A medium discharge device includes a discharge roller pair that is provided with a discharge driving roller and a discharge driven roller which drivably rotates in contact with the discharge driving roller, and a medium receiving tray which receives the medium that is fed and discharged by the discharge roller pair, in which the medium receiving tray includes a guide member which guides such that a tip end of the medium which is discharged from the discharge roller pair enters the medium mounting surface at a predetermined angle, and the guide member is provided to be elastically displaceable in an advancing and retreating direction with respect to the medium mounting surface of the medium receiving tray and is displaced in a direction coming close to the medium mounting surface according to raising of a pressing load due to the medium that is discharged to the medium receiving tray.

An imaging device includes a light source unit located so as to be inclined with respect to a medium conveying surface or a medium placing surface. The light source unit includes a light emitting element, a light guide provided with the light emitting element on a first end surface side, to guide light emitted from the light emitting element in a predetermined direction, and emit the light toward the medium from an emitting surface extending in the predetermined direction, and a reflector located around the light guide other than the emitting surface. The light guide includes a light diffusing surface on an opposite side to the emitting surface. The reflector does not cover a second end surface opposite to the first end surface of the light guide. A medium side surface of the reflector is located so as to protrude from the second end surface of the light guide.

An image reading apparatus includes a first roller pair forming a first nip portion, a second roller pair forming second nip portions, an image information reading unit, and a sheet detecting unit. The second roller pair includes a recessed portion formed between the second nip portions of the second roller pair with respect to a rotational axis direction. The sheet detecting unit is provided so that at least a part thereof enters the recessed portion. The first roller pair forms the first nip portion so as to nip a sheet in a region overlapping with the recessed portion with respect to the rotational axis direction and to deliver the sheet, nipped in the first nip portion, to the second nip portions.

An imaging device includes a light source unit located so as to be inclined with respect to a medium conveying surface or a medium placing surface. The light source unit includes a light emitting element, a light guide provided with the light emitting element on a first end surface side, to guide light emitted from the light emitting element in a predetermined direction, and emit the light toward the medium from an emitting surface extending in the predetermined direction, and a reflector located around the light guide other than the emitting surface. The light guide includes a light diffusing surface on an opposite side to the emitting surface. The reflector does not cover a second end surface opposite to the first end surface of the light guide. A medium side surface of the reflector is located so as to protrude from the second end surface of the light guide.

According to one embodiment, an image forming apparatus includes a conveyance mechanism, a scanner, a buffer memory, a passage sensor, and a controller. The conveyance mechanism conveys a document along a conveyance path. The scanner reads an image on the document at a reading position along the conveyance path and generates image signals corresponding to the image that is read. The buffer memory stores image data corresponding to the image signals. The passage sensor is on the conveyance path upstream of the reading position. The controller determines whether to output the image data from the buffer memory after a sheet passage prediction time elapses based on the length of time required during a normal operation for the trailing edge of the document to reach the reading position.

A recording material transporting device includes a transport belt having an endless shape and having an inner peripheral surface and an outer peripheral surface having a friction coefficient smaller than a friction coefficient of the inner peripheral surface. The transport belt transports a recording material by using the outer peripheral surface toward a reader that reads an image. The recording material transporting device further includes a driving roller that rotates while being in contact with the inner peripheral surface of the transport belt and that rotatably drives the transport belt.

One motor is shared for carriage movement and document sheet conveyance. An abutting member stops the carriage, that has moved from a second position located below a first end portion of a platen glass, at a first position located below a contact glass. The carriage supports the motor and first and second main body gears. The main body gears interlock with the motor. A cover input gear meshes with the first main body gear when the carriage is located between the first position and a relay region. A main rack gear meshes with the second main body gear when the carriage is located in a region extending from the relay region to a third position located below a second end portion of the platen glass. A load torque applied to the motor is larger when the carriage is fixed than when the cover input gear is fixed.

Example media scanning assemblies are disclosed. In an example, the media scanning assembly includes a media feeder assembly including an output tray, an input tray disposed vertically lower than the output tray, and a first scanning device. In addition, the media scanning assembly includes a flatbed scanning assembly coupled to the media scanning assembly. The flatbed scanning assembly includes a transparent platen and a second scanning device to move relative to the platen. The media feeder assembly includes a media path extending from the input tray, across a portion of the platen, to the output tray, and the media feeder assembly is to advance media along the media path from the input tray to the output tray so that the first scanning device is to scan a first side of the media and the second scanning device is to scan a second side of the media through the platen.

An image reading apparatus includes an image sensor, a document feeder, and a processor. The document feeder includes a first driving device, a second driving device, a third driving device, a first sensor, and a second sensor. The first driving device includes a pick-up member to move documents from a tray to a document conveying path using a driving force through a first clutch. The second driving device is to move the tray with the documents to a side of the pick-up member using a driving force through a second clutch. The third driving device to move the documents along the document conveying path onto the image sensor using the driving force of the motor. The first and second sensors detect the documents on the document conveying path. The processor controls an operation of the first clutch based on the signals of the first and second sensors.

A conveying path for a document (D) includes a first conveying path (R1) that turns back midway, and a second conveying path (R2) that does not turn back midway. When the first conveying path (R1) is used, a first side is read and the document (D) is discharged with the first side facing downward. When the second conveying path (R2) is used, a second side is read and the document (D) is discharged with the second side facing downward. When the second conveying path (R2) is used, a warning message (MS1) is displayed.