An image forming apparatus includes an image forming part, a scanner part to moving up and down with respect to the image forming part, and a pair of side walls located between the image forming part and the scanner part while facing each other, the pair of side walls including a fixed side wall supported by the image forming part and a lifting side wall to moving up and down with respect to the fixed side wall and supported by the scanner part.

An operation unit is provided on a front side of the image forming apparatus. A document feeding portion feeds a document supported by a document supporting portion in a document feeding direction from a front side of the image forming apparatus toward the rear side of the image forming apparatus. A document discharge portion discharges the document in a document discharge direction from the rear side toward the front side. The operation unit is disposed on one side with respect to an apparatus center of the image forming apparatus in a left-right direction orthogonal to a direction from the front side to the rear side. A conveyance center of the document feeding portion in the left-right direction is disposed on the other side with respect to the apparatus center in the left-right direction.

A document supporting portion includes a first supporting portion and a second supporting portion. The first supporting portion has a first supporting surface that supports a document. The second supporting portion has a second supporting surface that supports the document together with the first supporting surface and provided so as to be slidable between a first position at which the second supporting portion located above the first supporting portion and a second position at which the second supporting surface supports the document together with the first supporting surface. In a state where the second supporting portion is located at the first position, the second supporting surface constitutes a portion of an upper surface of the document feeding apparatus.

An image reading apparatus includes a body support section, an apparatus body supported by the body support section, and a reading section configured to read a document. The apparatus body is configured to rotate about a rotation shaft with respect to the body support section and the apparatus body is rotated to be switched to a first position or a second position, a position of the center of gravity of the apparatus body is located at a position vertically above a shaft axis of the rotation shaft and closer than the shaft axis to an apparatus front in an apparatus depth direction when the apparatus body is in the first position, and is located at a position vertically above the shaft axis of the rotation shaft and closer than the shaft axis to an apparatus rear in the depth direction when the apparatus body is in the second position.

An image-reading device is provided that includes a reading component configured to read a document, a document holding portion, a detector detecting a position of the document holding portion, a power supply device that supplies power to the reading component, and a power supply control device that controls power supplied by the power supply device to the reading component. The power supply control device determines whether a change in the position of the document holding portion has occurred based on the position of the document holding portion detected by the detector. When a change in position is detected and the image reading device is not performing document reading, the power supplied to the reading component is reduced. If a change in position is detected while the image reading device is performing document reading, the power supplied to the reading component is maintained.

There is provided an image forming apparatus including a scanner unit configured to be openable on an apparatus front side with respect to a printer unit due to a first hinge portion on an apparatus rear side, a cover to cover a feed port configured to be openable due to a second hinge portion on the apparatus front side of the feed port, wherein a rotation axis of the first hinge portion is positioned on the apparatus rear side of a rotation axis of the second hinge portion in an apparatus depth direction. Interlocking with an operation to open the scanner unit, the cover moves while a portion thereof is in contact with a surface of the paper feed tray or the sheet placed thereon to open the cover in an interlocking manner.

An image forming apparatus includes an apparatus body, a sheet stacking portion on which a sheet discharged from the apparatus body is to be stacked, an extension member, and an upper device. The extension member is rotatable about a rotating fulcrum between a first position at which the extension member is stored in the sheet stacking portion and a second position at which the extension member extends to downstream of the sheet stacking portion in a sheet discharge direction in which the sheet is discharged from the apparatus body. The upper device is disposed above the rotating fulcrum of the extension member and is supported to be openable by the apparatus body. The upper device in a closed state regulates a rotation of the extension member from the first position toward the second position.

An image reading device includes a first image reading unit to read an image of a medium placed on a placement portion, a cover unit, and a hinge portion. The cover unit is rotatable in a first direction from a first position to cover the placement portion toward a second position and in a second direction from the second position toward the first position. The hinge portion has a first opening provided on a placement portion side, a second opening provided on a cover unit side, a first space in which a first cable extending from the first opening toward the second opening is disposed, and a second space that is adjacent to the first space via a partition portion and in which a second cable extending from the first opening toward the second opening is disposed. The first space extends in the first direction near the first opening.

An image reading apparatus includes a first supporting portion, a sheet conveyance portion, an image reading portion, a second supporting portion, and an illumination portion. The image reading portion is configured to read an image of the sheet conveyed by the sheet conveyance portion. The second supporting portion is disposed below the first supporting portion and configured to support the sheet whose image has been read. The illumination portion is disposed further on an outside than a sheet supporting region of the second supporting portion in a width direction perpendicular to a sheet discharge direction, configured to illuminate the second supporting portion, and provided such that a light emission direction of the illumination portion is directed to the sheet supporting region.

A method for processing images in an imaging device includes the steps of using real time scalar software (RTSS) for: receiving scalar input data (SID) from video preview application software (VPAS) within a host computer; and performing scaling and cropping operations within the imaging device on raw image frame data to create a scaled down frame (SDF) within the imaging device. As a result, images of high resolution can be transmitted efficiently with significantly reduced amounts of data over the data links, and achieve a high number of frames per second.