| Patent application number | Description | Published |
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| 20080253607 | LINE POSITION CALCULATING METHOD, CORRECTION VALUE OBTAINING METHOD, AND STORAGE MEDIUM HAVING PROGRAM STORED THEREON - A line position calculating method is a method for calculating a position, in a second direction, of a line along a first direction in an image, based on image data of the image constituted by a plurality of pixels arranged in a matrix form in the first direction and in the second direction, the method obtains pixel data of each of a plurality of pixels arranged in the first direction, calculates an extent of unevenness of each tone value indicating the pixel data of each of the plurality of pixels arranged in the first direction, sets a threshold value according to the extent of unevenness, sets a range based on the threshold value, detects a defective pixel in which the tone value indicating the pixel data is out of the range, calculates a representative value indicating a tone value of a pixel row, based on the pixel data of the pixels other than the defective pixel of the plurality of pixels constituting the pixel row, and calculates a position, in the second direction, of the line, based on the representative value of each pixel row. | 10-16-2008 |
| 20090244155 | Liquid ejecting apparatus and liquid ejecting method - A liquid ejecting apparatus for forming a multicolored image on a recording medium includes: a printing head for ejecting a plurality of colors; a head driving section that performs a main scanning for moving the printing head in a main scanning direction; a transporting section that transports the recording medium in a sub-scanning direction crossing the main scanning direction; and a dot control section that controls the head driving section and the transporting section so as to form an image on the recording medium by ejecting the liquids on the recording medium from the nozzle while repeatedly performing the main scanning for moving the printing head in the main scanning direction and a sub-scanning for transporting the recording medium in the sub-scanning direction. | 10-01-2009 |
| 20090251499 | Liquid ejecting apparatus and liquid ejecting method - A liquid ejecting apparatus includes: a printing head that ejects liquid to form dots on a recording medium; a head driving section that performs a main scanning for the printing head; a transporting section that performs a sub-scanning for the recording medium; an image forming section that forms an image, a first dot formation area and a second dot formation area; an overlap control section that performs overlap control for intermittently forming dots on the first and second dot formation areas so as to make the second dot formation area overlap with the first dot formation area and fill spaces between the dots intermittently formed on the first dot formation area; and a cancellation section that cancel the overlap control when a blank area exists in an image and a nozzle forming at least one of the first dot formation area and the second dot formation area. | 10-08-2009 |
| 20090284559 | Liquid ejecting apparatus and method of ejecting liquid - A liquid ejecting apparatus includes a liquid supplying unit that supplies the liquid, a head unit that has a nozzle row, in which a plurality of nozzles for ejecting the liquid is aligned, a control unit that forms a raster area, in which a plurality of ejection dots in units of the nozzle rows is aligned in a main scanning direction, an ejection amount calculating unit that calculates ejection amounts of the liquid needed for forming the ejection dots, and a division scanning unit that divides the raster area so as to be formed by performing a plurality of head scanning operations in accordance with a transitional change in the ejection amounts that is formed by aligning the ejection amounts calculated by the ejection amount calculating unit in the order in which the ejection dots in units of nozzle rows are formed. | 11-19-2009 |
| 20100060689 | PRINTING DEVICE AND PRINTING METHOD - Provided is a printing device including: a printing unit which has a plurality of nozzles for ejecting a liquid and printing an image; an inspection unit which inspects whether or not the liquid is able to be ejected from the nozzles; and a controller which divides each pixel of image data into a plurality of pixels, and allows the printing unit to perform printing if at least one of at least a predetermined number of nozzles corresponding to each pixel of the image data is able to eject the liquid in the inspected result of the inspection unit, when dots are formed using at least the predetermined number of nozzles with respect to the plurality of divided pixels. | 03-11-2010 |
| 20100220140 | RECORDING APPARATUS AND TRANSPORTING METHOD - A recording apparatus of this invention includes a head; a transport mechanism that transports a medium in a transport direction with respect to the head, according to a target transport amount to be targeted; a memory that stores a plurality of correction values associated with a relative position of the head and the medium; and a controller that controls the transport mechanism based on the target transport amount that has been corrected, after correcting the target transport amount based on correction values, which are in number according to a size of the target transport amount, and which include the correction value according to the relative position when transporting by the target transport amount. | 09-02-2010 |
