A image reading device includes a reading section configured to read an image of a medium transported in a transport direction; a light transmitting member arranged between a transport path on which the medium is transported and the reading section; and an airflow generation section which is arranged on an opposite side of the light transmitting member from the reading section, which includes a hole section positioned facing the light transmitting member, and which is configured to generate airflow from the hole section toward the light transmitting member.

An image reading device includes a transporting unit that transports a recording medium along a transport path; an image reader that is disposed on one side of the transport path and that reads an image formed on the recording medium that is transported through the transport path; and a rotary body that is rotatably provided, that is disposed on a side opposite to a side where the image reader is set with the transport path being interposed between the rotary body and the image reader, and that includes an elastic body that protrudes toward the image reader.

A first reference portion has a lower surface of a first color. A second reference portion is adjacent to the first reference portion in a first direction and has a lower surface of a second color. A data processing portion executes a color determination process of determining whether one or more reference pixel data of a reference area in line image data is data of the first color or the second color. A control device sequentially selects a plurality of drive operations from a plurality of trial drive operations and causes the unit drive device to execute the plurality of drive operations, thereby positioning a scanning unit at a home position. When causing the unit drive device to execute the plurality of drive operations, the control device outputs, to the unit drive device, a speed command signal of a different level according to a moving distance of the scanning unit.

An image reading device includes a document feeder and a reader. The document feeder includes a document tray and feeds an original document loaded on the document tray. The reader includes an original glass plate, a reading unit, and a document separating member. At least one of the document feeder and the reader is provided with a fan that creates an air flow. A first duct is provided in a housing of the reader. The document separating member is provided with a plurality of first discharge holes through which the air flowing through the first duct is discharged. A second duct is provided in a housing of the document feeder. The wall of the document feeder is provided with a plurality of second discharge holes through which the air flowing through the second duct is discharged.

An image reading device includes a turning unit, a hinge, and a reading unit having a reader that reads a sheet image. The hinge turns the turning unit which turns relative to the reading unit. The reader reads, through a reading unit reading glass, an image on a sheet placed on the reading glass. The turning unit includes a pressing plate, a conveying roller, a motor, and a communication unit. The pressing plate presses a sheet against the reading glass when the turning unit is at a position closing the reading glass. The motor rotates the conveying roller to convey a sheet. In a direction perpendicular to a turning axis line direction of the hinge, the motor is disposed on one side of the turning unit. The communication unit is disposed on the other side and receives data from outside of the image reading device.

An image reading device includes a transparent member, a reading unit, and a sheet member provided on an upstream side, in a sheet conveyance direction, of the transparent member with respect to the reading position. The reading unit reads an image on a conveyed sheet via a reading position of the transparent member. The sheet member guides the conveyed sheet. The sheet member includes, in a sheet conveyance area in a sheet width direction orthogonal to the sheet conveyance direction, a first area where a leading edge of the conveyed sheet and the sheet member contact each other and a second area where the leading edge of the conveyed sheet and the sheet member do not contact each other.

An image reading apparatus includes an image reading part that reads an image formed on a recording medium, an accommodating unit that accommodates the image reading part and supports the image reading part in such a manner that the image reading part is capable of being displaced toward a side on which the recording medium is to be disposed, and an urging member that urges, in the accommodating unit, the image reading part toward the side on which the recording medium is to be disposed. The accommodating unit includes an urging-member-mounting portion in which the urging member is mounted, and at least one window is formed in the urging-member-mounting portion on a side opposite to a side on which the image reading part is disposed.

An image forming apparatus comprises an automatic document feeder (ADF); a light source configured to irradiate the document conveyed by the ADF with light; a glass member which can be switched to a first mode in which the light from the light source is transmitted and to a second mode in which the light from the light source is reflected; a signal processing circuit configured to include an image sensor for respectively receiving the reflected light of the document and the glass member, read an image of the document in the first mode and generate a signal of a white reference value based on the reflected light of the glass member in the second mode; and a shading correction circuit configured to correct, based on the signal of the white reference value, image data of the document read such that the brightness in the horizontal scanning direction is uniform.

A document reading apparatus includes an image reading unit, a document conveyance unit, and a hinge mechanism. The document conveyance unit includes a first abutment portion and a second abutment portion. The document conveyance unit includes a first abutment portion and a second abutment portion. The hinge mechanism includes a first member, a first shaft, a second member, a second shaft, a third member, a third shaft, a fourth member, a first urging portion, a second urging portion. The fourth member has a first pair of side plates supported by the third shaft. The second spring is disposed outside the first pair of side plates in an axial direction of the third shaft.

An image reading apparatus for reading image information from a sheet includes a cover unit, a sheet feeding member, a conveying guide, and a reading unit including a transparent member and a reading portion. The cover unit is rotatable between a closed position where the cover unit forms a sheet conveying passage in cooperation with the conveying guide and an open position where the sheet conveying passage is open. In a state in which the cover unit is positioned in the closed position, the transparent member is exposed to an outside of the image reading apparatus by rotation of the conveying guide and the reading unit.