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公开(公告)号：US11919319B2
公开(公告)日：2024-03-05
申请号：US17360333
申请日：2021-06-28
发明人： Kohei Utsunomiya , Satoshi Yamazaki , Nobuaki Ito
IPC分类号： B41J2/205 , B41J2/01 , B41J2/07 , B41J2/155 , B41J2/21 , B41J3/407 , B41J19/14 , H04N1/405 , B41J29/393
CPC分类号： B41J2/2054 , B41J2/01 , B41J2/07 , B41J2/155 , B41J2/2132 , B41J3/4073 , B41J19/145 , H04N1/4051 , B41J29/393
摘要： Wherein, in the first dither mask, when the first space is cut by the first plane, a plurality of threshold values in the first plane has a blue noise characteristic in the spatial frequency domain, and when the first space is cut by a second plane extending in a direction different from that of the first plane, a plurality of threshold values in the second plane has a blue noise characteristic in the spatial frequency domain.
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公开(公告)号：US11840077B2
公开(公告)日：2023-12-12
申请号：US17322581
申请日：2021-05-17
发明人： Yusuke Kiyokawa , Masashi Negishi
IPC分类号： B41J2/045 , B41J2/14 , B41J25/308 , B41J19/14
CPC分类号： B41J2/04561 , B41J2/04558 , B41J2/04586 , B41J19/145 , B41J25/3088
摘要： In a state where a distance from an ejection port surface of an ejection head to a predetermined position corresponds to a first distance, a period detection unit detects a first period from when ejection of a droplet from an ejection port is started until when a droplet detection unit detects the droplet, and in a state where the distance from the ejection port surface of the ejection head to the predetermined position is changed to a second distance by a change unit, the period detection unit detects a second period from when ejection of a droplet from the ejection port is started until when the droplet detection unit detects the droplet, the second distance being different from the first distance. A calculation unit calculates an ejection speed of the droplet, based on the first distance, the second distance, the first period, and the second period.
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公开(公告)号：US09981467B2
公开(公告)日：2018-05-29
申请号：US15307466
申请日：2014-07-25
CPC分类号： B41J2/04558 , B41J19/142 , B41J19/145 , G06K15/102 , G06K15/1822 , H04N1/4051 , H04N1/4092
摘要： A method of printing includes identifying vertical edges in a halftone image. The method also includes determining whether a lightness of color of a first predetermined area to a left side of a respective vertical edge is substantially equal to, less than, or greater than the lightness of color of a second predetermined area to a right side of the respective vertical edge. The method also includes categorizing respective vertical edges left vertical edges, right vertical edges, and neutral vertical edges to prioritize a print direction thereof.
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公开(公告)号：US20180126749A1
公开(公告)日：2018-05-10
申请号：US15697387
申请日：2017-09-06
发明人： Daniel Lau
CPC分类号： B41J3/543 , B41J2/04518 , B41J2/07 , B41J2/2132 , B41J2/2146 , B41J19/145 , G06K15/107 , G06K15/1223 , G06T3/0012 , H04N1/4078 , H04N1/56 , H04N1/58
摘要： A method of printing an image using a printing system having first and second overlapping printhead segments. The method includes the steps of: (i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments; (ii) determining a continuous seam in the strip based on a cost function, the cost function including a parameter selected from the group consisting of: (a) minimizing a density of printed ink along the seam; and (b) maximizing a luminance along the seam; and (iii) printing the image using the first and second printhead segments, the printing including stitching the first and second printhead segments across the seam. The strip contains variable image content and the seam has a varying position within the strip.
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5.发明授权公开(公告)号：US09950515B2
公开(公告)日：2018-04-24
申请号：US15527385
申请日：2015-11-11
申请人： Konica Minolta, Inc.
发明人： Masaru Iida
CPC分类号： B41J2/04505 , B41J2/01 , B41J2/04573 , B41J2/2132 , B41J2/2135 , B41J19/145 , B41J2029/3935 , G03G2215/00561 , G03G2215/00599 , H04N1/6033 , H04N1/6038 , H04N1/6044
摘要： An information processing device performs processing of specifying a positional relationship between a first printing section and a second printing section based on image capturing data of a test image that is printed on a printing medium by the first printing section and the second printing section in each of which a plurality of printing elements are arranged. The test image includes a plurality of first lines which are printed by the first printing section so as to have printing positions different from each other in a line arrangement direction on the printing medium and a plurality of second lines which are printed by the second printing section so as to have printing positions different from each other in the line arrangement direction. The information processing device contains a printing coordinate acquisition section, a printing position acquisition section, and a positional shift amount calculation section.
