| 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 |
| 20090085959 | Liquid ejecting apparatus and raster line forming method - An increase in the width in the first direction of the head unit is controlled and deterioration in image quality is curbed as well. A liquid ejecting apparatus according to the invention is a liquid ejecting apparatus including: a head unit that has a plurality of heads along a first direction, in which a plurality of nozzles that eject a liquid onto a medium are lined up in the first direction, and that ejects the liquid while moving relative to the medium in a second direction, which intersects the first direction, the head unit having a width in the first direction that is greater than a width of the medium in the first direction, a movement mechanism that makes the head unit move relative to the medium a plurality of times alternately in the second direction and the first direction, and a control section that forms a raster line group by forming each raster line by making two or more different nozzles that are different eject the liquid, respectively while making the movement mechanism move the head unit relative to the medium a plurality of times alternately in the second direction and the first direction, makes the movement mechanism move the head unit relatively so that a total amount of movement of the head unit in the first direction when the head unit has moved relatively the plurality of times is less than an effective nozzle width of one of the heads in the first direction, and forms the raster line group so that a number of the raster lines formed by making the nozzles of only one of the heads eject the liquid is not greater than a number of the raster lines formed by making the nozzles of two or more of the heads eject the liquid. | 04-02-2009 |
| 20090096828 | Liquid ejecting apparatus and method for moving medium - A liquid ejecting apparatus includes an upstream-side roller and an downstream-side roller, an ejecting section, and a controller. The controller stores in advance a correction value for correcting a pre-correction target transport amount for transporting the medium, the correction value being associated with a range from a first position to a second position. The controller carries out the transport operation based on a post-correction target transport amount in the case where the controller carries out the transport operation in such a manner as the medium is transported from a third position upstream in the transport direction from the second position to a fourth position downstream in the transport direction from the first position and the third position, the post-correction target transport amount being obtained by correcting, using the correction value, the pre-correction target transport amount for transporting the medium from the third position to the fourth position. | 04-16-2009 |
| 20090115805 | Liquid ejecting apparatus and image forming method - A liquid ejecting apparatus includes a head unit, a movement mechanism, and a control section. The head unit has along a first direction a plurality of heads, in which a plurality of nozzles that eject a liquid onto a medium are lined up in the first direction, and the head unit forms a single raster line by ejecting the liquid while performing m number of movements relative to the medium in a second direction, which intersects the first direction. A width of the head unit in the first direction is greater than a width of the medium in the first direction. The movement mechanism causes the head unit to perform a plurality of movements relative to the medium alternately in the second direction and the first direction. The control section forms an image having a resolution that is n times a pitch of the nozzles, by forming a plurality of the raster lines by the plurality of relative movements of the head unit. Further, the control section sets a total movement amount of the head unit in the first direction when the head unit performs the plurality of relative movements, larger than an effective nozzle width of one of the heads in the first direction multiplied by (m×n−1), and smaller than the effective nozzle width×(m×n). Furthermore, the control section forms the image by setting respective movement amounts of the head unit in the first direction when the head unit performs the plurality of relative movements, larger than the effective nozzle width. | 05-07-2009 |
| 20090122108 | Liquid ejecting apparatus and transport method - A liquid ejecting apparatus has a head, a transport mechanism, a memory, and a controller. The head ejects a liquid. The transport mechanism transports a medium in a transport direction with respect to the head in accordance with a target transport amount that is targeted. The memory stores a plurality of correction values, each of the correction values being associated with a relative position between the head and the medium, a range of the relative position to which that correction value is to be applied being associated with that correction value. In the case where a transport using the target transport amount is performed beyond the range of the relative position associated with the correction value that is associated with the relative position before the transport, the controller corrects the target transport amount based on the correction value associated with the relative position before the transport and the correction value associated with the relative position after the transport. | 05-14-2009 |
| 20090167806 | Recording apparatus and transport amount correcting method - To perform transport by correcting the transport amount while modifying the relative position of a correction value applied for transport of a medium. | 07-02-2009 |
| 20090237689 | Concentration correcting method - A concentration correcting method includes: forming N test patterns at different positions in a moving direction by repeatedly performing a dot line forming process of forming a dot line in a line region on a test medium in which a plurality of unit areas is arranged in the moving direction by ejecting liquid from nozzles direction and a transport process of transporting the test medium in a transport direction; performing on the N test patterns a process of calculating a concentration correction value, which is used to correct concentrations of the unit areas in a print image; and correcting the concentrations of the unit areas in the print image by the use of interpolated correction values obtained using a linear interpolation method, two concentration correcting values acquired from the two test patterns, and positions of the unit areas in the moving direction. | 09-24-2009 |
| 20090244605 | Printing method and printing apparatus - There is provided a method of printing a plurality of printing materials on a medium for producing a printing material in which a second image is printed on a first image. The method includes alternately repeating printing the first image in a first area included in a print area and printing the second image in a second area that is included in the print area and is located on the downstream side of the first area in the transport direction, based on image data that includes the first image and the second image that are printing targets, and transporting the first image that is printed in the first area to the second area. | 10-01-2009 |
