A supply device includes: a loading portion where recording media are loaded; a transport unit to transport the media; a contact portion provided on the loading portion, the contact portion being in contact with a side end portion of the media having a first size in a direction intersecting with a transport direction, the contact portion having a blowing portion to blow air to the side end portion; a guide portion detachably attached to the contact portion when media having a second size smaller than the media having the first size are loaded, the guide portion being configured to guide a side end portion of the media having the second size; and a duct provided in the guide portion, the duct including a discharge port to blow the air from the blowing portion to an upper end portion of the media having the second size loaded on the loading portion.

A medium conveying apparatus includes a tray, and a side guide in which a side guide surface opposing to an end face of a medium placed on the tray is formed, wherein the side guide includes a side guide main body that is supported by the tray, and a movable member that is supported by the side guide main body so as to be stored and expanded, a height of the movable member relative to the tray is equal to a first height that is higher than a height of the side guide main body relative to the tray when the movable member is expanded, and is equal to a second height that is lower than the first height when the movable member is stored, and a notch is formed on the movable member such that a depression is formed on the side guide surface when the movable member is expanded.

A cassette portion includes a side guide, an end guide, and a paper detection portion. The side guide is movable in X direction and controls a motion of a first end portion of paper. The end guide is provided to the side guide to be movable in Y direction, and restricts a motion of a second end portion of the paper. The paper detection portion detects the first restricting position in the X direction of the side guide and a second restricting position in the Y direction of the end guide in a restricted state of the paper. The end guide includes a detection target portion formed such that detection information to be detected by the paper detection portion varies in the Y direction. The paper detection portion detects the first restricting position and the second restricting position by obtaining detection information from the detection target portion.

An image forming device with a collapsible paper guide is provided. The image forming device includes a casing, a first tray structure and a paper guide. A medium gateway opening is formed on the casing. The first tray structure is disposed on the casing and adjacent to the medium gateway opening. The paper guide includes a first base disposed on the first tray structure and a first guiding component pivotally connected to the first base. The paper guide is switchable relative to the first tray structure between a used position and a stored position. A first included angle included between the first guiding component and the first base is less than 90 degrees when the paper guide is located at the used position, so that the first guiding component can be interfered and driven to pivotally fold for preventing the paper guide from being broken or damaged.

A sheet conveying apparatus includes: a conveyor configured to convey a sheet along a conveyance path; and a discharge tray having a support surface for supporting the sheet discharged from the conveyor. The conveyor includes a discharge unit for discharging the sheet conveyed along the conveyance path, onto the discharge tray. The discharge tray is provided with a projection protruding upward from the support surface and elongated in a direction along a discharge direction in which the sheet is conveyed. At least a portion of the projection which has a downstream edge of the projection in the discharge direction is a movable portion changeable between a first position at which an upper end portion of the projection is farthest from the support surface and a second position which is nearer to the support surface than the first position.

A sheet positioning member is provided on a sheet placing surface in such a way as to be movable in a predetermined first direction. The sheet positioning member includes a moving body, an abutting portion, an operation member, and a cam portion. The moving body moves in the first direction on the sheet placing surface. The abutting portion has an abutting surface that abuts on the side end portion when the sheet positioning member positions the sheet. The operation member is supported by the moving body so as to be pivotable around a support shaft that extends in the first direction, on a side of a back surface of the abutting portion. The cam portion displaces the abutting portion toward the side end portion by being pressed by the operation member in response to a pivoting operation of the operation member.

The present invention provides a sheet feeding apparatus capable of feeding sheets at a proper position without a regulating member being bent even if a cassette unit is closed in a state in which a large volume of sheets are stacked. A large-volume feeding deck includes a non-reference-side regulating plate, an external casing plate, and positioning members, which are movable relative to the cassette unit.

A sheet feeder includes: a sheet rack; a pair of side plates movable along a width of a sheet on the sheet rack and abuttable against both widthwise ends of the sheet; a widthwise drive device that moves the side plates along the width of the sheet; a pair of end detecting devices provided one for each of the side plates and capable of detecting both the ends of the sheet abutting the side plates, respectively; and a control device that includes a processor, controls the widthwise drive device through the processor executing a control program to allow the widthwise drive device to move, based on outputs of the end detecting devices, the side plates until abutment against both the ends of the sheet, acquires respective travel distances of the side plates moved by the widthwise drive device, and determines a size of the sheet based on the travel distances.

Examples of alignment fins for output trays of media dispensing devices are disclosed. In an example, an alignment fin is coupled to a support surface of an output tray of a media dispensing device. The alignment fin is to transition between a first position wherein the alignment fin is disposed below the support surface, and a second position wherein the alignment fin is exposed through an aperture in the support surface. When the alignment fin is in the second position, the alignment fin is to align the media dispensed from the dispensing device into a stack on the support surface.

A document conveying apparatus is provided with a document tray, a feeding member, and a discharge tray disposed below the document tray. The document tray includes an upper tray member, a lower tray member, a movable tray member movable in a width direction orthogonal to a feeding direction of a document, a tray cover disposed to cover an underside of the movable tray member, and a driving portion. The driving portion moves the upper tray member and the movable tray member integrally to a raised position and a lowered position. The movable tray member and the tray cover are configured to be moved integrally in the width direction between a first position in which the movable tray member supports the document together with the upper tray member and a second position in which the movable tray member is retracted from the first position into below the upper tray member.