The present invention relates to a method for coating, optionally with specific colouring, an exposed surface of a body with simultaneous formation of a structured surface, including projecting formations, via a device for depositing one or more liquid substances in droplets, in particular by a jet, said method consisting, for each affected site (1) of the surface to be printed (1), of consecutively depositing at least two vertically adjacent layers (6, 6) of a first substance selected from the group made up of a size, a varnish, an adhesion or attachment agent and a coating agent, preferably white or transparent and at least one second substance such as a colouring substance or a mixture of colouring substances, each of the consecutive layers (6, 6) being formed by depositing droplets (4, 4; 5). The method is characterised in that it consists of consecutively depositing at least three vertically adjacent layers (6, 6) which are made up, alternatively, of a first substance and a second substance, each layer (6, 6) being made up of separate individual droplets (4, 4; 5), arranged in each layer according to a predetermined pattern.

An ink jet recording method includes: a step of forming an image by ejecting liquid droplets of an aqueous color ink to a recording medium; and a step of forming a coating ink layer by ejecting liquid droplets of an aqueous coating ink on the image, and in the ink jet recording method described above, the aqueous color ink is ejected in the form of a plurality of liquid droplets having different liquid droplet amounts per one droplet, and the aqueous coating ink is ejected to have a liquid droplet amount per one droplet smaller than a liquid droplet amount of a smallest liquid droplet of the aqueous color ink.

Methods, apparatuses, devices, and systems are disclosed herein for upscaling an input image to a higher resolution while simultaneously converting the image data from a multi-drop state to a binary state. These systems and methods use a probabilistic combination of randomized and biased positioning of inkjet firings in order to yield perceptibly lower graininess in low-coverage areas of output prints without introducing new artefacts.

A printing method includes determining the upper limit of the amount of the ink to be discharged based on a color saturation suppression upper limit, and at least one of an overflowing suppression upper limit, a bleeding suppression upper limit, and an aggregation suppression upper limit. The determining of the upper limit of the amount of the ink to be discharged includes setting in advance priorities among the suppressing of the color saturation of the ink and at least one of the overflowing of the ink, the bleeding of the ink, and the aggregation of the ink, and determining the upper limit of the amount of the ink to be discharged based on the priorities.

Methods, apparatuses, devices, and systems are disclosed herein for upscaling an input image to a higher resolution while simultaneously converting the image data from a multi-drop state to a binary state. These systems and methods use a probabilistic combination of randomized and biased positioning of inkjet firings in order to yield perceptibly lower graininess in low-coverage areas of output prints without introducing new artefacts.

An image processing device causing a printing execution unit to: in a first case where a specific condition indicating that ink supply from an ink supply unit to a printing head may be delayed in partial printing is not satisfied, print a partial image by single partial printing; in a second case where the specific condition is satisfied, print the partial image by partial printings including a first partial printing and a second partial printing; in the first case, form a dot having a specific size by the single partial printing, as a dot corresponding to a specific pixel in the partial image; and in the second case, form a dot having a size smaller than the specific size by the first partial printing and form a dot having a size smaller than the specific size by the second partial printing, as the dot corresponding to the specific pixel.

An object of the present invention is to provide an ink jet printing apparatus whose compactness is improved. The ink jet printing apparatus includes: a print head; an ink tank for each ink color; an ink flow path plate for each ink color having a supply flow path that guides the ink supplied from the ink tank to the print head and a recovery flow path that guides the ink recovered from the print head to the ink tank; a flow path concentration plate in which the supply flow path and the recovery flow path for each ink color are concentrated and which guides the ink between the ink flow path plate and the print head; and one or a plurality of function parts provided within a range of a space demarcated by the ink flow path plate and the flow path concentration plate.

The reproduction of a target color is appropriately performed with high accuracy. A printing system 10 includes a printing device 12 and a host PC 14 that is a control device. The printing device 12 includes a plurality of inkjet heads 202y to 202k and a colorimeter 204. The host PC 14 is capable of performing a color matching process for matching a color printed by the inkjet heads 202y to 202k with a target color, and performs, in the color matching process, a target color acquiring process for acquiring the target color using the colorimeter 204, an initial value setting process for setting an initial value of a color setting value, and a target color corresponding value determination process for selecting a patch having a color close to a target color from among a plurality of patches by causing the inkjet heads 202y to 202k to print the patches.

A liquid discharge system includes a pretreatment execution device to perform pretreatment on a medium and a liquid discharge head to discharge liquid onto the medium based on image information on an image to be output. The liquid discharge system further includes circuitry configured to control a manner of the pretreatment based on the image information.

An image processing apparatus configured to generate, based on image data corresponding to a printing image, print data for causing a printer to execute printing includes an input unit (input device, display device) configured to receive, for each of the first ink and the second ink, an ink discharge correction volume for correcting an ink volume discharged from predetermined nozzles among a plurality of first nozzles and a plurality of second nozzles, and a print data generating unit (printer driver) configured to generate the print data based on the image data and the ink discharge correction volume input.