A method of controlling a system including an arrangement of at least two nozzles, wherein the arrangement and the shape move relative to each other, each nozzle traces a respective path on the shape, and each nozzle is configured to jet drops at actual jetting locations along the respective path of the nozzle. The method results in sequence of actuation events received from a control signal to be more frequent than would be needed for an arrangement printing on a flat surface to produce the required dot resolution. It is then possible to select which of the individual nozzles are to jet for a given actuation event from the sequence so that the actual jetting locations deviate from the target jetting locations by no ore than a define maximum error distance.

An ink printing process employs per-nozzle droplet volume measurement and processing software that plans droplet combinations to reach specific aggregate ink fills per target region, guaranteeing compliance with minimum and maximum ink fills set by specification. In various embodiments, different droplet combinations are produced through different print head/substrate scan offsets, offsets between print heads, the use of different nozzle drive waveforms, and/or other techniques. Optionally, patterns of fill variation can be introduced so as to mitigate observable line effects in a finished display device. The disclosed techniques have many other possible applications.

A system and method for ejecting one or more fluids from a digital dispense device. The method includes selecting a) fixed target areas and total fluid volumes for the target areas of the substrate; b) a predetermined droplet volume for the target areas; c) calculating a required number of droplets for the target areas; d) determining a maximum number of droplets per pixel based on the target areas; e) calculating a number of droplets per pass of an ejection head over the target areas; f) modifying one or more dimension of the target areas to create modified target areas; g) selecting and centering the modified spot size target areas in the target areas; and h) depositing fluids in the modified target areas while scanning the ejection head over the modified target areas.

A printing apparatus comprises: a printing unit configured to print an image by applying, onto a printing medium, a first ink containing a fluorescent color material and a second ink containing not fluorescent color material but a resin; a decision unit configured to decide an amount of the second ink applied to a unit area on the printing medium based on an amount of the first ink applied to the unit area and luminescence information representing a luminescence intensity; and a control unit configured to control an application operation of the first ink and the second ink by the printing unit based on the amount of the first ink and the amount of the second ink applied to the unit area.

There is provided a method for rendering an image according to selected image quality attributes. Two or more image quality attributes are selected from a plurality of attributes of the image. A set of pigments for an area of the image and a density for each pixel of the area are determined. A quantity of pretreatment for deposition onto a print target is determined, where the pretreatment quantity is dependent on the pigments, the density, and the selected image quality attributes.

An ink jet process is used to deposit a material layer to a desired thickness. Layout data is converted to per-cell grayscale values, each representing ink volume to be locally delivered. The grayscale values are used to generate a halftone pattern to deliver variable ink volume (and thickness) to the substrate. The halftoning provides for a relatively continuous layer (e.g., without unintended gaps or holes) while providing for variable volume and, thus, contributes to variable ink/material buildup to achieve desired thickness. The ink is jetted as liquid or aerosol that suspends material used to form the material layer, for example, an organic material used to form an encapsulation layer for a flat panel device. The deposited layer is then cured or otherwise finished to complete the process.

A printing control apparatus includes a control unit configured to perform control so that a distribution ratio based on which color separation data separated as having a predetermined color is distributed into data for a first nozzle array and a distribution ratio based on which color separation data is distributed into data for a second nozzle array are different depending on a tone value in the color separation data, and a generation unit configured to generate printing data to be used for printing by the first nozzle array based on the distributed data for the first nozzle array and generate printing data to be used for printing by the second nozzle array based on the distributed data for the second nozzle array.

The present invention is directed to obtaining an object having an anisotropic reflection characteristic without using a lenticular lens. A print product including a print medium on which a repetitive structure of projected portions and recessed portions is formed out of image forming materials including a color material includes a first layer formed on surfaces of the projected portions out of a first color material among the image forming materials, and a second layer formed on the recessed portions out of a second color material different from the first color material, wherein the projected portions have a height to occlude part of the second layer when observed at an angle different from an angle formed by a normal to a surface of the print medium.

An inkjet image forming apparatus, includes: a transfer part that transfers ink ejected from an inkjet head and carried on an intermediate transfer body to a recording medium; and a hardware processor that: detects a transfer rate when the ink is transferred by the transfer part; and controls a control parameter that influences how the ink spreads when being transferred to the recording medium, according to the transfer rate detected by the hardware processor.

A surface tension difference between a first ink and a third ink is smaller than a surface tension difference between the first ink and a second ink. A first gradation value for the first ink is quantized to generate a first quantized value, a second gradation value for the second ink is quantized to generate a second quantized value, and a third gradation value for the third ink is quantized to generate a third quantized value. The above quantization processing is performed such that, in a predetermined pixel region, the number of pixels for each of which the second quantized value and the third quantized value both indicate printing is greater than the number of pixels for each of which the first quantized value and the third quantized value both indicate printing.