| 20110025744 | LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes: a first nozzle row in which first nozzles ejecting a first liquid are arranged in a predetermined direction; a second nozzle row in which second nozzles ejecting a second liquid are arranged in the predetermined direction; a movement mechanism moving the first and second nozzle rows in a movement direction intersecting the predetermined direction relative to a medium; a transport mechanism transporting the medium in the predetermined direction relative to the first and second nozzle rows; and a control unit repeating an image forming operation of ejecting the liquids from the first and second nozzles while moving the first and second nozzle rows in the movement direction by the movement mechanism and a transport operation of transporting the medium in the predetermined direction relative to the first and second nozzle rows by the transport mechanism. | 02-03-2011 |
| 20110037800 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - A fluid ejecting apparatus includes a first nozzle array in which nozzles that eject a first fluid are arrayed in a predetermined direction; a second nozzle array arranged beside the first nozzle array in a moving direction orthogonal to the predetermined direction and in which nozzles that eject a second fluid are arrayed in the predetermined direction; and a control section that repeatedly performs operation for ejecting the fluids from the nozzles while relatively moving the first nozzle array, the second nozzle array, and a medium in the moving direction and operation for relatively shifting a relative position between the first nozzle array, the second nozzle array, and the medium towards one side in the predetermined direction. When performing normal image forming operation, the control section relatively shifts the relative position between the first nozzle array, the second nozzle array, and the medium towards the one side in the predetermined direction by a predetermined transporting distance. When forming a second image using the second fluid over a first image formed using the first fluid, the nozzles used for forming the second image are located towards the one side in the predetermined direction relative to the nozzles used for forming the first image. When performing image forming operation near an edge of the medium, a non-ejection nozzle included in the nozzles and from which the fluids are not ejected is located towards the one side in the predetermined direction relative to the nozzles used for forming the first image and is located towards the other side in the predetermined direction relative to the nozzles used for forming the second image. A length, in the predetermined direction, of a region to which the non-ejection nozzle belongs is an integral multiple of the predetermined transporting distance. | 02-17-2011 |
| 20110057972 | PRINTING APPARATUS AND METHOD OF CONTROLLING PRINTING APPARATUS - A printing apparatus including a first nozzle that ejects dye ink; a second nozzle that ejects pigment ink of a color that is the same as the dye ink; and a controller that controls ejection of ink from the first nozzle and the second nozzle. The controller performs a first ejection operation, in which the pigment ink is ejected from the second nozzle after the dye ink is ejected from the first nozzle, for a predetermined position on a medium and performs a second ejection operation, in which the dye ink is ejected from the first nozzle after the pigment ink is ejected from the second nozzle, for a second position on the medium. An amount of the pigment ink per unit area that is ejected in the second ejection operation is made smaller than an amount of the pigment ink per the unit area in the first ejection operation. | 03-10-2011 |
| 20110063347 | PRINTING APPARATUS AND METHOD OF CONTROLLING PRINTING APPARATUS - A printing apparatus including: first nozzles which discharge a dye ink; second nozzles which discharge a pigment ink of the same color as the dye ink; and a controller which controls the discharge of the inks from the first nozzles and the second nozzles, wherein the controller executes a first discharging operation for discharging the dye ink from the first nozzles and then discharging the pigment ink from the second nozzles at predetermined positions on a medium and executes a second discharging operation for discharging the pigment ink from the second nozzles and then discharging the dye ink from the first nozzles at positions different from the predetermined positions on the medium, and wherein a ratio of the dye ink to the pigment ink in the amount of ink discharged in the second discharging operation per unit area is less than that in the first discharging operation per unit area. | 03-17-2011 |
| 20110085000 | PRINTING APPARATUS AND PRINTING METHOD - There is provided a technique for suppressing the image quality of a printed image. A printing apparatus including: a first nozzle row in which nozzles ejecting dye ink of a certain color are arranged in a predetermined direction; a second nozzle row in which nozzles ejecting pigment ink of the certain color are arranged in the predetermined direction. | 04-14-2011 |
| 20110141173 | FLUID EJECTING APPARATUS AND FLUID EJECTING METHOD - An apparatus includes: a first nozzles for ejecting a first fluid are lined up in a predetermined direction; a second nozzles for ejecting a second fluid are lined up in the predetermined direction; and a control unit performs an ejecting operation of ejecting fluid from the nozzles, wherein the control unit forms an image on a medium in one of a first mode of forming a main image with the first fluid and a second mode of forming the main image and a background image with the second fluid to be overlapped, forms the main image using a certain nozzle group in the first nozzles when the main image is formed in the first mode, and forms the main image using the same nozzle group as the certain nozzle group when the main image is formed in the second mode. | 06-16-2011 |
