An information processing apparatus includes: a print data generating section that generates print data of a color chart in which a plurality of patches are arranged and which includes an identification patch indicating a printing condition of a printing apparatus when the color chart is printed; and a printing control section that enables the printing apparatus to print the print data of the color chart that varies depending on the printing condition.

A printer configured to perform printing on a medium while being manually moved to the medium includes a print job acquisition section configured to obtain a print job, a movement detection section configured to detect a movement direction of the printer relative to the medium, and a first control section configured to make a print head while the printer is moved in a first direction in an odd-numbered pass, and make the print head perform printing while the printer is moved in an opposite direction to the first direction in an even-numbered pass. When the printer is moved in the opposite direction to the movement direction in the pass in which the printing is in progress other than the last pass, the first control section stops the printing by the print head in the pass in which the printing is in progress and the subsequent passes.

When a print data creation program is executed by a computer, the computer performs the following processing. The computer acquires image data representing a print image from a storage. The computer divides the print image represented by the acquired image data into a plurality of divided images of a desired resolution. The computer creates print data to be printed by a print device, from at least one of the plurality of divided images.

A printing apparatus includes a head to discharge liquid, a carriage to support the head and reciprocate in a forward direction and a backward direction, and a controller. The controller executes a printing process to print one image in a plurality of copies by discharging the liquid from the head while moving the carriage in the forward direction and the backward direction, based on a print job for printing the one image in the plurality of copies, and a first determining process to determine a moving direction of the carriage for second and following copies, based on a moving result of the carriage in printing for the first copy in the printing process.

Provided is a printing method for performing printing using a serial printer. In printing of a print image including a line image, the printing method includes a raster line forming step of forming each of raster lines configuring the image, by a plurality of pass operations. In the formation of each of the raster lines, when printing of a region corresponding to edge pixels of the line image by a first pass operation, which is one of the plurality of pass operations, is first printing, and printing of the region corresponding to the edge pixels by a second pass operation that is different from the first pass operation, of the plurality of pass operations, is second printing, a brightness of the printing by the second printing is higher than a brightness of the printing by the first printing.

The invention relates to a method for detecting a failing ejection unit in an array of ejection units during printing of a digital image with liquid ink in a printer wherein a medium is transported relative to the array. The printed image is captured to density values on print positions of the printed image. The invented method comprises a step of adapting a halftone mask that is used in preparation of the digital image, such that from a variation in the image density around the line shaped defect the exact nozzle number associated with the failing ejection unit can be determined.

A system is disclosed. The system includes at least one physical memory device to store compensation logic and one or more processors coupled with the at least one physical memory device to execute the compensation logic to generate inverse transfer functions for each of a plurality of color planes to compensate for overlapping pel forming elements of adjacent printheads based on ink deposition functions for groups of pel forming elements including non-overlapping pel forming elements and the overlapping pel forming elements, wherein the inverse transfer functions transform output digital counts and the ink deposition functions represent output ink amount versus input digital count and generate compensated halftones for each of a plurality of color planes based on the inverse transfer functions.

Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.

A printing apparatus includes a print execution section and a controller. The print execution section includes: a printing head having nozzles from which ink is discharged; a main-scan section configured to execute main-scan in which the printing head moves along a main-scan direction relative to a printing medium; and a sub-scan section configured to execute sub-scan in which the printing medium moves along a sub-scan direction relative to the printing head. The controller obtains object image data indicating an object image formed by pixels, generates pieces of partial printing data by processing the object image data in an order from a downstream side toward an upstream side in the sub-scan direction, and causes the print execution section to execute, a plurality of times, the sub-scan and partial printing in which ink is discharged from the printing head during the main-scan by use of the pieces of partial printing data.

The present disclosure aims to provide a high quality image without conspicuous graininess and density unevenness. An embodiment of the present invention is an apparatus for printing a plurality of dot patterns on a printing medium, the dot patterns being formed by substantially same color and substantially same dot diameter, the apparatus including: a first creation unit configured to create, based on a first tone value, a first dot pattern and a second dot pattern printed and superimposed on the first dot pattern; and a second creation unit configured to create, based on a second tone value larger than the first tone value, a third dot pattern having an equal or larger number of dots compared to the first dot pattern and a fourth dot pattern printed and superimposed on the third dot pattern and having an equal or larger number of dots compared to the second dot pattern.