| 20090267984 | Liquid Ejection Apparatus and Method for Forming Pattern - A liquid ejection apparatus includes an ejecting section, an upstream-side transport roller, a downstream-side transport roller, and a control section. The ejecting section ejects liquid onto a medium. The upstream-side transport roller is positioned closer to an upstream side than the ejecting section in a transport direction of the medium, and the downstream-side transport roller is positioned closer to a downstream side than the ejecting section. The upstream-side transport roller and the downstream-side transport roller transport the medium in cooperation with each other by rotating. The control section forms a first pattern by causing the ejecting section to eject the liquid onto the medium in case that an upstream-side end section of the medium in the transport direction is sandwiched with a sandwich section of the upstream-side transport roller. Besides, the control section causes the upstream-side transport roller and the downstream-side transport roller to transport the medium until the upstream-side end section of the medium on which the first pattern is formed becomes positioned closer to the downstream side than the sandwich section in the transport direction and ceases to be sandwiched with the sandwich section, and forms a second pattern by causing the ejecting section to eject the liquid onto the medium the upstream-side end section of which is not sandwiched with the sandwich section. | 10-29-2009 |
| 20090278882 | Method of calculating correction value, method of ejecting liquid, and liquid ejecting apparatus - A method of calculating a correction value includes: forming a test pattern by ejecting a liquid by a liquid ejecting apparatus, which has a first nozzle row in which a plurality of nozzles ejecting the liquid to a medium are arranged in a predetermined direction and a second nozzle row in which a plurality of nozzles ejecting the liquid to the medium are arranged in the predetermined direction, the second nozzle row being disposed so that an end portion on one side thereof in the predetermined direction overlaps with an end portion on the other side of the first nozzle row in the predetermined direction, to an area of the medium corresponding to certain pixel data on the basis of the certain pixel data from first nozzles belonging to the end portion on the other side of the first nozzle row and second nozzles belonging to the end portion on the one side of the second nozzle row; acquiring a read-out gray scale value by allowing a scanner to read-out the test pattern; and calculating a correction value used to correct the pixel data corresponding to the area to which the liquid is ejected from the first and the second nozzles on the basis of the read-out gray scale value. | 11-12-2009 |
| 20090295856 | Method for producing printed patterns, printing apparatus, and method for printing - Disclosed is a method for producing a plurality of printed patterns on a continuous medium. The method includes selecting either of a first print mode and a second print mode on the basis of a printing condition, alternately repeating an operation of printing a plurality of first images on the continuous medium located in a printing zone and printing a plurality of second images on the first images after a lapse of waiting time and an operation of transporting the continuous medium when the first print mode is selected, and alternately repeating an operation of printing the first images on the continuous medium located in a first area of the printing zone and printing the second images on the continuous medium located in a second area, downstream of the first area in the transporting direction in which the medium is transported, of the printing zone and an operation of transporting the first images printed in the first area to the second area so that the second images are printed on the first images when the second print mode is selected. | 12-03-2009 |
| 20100005991 | PRINTING PRODUCT MANUFACTURING METHOD AND PRINTING PRODUCT MANUFACTURING APPARATUS AND PRINTING METHOD - A printing product manufacturing method of printing a plurality of printing products on a medium includes: generating first and second images on the basis of a printing target image; printing the first image in a first area of a print area and printing the second image in a second area of the print area on the downstream side of the first area in a transport direction; and transporting the first image printed in the first area to the second area, wherein the printing products in which the printing target image is printed on the medium are manufactured by alternately repeating the printing and the transporting. | 01-14-2010 |
| 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 |
| 20100245871 | METHOD OF CORRECTING PIXEL DATA AND FLUID EJECTING APPARATUS - A method for correcting pixel data and a fluid ejecting apparatus and are disclosed. The method for correcting pixel data in the fluid ejecting apparatus which relatively moves a nozzle array having nozzles for ejecting a fluid onto a medium and arranged in parallel in a predetermined direction, and the medium in a direction intersecting the predetermined direction, onto which the fluid is ejected from the nozzle array based on pixel data of the first number of gradations, while the nozzle array and the medium are relatively moved in the intersecting direction, the method includes converting original pixel data of the first number of gradations into pixel data of the second number of gradations higher than the first number of gradations; correcting the pixel data of the second number of gradations, of which the number of gradations is converted, by a correction value set for every pixel line data which is the plurality of pixel data lined up in a direction corresponding to the intersecting direction on the pixel data; and converting the pixel data of the second number of gradations which is corrected by the correction value into the pixel data of the first number of gradations. | 09-30-2010 |
| 20100253728 | CORRECTION VALUE CALCULATING METHOD AND METHOD OF MANUFACTURING LIQUID EJECTING APPARATUS - There is provided a method of calculating a correction value in a liquid ejecting apparatus in which a plurality of heads is arranged in a predetermined direction and each of the heads has a nozzle row in which nozzles ejecting a liquid on a medium are arranged in the predetermined direction. The method includes: forming a first and second pattern by a first and second operation; and calculating, on the basis of the first pattern, a first correction value and, on the basis of the first and second patterns, a second correction valve to line up a landed position of the liquid ejected in the first operation and the second operation. | 10-07-2010 |
