Patent application number | Description | Published |
20080266344 | Liquid Ejector and Method for Ejecting Liquid - A liquid discharge apparatus that is capable of setting a proper deflection amount for deflecting an ink discharge direction even when the distance between the ink discharge surface and the ink landing surface of print paper varies and method of using same. The liquid discharge apparatus includes a head in which a plurality of nozzle-incorporated ink discharge sections are arrayed, discharge direction deflection means for deflecting the discharge direction of an ink discharged from a nozzle of each ink discharge section in the direction of ink discharge section arrangement, distance detection means for detecting the distance between the ink discharge surface of the head and the ink landing surface of print paper, and discharge deflection amount determination means for determining the ink discharge deflection amount (discharge angle) to be provided by the discharge direction deflection means in accordance with the results of detection by the distance detection means. | 10-30-2008 |
20080273060 | Liquid discharging apparatus and liquid discharging method - In a liquid discharging method for discharging droplets from a plurality of droplet discharging portions of a liquid discharging head, an actual pattern is created to indicate the discharging states of the droplets from the liquid discharging portions, and information about a defective liquid discharging portion having discharging failure is obtained by checking the discharging states. According to the information, the defective liquid discharging portion is prohibited form discharging, and discharging of droplets from a liquid discharging portion near the defective liquid discharging portion is controlled to reduce the influence of discharging failure of the defective discharging portion, and to correct image information on a recording medium. | 11-06-2008 |
20080316509 | Print apparatus, server, method for improving print characteristics, and computer program therefor - A print apparatus connected to a server via a network includes an improvement-information requesting unit configured to notify the server via the network of identification information unique to a print head; an improvement-information storage unit configured to store downloaded head-characteristic-improvement information; and a print processor configured to perform a print operation by referring to the head-characteristic-improvement information stored in the improvement-information storage unit. | 12-25-2008 |
20090051717 | Ejection condition adjustment apparatus, droplet ejecting apparatus, and ejection condition adjustment method and program - An ejection condition adjustment apparatus includes a unit configured to set, in a case where a large head to be driven includes a plurality of small heads each having a number of orifices and the small heads are disposed adjacent to one another on the large head such that regions of the respective small heads where the orifices are provided partially overlap one another, a range of orifices to be used and an ejection timing for the individual small heads such that positional shifts between adjoining ones of patterns formed by the respective small heads are minimized. | 02-26-2009 |
20090051719 | Maintenance method for discharging head, maintenance device for discharging head, droplet discharging apparatus, discharging head, and computer program - A maintenance method is provided for a discharging head in which multiple discharging portions are arranged in line. The maintenance method includes the steps of performing an operation of continuously discharging droplets from one discharging portion or a plurality of unadjacent discharging portions, and repeating the operation for one discharging portion or a plurality of discharging portions adjacent to the previous discharging portion or the previous discharging portions in a predetermined direction. | 02-26-2009 |
20090115806 | BOUNDARY VALUE TABLE OPTIMIZING DEVICE, BOUNDARY VALUE TABLE SETTING DEVICE, LIQUID EJECTING HEAD, LIQUID EJECTING DEVICE, AND COMPUTER PROGRAM - In a method of substantially correcting gradation values in a gradation correcting unit, the number of reproducible gradations is substantially reduced. Selection information of a boundary value table for multi-value error diffusion is stored, by ejection condition, in an information storing unit of a liquid ejecting head that can represent one pixel with a large number of liquid droplets. When the liquid ejecting head is mounted, selection information matching an ejection condition is read out and a boundary value table corresponding to the selection information is set for reference by a half toning unit. Consequently, the boundary value table is optimized to correct a gradation characteristic without substantially reducing the number of reproducible gradations. | 05-07-2009 |
20090179931 | LIQUID DISCHARGE APPARATUS AND LIQUID DISCHARGE METHOD - A liquid discharge apparatus includes a liquid discharge head ( | 07-16-2009 |
20100026764 | DROPLET DISCHARGE HEAD AND DROPLET DISCHARGING UNIT INCORPORATING THE SAME - A droplet discharge head includes: a liquid reservoir which holds a liquid; a channel through which the liquid is guided to the liquid reservoir; and a driving element which changes the pressure in the liquid reservoir so as to discharge droplets of the liquid contained in the liquid reservoir through a nozzle, in which wall surfaces of the liquid reservoir and of the nozzle are arranged in a continuous line at a side opposite the channel with respect to the center of the nozzle as seen in a cross-sectional view through a central axis of the nozzle. | 02-04-2010 |
20100079515 | INK JET PRINTER DEVICE AND HUMIDIFICATION METHOD OF EJECTION PORTION - An inkjet printer device includes: an ejection portion that ejects an ink droplet onto a recording medium; a humidification portion that is provided upstream of the ejection portion in a transportation direction of the recording medium and ejects a wetting liquid droplet onto the recording medium; and a control portion that makes the ink droplet be ejected onto the recording medium from the ejection portion and the wetting liquid droplet be ejected onto the recording medium from the humidification portion, wherein the ejection portion is humidified during printing by letting the wetting liquid droplet ejected onto the recording medium evaporate from the recording medium. | 04-01-2010 |