An image scanning device includes a placement-area image data capturing unit that captures placement-area image data corresponding to an area where documents are placed on a platen, a document image data capturing unit that captures pieces of document image data, each of which corresponds to one of the documents, and acquires positions of the pieces of document image data, in accordance with the placement-area image data captured by the placement-area image data capturing unit, a placement order acquiring unit that acquires an order in which the documents, each of which corresponds to one of the pieces of document image data, have been placed in accordance with at least the positions of the pieces of document image data, each of which corresponds to one of the documents, and a sequencing unit that assigns to the pieces of document image data the order acquired by the placement order acquiring unit.

An image scanning device includes a platen, an image scanning unit that scans at a single time documents placed on the platen and generates pieces of image data, and an image data processing unit that performs processing of the pieces of image data. When the image scanning unit generates pieces of first image data by scanning first surfaces of the documents, each of which is placed in one of predetermined areas on the platen, and generates pieces of second image data by scanning surfaces opposite to the first surfaces of the documents, each of which is turned over and placed again in the one of the predetermined areas, the image data processing unit associates one of the pieces of the first image data with a corresponding one of the pieces of the second image data for each of the predetermined areas, as image data of the front and back surfaces.

An image captured by a camera can be processed by a scanning application to identify one or more regions within the image that are suitable for scanning. One or more of these regions can be selected for scanning automatically based on user-input such as a fingertip touch to a particular portion of the display screen. Users may also select multiple regions and submit multiple quadrangular regions for scanning to PDF from a single image.

An image sensor in an image reading device reads a document based on light from a lamp while a carriage is moving from one to the other side. An image data generation circuit generates read image data based on an analog image signal fed out from the image sensor. A controller senses the edge of the document in the read image data generated while the carriage is moving. On recognizing once or a plurality of times, while the carriage is moving, based on the result of sensing of the edge, that the reading of one placed sheet of the document is completed, the controller makes a moving mechanism stop the movement of the carriage and turns off the lamp.

An image scanning device includes a placement-area image data capturing unit that captures placement-area image data corresponding to an area where documents are placed on a platen, a document image data capturing unit that captures pieces of document image data, each of which corresponds to one of the documents, and acquires positions of the pieces of document image data, in accordance with the placement-area image data captured by the placement-area image data capturing unit, a placement order acquiring unit that acquires an order in which the documents, each of which corresponds to one of the pieces of document image data, have been placed in accordance with at least the positions of the pieces of document image data, each of which corresponds to one of the documents, and a sequencing unit that assigns to the pieces of document image data the order acquired by the placement order acquiring unit.

An image forming apparatus includes a display section, a display controller, a reading section, an image detector, and a determining section. The display controller controls the display section. The reading section reads multiple documents placed on a specific surface of the image forming apparatus in a batch and generates whole image data indicating a whole image as a result of reading. The image detector detects document images corresponding to the documents based on the whole image data. The determining section determines whether or not batch reading of the documents has succeeded based on a result of detection of the document images. The display controller controls the display section such that the display section displays the document images in a first display format when the determining section determines that the reading has not succeeded, or in a second display format when the determining section determines that the reading has succeeded.

An image reader includes a document reading unit, and a control unit that functions as an individual image cutting section, character string detection section, mismatch detection section, judgment section, and correction section. The individual image cutting section cuts out individual images from image data obtained through reading by the document reading unit. The character string detection section detects character strings present on the individual images. The mismatch detection section detects, for the character strings detected by the character string detection section, a mismatching portion by making comparison between the individual images with considering character strings having contents identical or similar to each other as same information. The judgment section judges for the mismatching portions whether a ratio of majority characters reaches a predefined ratio. Upon judging that the ratio of the majority characters has reached the predefined ratio, the correction section replaces a minority character with the majority character.

An image scanning device includes a platen, an image scanning unit that scans at a single time documents placed on the platen and generates pieces of image data, and an image data processing unit that performs processing of the pieces of image data. When the image scanning unit generates pieces of first image data by scanning first surfaces of the documents, each of which is placed in one of predetermined areas on the platen, and generates pieces of second image data by scanning surfaces opposite to the first surfaces of the documents, each of which is turned over and placed again in the one of the predetermined areas, the image data processing unit associates one of the pieces of the first image data with a corresponding one of the pieces of the second image data for each of the predetermined areas, as image data of the front and back surfaces.

An image scanning device includes a placement-area image data capturing unit that captures placement-area image data corresponding to an area where documents are placed on a platen, a document image data capturing unit that captures pieces of document image data, each of which corresponds to one of the documents, and acquires positions of the pieces of document image data, in accordance with the placement-area image data captured by the placement-area image data capturing unit, a placement order acquiring unit that acquires an order in which the documents, each of which corresponds to one of the pieces of document image data, have been placed in accordance with at least the positions of the pieces of document image data, each of which corresponds to one of the documents, and a sequencing unit that assigns to the pieces of document image data the order acquired by the placement order acquiring unit.

An image scanning device includes a placement-area image data capturing unit that captures placement-area image data corresponding to an area where documents are placed on a platen, a document image data capturing unit that captures pieces of document image data, each of which corresponds to one of the documents, and acquires positions of the pieces of document image data, in accordance with the placement-area image data captured by the placement-area image data capturing unit, a placement order acquiring unit that acquires an order in which the documents, each of which corresponds to one of the pieces of document image data, have been placed in accordance with at least the positions of the pieces of document image data, each of which corresponds to one of the documents, and a sequencing unit that assigns to the pieces of document image data the order acquired by the placement order acquiring unit.