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1.发明授权Method of compensation for the effects of thermally-induced droplet size variations in ink drop printers 有权墨滴打印机中热诱导液滴尺寸变化影响的补偿方法公开(公告)号：US06213579B1
公开(公告)日：2001-04-10
申请号：US09198852
申请日：1998-11-24
IPC分类号： B41J2938
CPC分类号： B41J2/0454 , B41J2/0458 , B41J2/2128 , H04N1/4005 , H04N1/407
摘要： An apparatus and method is provided for compensating for the effects of thermally induced droplet size variations in ink-jet printers. The apparatus includes a temperature determination unit for determining the temperature of the print head, and a halftone adjustment unit configured to receive the print head temperature from the temperature determination unit and to receive image data in the form of nominal halftone values. The adjustment unit can increase or decrease the number of dots to be printed, and thereby compensate for droplet size variations, either by adjusting the nominal halftone values based upon the temperature or by adjusting a threshold array based upon the temperature. The temperature determination unit can predict the print head temperature by counting the number of dots to be printed by counting the binary halftone values fed to the swath memory.
摘要翻译： 提供了一种用于补偿喷墨打印机中热诱导液滴尺寸变化的影响的装置和方法。 该装置包括用于确定打印头的温度的温度确定单元和被配置为从温度确定单元接收打印头温度并以标称半色调值的形式接收图像数据的半色调调节单元。 调整单元可以增加或减少要打印的点数，从而通过基于温度调节标称半色调值或通过基于温度调整阈值阵列来补偿液滴尺寸变化。 温度确定单元可以通过对馈送到条带存储器的二进制半色调值进行计数来计数要打印的点数来预测打印头温度。
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公开(公告)号：US06211970B1
公开(公告)日：2001-04-03
申请号：US09198703
申请日：1998-11-24
IPC分类号： H04N152
CPC分类号： H04N1/4005 , B41J2/0454 , H04N1/40025
摘要： A binary printer for printing halftone color images on a substrate so that the determination of whether to print a dot or to not print a dot of each color ink at each pixel location is based at least in part upon an estimated temperature of the print head. The temperature of the print head may be estimated based upon direct measurement of the ambient temperature and/or direct measurement of temperature of some portion of the print head. Alternatively, the temperature of the print head may be estimated by counting the number of dots fired by the print head.
摘要翻译： 一种二进制打印机，用于在基板上打印半色调彩色图像，使得确定是否打印点或不在每个像素位置处打印每个颜色墨水的点至少部分地基于打印头的估计温度。 可以基于环境温度的直接测量和/或打印头的某些部分的温度的直接测量来估计打印头的温度。 或者，打印头的温度可以通过计算由打印头点燃的点数来估计。
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3.发明授权公开(公告)号：US06217150B1
公开(公告)日：2001-04-17
申请号：US09330586
申请日：1999-06-11
IPC分类号： B41J221
CPC分类号： B41J2/2056 , B41J2/505
摘要： A method of printing on a print medium with an ink jet printer uses a plurality of different color inks including a first color ink. A movable carriage assembly carries at least one ink cartridge. The carriage assembly is movable at a first carriage speed and a second carriage speed across the print medium in a direction transverse to an advance direction of the print medium. An image area on the print medium has a plurality of rows of pixels, with the plurality of rows being adjacent to each other in an advance direction of the print medium and extending across the print medium in a transverse direction. The carriage assembly is moved across the print medium at the first carriage speed and the print medium is simultaneously printed on in at least one pixel within one of the rows of pixels using the first color ink. The carriage assembly is also moved across the print medium at the second carriage speed and the print medium is simultaneously printed on in at least one pixel within the one row of pixels using the first color ink.
