. The tray is stacked with the print medium discharged from the discharge port and can be raised and lowered in a vertical direction. The elevation unit raises and lower the tray in the vertical direction. The detection unit detects a top surface of an uppermost print medium of one or more sheets of print media stacked on the tray. The control unit controls the conveyance unit and the elevation unit and hold a relative position of the top surface with respect to the discharge port if the print medium is discharged from the discharge port at a first position.

Abstract: The first cutter that cuts, in the direction transverse to the unwinding direction, a continuous sheet of additional member unwound and drawn by a length in accordance with the thickness of the book block is arranged at the input port of the trimming station, the transport mechanism that transports the cut additional member from the first cutter out in the unwinding direction of the continuous sheet of additional member is arranged downstream of the first cutter, the second cutter that trims the cut additional member being transported on the transport path in the unwinding direction is arranged in the transport path of the transport mechanism, and the position of the blades of the second cutter may be adjusted in the direction transverse to the unwinding direction in accordance with the head-to-foot length of the book block.

Abstract: A post-processing unit includes a stapler, a driving section, and a controller. The stapler is moved in a Y direction and executes a stapling process on a paper sheet. The driving section moves the stapler in the Y direction. The controller controls an operation of the stapler and an operation of the driving section. The controller executes first control to supply a set current or a set voltage to the driving section, second control to supply, to the driving section, the same supply current as the set current or the same supply voltage as the set voltage, and third control to stop the supply of the supply current or the supply voltage. When the stapler executes the stapling process a plurality of times, the controller repeatedly executes the second control and the third control and causes the stapler to execute the stapling process during the execution of the second control.

Abstract: One embodiment of the present disclosure provides a post-processing apparatus for an image forming apparatus which arranges paper ejected from an ejection part of an image forming apparatus on a fence for post-processing.

Abstract: A conveyor includes: a receiver that detachably receives a roll-like sheet; a conveyance unit that conveys the sheet in a conveyance orientation along a conveyance surface; and a tensioner that applies tension to the sheet at a position upstream of the conveyance unit in the conveyance orientation. The tensioner includes: a frame having a groove pair extending in a first direction along the conveyance orientation; a guide having a curved surface that contacts the sheet and an engagement member pair that engages with the groove pair; a pivoting member that pivots around an axis extending in a second direction orthogonal to the first direction and parallel to the conveyance surface; a transmission member that transmits pivoting of the pivoting member to the guide; and an urging member that applies urging force including a component in the first direction to the guide.

Abstract: A sheet processing apparatus includes: a processing tray section having a sheet mounting surface on which a transported sheet is mounted and a processing section that performs processing on the sheet; a side edge alignment section that is provided on the processing tray section and aligns a side edge of the sheet; a lower support section that is provided downstream of the processing tray section in a transport direction of the sheet and supports the sheet from below; and a discharge tray located below the lower support section. The side edge alignment section performs a shift operation of shifting the sheet in a shift direction orthogonal to the transport direction of the sheet. The lower support section moves in the shift direction in conjunction with a movement of the sheet in a state of supporting the sheet from below during the shift operation by the side edge alignment section.

Abstract: A stacking device which is detachably attached to an apparatus body of an image forming apparatus having an abutting member that abuts on a recording material and on which a recording material is stacked includes: a first supporting unit that supports the recording material from a lower side of the recording material; and a second supporting unit that supports an end of the recording material in an attachment/detachment direction of the stacking device. The second supporting unit includes a corresponding region, and a position of the corresponding region agrees with a position of the abutting member abut with the recording material in a width direction which is orthogonal to the attachment/detachment direction. At least a height of the corresponding region in a direction orthogonal to the attachment/detachment direction and the width direction is lower than a height of the abutting member.

Abstract: An image forming apparatus includes a cover portion and an auxiliary tray. The cover portion is displaced between a closing position for closing the supply port and an opening position for opening the supply port. The auxiliary tray is attached to a sheet stack surface of the cover portion, and supports the sheet, together with the cover portion at the opening position. The auxiliary tray is, either in a first attachment state or in a second attachment state, attached to the cover portion. In the first attachment state, a longitudinal direction of the auxiliary tray extends along a width direction that crosses a sheet insertion direction and the auxiliary tray is stored in the sheet stack surface. In the second attachment state, the longitudinal direction extends along the sheet insertion direction, and the auxiliary tray extends out from the cover portion toward an upstream in the sheet insertion direction.

Abstract: A sheet material cutting device includes a cutting blade and a guard member. The cutting blade is displaceably disposed and cuts a web-shaped sheet material. The guard member faces the sheet material and has a slit through which the cutting blade passes when the cutting blade is displaced to a cutting position.

Abstract: A method in which, while an article is carried with a main portion in contact with a carrying surface and a to-be-folded portion in contact with a folder plate, includes: a first guiding step, wherein a first guide surface guides the to-be-folded portion of the unfolded article, on a side of the carrying surface, in parallel to the carrying surface; a second guiding step, following the first guiding step, wherein a second guide surface, while being in contact with the to-be-folded portion, gradually raises the to-be-folded portion while moving downstream; and a third guiding step, following the second guiding step, wherein a third guide surface guides the to-be-folded portion so that the to-be-folded portion is folded onto the main portion.

Abstract: A cutting device is configured to cut, in an arc shape, an end of a sheet conveyed in a conveyance direction. The cutting device includes an arc-shaped cutting blade; a switching mechanism; and a contact-and-separation mechanism. The switching mechanism is configured to switch a posture of the cutting blade in accordance with a position of the sheet facing the cutting blade. The contact-and-separation mechanism is configured to bring the cutting blade into contact with the sheet in a contact direction orthogonal to a surface of the sheet and away from the sheet in a separation direction opposite the contact direction, to cut the end of the sheet in the arc shape.

Abstract: The present invention is to provide a sheet conveying apparatus capable of reliably detecting a full-load state of a storage section for storing sheets discharged from a sheet conveyance path when an abnormality such as multi feed is detected, a sheet feed apparatus is provided with a multi feed sheet storage section disposed below a common conveyance path to store multi-fed sheets with multi feed detected, and a flap member rotating between a first rotation position for supporting a sheet in the common conveyance path to be able to convey to the downstream side in a conveyance direction, and a second rotation position for guiding to the multi feed sheet storage section, and determines that the multi feed sheet storage section is in a full-load state in detecting that the flap member does not return to the first rotation position.

Abstract: A sheet alignment apparatus includes a supporting portion configured to support a sheet, a first alignment member configured to abut an end portion in a first direction of the sheet supported by the supporting portion and align a position of the sheet in the first direction, a first moving unit configured to move the first alignment member in the first direction, a second alignment member configured to abut an end portion in a second direction of the sheet supported by the supporting portion and align a position of the sheet in the second direction, the second direction being perpendicular to the first direction, and a second moving unit configured to move the second alignment member in the second direction, wherein the first moving unit is disposed below the supporting portion, and wherein the second moving unit is disposed above the supporting portion.