A sheet stacking device includes a sheet stacker, an image capturing device, and circuitry. The sheet stacker stacks a sheet. The image capturing device captures an image of a whole face of the sheet stacked in the sheet stacker. The circuitry detects a size of the sheet stacked in the sheet stacker, whether the sheet stacked in the sheet stacker is a last sheet, or whether an image is formed on an image forming face of the sheet, based on image data of the image captured by the image capturing device.

A recording apparatus includes a sheet feeding device including a sheet feed tray on which a medium is mounted in an inclined orientation, a feeding roller configured to feed the medium, and a sheet feed slot that is defined by the sheet feed tray and the feeding roller i, and a recording section configured to perform recording onto the medium fed from the sheet feeding device. The recording apparatus includes a scanner unit that is disposed on a body of the recording apparatus and functions as a reading device for reading a document, and a guiding member that is inclined from a side surface of a guiding member installation section that is a side surface of the scanner unit on a sheet feed tray side in a state in which the scanner unit is closed with respect to the body of the recording apparatus.

According to an embodiment, a paper feed device includes: a tray that has a support surface on which a sheet is placed and is capable of entering a first state and a second state. The first state is a state for placing the sheet on the support surface. The second state is a state for taking out the sheet from the support surface toward a downstream side in a conveying direction and for putting the sheet in an inclined posture heading upward on the downstream side in the conveying direction than an upstream side in the conveying direction.

A sheet feeding apparatus includes an apparatus body, an opening/closing member supported on the apparatus body, a sheet support supported on the opening/closing member, and a rotary feeding member provided on the apparatus body to feed the sheet supported on the sheet support in a feeding direction. A first engagement member is provided in the apparatus body, and a second engagement member is provided on a downstream end portion of the sheet support in the feeding direction and engages with the first engagement member in a vertical direction that intersects an axial direction of the rotary feeding member when the opening/closing member is positioned at the open position. The rotary feeding member is lowered toward the sheet supported on the sheet support in a case where the opening/closing member is positioned at the open position.

A sheet feeding apparatus includes an apparatus body, an opening/closing member supported on the apparatus body, a sheet support supported on the opening/closing member, and a rotary feeding member provided on the apparatus body to feed the sheet supported on the sheet support in a feeding direction. A first engagement member is provided in the apparatus body, and a second engagement member is provided on a downstream end portion of the sheet support in the feeding direction and engages with the first engagement member in a vertical direction that intersects an axial direction of the rotary feeding member when the opening/closing member is positioned at the open position. The rotary feeding member is lowered toward the sheet supported on the sheet support in a case where the opening/closing member is positioned at the open position.

An apparatus includes an openable and closable cover, a movable member disposed in the apparatus main body and to be exposed outside when the cover is opened, an openable and closable support member that supports the movable member, and a support shaft that supports the cover and the support member. The movable member and the support member are moved together with the cover as the cover rotates about the support shaft. The support shaft can move between a first position at which the support shaft supports the cover and the support member and a second position at which the support shaft does not support the cover and supports the support member. Moving the support shaft to the second position allows the cover to be detached from the apparatus main body.

A medium supply device is provided that includes a single sheet paper accommodating unit at which media are stacked and placed, and a feeding roller configured to feed the media by rotating in contact with a top surface of the placed media. The feeding roller includes a contact portion configured to contact the single sheet paper and a non-contact portion configured to not contact the single sheet paper in a rotational direction, and a plurality of the contact portions and the non-contact portions are provided in a first direction that is an extending direction of a rotation axis of the feeding roller, and the contact portions adjacent to each other in the first direction are out of phase in the rotational direction.

In an image forming apparatus, a tray having first and second receiving portions is configured to move between a first position, at which at least part of the tray is positioned inside an apparatus body, and a second position, at which the tray is outside the apparatus body. The tray in the first position allows a first recording medium to be conveyed from the first receiving portion. When the tray is in the first position, the second receiving portion is configured to move between a third position, which is at an upstream side relative to a first opening of the apparatus body in a second direction, and a fourth position, which is at a downstream side relative to the third position in the second direction. The second receiving portion at the third position allows a second recording medium to be conveyed from the second receiving portion in the second direction.

In an image forming apparatus, a tray having first and second receiving portions is configured to move between a first position, at which at least part of the tray is positioned inside an apparatus body, and a second position, at which the tray is outside the apparatus body. The tray in the first position allows a first recording medium to be conveyed from the first receiving portion. When the tray is in the first position, the second receiving portion is configured to move between a third position, which is at an upstream side relative to a first opening of the apparatus body in a second direction, and a fourth position, which is at a downstream side relative to the third position in the second direction. The second receiving portion at the third position allows a second recording medium to be conveyed from the second receiving portion in the second direction.

An image forming apparatus includes a main body including an image forming unit to form an image on a recording medium and a tray that rotates between an open state and a closed state relative to the main body, the tray on which the recording medium is placed. The tray includes a first component located exterior to the image forming apparatus in the closed state and a second component in contact with the recording medium on the tray in the open state. The first or second component includes at least one groove portion which extends in a conveyance direction of the recording medium and the other includes at least one convex portion extending in the conveyance direction. The first and second components are bonded by adhering, with an adhesive, the at least one groove portion and the at least one convex portion put inside the at least one groove portion.