Provided is an image processing apparatus for extracting embedded information from a printed document printed by an electrophotographic method, including: a first obtaining unit configured to obtain first image data by reading the printed document while applying light to the printed document; a second obtaining unit configured to obtain second image data by reading the printed document without applying light to the printed document; a determination unit configured to determine whether a high color density region of which density is higher than a predetermined value is present in the printed document; and a decision unit configured to decide which of the first image data and the second image data to set as image data to be used to extract the embedded information, according to the determination made by the determination unit.

An image reading apparatus executes a calibration processing of calibrating a reading unit when a medium detection sensor detects that a medium is present. The image reading apparatus executes the calibration processing each time a first time-period elapses in a state where the medium detection sensor detects that the medium is present after the calibration processing. When a start instruction of reading the medium is received, the image reading apparatus starts transport of the medium and causes the reading unit to read the medium on a basis of calibration information of a last calibration processing.

A duplex scan indicative scanner includes a sheet passage, a transporting mechanism, one single scanning module, a duplex indicator and a connection interface. The transporting mechanism transports a document past the sheet passage. The scanning module scans a first side of the document passing through the sheet passage. The connection interface is electrically connected to an electronic device, the duplex indicator, the transporting mechanism and the scanning module. After the electronic device has controlled, through the connection interface, the scanning module to scan the first side, the electronic device controls, through the connection interface, the duplex indicator to output a duplex indication message to guide a user to place the document or a second document, so that a second side of the document or the second document is scanned by the scanning module. A duplex scan indicative scanning apparatus and a duplex scan indicative scanning method are also provided.

A photoelectric conversion element includes a first pixel array including first light-receiving sections arranged in a direction and a second pixel array including second light-receiving sections arranged in the direction. Each of the first light-receiving sections includes a first pixel configured to receive at least light having a first wavelength inside a visible spectrum and a first pixel circuit configured to transmit a signal from the first pixel to a subsequent stage. Each of the second light-receiving sections includes a second pixel configured to receive at least light having a second wavelength outside the visible spectrum and a second pixel circuit configured to transmit a signal from the second pixel to the subsequent stage. The second pixel circuit is provided in a vicinity of the second pixel.

Provided is an image processing apparatus for extracting embedded information from a printed document printed by an electrophotographic method, including: a first obtaining unit configured to obtain first image data by reading the printed document while applying light to the printed document; a second obtaining unit configured to obtain second image data by reading the printed document without applying light to the printed document; a determination unit configured to determine whether a high color density region of which density is higher than a predetermined value is present in the printed document; and a decision unit configured to decide which of the first image data and the second image data to set as image data to be used to extract the embedded information, according to the determination made by the determination unit.

An image reading apparatus includes a transport unit which transports a document, and reading units which read an image of the document which is transported. It is assumed that an operation of reading an image when specific setting information is not input to a control device of the image reading apparatus is set to a first reading mode, and an operation of reading an image when specific setting information is input to the control device is set to a second reading mode. In this case, in the second reading mode, image data of an image with a resolution which is equal to that in the first reading mode is generated, while causing the reading units to read an image from a document which is transported by the transport device at a lower speed than that in the first reading mode.

A reading apparatus includes a reading device and processing circuitry. The reading device reads a recording medium. The processing circuitry outputs maintenance information based on read information read by the reading device.

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.

An image reading device including a reading transmission function of transmitting read data, generated by reading an original document, to a storage destination for storing the read data, the storage destination being included in an external device, the image reading device including a control unit configured to execute a communication test for determining whether communication with the storage destination is successfully performed, wherein the control unit includes a manual test mode for starting the communication test in response to an execution instruction of the communication test from a user and an automatic test mode for starting the communication test when a starting condition for starting the communication test is satisfied.

Embodiments of the present disclosure provide an image processing apparatus comprising: a reader that reads an image from a document; a projection unit that projects an image; a printer that prints an image onto a sheet; an operation unit that accepts a first instruction for the projection unit to project the image read by the reader and a second instruction for the printer to print the image projected by the projection unit; and a control unit, wherein in a case where the first instruction is accepted by the operation unit, the control unit causes the projection unit to project the image read by the reader, and in a case where the second instruction is accepted by the operation unit, the control unit causes the printer to print the image being projected by the projection unit.