A method is provided to exert unbinding control on an image forming device. The method includes: obtaining an unbinding instruction; sending a first unbinding request to the server according to the unbinding instruction, where the unbinding request includes identification information of the image forming device; obtaining a reply message from the server in response to the unbinding request; and in response to a determination that the reply message indicates unbinding failure, automatically sending a second unbinding request to the server.

Embodiments of the present disclosure provide an image calibration method, an image forming apparatus, and a storage medium. The method includes outputting a calibration image in response to a calibration instruction, where the calibration image includes a calibration pattern and a calibration mark; according to the calibration mark of the calibration image, determining whether a calibration event corresponding to the calibration image matches a calibration event corresponding to a current calibration operation, or determining whether a calibration event type corresponding to the calibration image matches a calibration event type corresponding to a current calibration operation; and performing image calibration according to the calibration pattern in the calibration image if the calibration event corresponding to the calibration image matches the calibration event corresponding to the current calibration operation, or if the calibration event type corresponding to the calibration image matches the calibration event type corresponding to the current calibration operation.

Techniques for determining print settings of a source document are described. In an example, a scanned copy of a source document is obtained. The scanned copy of the source document is then analyzed to obtain print parameters associated with the source document, where the print parameters indicate print settings used to print the source document. A document may then be caused to be printed on a print media based on the print parameters.

An image processing apparatus capable of improving operability of a question preparer. The image processing apparatus including a memory device that stores instructions, and a processor that executes the instructions to: generate a question sheet image by controlling a reading unit to read a question sheet in which question sentences and question numbers are written, generate an answer sheet image by controlling the reading unit to read an answer sheet that includes answer fields, question numbers corresponding to the answer fields, and marks showing marking results, detect an answer field including a wrong answer mark from the answer sheet image, obtain a question number corresponding to the detected answer field from the answer sheet image, obtain a question sentence corresponding to the obtained question number from the question sheet image, and generate a review image including the obtained question sentence and a new answer field.

A print apparatus calibration method is disclosed. The method comprises printing, from each of a plurality of dies of a print head onto a printable substrate, an image in a first color according to a calibration pattern and an image in a second color according to the calibration pattern, the calibration pattern comprising a plurality of patches having a plurality of different densities. The method may comprise scanning, using a scanning unit, the images formed on the printable substrate to generate scanned image data, wherein the images in the first color are scanned by a first scanning module of the scanning unit and the images in the second color are scanned by a second scanning module of the scanning unit. The method may comprise analyzing, using processing apparatus, the scanned image data to identify any differences between printed densities of corresponding patches in different images of the same color. The method may comprise performing a calibration based on the analysis. A print apparatus and a machine-readable medium are also disclosed.

An image forming apparatus prints a template sheet. The template sheet includes a graphical code and operation boxes. The graphical code includes information corresponding to a storage location address that stores information about settings for one or more image forming apparatuses. A user indicates what information is desired or to be changed on the image forming apparatus, marks it on the template sheet and scans the template sheet. Based on the instructions on the template sheet, information for settings is retrieved for an apparatus in a network. Maintenance information for the image forming apparatus also is retrieved using the template sheet and operation boxes.

An image forming apparatus prints a template sheet. The template sheet includes a graphical code and operation boxes. The graphical code includes information corresponding to a storage location address that stores information about settings for one or more image forming apparatuses. A user indicates what information is desired or to be changed on the image forming apparatus, marks it on the template sheet and scans the template sheet. Based on the instructions on the template sheet, information for settings is retrieved for an apparatus in a network.

A copying apparatus capable of calibrating a copy position comprises a scanning module scanning an original to obtain an original image; and a processing module being electrically connected to the scanning module and recognizing whether the original image contains an original mark corresponding to a template mark. If the original image contains the original mark, then the processing module generates print data for being printed out according to the original image and a position parameter of the template mark. A copying method capable of calibrating the copy position is also provided. Thus, the copy position can be calibrated according to the mark of the original to prevent the copy result from having a positional offset. Consequently, no positional offset occurs even if the original is copied multiple times based on the previous generation of original.

A surface object comprises a surface with a boundary, the surface having a background color. At least one optical marker is provided on the surface for assisting of image processing for improving appearance of an image of the surface with the boundary. At least one optical marker includes at least one color which is lighter or darker than the background color and the color different ΔE between the background color and the at least one color of the optical marker being between ΔE=2 and ΔE=18.

An image processing system includes a reading unit, a checking unit, a display control unit, and an image correcting unit. The reading unit reads image information from an original manuscript to generate image data. The checking unit checks whether or not a plurality of items listed in the original manuscript include an unentered item with the result of a character recognition process for recognizing a character contained in the image data. When the unentered item is present, the display control unit performs control to display information for informing a user of the unentered item. The image correcting unit adds a text with respect to the unentered item according to an input made by a user to correct the image data.