Patent application number | Description | Published |
20100251914 | IMAGING MEMBER - An imaging member is disclosed having a surface layer comprising a heat-sensitive material whose surface compatibility to printing agents, such as toners and inks, can be substantially reversed in response to small changes in temperature. The imaging member is suitable for use in lithographic and printing applications, permitting reversible switching between compatibility states of printing agents, such as between hydrophilic and hydrophobic states or oleophilic and oleophobic states, and enabling rapid production of images on a recording medium. | 10-07-2010 |
20130186290 | JOINT FEEDFORWARD & FEEDBACK CONTROL OF A KEYED INKING UNIT - A method and system to control ink keys for a printing machine is provided. The ink keys are adjustable to control ink feed to individual zones located across the width of an ink roller. Feedforward and feedback control loops adjust the ink supply dynamically based on a pixel count of the image content. The pixel count looks ahead in the video stream to allow time for the adjustment at the inker keys to propagate through the ink train to affect ink output onto the imaging drum. Feedback of the achieved ink density on control patches on the imaging drum is also used to command the inker key motors. Feedback is also used to update the inker propagation delay and dynamic model used to determine how much the inker keys need to be adjusted based on the pixel count stream. | 07-25-2013 |
20130186291 | IMAGE DATA BASED TEMPERATURE CONTROL OF A KEYLESS INKER - A method and systems to control the temperature of a Keyless inker for variable data lithography printing. Inker heating elements are adjustable to control ink feed to individual zones located across the width of an ink roller. Feedforward and feedback control loops adjust the ink supply dynamically based on a pixel count of the image content. The pixel count looks ahead in the video stream to allow time for the adjustment at the inker heating elements to propagate through the inker unit to affect ink output onto the imaging drum surface. Feedback of the achieved ink density on control patches on the imaging drum is also used to command the inker heating elements. Feedback is also used to update the inker propagation delay and dynamic model used to determine how much the inker keys need to be adjusted based on the pixel count stream. | 07-25-2013 |
20130327237 | SYSTEMS AND METHODS FOR IMPLEMENTING DIGITAL OFFSET LITHOGRAPHIC PRINTING TECHNIQUES - A system and method are provided to implement variable data lithographic image forming in devices that are designed to maximize re-use of conventional offset lithographic image forming components, module and architectures. A truly variable data digital lithography scheme has been proposed as a departure from conventional offset lithography schemes. This disclosure introduces a system architecture to overcome limitations based on the architectural differences that make acceptance of the variable data lithographic scheme less practical and less attractive to some manufacturers and users. The disclosed systems and methods propose incorporating novel aspects of the true variable digital printing scheme into conventional offset lithographic modules and architectures. This disclosure describes re-use of conventional offset lithographic modules and/or architectures while making the disclosed systems and methods digital. | 12-12-2013 |
20140085396 | MARKING MATERIAL FOR LASER GLOSSING SYSTEMS AND METHODS - A system for generating a differential gloss image includes a marking material having absorbing elements useful for absorbing electromagnetic radiation emitted by a laser glossing imager, and accommodating heating and resultant melting of the marking material for altering a surface of the marking material image. The absorbing element is a pigment or dye. The absorbing element is carbon black, or a pigment capable of absorbing IR light, while being transparent to visible light. | 03-27-2014 |
20150367340 | System And Method For Forming Bonded Substrates - An apparatus for bonding two substrates includes a first roller, a second roller that forms a nip with the first roller, a substrate transport configured to move the first substrate and a second substrate through the nip simultaneously, and a controller. The controller operates the substrate transport to move the first substrate and the second substrate through the nip simultaneously, with a pattern of a hydrophobic material on a first side of the first substrate engaging a first side of the second substrate. The first substrate engages the first roller, which has a higher temperature than the second roller, and the hydrophobic material penetrates the first and second substrates to bond the substrates together. | 12-24-2015 |
20150367341 | Paper-Based Chemical Assay Devices With Improved Fluidic Structures - A chemical assay device includes a hydrophilic substrate and one or more hydrophobic structures that extend from a first side of the hydrophilic substrate to a second side of the hydrophilic substrate. A hydrophobic structure in the hydrophilic substrate forms a fluid barrier wall that extends from the first side of the hydrophilic substrate to the second side of the hydrophilic substrate with a deviation of less than 20° from a perpendicular axis between the first side and the second side. | 12-24-2015 |
20150367342 | Apparatus For Producing Paper-Based Chemical Assay Devices - An apparatus produces chemical assay devices from a hydrophilic substrate, hydrophobic materials, and a chemical reagent. The apparatus includes a first print zone that forms hydrophobic material in a predetermined arrangement on the hydrophilic substrate, a structure formation unit configured to enable the first layer of the hydrophobic material to penetrate the hydrophilic substrate. | 12-24-2015 |
20150367615 | Apparatus For Forming Hydrophobic Structures In Porous Substrates - An apparatus for distributing a hydrophobic material in a hydrophilic substrate includes a first plate, a second plate, a heater operatively connected to the first plate and configured to heat the first plate to a first temperature that is greater than a second temperature of the second plate, and an actuator configured to move the first plate and second plate together with a hydrophilic substrate between the plates. The first plate and second plate form a temperature gradient to enable a hydrophobic material on one side of a hydrophilic substrate that faces the second plate to penetrate into the hydrophilic substrate towards the first plate. | 12-24-2015 |
20150367654 | System And Method For Forming Hydrophobic Structures In A Porous Substrate - An apparatus for distributing a hydrophobic material in a substrate includes a first roller, second roller that engages the first roller to form a nip, a heater operatively connected to the first roller and configured to heat the first roller to a first temperature that is greater than a second temperature of the second roller, and a substrate transport configured to move a substrate through the nip at a predetermined velocity. The first roller engages a first side of the substrate and the second roller engages a second side of the substrate to enable the hydrophobic material to penetrate into the substrate. | 12-24-2015 |