A slider moving in a sliding direction between first and second positions shifts a second path-defining member, relative to a first path-defining member, between first and second states. A pair of movable members each disposed on a corresponding side of a slider in a width direction is movable individually in the sliding direction to shift between third and fourth states. The movable members, when both in the third state, position the slider to the first position and, when both in the fourth state, position the slider to the second position. Each movable member supports a corresponding widthwise end of the slider immovably in the sliding direction and movably in the width direction. A support frame supporting the second path-defining member supports a widthwise central portion of the slider movably in the sliding direction and rotatably on a plane parallel to the sliding direction and the width direction.

According to an embodiment, a sheet processing apparatus includes a first tray, a second tray, a first member, and a second member. The first member presses a first portion of a sheet toward the second tray when the sheet is moved from the first tray to the second tray located below the first tray. The second member is interlocked with the first member, and when the sheet is moved from the first tray to the second tray, presses a second portion of the sheet toward the second tray, the second portion being located downstream of the first portion in a transport direction of the sheet to the first tray.

An image reading apparatus includes a first displacement member configured to be displaced between a first non-contact position at which a medium and a feeding roller do not contact with each other and a first contact position at which those contact with other, and a second displacement member configured to be displaced between a second non-contact position at which the medium and the feeding roller do not contact with each other and a second contact position at which those contact with other. The second displacement member is displaced from the second non-contact position to the second contact position as the first displacement member is displaced from the first non-contact position to the first contact position, and is displaced from the second contact position to the second non-contact position as the first displacement member is displaced from the first contact position to the first non-contact position.

An image forming apparatus includes a sheet feeding cassette, a pickup roller to feed a sheet stored in the sheet feeding cassette, a conveyance roller, an image forming portion, first and second conveyance guides, a driving motor, a torque detection unit, and a control unit. The torque detection unit detects a value related to a driving torque of the driving motor produced in a period when the pickup roller feeds the sheet. The control unit determines an image forming condition under which image formation is to be performed on the sheet at the image forming portion. The control unit determines the image forming condition in accordance with a performed result of detection by the torque detection unit performed in a period in which the sheet is guided with both the first conveyance guide and the second conveyance guide by being conveyed with the conveyance roller and the sheet is bent.

A sheet processing apparatus according to an embodiment includes a first tray that holds a sheet transported to the sheet processing apparatus in a sheet transport direction. A second tray is provided below the first tray and holds the sheet moved from the first tray. A first member, when the sheet is moved from the first tray to the second tray, rotates about a turning shaft, and presses a first portion of the sheet toward the second tray by making a pressing portion of the first member contact with the first portion. A second member, when the sheet is moved from the first tray to the second tray, protrudes toward the second tray at a position between the turning shaft and the pressing portion of the first member, and presses a second portion of the sheet toward the second tray, the second portion being located downstream of the first portion.

A medium placement unit including a placement surface on which a medium is placed and a restriction section that is movable relatively with respect to the placement surface in each of a first direction and a second direction and that restricts movement of the medium, wherein the restriction section has a first portion and a second portion, the placement surface is provided with a plurality of third portions arranged in parallel to the first direction and a fourth portion that engages with the restriction section, when the plurality of third portions engage with the first portion, it restricts movement of the restriction section in the first and second directions, the fourth portion is provided at a position corresponding to a predetermined size medium, the restriction section can change the third portion that engages the first portion while maintaining the state of the second portion engaging with the fourth portion.

An image forming apparatus includes a first sheet feeding portion, a second sheet feeding portion, an image forming portion, a paper dust collecting portion, a merging portion, a rotatable member, a first guiding member, and a second guiding member. The paper dust collecting portion is provided downstream of the first sheet feeding portion and the second sheet feeding portion and upstream of the merging portion with respect to a conveying direction of a recording material.

A sheet processing apparatus according to an embodiment includes a first tray that holds a sheet transported to the sheet processing apparatus in a sheet transport direction. A second tray is provided below the first tray and holds the sheet moved from the first tray. A first member, when the sheet is moved from the first tray to the second tray, rotates about a turning shaft, and presses a first portion of the sheet toward the second tray by making a pressing portion of the first member contact with the first portion. A second member, when the sheet is moved from the first tray to the second tray, protrudes toward the second tray at a position between the turning shaft and the pressing portion of the first member, and presses a second portion of the sheet toward the second tray, the second portion being located downstream of the first portion.

A sheet feeder includes a sheet feeding unit configured to feed a sheet from a sheet storage case in a sheet feeding direction orthogonal to a loading direction in which the sheet storage case is loaded into an apparatus main body, and a conveying guide configured to guide the sheet fed by the sheet feeding unit. The conveying guide includes a first guide segment included in the apparatus main body and a second guide segment included in the sheet storage unit. The sheet feeder further includes an edge guide member disposed at an end of the first guide segment. The edge guide member has a guide surface that allows reaction force including a directional force component acting upward and a directional force component acting in a direction opposite to the sheet feeding direction to be generated when the sheet partly projecting from the sheet storage case abuts the guide surface.

A recording medium processing apparatus includes a rotator that rotates a recording medium transported thereto about a normal to a surface of the recording medium.