A method for reducing artifacts in an electrophotographic printing system includes receiving a print job including image data for a set of pages. The electrophotographic printing system is used to print a block of pages from the print job to provide corresponding printed pages. Image data for the block of pages is analyzed to determine a cross-track image profile for each page in the block of pages. Image data for a compensation image and a number of compensation images are determined, wherein the compensation image has a cross-track image profile which has an inverted shape relative to an average of the cross-track image profiles for the block of pages. The printing of the compensation images reduces image burn-in artifacts which result from the printing of the block of pages.

A recording device includes a recording unit configured to record a plurality of types of recording materials on a medium, and a control unit configured to control recording by the recording unit. When performing recording on the medium in accordance with recording data for recording a plurality of types of recording materials in a same region on the medium, the control unit identifies a first recording material with a relatively high recording density in the same region, and a second recording material with a lower recording density in the same region than that of the first recording material, based on recording data, and the control unit performs recording such that a second region in which recording is performed with the second recording material corresponding to the same region is smaller than a first region in which recording is performed with the first recording material corresponding to the same region.

An image forming system of an aspect of the present invention includes: a first image forming portion; a second image forming portion connected in series to the first image forming portion; and an assignment determining portion that determines an assignment of image formation of print data to the first image forming portion and the second image forming portion in accordance with contents of the print data. The first image forming portion forms a first image on the continuous sheet on the basis of the assignment determined by the assignment determining portion, and the second image forming portion forms a second image on a region which is different from a region where the first image is formed on the continuous sheet and which overlaps a non-printable region that is a region where the first image forming portion cannot print, on the basis of the assignment determined by the assignment determining portion.

An image forming apparatus includes processing circuitry. The processing circuitry receives a timing selected for re-forming an image and re-forms the image determined to be defective based on information about the image formed on a first conveyance medium, on a second conveyance medium at the selected timing.

A generation unit configured to receive image data and to generate print data from received image data; a printing control unit configured to form an image on a sheet based on print data generated by the generation unit; a determination unit configured to determine whether or not a delay in generation of the print data has occurred based on a data amount of the received image data and a data amount of print data generated by the generation unit; and an issuance unit configured to issue a command to insert an auxiliary pattern in a case where the determination unit determines that the delay has occurred are included.

A method for correcting tone-level non-uniformities in a digital printing system includes printing a test target having a set of uniform test patches. The printed test target is automatically analyzed to determine tone-level errors as a function of cross-track position for each of the test patches. A tone-level correction function is determined and represented using a set of one-dimensional feature vectors which specifies tone-level corrections as a function of cross-track position, pixel value and time. Corrected image data is determined by using the tone-level correction function to determine a tone-level correction value for each image pixel responsive to the input pixel value, cross-track position and time. The corrected image data is printed using the digital printing system to provide a printed image with reduced tone-level errors.

A control portion has a conversion portion that converts image data to be used for forming a recorded image by using either a first conversion condition which has been set such as to obtain a first gradation characteristic in the image to be formed on the recording material when a first image forming operation is executed or a second conversion condition which has been set such as to obtain a second gradation characteristic, which is different from the first gradation characteristic, in the image when a second image forming operation is executed, a peripheral velocity ratio between an image bearing member and a developer bearing member being larger during the second image forming operation than during the first image forming operation, and enables the first image forming operation or the second image forming operation to be performed on the basis of converted image data.

An image forming apparatus includes a controller capable of executing a normal mode in which an electrostatic image formed on an image bearing member is developed by setting a peripheral velocity ratio of a developer bearing member relative to the image bearing member to a prescribed peripheral velocity ratio, and a color gamut enlargement mode in which a color gamut of an image to be formed on a recording medium is enlarged as compared to the normal mode by setting the peripheral velocity ratio of the developer bearing member relative to the image bearing member to a larger peripheral velocity ratio than the peripheral velocity ratio in the normal mode, wherein the controller identifies image color gamut information included in image data and forms an image by selecting the normal mode or the color gamut enlargement mode in accordance with the image color gamut information.

An example method for operating a printing system in accordance with aspects of the present disclosure includes receiving, at a printing unit, a print job, receiving, at the printing unit, a trigger generated by a finishing unit, and initiating the print job based on the generated trigger.

A print control apparatus includes an analyzing unit, an obtaining unit, and a controller. The analyzing unit analyzes a total number of pages of received print data. The obtaining unit obtains number-of-printable-pages information, which is information on a number of pages printable on a bundle of continuous form paper set in a printer that performs printing on continuous form paper. When reference to the number-of-printable-pages information obtained by the obtaining unit and the total number of pages analyzed by the analyzing unit indicates that a print result based on the print data is to be printed on multiple bundles of continuous form paper, the controller controls the printer to print, on at least last two pages of the currently set bundle of continuous form paper, information indicating an order of output of the bundle of continuous form paper.