摘要翻译： 用喷墨打印机在打印介质上打印的方法使用包括第一颜色墨水的多种不同颜色的墨水。 可移动的托架组件携带至少一个墨盒。 托架组件可在与打印介质的前进方向横切的方向上以第一托架速度和第二托架速度跨越打印介质移动。 打印介质上的图像区域具有多行像素，多行在打印介质的前进方向上彼此相邻并且在横向上延伸穿过打印介质。 托架组件以第一托架速度移动穿过打印介质，并且使用第一颜色墨水将打印介质同时印刷在像素行之一内的至少一个像素中。 托架组件也以第二托架速度移动穿过打印介质，并且使用第一颜色墨水将打印介质同时印刷在一行像素内的至少一个像素中。
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4.发明授权Apparatus and method for varying print element spacing in a printing system 失效用于在打印系统中改变打印元件间距的装置和方法公开(公告)号：US06172689B2
公开(公告)日：2001-01-09
申请号：US08965989
申请日：1997-11-07
IPC分类号： B41J25308
CPC分类号： B41J25/001 , B41J2/155 , B41J25/005 , B41J2202/14
摘要： Apparatus and method controls and varies a spacing between multiple print elements, such as ink jet print orifices, in a printing system. A signal representing at least one of an advance speed of a print medium in a feed direction in the printing system and an approximate drying time of an ink after being applied to the print medium is supplied to a controller. A device, responsive to the controller, varies the spacing between at least two print elements on the basis of at least one of the advance speed of the print medium and the approximate drying time of the ink.
摘要翻译： 装置和方法在打印系统中控制和改变多个打印元件之间的间隔，例如喷墨打印孔。 表示打印系统中的进给方向上的打印介质的提前速度和施加到打印介质上的油墨的近似干燥时间中的至少一个的信号被提供给控制器。 响应于控制器的装置基于打印介质的提前速度和油墨的大致干燥时间中的至少一个来改变至少两个打印元件之间的间隔。
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5.发明申请Method And Apparatus For Printing A High Resolution Image With A Printhead In A Multi-Pass Printing Mode 审中-公开用于在多页打印模式下用打印头打印高分辨率图像的方法和装置公开(公告)号：US20090135439A1
公开(公告)日：2009-05-28
申请号：US11945366
申请日：2007-11-27
CPC分类号： G06K15/105 , H04N1/4052
摘要： A method of printing a high resolution image with a printhead in a multi-pass printing mode includes subdividing the high resolution image into a plurality of low resolution sub-images; subdividing each low resolution sub-image into a plurality of low resolution swath portions; and allocating an amount of a memory for buffer storage, the amount being only sufficient to store data corresponding to less than two of the low resolution swath portions. The method also includes, for each low resolution swath portion: halftoning each low resolution swath portion to generate a corresponding halftoned low resolution swath portion, the halftoning of each low resolution swath portion of a particular low resolution sub-image being performed independently of halftoning the low resolution swath portions of other low resolution sub-images; storing the halftoned low resolution swath portion into the amount of the memory; and printing the halftoned low resolution swath portion.
摘要翻译： 以多通打印模式打印打印头的高分辨率图像的方法包括将高分辨率图像细分为多个低分辨率子图像; 将每个低分辨率子图像细分成多个低分辨率条纹部分; 以及分配用于缓冲存储的存储器的量，该量仅足以存储对应于小于两个低分辨率条纹部分的数据。 该方法还包括：对于每个低分辨率条带部分：对每个低分辨率条纹部分进行半色调以产生相应的半色调低分辨率条纹部分，对于特定的低分辨率子图像的每个低分辨率条纹部分的半色调是独立于半色调 其他低分辨率子图像的低分辨率条纹部分; 将半色调低分辨率条纹部分存储到存储器的量中; 并打印半色调低分辨率条纹部分。
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公开(公告)号：US06363172B1
公开(公告)日：2002-03-26
申请号：US09301499
申请日：1999-04-28
IPC分类号： H04N146
CPC分类号： H04N1/52
摘要： Halftoning algorithms such as error diffusion, blue noise mask, and void and cluster mask are known to produce visually pleasing, random, homogeneously distributed patterns of dots on output devices such as color displays or printers, for example. These algorithms are extended to take advantage of the mechanisms of each that cause a homogeneous distribution of dots of one colorant to produce a substantially homogeneous distribution of dots when using multiple colorants. The number of dots of each colorant are combined to form an output dot level number of dots that is caused to be substantially homogeneously distributed.
