A sheet safekeeping apparatus comprises a multistage tray in which a plurality of housing sections for accommodating sheets is arranged in a first direction, a removal port through which the accommodated sheet is taken out being formed in each of the plurality of the housing sections, and a cover configured for to close the removal port in an openable manner being provided in each of the plurality of the housing sections; a support section configured to support the multistage tray; a tray displacement unit configured to displace the multistage tray in the first direction with the support section; a conveyance unit configured to convey a sheet to the plurality of the housing sections; and a cover displacement unit configured to displace the cover of one housing section determined by an operation of the tray displacement unit among the plurality of the housing sections to open the removal port.

A media-sheet stacking system for stacking media sheets on a device output tray comprises a kicker to advance a media sheet along the output tray by pushing a trailing edge of the media sheet as it exits the device, and a movable element arranged to face the output tray across a space that receives media sheets exiting the device. A drive mechanism is provided to drive the movable element in the direction of advance of the media sheet along the output tray.

A sheet discharge apparatus includes a first tray for stacking sheets, and a sheet bundle forming unit that forms a sheet bundle on the first tray. The sheet bundle forming unit forms a first sheet bundle on the first tray, and forms a second sheet bundle on the first sheet bundle to be offset from the first sheet bundle. When forming each of the first sheet bundle and the second sheet bundle on the first tray, the sheet bundle forming unit divides sheets constituting each of the sheet bundles into a plurality of sets and discharges the sheets in a plurality of times for each sheet bundle. A number of sheets included in a first sheet set of the first sheet bundle is set smaller than a number of sheets included in a first sheet set of the second sheet bundle.

A printing device includes, in one example, a media output system including a mezzanine level including a plurality of media support members, the mezzanine level being intermediate to a floor level and a media output level; wherein the plurality of media support members move orthogonally relative to a print media path so that a number of finishing processes may be performed on print media accumulated on the number of media support members.

It is an object of the present invention to provide method for receiving sheets for a sheet supplying apparatus. The method includes converting an up and down motion of a tray to a rotational motion of a rotary member by a movement conversion mechanism, converting the rotational motion of the rotary member around a rotational axis to a linear motion of a cylindrical member parallel to the rotational axis by the rotary member and a cam and slider mechanism, and elastically pressing an end portion of the cylindrical member of the cam and slider mechanism in the rotational axis direction to lift the tray by a compression spring.

A sheet accommodating device includes a regulating member that regulates end portions of sheets and a moving member movably provided in a body of the sheet accommodating device. The regulating member is detachably provided on the moving member. A moving region of the moving member includes a size regulation region where the end portions of the sheets are regulated and a predetermined non-size regulation region excluding the size regulation region. The sheet accommodating device is configured to permit the regulating member to be attached to and detached from the moving member in a predetermined attaching and detaching position of the non-size regulation region and prohibit the regulating member from being detached from the moving member in a detachment prohibition region of the moving region excluding the attaching and detaching position.

It is an object of the present invention to provide method for receiving sheets for a sheet supplying apparatus. The method includes converting an up and down motion of a tray to a rotational motion of a rotary member by a movement conversion mechanism, converting the rotational motion of the rotary member around a rotational axis to a linear motion of a cylindrical member parallel to the rotational axis by the rotary member and a cam and slider mechanism, and elastically pressing an end portion of the cylindrical member of the cam and slider mechanism in the rotational axis direction to lift the tray by a compression spring.

The present invention is to provide a sheet discharge device capable of preventing the lowermost sheet on a tray from being displaced. A present sheet post-processing device includes a first tray for stacking a sheet, a processing tray that temporarily stacks conveyed sheets until a number of the sheets reaches a predetermined number, and a discharge mechanism that discharges the sheets stacked on the processing tray onto the first tray. A sheet bundle forming unit divides, when forming a first sheet bundle on the first tray, sheets constituting the first sheet bundle into a plurality of sets and discharges the sheets a plurality of times for each set. At this time, a number of sheets included in a sheet set to be discharged at the first time is smaller than a maximum number of sheets included in sheet sets to be discharged at the second and subsequent times.

A sheet conveying device includes a correcting unit. The correcting unit corrects displacement of a sheet conveyed from an upstream side conveying path, and conveys the sheet to a downstream side conveying path. The correcting unit includes a first conveying part conveying the sheet, a first moving part moving a first frame supporting the first conveying part and a detecting part detecting a side end edge of the sheet at a reference position without displacement. The first conveying part stops conveyance of the sheet when a leading end of the sheet reaches the detecting part. While the driving of the first conveying part is stopped, the first moving part moves the first frame to move the sheet, and stops movement of the first frame, when detection result of the detecting part is changed, to position the side end edge to the reference position to correct displacement of the sheet.

A sheet processing apparatus is provided with a carry-in path for guiding a sheet from a carry-in entrance, a shift roller provided in the carry-in path to transport the sheet, while shifting, a carry-in roller positioned on the downstream side of the shift roller to carry the sheet from the carry-in path toward a collection tray, and a punch shift unit provided on the upstream side of the carry-in roller to process an end portion of the sheet in a processing position. The punch shift unit shifts in the same direction as the shift roller, a shift amount of the punch shift unit is set to be equal to a shift amount of the shift roller or more, and the end portion processing unit is thereby already positioned in an end portion processing position or a position near the processing position after shifting the sheet.