A sheet conveyance apparatus includes: a supply-sheet supporter having a supply support surface that supports a sheet; a conveyor configured to convey the sheet from the supply-sheet supporter along a conveyance path; and a discharged-sheet supporter disposed above the supply-sheet supporter and configured to support the sheet conveyed by the conveyor. The discharged-sheet supporter includes: a particular end portion located farthest from the conveyor in the discharged-sheet supporter and opposed to the supply support surface from above; and a movable member including the particular end portion at one of opposite end portions of the movable member, which one is farther from the conveyor than another of the opposite end portions. The movable member is pivotable in a direction in which a distance between the particular end portion and the supply support surface is increased.

In a sheet feeding device, a document mounting board includes a first member that includes a first mounting surface and is located on the feed mechanism side in the feeding direction of the documents in the feed mechanism, the first mounting surface being inclined to a lower side toward the feed mechanism, and a second member that includes a second mounting surface on which the documents are mounted and is disposed on a side opposite to the side of the first member on which the feed mechanism is located, and the second member is connected to the first member to be rotatable about a second turning shaft and turns about the second turning shaft depending on the weight of the documents detected by the weight sensor to change an angle with respect to the first member.

A paper output tray, which can be included in a paper output unit in an image forming apparatus, includes a tray body, a paper support extension slidably attached to the tray body and arranged switchable between a stored state in which the paper support extension is stored in the tray body and an extended state in which the paper support extension is pulled out to extend from the tray body, and a stopper rotatably attached to the paper support extension and arranged switchable between a folded state in which the stopper is folded to the paper support extension and a standing state in which the stopper is raised from the paper support extension. With the paper support extension in the stored state and the stopper in the folded state, the stopper overlaps an outer surface of the tray body.

An image recording apparatus includes: a casing; a sheet-feeder tray having a supporting surface for supporting a sheet-shaped recording medium; a recording unit which is configured to record an image on the recording medium fed from the sheet-feeder tray; a discharge roller pair configured to discharge, from the casing, the recording medium on which the image has been recorded by the recording unit; an opening-closing member which is provided on the downstream of the discharge roller pair in a direction in which the recording medium is discharged by the discharge roller pair and is rotatable between a first position where a discharging slot of the recording medium discharged by the discharge roller pair is closed and a second position where the discharging slot is open; and a restricting mechanism configured to restrict the rotation of the opening-closing member from the second position to the first position.

A discharge apparatus includes: a discharge mechanism including a discharge port and discharging a recording medium from the discharge port in a first direction; a receiving member having a receiving surface which receives the recording medium discharged from the discharge port; an abutting member haying an abutting surface which abuts against an upstream end or a downstream end in the first direction of the recording medium received by the receiving surface; and guide members extending upward beyond the receiving surface and guiding the recording medium which is discharged from the discharge port to fall toward the receiving surface, from both sides in a second direction orthogonal to the first direction and parallel to the receiving surface. The guide members respectively include protruding portions protruding inward in the second direction and extending in a longitudinal direction of the guide members.

A medium storage cassette includes a medium storage portion that stores a medium; and a medium support tray that is provided in the medium storage portion such that the medium support tray can be displaced with respect to the medium storage portion in a slidable manner, the medium support tray being able to be set in a contained state that is a state in which the medium support tray is slid to an upper portion of the medium storage portion and being able to be set in an extended state that is a state in which a medium supporting surface that supports the medium becomes an inclined surface that is oriented obliquely upwards towards an end portion of the medium support tray and in which the medium supporting surface is extended outside of the medium storage portion.

A stacking device includes: a first stacking portion having a stacking surface on which a sheet is stacked; a widthwise direction regulating unit, provided movably relative to the first stacking portion in a widthwise direction of the sheet, for regulating a widthwise position of the sheet stacked on the stacking surface; a second stacking portion provided rotatably relative to the first stacking portion between a first position and a second position. The second stacking portion is overlaid on the first stacking portion at the first position and supports, at the second position, an upstream portion of the sheet with respect to a feeding direction of the sheet fed by a sheet feeding unit. The second stacking portion is provided with a cut-away portion to avoid interference with the widthwise direction regulating unit when rotates between the first position and the second position.

A distance detector includes a distance-measuring sensor, a first detection surface, a second detection surface, and processing circuitry. The first detection surface is perpendicular to an optical axis of the distance-measuring sensor. The second detection surface is behind or in front of the first detection surface with respect to the distance-measuring sensor. The second detection surface has two faces inclined with respect to the optical axis of the distance-measuring sensor. The first detection surface or the second detection surface is retractable from the distance-measuring sensor. The processing circuitry determines whether the first detection surface or the second detection surface is detected by the distance-measuring sensor and causes the distance detector to detect a distance from the distance-measuring sensor to the first detection surface based on detection of the first detection surface by the distance-measuring sensor.