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.

A recording apparatus having a support portion that supports a roll having a wound sheet, a drive portion, a conveying passage, a conveyer, and a recording portion. The drive portion rotates the supported roll in a first direction to feed the sheet from the roll, and rotates the roll in a second direction to rewind the sheet onto the roll. The conveying passage guides the sheet fed from the roll in a feeding direction and has first and second positions upstream of the conveyer in the feeding direction. The drive portion performs, before the sheet reaches the conveyer, a reciprocating operation in which the drive portion rotates the roll in the second direction in response to a leading end of the sheet reaching the first position and rotates the roll in the first direction in response to the leading end which reached the first position reaching the second position.

An image reader used as a back surface reading unit includes LEDs, a first mirror, a second mirror, a third mirror, a lens, and a CCD inside a housing. The first mirror, which first reflects light reflected from the document, is positioned farther away from the document reading position than other reflecting mirrors (i.e. the second mirror and the third mirror) in an optical axis direction of the optical path connecting the document reading position and the first mirror.

An image reading apparatus includes a document tray on which a document is stacked; a conveyance unit configured to convey the document stacked on the document tray; a reader configured to read the image of the document conveyed by the conveyance unit using a sensor. The sensor includes a first light receiving element row having a plurality of light receiving elements, which receives light of a first color, arranged in a main scanning direction; and a second light receiving element row having a plurality of light receiving elements, which receives light of a second color, arranged in the main scanning direction, wherein the first light receiving element row and the second light receiving element row are arranged in a sub-scanning direction orthogonal to the main scanning direction. The image reading apparatus further includes a setting unit and a determination unit.

An image reading apparatus includes a conveyance unit configured to convey an original; a reading unit comprising a reading sensor, the reading sensor having a light receiving element to receive light of a first color and a light receiving element to receive light of a second color that is different from the first color, wherein the reading unit is configured to read an image of the original conveyed by the conveyance unit by using the reading sensor to generate image data which represents a reading result of the reading unit; at least one processor configured to: determine a first abnormal position that is a position in a first direction of an abnormal pixel of the first color in an image represented by the image data.

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.

A transport apparatus includes: an apparatus body; an opening and closing unit attached to the apparatus body so as to be openable and closable between a closed position where an upper surface of the apparatus body is covered and an open position where the upper surface of the apparatus body is exposed, the opening and closing unit including, inside the opening and closing unit, a transport path along which a target material is transported; a transport path member that has a transport path surface constituting a part of the transport path, is rotatably supported by the opening and closing unit at one end portion side of the transport path member, and is configured such that the transport path is opened when the other end portion side of the transport path member moves downward from the opening and closing unit; and a hook portion that is rotatably attached to the other end portion side of the transport path member, is configured to hold the transport path member in a closed state of the transport path, in a hooked state in which the hook portion is hooked on a hooked portion of the opening and closing unit, based on a force applied toward a first rotation direction along which the hook portion is hooked to the hooked portion, and is configured to rotate in a second rotation direction opposite to the first rotation direction by coming into contact with the hooked portion while the transport path member is pushed upward by the upper surface of the apparatus body when the opening and closing unit is moved from the open position to the closed position in a non-hooked state in which the hook portion is not hooked on the hooked portion.

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.

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.

An image forming apparatus includes a line sensor capable of reading a sheet being conveyed. A signal processing circuit generates, based on respective analog picture signals of pixels and in order of sequence of the pixels, detection signals each indicating whether or not a reflecting object has been read. A first counting circuit measures a duration time which is a time during which the detection signals maintain a level indicating that the reflecting object has been read. When the duration time reaches or exceeds a first specified time, the first counting circuit changes a level of a first detection result signal to a level indicating necessity of cleaning. A unit control circuit determines, based on the level of the first detection result signal, whether or not cleaning is necessary.