Patent application number | Description | Published |
20140210891 | CONTROL OF LIGHT-EMITTING DIODES AND SENSORS - A densitometer includes a plurality of light-emitting diodes (LEDs) and at least one sensor. The LEDs are activated one at a time in a sequential, repeatable order. Photonic energy from each LED is reflected off an entity and is incident upon the sensor(s). Circuitry samples or acquires signaling from the sensor(s) in accordance with the respective LED activations. Signaling from the densitometer can be used in controlling ink-jetting printers or other apparatus. | 07-31-2014 |
20150197082 | Method of controling a printer and printer having at least one print bar - The invention relates to a method of controlling a printer, the printer having an array of nozzles which extends across a print zone of the printer, the method comprising the steps of: evaluating a nozzle status of the array of nozzles; printing a first swath across the print media in the print zone, wherein the array of nozzles is located in a first position during printing of the first swath; determining a second position of the array of nozzles for printing a second swath so that, under consideration of the determined nozzle status, the combined output of the first and second swaths meets a predetermined criterion; moving the array of nozzles to the determined second position and printing the second swath across the print media in the print zone. | 07-16-2015 |
20150251411 | PRINTING SYSTEM CONTROL - A method and system of controlling at least one printbar in a printing system are described. The printing system has one or more of printbars ( | 09-10-2015 |
20150298474 | METHODS FOR PRINTING WITH A PRINTHEAD - A method for printing, comprising: obtaining an imaging matrix, in which each row or each column of cells is associated with at least a nozzle of a printhead, and in which each cell contains an initial value of a parameter which is related to an amount of ink to be deposited on the print medium; dividing the imaging matrix into at least two subsets of cells, such that each cell of the matrix belongs to one of said subsets; associating with each subset of cells a conversion function; obtaining a converted imaging matrix by applying to the initial value in each cell the function that corresponds to the subset to which the cell belongs; and printing using said converted imaging matrix. | 10-22-2015 |
20150324996 | IMAGE PROCESSING FOR PRINTING - Image processing for printing comprises identifying regions of an input image having characteristics of distinct printing requirements; classifying each pixel within each identified region based on the characteristic of the identified region; applying a colour mapping to each pixel according to the classification of the pixel to optimize each color mapping in accordance with at least one of plurality of attributes. | 11-12-2015 |
20150360492 | NOZZLE CALIBRATION - An apparatus and method for use in generating calibration parameters for an inkjet nozzle are disclosed. The method comprises obtaining data defining how calibration parameters associated with a nozzle change as the number of ink drops ejected from a nozzle increases, determining a number of ink drops ejected from the nozzle, and adjusting calibration parameters for the nozzle based on the determined number of ink drops ejected from the nozzle and the obtained data defining how calibration parameters associated with a nozzle change as the number of ink drops ejected from a nozzle increases. | 12-17-2015 |
20150365565 | TO GENERATE A PRINT SPECIFICATION COLOR SEPARATION LOOK-UP TABLE - In a method to generate a print specification color separation look-up table, a device color space is sampled to provide at least one sampled value. The sampled value is transformed to a device independent color space. The transformed sampled value is gamut mapped using a source color gamut and a color separation color gamut to provide a color separation value. The gamut mapping is performed in an expansion mode and a compression mode. | 12-17-2015 |
20160080608 | COLOR SEPARATION - A method of defining color separation for printing an image via NPacs, the method comprising: selecting a plurality of NPacs corresponding to a plurality of points within an RGB cube to provide a tessellation in RGB space translated to a valid tessellation in an NPac-related space; and defining color separation from the selected NPacs. | 03-17-2016 |
20160086059 | CALIBRATION TARGET - A calibration target is disclosed. The calibration target is created such that a color patch is sensitive to drop weight changes. | 03-24-2016 |