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公开(公告)号：US20180022128A1
公开(公告)日：2018-01-25
申请号：US15547729
申请日：2015-04-17
CPC分类号： B41J29/38 , B41J2/07 , B41J2/2146 , G06K15/107
摘要： Example implementations relate to random wave mask generation. Some examples may distribute data points in a mask area based on a probability density function. The probability density function may have a maximum probability density located at a first edge and a second edge of the mask area. Some examples may also identify a wave curve that fits the data points. The wave curve may include oscillating waveforms of varying amplitudes. Some examples may also generate a random wave mask based on the wave curve.
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公开(公告)号：US20170348990A1
公开(公告)日：2017-12-07
申请号：US15673721
申请日：2017-08-10
IPC分类号： B41J25/308 , B41J2/155 , B41J2/21 , B41J2/045 , G06K15/10 , B41J29/393
CPC分类号： B41J25/308 , B41J2/04505 , B41J2/04508 , B41J2/155 , B41J2/2132 , B41J2/2139 , B41J2/2146 , B41J29/393 , B41J2202/21 , G06K15/102 , G06K15/105 , G06K15/107
摘要： Example implementations relate to swath height error compensation. Some examples may determine a density of an image to be printed in an overlap area of a printing material. The overlap area may include target pixels capable of being printed by a first set of drop ejection elements and a second set of drop ejection elements that are redundant to the first set of drop ejection elements. Some implementations may also determine a mask to apply to the first and second set of drop ejection elements based on the determined density, and the mask may designate at least one additional drop to apply to at least one target pixel in the overlap area by at least one of the first and second set of drop ejection elements. Some implementations may also apply the mask to the first set of drop ejection elements and the second set of drop ejection elements.
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公开(公告)号：US10350880B2
公开(公告)日：2019-07-16
申请号：US15883904
申请日：2018-01-30
摘要： A method and system of controlling at least one printbar in a printing system are described. The printing system has one or more of printbars distributed along a media transport. A first image including a reference pattern is generated on a print medium with a first printbar. A pattern is then detected on the print medium. The reference pattern and the detected pattern are used to determine a position of the first image relative to a second printbar. This position is used to configure nozzle data for a second image to be generated on the print medium by the second printbar.
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公开(公告)号：US10341506B2
公开(公告)日：2019-07-02
申请号：US15949696
申请日：2018-04-10
发明人： Luis Garcia Garcia , Sergio Puigardeu Aramendia , M. Isabel Borrell Bayona , Angel Martinez Barambio
摘要： According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a colour sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the colour sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data.
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公开(公告)号：US08848251B2
公开(公告)日：2014-09-30
申请号：US13753777
申请日：2013-01-30
发明人： Sergio Puigardeu Aramendia , Ángel Martinez Barambio , M. Isabel Borrell Bayona , Luis García Garcia
CPC分类号： G06K15/1881 , H04N1/4052
摘要： A page-wide-array printer has a print unit including an array of print-heads, wherein a printing direction is defined by a relative movement between the print unit and a print medium during a printing process. The page-wide-array printer receives a continuous tone image and divides the continuous tone image into a series of slices along a printing direction. Halftone image data is generated from each of the slices using error diffusion halftoning. The error diffusion halftoning comprises processing, with regard to error diffusion, each slice pixel-by-pixel following a processing pattern mainly oriented along a main processing direction which is parallel to the printing direction. The page-wide-array printer prints the halftone image data along the printing direction.
