An information processing apparatus includes a first integrated circuit including a first controller that processes data acquired from a device and that controls an operation of the device; a second integrated circuit including a second controller with a higher processing speed than a processing speed of the first controller; and a third integrated circuit including a first connection unit connectable to the device. The third integrated circuit includes a second connection unit connectable to the first integrated circuit, a third connection unit connectable to the second integrated circuit, and a setting unit that, when the device is connected to the first connection unit, sets an integrated circuit to be connected, in accordance with a communication speed of the connected device.

A control unit is capable of selectively executing a first mode and a second mode, the first mode being a mode in which a plurality of sheets having different sizes including a non-standard size are fed by the feeding unit, and the second mode being a mode in which a plurality of sheets having different sizes including only standard sizes are fed by the feeding unit. If the detection unit detects a sheet in a state where the supporting portion is located at the second position and the first mode is selected, the control unit waits for an instruction to start sheet feeding without causing the lifting unit to lift the supporting portion to the first position, and causes the lifting unit to lift the supporting portion to the first position in response to the instruction to start sheet feeding.

Provided are an image forming apparatus and an inspection method of an image reading section capable of precisely detecting dirt that adheres to a dustproof glass. The image forming apparatus is provided with an image forming section, an image reading section, and a controlling section. The image reading section has a light source, a sensor, and a dustproof glass. At the time of the compensation processing operation of the image reading section, the controlling section detects dirt on the dustproof glass on the basis of a detection value acquired by the sensor when light is emitted from the light source onto a reflective member for compensation that specularly reflects the light.

In a sheet conveyance apparatus a control unit controls lifting and lowering of a sheet supporting portion by a lifting unit and executes a mixed feeding in one of a plurality of modes including a first mode and a second mode. The mixed feeding is an operation in which a plurality of sheets having different lengths in a width direction orthogonal to a feed direction of a sheet feeding unit are fed by the feeding unit, wherein in the first mode, the control unit causes the lifting unit to move the supporting portion from the second position to the first position based on an instruction to start sheet feeding, and in the second mode, the control unit causes the lifting unit to move the supporting portion from the second position to the first position based on a detection of a sheet by the detection unit.

An apparatus body of an image reading apparatus is turnably provided to a body supporting portion. The apparatus body is turned so as to be switchable between a first posture and a second posture that forms an angle between a reading transportation path and a mounting surface being smaller than the corresponding angle formed in the first posture. A transportation path switching unit couples the reading transportation path to a reverse transportation path when the apparatus body takes the first posture, and couples the reading transportation path to a non-reverse transportation path when the apparatus body takes the second posture.

An image reading apparatus includes a first unit, a second unit, a motor, and a power transmission mechanism. The second unit is configured to be rotated in relation to the first unit and configured to be closed onto, and opened away from, the first unit by being rotated. The motor is provided in the first unit. The power transmission mechanism transmits motive power of the motor from the first unit to the second unit. The power transmission mechanism includes a first gear and a second gear. The first gear has the same axial center of rotation as that of the second unit. The second gear is provided in the second unit and is in mesh with the first gear.

Provided is an image reading apparatus including an apparatus main body including a reading portion that reads an image of a document being transported, and a main body supporting portion rotatably supporting the apparatus main body such that the apparatus main body is configured to take a plurality of postures, in which the apparatus main body includes at least one coupling portion to which a coupling target is coupled, and the coupling portion is provided on a side of the apparatus main body. The side intersects a rotation shaft line direction of the apparatus main body.

An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. The storage portion stores an evaluation chart. The evaluation chart includes a first evaluation pattern and a second evaluation pattern. The first evaluation pattern includes a first patch row. The first patch row is formed by arranging a plurality of first evaluation patches. The first evaluation patch includes a first dot row, a second dot row and an auxiliary dot row. The second evaluation pattern includes a second patch row. The second patch row is formed by arranging a plurality of second evaluation patches.

A scanner includes an apparatus main body, a stand, and a switching mechanism. The apparatus main body includes a transport unit that transports a document along a transport path, and a reading unit that reads an image of the document. The stand supports the apparatus main body. The switching mechanism switches the posture of the apparatus main body with respect to the stand so that the transport path extends along an intersecting direction intersecting an installation surface. The switching mechanism includes a switching motor that imparts a driving force to the apparatus main body when switching the posture. The switching motor is located inside the apparatus main body on the lower side of the transport path in the vertical direction.

In accordance with an embodiment, an image reading apparatus sets a scan speed corresponding to an operating speed input by the operation panel. The image reading apparatus executes a scan job at the set scan speed. In addition, the image reading apparatus updates a scan counter in accordance with the number of pages of an image read at the set scan speed.