An image reading apparatus includes a guide member whose part in sliding-contact with a light-emitting portion is formed of synthetic resin. A control portion is configured to execute a control of changing a turn position among a plurality of positions including a first position and a second position downstream in an image reading direction of the first position in case that the light-emitting portion irradiates the first size sheet with light to read an image thereof.

An image reading apparatus includes a tray, first sensors configured to acquire information related to a maximum size of sheets placed on the tray, a scanner configured to generate first image data for each of the sheets conveyed from the tray based on the maximum size, a sheet conveyor configured to convey the sheets placed on the tray toward the scanner, second sensors configured to acquire information related to an actual size of each of the sheets conveyed by the sheet conveyor, and a controller. The controller converts for each of the sheets having an actual size that is different from the maximum size, the first image data stored in a first memory region into second image data based on the maximum size and the actual size of the sheet, and stores the second image data in a second memory region which is different from the first memory region.

An image reading apparatus capable of recognizing edge portions of an original image with precision is provided. The image reading apparatus uses an image reading unit to scan an original being conveyed and read an image of the original. The image reading apparatus includes an edge information obtaining unit and an edge determining unit. The edge information obtaining unit detects an image of an edge portion of the original image and obtains, for each point in a main scanning direction, edge information, which indicates whether or not an edge portion image is detected at the point in a sub-scanning direction. The edge determining unit conducts detection from at least one of two directions of the main scanning direction to detect a point where a given number of successive edge portion images are detected, and obtains an edge portion based on the detected point.

A scanner includes a transport mechanism that continuously transports a plurality of documents, a sensor, a control unit that performs correction of a read image which the sensor reads by using a correction value, a calculation unit that calculates the correction value based on a result from which the sensor reads a reference region between the documents, and a storage unit that sequentially stores the correction value in any of a plurality of storage regions, in which the control unit switches the storage region where the correction value used for the correction is read out to the storage region where the calculated correction value is stored, if storing of the calculated correction value is completed.

An image forming system includes an image reading device which reads an image of a sheet conveyed along a conveyance path. The image reading device includes a reading sensor and a moving mechanism. The reading sensor optically reads the image. The moving mechanism moves the reading sensor to a reading position closer to the conveyance path and readable the image and a non-reading position separated from the conveyance path farther than the reading position.

A scanner recognizes types of images and components of those image types. Custom routing rules are applied against the types and components and the scanner utilizes multiple network connections to route the images and components to destinations within a Point-Of-Sale (POS) terminal and external to the POS terminal over a Wide-Area Network (WAN) and/or a Local-Area Network (LAN).

According to an embodiment, a detection apparatus for detecting a decoloration ink image includes an image reading unit, a decoloration unit, and a controller. The controller acquires image data using the image reading unit before decoloration that is the image data on the sheet before decoloration processing is executed by the decoloration unit. In addition, the controller determines whether or not there is a difference between the image data to be decolored and the decolored image data, thereby determining whether or not the decoloration ink is used in the sheet.

Provided is a reading kit including a reading unit configured to read an image of an original being conveyed in a predetermined direction at a predetermined reading position, and a white reference sheet comprising a white reference portion to be read by the reading unit and an engaged portion to be engaged with a positioning member. The white reference portion being arranged at the predetermined reading position by engaging the engaged portion with the positioning member.

An image output apparatus includes a controller that controls display of a first setting screen including setting items of a system to be used for a setting of operation of the image output apparatus and a second setting screen including setting items of a job to be used in a setting of operation in job execution, and an image outputter that outputs an image by executing a job based on the setting of the operation in the job execution. The controller disables a selection of the setting items of the job that uses a specific function on the second setting screen when use of the specific function is prohibited on the first setting screen.

An image forming apparatus includes a reading unit, an image forming unit, and a controller. The reading unit is configured to acquire image data by reading an image on a first sheet. The image forming unit is configure to form an image from the image data on a second sheet using a first color material and a second color material. The controller is configured to perform text recognition on the image data, cause the image forming unit to form text from the image data on the second sheet using the second color material, and cause the image forming unit to form portions of the image data other than the text on the second sheet using the first color material.