摘要翻译： 页面阵列打印机具有包括打印头阵列的打印单元，其中在打印过程期间通过打印单元和打印介质之间的相对移动来定义打印方向。 页面宽阵列打印机接收连续色调图像，并将连续色调图像沿着打印方向分成一系列切片。 使用误差扩散半色调从每个切片生成半色调图像数据。 误差扩散半色调包括关于误差扩散，按照主要沿着与打印方向平行的主处理方向定向的处理模式逐像素处理每个切片。 页面宽阵列打印机沿打印方向打印半色调图像数据。
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公开(公告)号：US20140211221A1
公开(公告)日：2014-07-31
申请号：US13753777
申请日：2013-01-30
发明人： Sergio Puigardeu Puigardeu Aramendia , Ángel Martínez Barambio , M. Isabel Borrell Bayona , Luis García Garcia
IPC分类号： G06K15/02
CPC分类号： G06K15/1881 , H04N1/4052
摘要： A page-wide-array printer has a print unit including an array of print-heads, wherein a printing direction is defined by a relative movement between the print unit and a print medium during a printing process. The page-wide-array printer receives a continuous tone image and divides the continuous tone image into a series of slices along a printing direction. Halftone image data is generated from each of the slices using error diffusion halftoning. The error diffusion halftoning comprises processing, with regard to error diffusion, each slice pixel-by-pixel following a processing pattern mainly oriented along a main processing direction which is parallel to the printing direction. The page-wide-array printer prints the halftone image data along the printing direction.
摘要翻译： 页面阵列打印机具有包括打印头阵列的打印单元，其中在打印过程期间通过打印单元和打印介质之间的相对移动来定义打印方向。 页面宽阵列打印机接收连续色调图像，并将连续色调图像沿着打印方向分成一系列切片。 使用误差扩散半色调从每个切片生成半色调图像数据。 误差扩散半色调包括关于误差扩散，按照主要沿着与打印方向平行的主处理方向定向的处理模式逐像素处理每个切片。 页面宽阵列打印机沿打印方向打印半色调图像数据。
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公开(公告)号：US20180234558A1
公开(公告)日：2018-08-16
申请号：US15949696
申请日：2018-04-10
发明人： Luis Garcia Garcia , Sergio Puigardeu Aramendia , M. Isabel Borrell Bayona , Angel Martinez Barambio
CPC分类号： H04N1/00087 , G06K15/102 , H04N1/00023 , H04N1/00034 , H04N1/6044
摘要： According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a colour sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the colour sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data.
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公开(公告)号：US10000080B2
公开(公告)日：2018-06-19
申请号：US15547729
申请日：2015-04-17
IPC分类号： B41J2/045 , B41J2/21 , B41J29/393 , G06K15/10 , B41J29/38
CPC分类号： B41J29/38 , B41J2/07 , B41J2/2146 , G06K15/107
摘要： Example implementations relate to random wave mask generation. Some examples may distribute data points in a mask area based on a probability density function. The probability density function may have a maximum probability density located at a first edge and a second edge of the mask area. Some examples may also identify a wave curve that fits the data points. The wave curve may include oscillating waveforms of varying amplitudes. Some examples may also generate a random wave mask based on the wave curve.
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公开(公告)号：US20170334194A1
公开(公告)日：2017-11-23
申请号：US15673966
申请日：2017-08-10
CPC分类号： B41J2/04505 , B41J2/2132 , B41J2/2146
摘要： The present disclosure discloses a page wide array (PWA) printer (20) particularly but not exclusively for performing print jobs while maximizing print bar performance uniformity within the printer. The PWA printer includes a print bar which can be moved laterally and a controller which causes the print bar to laterally move from a first to a second position and causes the nozzles within the print bar to print an image while the print bar is in the second position without modifying the lateral alignment of the image.
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公开(公告)号：US20170173984A1
公开(公告)日：2017-06-22
申请号：US15310171
申请日：2014-05-21
IPC分类号： B41J25/308
CPC分类号： B41J25/308 , B41J2/04505 , B41J2/04508 , B41J2/155 , B41J2/2132 , B41J2/2139 , B41J2/2146 , B41J29/393 , B41J2202/21 , G06K15/102 , G06K15/105 , G06K15/107
摘要： Example implementations relate to swath height error compensation. Some examples may determine a density of an image to be printed in an overlap area of a printing material. The overlap area may include target pixels capable of being printed by a first set of drop ejection elements and a second set of drop ejection elements that are redundant to the first set of drop ejection elements. Some implementations may also determine a mask to apply to the first and second set of drop ejection elements based on the determined density, and the mask may designate at least one additional drop to apply to at least one target pixel in the overlap area by at least one of the first and second set of drop ejection elements. Some implementations may also apply the mask to the first set of drop ejection elements and the second set of drop ejection elements.
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