A post-processing device includes an output unit that outputs a medium; a stacking unit on which the medium that is output is stacked; and a blow-out unit that is disposed below the output unit and that blows gas toward the medium that is output, wherein a direction in which the gas is blown differs in accordance with a type of the medium.

A sorting device includes a base portion and a tray portion. The tray portion is supported on the base portion to be reciprocatable between a first shift position, where the tray portion is located at one side in the sheet width direction, and a second shift position, where the tray portion is located at the other side in the sheet width direction. The tray portion has a cutout portion. The cutout portion is formed by cutting away, with a predetermined width, an end part of the tray portion in the sheet width direction inward across the tray portion. With the tray portion at the second shift position, the cutout portion is located below one side end edge of the sheet in the sheet width direction, of sheets stacked on the tray portion.

It is an object to provide a sheet conveying apparatus excellent in productivity, and a sheet conveying apparatus is provided with a sheet conveying section for conveying a sheet in a predetermined conveyance direction, a placement portion to place sheets conveyed by the sheet conveying section, a contact portion for coming into contact with an upstream side end portion in the conveyance direction of placed sheets placed in the placement portion, a sheet discharge section for shifting the contact portion to the downstream side in the conveyance direction and thereby discharging the placed sheets from the placement portion, and a sheet conveyance guide portion for supporting a front end of a next sheet conveyed to the placement portion by the sheet conveying section on the upstream side of the contact portion in the conveyance direction, where the sheet conveyance guide portion is provided with an inclined face for supporting the front end of the next sheet discharged to the placement portion.

A stacked-sheet detection device includes a main shaft portion, a first detection arm portion, a parallel shaft portion, a second detection arm portion, an interlocking arm portion, a detected portion, and a detection sensor. The second detection arm portion is provided outside a first passing range, rotates in a predefined rotation direction and causes the interlocking arm portion to rotate in the predefined rotation direction by contacting a sheet that passes through a second passing range. When at least one of the first detection arm portion and the interlocking arm portion rotates in the predefined rotation direction, the main shaft portion rotates in the predefined rotation direction, and the detected portion rotates in the predefined rotation direction.

An image forming apparatus includes an output unit to which a recording medium on which an image has been formed is output, the output unit including an output unit body, and an extension portion that is disposed on the output unit body so as to be extendable from the output unit body in an output direction of the recording medium, the extension portion including a handle portion that is recessed in a direction away from a back surface of the recording sheet so as allow a finger to be hooked in a direction in which the extension portion is extended in the output direction of the recording medium, the back surface being a surface that is in contact with the output unit body, and a protrusion that protrudes toward the back surface of the recording medium from the extension portion.

An image forming apparatus includes an output unit to which a recording medium on which an image has been formed is output, the output unit including an output unit body, and an extension portion that is disposed on the output unit body so as to be extendable from the output unit body in an output direction of the recording medium, the extension portion including a handle portion that is recessed in a direction away from a back surface of the recording sheet so as allow a finger to be hooked in a direction in which the extension portion is extended in the output direction of the recording medium, the back surface being a surface that is in contact with the output unit body, and a protrusion that protrudes toward the back surface of the recording medium from the extension portion.

In one example a bend sensor is disclosed. The bend sensor extends into a media tray. The bend sensor has a tip where a deflection amount of the tip indicates a media parameter.

A sheet stacking apparatus including a control portion is configured to execute: a first mode in which the control portion causes a bundle forming portion to form a bundle of sheets including a sheet supported by a first placement portion and a sheet placed on a second placement portion; and a second mode in which a downstream end portion of a bundle of sheets formed in the second mode is positioned upstream of a downstream end portion of a bundle of sheets to be formed in the first mode, and wherein the control portion sets a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the second mode to be smaller than a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the first mode.

A sheet conveying device has a body and a frame supporting it, and is insertable or extractable along a sheet stacking face formed in an in-body discharge space in an image forming apparatus and having an inclined face with an upward gradient toward the downstream side in the sheet discharge direction. On the face of the frame opposite the sheet stacking face, a plurality of first and second wheels rotatable in the insertion or extraction direction are provided downward of the center of the opposite face in the insertion direction. The first wheels are arranged downstream of the second wheels in the insertion direction, and protrude from the opposite face farther than the second wheels. The first wheels fit into a concave portion formed in the sheet stacking face by the inclined face and thereby enable the second wheels to make contact with the sheet stacking face.

Provided is a sheet processing apparatus, including: a placement portion to which a sheet conveyed by a conveyance portion in a conveyance direction is placed; a processing portion configured to perform predetermined processing on a sheet placed on the placement portion, and to be movable in a predetermined moving range; and a control portion configured to control the processing portion to position, at a timing at which a sheet conveyed by the conveyance portion passes through the moving range, from a first position of preventing from interfering with the sheet to a second position of performing the predetermined processing on a preceding sheet having been conveyed by the conveyance portion and placed on the placement portion before the sheet.