A scanner assembly (100) may include a housing (102) having abase (104) forming a cavity with an open top. Further, the housing (102) may include a platen (106) having a top surface (108) and a bottom surface (110). The bottom surface (110) may be attached to the base (104) around a periphery of the cavity. Furthermore, the housing (102) may include a bezel (112) adhered to the top surface of the platen (106) to cover an edge region of the top surface (108). The bezel (112) may include a bottom surface (114) having an inclined notch (116). Furthermore, the scanner assembly (100) may include a scanner module (118) movably disposed in the housing (102) below the platen (106). The scanner module (118) may be in an optical communication with the inclined notch (116) to detect a home position.

A captured image is obtained in which an adapter tray is captured which is fitted in a predetermined first area in a conveyance tray conveyed by a printing apparatus and has a second area fitted with a printing medium on which printing is performed by the printing apparatus. A shape of the second area is specified based on the captured image and information about the predetermined first area. Further, an image based on the specified shape of the second area is output.

A controller of an image reading apparatus is configured to cause the reading device to read an image on an original with moving a reading location from a first position to a second position, after reading the image on the original with moving the reading location from a third position to the first position, the third position being a position between the first position and the second position and spaced from the first position by a particular distance and determining a width of the original in the main scanning direction. The controller is configured to further move the reading location from the second position to the first position, and detect an instruction to continue reading a subsequent original during a period before the reading location reaches the third position. When the instruction is detected, the controller stops moving the reading location when it reaches the third position.

An image processing apparatus comprises a memory configured to store a scanned image obtained by scanning a document placement area, and a processor configured to detect an image of each original document from the scanned image, specify a placement state of each original document, and generate data in a data format corresponding to the placement state of each original document in the image.

An image processing apparatus comprises a memory configured to store a scanned image obtained by scanning a document placement area, and a processor configured to detect an image of each original document from the scanned image, specify a placement state of each original document, and generate data in a data format corresponding to the placement state of each original document in the image.

A document size detection device includes: a light source that irradiates a document placed on placing means with scanning light via the placing means; a reading unit that receives reflection light from the document via the placing means to acquire image data of the document; and circuitry to set an illumination depth of the scanning light at a size detection time when the size is detected, shallower than an illumination depth of the scanning light at an image reading time when an image of the document is read, and detects, at the size detection time, the size based on a difference between first image data acquired in a state in which the scanning light is switched off and second image data acquired in a state in which the scanning light is switched on.

A document scanning apparatus reading an image of a document includes a signal output unit configured to output a pulse signal at predetermined intervals, a sensor configured to detect a document set on a platen glass, the sensor having a light emitting unit configured to emit light in response to a pulse signal output from the signal output unit and a light receiving unit configured to output a detection signal in accordance with light output from the light emitting unit, and a control unit configured to receive the detection signal output from the light receiving unit. In this case, the signal output unit outputs the pulse signal at a different time point from the predetermined intervals in response to a request from an external apparatus.

An image reading apparatus includes an image reading unit, a document pressing unit, a first position detection unit, a second position detection unit, and a controller. The image reading unit reads an image of a document. The document pressing unit presses the document against a document placement component. The first position detection unit detects a first closed position at which the document pressing unit is not in contact with the document placement component. The second position detection unit detects a second closed position that is closer to the document placement component than the first closed position is. The controller performs first width detection on the document and further performs second width detection. The first width detection is performed in accordance with detection performed by the first position detection unit on a closing operation of the document pressing unit. The second width detection is performed after elapse of a predetermined time in accordance with detection performed by the second position detection unit on the closing operation of the document pressing unit. If the controller receives an image reading instruction before the elapse of the predetermined time, the controller performs the second width detection without waiting for the elapse of the predetermined time and starts an image reading process.

An image reading apparatus includes an image reading unit, a document pressing unit, a first position detection unit, a second position detection unit, and a controller. The image reading unit reads an image of a document. The document pressing unit presses the document against a document placement component. The first position detection unit detects a first closed position at which the document pressing unit is not in contact with the document placement component. The second position detection unit detects a second closed position that is closer to the document placement component than the first closed position is. The controller performs first width detection on the document and further performs second width detection. The first width detection is performed in accordance with detection performed by the first position detection unit on a closing operation of the document pressing unit. The second width detection is performed after elapse of a predetermined time in accordance with detection performed by the second position detection unit on the closing operation of the document pressing unit. If the controller receives an image reading instruction before the elapse of the predetermined time, the controller performs the second width detection without waiting for the elapse of the predetermined time and starts an image reading process.

There is provided an image reading apparatus including a first reading sensor provided in a first reading unit and configured to read one surface of the sheet, a second reading sensor provided in a second reading unit provided to face the first reading sensor and configured to read an image on the other surface of the sheet, a first background portion serving as a reading background of the first reading sensor, a second background portion serving as a reading background of the second reading sensor, and a moving portion configured to integrally move the first reading sensor and the second background portion, wherein the first reading unit includes a sensor case in which the first reading sensor is provided, and the sensor case is fixed to the apparatus main body.