An image reading device includes: an area sensor in which color filters of three colors of R, G, and B are arranged in a Bayer array and a light receiving amount is detected by a light receiving element for each color filter; and a hardware processor that: reads a document by using the light receiving elements in a first group in the area sensor, reads the document by using the light receiving elements in a second group in the area sensor, at a region shifted by ½ pixels in a sub-scanning direction from a reading region of the light receiving elements in the first group, and interpolates R-color read data and B-color read data using G-color read data and synthesizes image data having a resolution twice the resolution of the area sensor.

An image reading apparatus includes a light emitter to irradiate a document with light, a first light guide to guide the light reflected by the document, an output device to output a readout signal obtained from the light reflected and guided by the first light guide, a base to correct shading in the readout signal, and circuitry to output a scanned image in which the shading of the document in the readout signal is corrected, based on correction data obtained from the readout signal of the base output from the output device, control a timing at which the light emitter emits the light and a timing at which the output device outputs a signal, and heat the first light guide with the light emitted from the light emitter before the output device outputs the readout signal of each of the document and the base.

Before reading of a document, an image processing control portion makes an image reading portion perform pre-scanning operation, which is scanning operation performed with a document cover open without a document placed on a placement surface, and checks the incident condition of external disturbance light on the image sensor. If it is judged that the incident condition is a predetermined state, the image processing control portion makes a control device perform a countermeasure process to make the room dimmer than it currently is.

An information processing apparatus includes a processor configured to acquire, from a read image, a predetermined item, and a value corresponding to the item, the read image being obtained by reading a document and being subjected, prior to acquisition of the item and the value, to preprocessing and character recognition. Further, the processor is configured to, in response to not successfully acquiring at least one of the item and the value, change a setting on the preprocessing or a setting on the character recognition in accordance with the acquisition or non-acquisition state of the item and the value, and then perform the preprocessing or the character recognition. In response to not successfully acquiring at least one of the item and the value, the processor is further configured to identify where the item and the value are located.

A reading apparatus includes a reading part that reads information of a document, a housing that accommodates the reading part, a document feeding port through which the document is fed, a cover member disposed on the housing to be displaced to an open position at which the document feeding port is open and a closed position at which the document feeding port is closed, a drive source that displaces the cover member to the open position and the closed position, a position detection mechanism that detects a position of the cover member, and a control part, wherein the control part is configured to displace the cover member to the closed position by the drive source when a time during which reading by the reading part is not performed exceeds a predetermined time, and the position detection mechanism detects that the cover member is at the open position.

An image forming system includes an image former; a reader that executes reading a document or a sheet; a post processor that applies post processing to the document or the sheet; and a controller. The controller controls the image formation, the reading and the post processing, judges the requested degree of importance of reading for a reading target on the document or the sheet, judges existence or nonexistence of an overlap between an execution timing of the reading and a timing of generation of vibration at the post processing, judges the necessity of a countermeasure to prevent the overlap from occurring with reference to the degree of importance of reading and the existence or nonexistence of the overlap, and controls the execution timing of the reading and the post processing to prevent the overlap from occurring when the controller determines that the countermeasure is necessary.

The location of a printing device is determined. Environmental conditions in which the printing device operated when printing a print job are determined based on the determined location. An environmental adjustment factor for the printing device is determined based on the determined environmental conditions. A predicted print material usage of the printing device in printing the print job is adjusted based on the determined environmental adjustment factor.

An information processing apparatus includes a processor configured to acquire, from a read image, a predetermined item, and a value corresponding to the item, the read image being obtained by reading a document and being subjected, prior to acquisition of the item and the value, to preprocessing and character recognition. Further, the processor is configured to, in response to not successfully acquiring at least one of the item and the value, change a setting on the preprocessing or a setting on the character recognition in accordance with the acquisition or non-acquisition state of the item and the value, and then perform the preprocessing or the character recognition.

An image processing apparatus includes a selection unit, a determination unit, and a control unit to set candidates to be selected by the selection unit. If determination unit determines that there is not a set of a size and an orientation of a document of which the orientation cannot be correctly determined, the control unit sets, as selection unit selection candidates, candidates of sets of sizes and orientations of a plurality of documents. If the determination unit determines that there is a set of a size and an orientation of a document of which the orientation cannot be correctly determined, the control unit sets, as selection unit selection candidates, candidates obtained by excluding the set of the size and the orientation of the document of which the orientation cannot be correctly determined from the candidates of the sets of the sizes and the orientations of the plurality of documents.

Provided is an image-forming device that can execute operations that do not use a document-reading unit even when abnormality in a light source is detected in the initial operation at startup. The image-forming device includes a document-reading unit, and together with being able to execute image-forming operations that use the document-reading unit, is able to execute image-forming operations that do not use the document-reading unit. The image-forming device includes a light-source-abnormality-detection unit that executes a light-source-abnormality-detection operation, and when an abnormality in the light source is detected by the light-source-abnormality-detection operation that is executed at startup, stores the startup signal level that is outputted in a light-source-abnormality-storage unit as light-source-abnormality information. The image-forming device performs normal startup in which all image-forming operations can be executed regardless of the detection results of the light-source-abnormality-detection operation.