A document feeder, which may be incorporated in an image forming apparatus, includes a sheet conveying guide, at least one recess, a frame, and at least one protrusion. The sheet conveying guide is disposed facing an exposure glass on an apparatus body and guides an original document passing over the exposure glass when the document feeder is closed to the apparatus body. The recess is disposed on the apparatus body at both ends of the exposure glass in a lateral direction orthogonal to a document conveying direction. The frame is openably closable about one end side of the apparatus body in the lateral direction and vertically movably holds the sheet conveying guide. The protrusion is disposed on the frame facing the recess. The sheet conveying guide and the frame are secured to each other while the recess and the protrusion are engaged with each other in the closed state.

A recording-medium-container device includes a container configured to contain a stack of recording media; a blower configured to blow gas to the recording media contained in the container; and an image capturer movable in a stacking direction in which the recording media are stacked in the container, the image capturer being configured to capture an image of the recording media while the recording media are being blown with the gas by the blower.

A conveying apparatus includes: a first casing having a first bottom portion and formed with a conveyance path in which a sheet is conveyed; a first tray provided for the first casing and supported by the first bottom portion; a first feeding section arranged above the first tray in the first casing and configured to feed a sheet supported by the first tray in a feeding direction toward the conveyance path; a second casing being detachably attached to the first casing and located below the first bottom portion in a state that the second casing is attached to the first cashing; a second tray provided for the second casing; and a second feeding section arranged above the second tray in the second casing and configured to feed a sheet supported by the second tray in the feeding direction toward the conveyance path.

A sheet conveying device includes: a conveyor configured to convey a sheet; a cover configured to cover the conveyor; a guide spaced apart from the cover; and a movable member mounted on a first member which is one of the cover and the guide. The movable member is pivotable between a first position and a second position and located at the second position when the sheet is being conveyed. The movable member has a free end which is moved toward a second member while the movable member is being pivoted from the second position to the first position about a pivot center. The second member is another of the cover and the guide. The free end is contactable with the second member by an approach of the cover toward the guide when the movable member is located at the first position.

An image forming apparatus includes an image scanning section, an exit tray, and an upper housing. The image scanning section scans an image of an original document. The exit tray is disposed below the image scanning section. A sheet bearing an image is ejected onto the exit tray. The upper housing houses the image scanning section. The image forming apparatus has a sheet ejection space that is formed between the exit tray and the upper housing. A user's hand is inserted into the sheet ejection space for taking out the sheet from the exit tray. The upper housing includes a bottom plate having a surface that faces the exit tray. The bottom plate includes a plurality of reinforcing members that are disposed on the surface of the bottom plate and that extend in a direction in which the user takes out the recording medium from the exit tray.

A sheet material storage includes a housing space structure that forms a housing space to house a sheet material and an acoustic device that uses a Helmholtz resonator. At least a part of a cavity of the Helmholtz resonator is formed in the housing space structure.

A transportation portion includes an apparatus body, a cover, first and second path formation portions, and a movement portion. The apparatus body has a transportation path including a downward path and an upward path having portions located at the same level in the Z direction. The cover covers and uncovers the transportation path. The first path formation portion is movable to a first position and to a second position. The second path formation portion defines the upward path and defines the downward path with the first path formation portion. The movement portion moves the first path formation portion in response to opening or closing of the cover. The first path formation portion is positioned in a movement area during a closed state. The movement portion moves the first path formation portion to the second position when the cover is opened and to the first position when the cover is closed.

A sheet processing apparatus includes a first guide plate and a second guide plate facing with a given space in a thickness direction and having second and third openings, a sheet conveyance passage between the first and second guide plates, and a sheet conveyor including a drive source, a drive roller, a first driven roller, and a second driven roller. The drive roller protrudes from the first guide plate toward the sheet conveyance passage through the first opening. The first driven roller faces the drive roller and protrudes from the second guide plate toward the sheet conveyance passage through the second opening. The second driven roller protrudes from the second guide plate toward the sheet conveyance passage through the third opening. The second driven roller is disposed at a position shifted from the drive roller in a width direction orthogonal to the sheet conveyance direction and the thickness direction.

A liquid discharge apparatus includes a liquid discharge head, a stage, a guide rail, and an opening-and-closing cover. The liquid discharge head discharges a liquid to a recording medium. The stage moves in a vertical direction to move the recording medium on the stage. The guide rail holds the stage. The stage is movable in a conveyance direction intersecting the vertical direction. The opening-and-closing cover is slidable in one of the conveyance direction and a main scanning direction intersecting both the conveyance direction and the vertical direction. The opening-and-closing cover includes a retraction portion retractable above the stage.

An image reading apparatus includes a base unit, a conveyance roller to convey a sheet, a reading unit, an openable cover having a first contact portion, a guide member having a second contact portion, and an urging member. The guide member is rotatable between a first position where the reading unit is covered and a second position where the reading unit is exposed. The urging member urges the guide member in a direction from the first position toward the second position. During closing of the openable cover, the first contact portion presses the second contact portion and the guide member moves against an urging force of the urging member. A position of the guide member in a rotation direction in a state in which the openable cover is closed is determined by the first contact portion and the second contact portion coming into contact with each other.