| Patent application number | Description | Published |
|---|
| 20090009573 | INK-JET PRINTER USING PHASE-CHANGE INK PRINTING ON A CONTINUOUS WEB - A printing apparatus includes a printing station, including at least one printhead for applying phase-change ink to the substrate, and a backing member disposed on an opposite side of the substrate substantially opposite the printhead, the backing member causing the substrate to reach a predetermined ink-receiving temperature. | 01-08-2009 |
| 20090116071 | SYSTEM AND METHOD TO PERTURB ERROR DIFFUSION PATTERNS - A method for halftoning an image using an error diffusion process generates an upper threshold level and a lower threshold level and selects a region number parameter. A pixel from the input image is selected and compared to the upper and lower threshold levels. A first pixel value is output when the input pixel value is below the lower threshold level. The first pixel value is output when the input pixel value is below the upper threshold level and above the lower threshold level and a value of the input pixel divided by the region number parameter, modulo 2, equals zero. A second pixel value, the first pixel value being different from the second pixel value, is output when the input pixel value is below the upper threshold level and above the lower threshold level and a value of the input pixel divided by the region number parameter, modulo 2, is greater than zero. The second pixel value is output when the input pixel value is above the upper threshold level. The error between the output pixel value and the modified input pixel value is diffused to neighboring pixels. | 05-07-2009 |
| 20090237434 | SYSTEMS AND METHODS FOR DETECTING PRINT HEAD DEFECTS IN PRINTING CLEAR INK - A method for detecting a defect in an inkjet print head for printing a substantially clear ink includes including an ultraviolet or infrared sensitive material in the substantially clear ink, marking a test image on a substrate by jetting the substantially clear ink through one or more jets of the inkjet print head to be evaluated, exposing the test image to activating radiation having a wavelength to which the included ultraviolet or infrared sensitive material responds. During or following the exposing, the test image is evaluated with an image sensor, and whether the inkjet print head or any one of the one or more jets thereof being evaluated is defective is then determined based on the evaluation. A system for the method is also set forth. | 09-24-2009 |
| 20090263583 | SCRATCH OFF DOCUMENT AND METHOD OF PRINTING SAME - A scratch-off document may include a substrate. The substrate may include a front side and a backside with an information layer on the front side. An information layer may include an indicia component and a noise component. The noise component together with the indicia component may include a plurality of pile heights, and the indicia component may be visible when combined with the noise component. A scratch-off layer is included over the information layer so that the indicia component is not recognizable through the scratch-off layer. | 10-22-2009 |
| 20100097434 | HEATED FOLDING SYSTEM FOR A PHASE CHANGE INK IMAGING DEVICE - A folding system includes a media pathway configured to transport a print substrate having phase change ink thereon. The folding system includes a folding apparatus disposed along the media pathway configured to fold the print substrate. A folding heater is configured to heat the phase change ink on the print media to a folding temperature. The folding temperature is above ambient temperature and below a melting temperature for phase change ink. | 04-22-2010 |
| 20110001314 | SECURITY CODES WITHIN SCRATCH-OFF LAYERS AND METHOD OF EMBEDDING THEREOF - A scratch-off document may include a substrate bearing printed content and a scratch-off layer covering the printed content. The scratch-off layer may include a mass of a first ink and a portion of a second ink embedded within the first ink. The first ink and the second ink may exhibit a metameric match when exposed to visible light, and the second ink may be positioned to form a security code | 01-06-2011 |
| 20110012958 | Staggered Head Stitch Shifts in a Continuous Feed Direct Marking Printer - An imaging device includes an image receiving surface configured to move in a process direction in the imaging device. A plurality of printhead arrays are arranged to deposit marking material onto the image receiving surface. Each printhead array includes a plurality of printheads arrayed in a cross-process direction across the image receiving surface. Each printhead array includes at least one stitch line corresponding to a position along an axis parallel to the cross-process direction where an end of one printhead in the printhead array aligns with an end of another printhead in the printhead array. The at least one stitch line of each printhead array is offset a predetermined distance in the cross-process direction from the at least one stitch line of each of the other printhead arrays. | 01-20-2011 |
| 20110063374 | Method for Achieving Uniform Media Temperature and Size throughout the Pre-Heat Zone - An imaging device includes a source of a substantially continuous web of media, and a web transport system configured to transport the continuous web from the source along a web path having a print zone. At least one printhead arranged along the web path in the print zone and configured to deposit ink onto the web to form images. A preheating system is positioned along the web path between the source and the print zone. The preheating system includes a first heating stage and a second heating stage. The first heating stage has at least one heater configured to heat the web to an initial preheat temperature prior to reaching the second stage. The second stage includes at least one heater configured to reduce a temperature of the web from the initial preheat temperature to a target temperature for the preheating system. | 03-17-2011 |
| 20110111125 | Dithered Printing of Clear Ink to Reduce Rub and Offset - An imaging device includes a media supply and handling system configured to move media along a path. A printing system is disposed along the path that includes at least one printhead for applying melted phase-change ink of at least one color to the media to form images thereon. A fixing assembly is disposed along the path downstream of the printing system that is configured to apply heat and/or pressure to the melted phase change ink of the images on the media. A coating system is disposed along the path downstream from the spreader. The coating system includes at least one printhead for applying a clear ink on top of the images formed on the media by the printing station. | 05-12-2011 |
| 20110141171 | System and Method for Compensating for Small Ink Drop Size in an Indirect Printing System - A method improves transfer efficiency of ink images on an image receiving member that were formed with small ink drops. The method includes identifying image data that correspond to ink drops that have a mass less than a predetermined threshold and that fail to comingle with another ink drop ejected with reference to the image data, modifying the identified image data to generate ink drops that comingle with at least one other ink drop ejected with reference to the image data, generating firing signals for inkjet ejectors in a print head with reference to the image data and modified image data, and ejecting in response to the firing signals a plurality of ink drops from the inkjet ejectors for each identified image data to enable a coalesced ink drop to form on an image receiving surface that has a mass that is greater than the predetermined threshold. | 06-16-2011 |
