An image forming apparatus according to the present disclosure includes an image forming unit configured to form an image based on an image forming condition; a reading unit configured to read a test image on a sheet; a controller configured to: control the image forming unit to form the test image; obtain read data related to the test image output from the reading unit is formed; and update the image forming condition based on the read data. The controller operates in a first mode and a second mode, the first mode is a mode in which, the controller controls the image forming unit to form the image for the second sheet after the image forming condition is updated based on the reading data related to the test image.

The present disclosure helps prevent scan image data obtained by bulk reading of a plurality of documents from being divided at a position unintended by a user. An apparatus according to the present disclosure can display, on a screen, a list of a plurality of page images obtained by reading a plurality of documents in bulk, display, on the screen where the list of the plurality of page images is displayed, one or more page images similar to a page image specified by a user as one or more sectioning position candidates in a manner discriminable from other page images of the plurality of page images, and correct the one or more sectioning position candidates based on a correction instruction from the user.

An information processing apparatus includes a display and circuitry. The circuitry controls the display to display a first display field for displaying a first image of document data, a second display field for displaying a second image based on a first data generated by an image reading device reading a print sample, a third display field for displaying a third image based on a second data generated by the image reading device reading a printed matter printed out by an image forming apparatus based on the document data, and a fourth display field for displaying a fourth image after execution of color matching for color of the third image to be matched with color of the second image based on the document data.

Provided is an image forming apparatus including a printer controller configured to form an image on a sheet, a storage unit configured to store a plurality of adjustment conditions for adjusting a position on the sheet at which the image is to be formed, and a CPU. The CPU selects one of the plurality of adjustment conditions, adjusts the position at which the image is to be formed based on the selected adjustment condition, and causes the printer controller to form the image on the sheet.

The image forming apparatus includes a sheet conveyance part, an image forming part, and a sheet reading unit. The sheet reading unit includes a line sensor. The line sensor includes split line sensors. The line sensor reads a conveyed sheet. The line sensor includes a plurality of split line sensors. The split line sensors are placed at non-stretching positions, respectively. Each non-stretching position is such a position that as in the main scanning direction, a main-scanning-direction distance from a gap between one split line sensor and another split line sensor to an ideal edge position of every usable regular size exceeds a permissible value.

There are provided a line sensor (110) including two first sensor pixel rows (111a, 111b) and a second sensor pixel row (112a); an image obtaining unit (140) to obtain, from electrical signals obtained by scanning an original in a sub-scanning direction with the two first sensor pixel rows (111a, 111b), two first read image data items, and obtain, from electrical signals obtained by scanning the original in the sub-scanning direction with the second sensor pixel row (112a), a second read image data item; and an image processor (150) to incorporate one or more pixel data items of one or more pixels included in an interval between the two first sensor pixel rows (111a, 111b) out of the second read image data item into the two first read image data items, thereby generating a line image data item in which the one or more pixels in the interval are not vacant.

An image reading method in the present invention includes: obtaining a pickup image by performing image pickup of an object mounted on a mounting surface with an imaging unit; and extracting an image of the object from the pickup image, based on a brightness difference between the image of the object and an image of a shadow of the object in the pickup image.

An image forming apparatus includes a light transmitting member provided at a reading position set in a conveyance path and an opposite plate opposed thereto, and a document being conveyed passes between this opposite plate and the light transmitting member. On an opposing surface of the opposite plate to the light transmitting member, a low brightness area, for example, like a gray color and a high brightness area, for example, like a white color, having a higher brightness than the low brightness area are formed adjacent to each other in a conveyance direction of the document. Then, an image reader sets a home position of a scanning unit to a first position or a second position corresponding to either the low brightness area or the high brightness area to read the document passing through the reading position.

A reading device includes a reading unit configured to read a document, and a control unit configured to acquire image data including a document region and a background region from the reading unit. The control unit acquires document information about a document, and sets, based on the document information, a background range indicating a range of a luminance value regarded as the background region.

Provided is an image reading system that divides, with respect to image data obtained by performing a double sided reading in a state where a booklet is opened, cover sheet image data into two parts corresponding to a pair of cover sheets to arrange the two parts at a front and an end, respectively, and arranges main text image data between the front and the end, and then generates an image file from each of the arranged image data.