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公开(公告)号：US20170120642A1
公开(公告)日：2017-05-04
申请号：US15333666
申请日：2016-10-25
发明人： Mayuko Yamagata , Satoshi Seki , Hirokazu Tanaka , Gou Sasaki , Tsukasa Doi , Fumiko Suzuki , Kiichiro Takahashi
IPC分类号： B41J25/00
CPC分类号： B41J2/2125 , B41J2/2132 , B41J19/145
摘要： Driving orders of driving blocks are controlled with regard to each of multiple types of ink so that landing positions of ink from the driving blocks differ in multiple scans, and in the mask patterns used, there is a relatively small number of superimposed pixels among pixels regarding which a large number of discharge permitted has been stipulated regarding a mask pattern corresponding to one type of ink and one scan and pixels regarding which a large number of discharge permitted has been stipulated regarding a mask pattern corresponding to another type of ink and the one scan.
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公开(公告)号：US20170120640A1
公开(公告)日：2017-05-04
申请号：US15292290
申请日：2016-10-13
发明人： Masahisa OTAKE
IPC分类号： B41J25/00
CPC分类号： B41J25/006 , B41J2/2132 , B41J19/142 , B41J19/145 , G06K15/107
摘要： A printing apparatus includes a carriage unit, and carries out printing on a recording medium while transporting the recording medium. The carriage unit includes a first head that discharges an ink and a second head that discharges an ink of the same color, and the second head is disposed so as to be adjacent to the first head in an x axis direction, and to overlap with the first head in a y axis direction. In an outgoing path in the reciprocation of the carriage unit, a printing density of a first image, which the first head prints, gradually decreases toward a downstream side in a transport direction of the recording medium, and the first image includes a dot group, in which at least two dots formed using the ink from the first nozzles are linked to one another in the x axis direction. In addition, in a return path in the reciprocation of the carriage unit, the second nozzles print a second image, which supplements a decrease in the printing density of the first image.
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公开(公告)号：US20170120582A1
公开(公告)日：2017-05-04
申请号：US15337731
申请日：2016-10-28
发明人： Eishin YOSHIKAWA
IPC分类号： B41J2/045
CPC分类号： B41J2/04558 , B41J2/04586 , B41J2/2135 , B41J19/142 , B41J19/145 , B41J2029/3935 , G06K15/027
摘要： Provided is a dot recording apparatus in which a first dot group is formed using a first nozzle group, a second dot group is formed using a second nozzle group, a third dot group is formed using a third nozzle group, of which the distance from the first nozzle group in a direction is a first nozzle row distance, a fourth dot group is formed using a fourth nozzle group, of which the distance from the second nozzle group in a direction is a second nozzle row distance, which differs from the first nozzle row distance, and inclination of the main scanning direction and a nozzle row are calculated on the basis of a distance in the main scanning direction from the first dot group up to the third dot group, and a distance in the main scanning direction from the second dot group up to the fourth dot group.
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公开(公告)号：US20170113456A1
公开(公告)日：2017-04-27
申请号：US15397090
申请日：2017-01-03
发明人： Lucas D. Barkley , Stephen T. Olson
CPC分类号： B41J2/2132 , B41J2/04535 , B41J2/04586 , B41J2/21 , B41J2/2121 , B41J2/2135 , B41J2/51 , B41J19/142 , B41J19/145 , B41J19/147 , B41J25/005 , B41J29/393
摘要： An imaging apparatus includes a print engine having a printhead that generates ink drops, and a printhead carrier that carries the printhead in a first direction and in a second direction. A controller determines an initial print direction based on ink drop information obtained by printing patches in the first direction and in the second direction. The controller is operatively coupled to the print engine to print an image based on the initial print direction.
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公开(公告)号：US09533513B1
公开(公告)日：2017-01-03
申请号：US14817636
申请日：2015-08-04
发明人： Li Qian
IPC分类号： B41J2/21 , B41J19/14 , B41J29/393
CPC分类号： B41J2/2135 , B41J2/2132 , B41J19/142 , B41J19/145 , B41J29/393
摘要： A system, method and non-transitory computer readable medium for testing the alignment of a bidirectional scanning print system are described. A first swathe is printed in first direction, and a second swathe is printed after the first in a second direction along a print axis. Each swathe comprises a plurality of printed blocks aligned along the print axis, separated by unprinted bars. Misalignment in the print system can be identified from the print output.
摘要翻译： 描述了用于测试双向扫描打印系统的对准的系统，方法和非暂时计算机可读介质。 在第一方向上打印第一片，并且沿第一方向沿着打印轴在第二方向上印刷第二片。 每个包括沿着打印轴对准的多个印刷块，由未打印的条分开。 可以从打印输出识别打印系统中的未对准。
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