摘要翻译： 已知半色调算法，例如误差扩散，蓝色噪声掩模，以及空白和簇掩模，例如在诸如彩色显示器或打印机的输出设备上产生视觉上令人满意的随机均匀分布的点图案。 这些算法被扩展以利用每个引导均匀分布的一种着色剂的机制，以在使用多个着色剂时产生基本均匀的点分布。 将各着色剂的点数合并形成基本上均匀分布的点的输出点数。
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公开(公告)号：US6015206A
公开(公告)日：2000-01-18
申请号：US560765
申请日：1995-11-21
CPC分类号： G06K15/102 , H04N1/58 , G06K2215/0094
摘要： In an ink jet printer, bleed between the boundaries between color and black are avoided by printing process black and black ink in an alternating pattern for the first two dots. Logic (62) determines the boundary from a bit map and issues the control signals for alternating lines (66, 68). Best results are experienced when the process black is printed before the black ink as the vehicle of the colored inks apparently supports penetration of the black ink.
摘要翻译： 在喷墨打印机中，通过以前两个点的交替图案打印黑色和黑色墨水来避免颜色和黑色之间的边界之间的渗色。 逻辑（62）从位图确定边界并发出用于交替线（66,68）的控制信号。 当黑色墨水打印出黑色墨水时，由于彩色墨水的车辆显然支持黑色墨水的穿透，所以经历了最佳的效果。
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8.发明授权Method and apparatus for color halftoning using different halftoning techniques for halftoning different dot planes 失效使用不同的半色调技术对不同点平面进行半色调的颜色半色调的方法和装置
公开(公告)号：US5930010A
公开(公告)日：1999-07-27
申请号：US594981
申请日：1996-01-31
摘要： Digital halftoning is used to reduce the number of pixel levels used to represent a multiple dot plane image to a smaller number of pixel levels for display on an output device such as an ink-jet printer. Two algorithms commonly used to halftone the dots of a given dot plane are error diffusion and ordered dither. Error diffusion produces patterns of dots that are pleasing to the human visual system but is computationally complex. Ordered dither operates quickly but produces patterns of dots that are visually objectionable. A method is taught in the present invention that employs error diffusion to halftone dot planes that contain relatively dark dots that are visually apparent, and employs ordered dither to halftone dot planes that contain relatively light dots that are not noticeable. The resulting output is pleasing to the human visual system and computed quickly.
摘要翻译： 数字半色调用于将用于表示多点平面图像的像素级数减少到更少数量的像素级，以便在诸如喷墨打印机的输出设备上显示。 通常用于对给定点平面的点进行半色调的两种算法是误差扩散和有序抖动。 错误扩散产生对人类视觉系统令人满意的点，但是计算复杂的点的图案。 有序的抖动操作迅速，但产生视觉上令人反感的点阵图案。 在本发明中教导了一种在视觉上包含相对较暗的点的半色调点平面上使用误差扩散的方法，并且使用具有不明显的相对较浅点的半色调点平面的有序抖动。 产生的结果令人满意的人类视觉系统并迅速计算。
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9.发明授权公开(公告)号：US07497538B2
公开(公告)日：2009-03-03
申请号：US11463117
申请日：2006-08-08
IPC分类号： B41J2/205
CPC分类号： H04N1/405 , B41J2/5056 , G06K15/107
摘要： A method of printing dots in an area on a page using a plurality of printing passes of a printhead over the area, includes processing continuous tone data representing an image through N halftoning iterations to generate N halftone patterns of dots for the area; and printing each individual halftone pattern of the N halftone patterns during the plurality of printing passes, with each individual halftone pattern of the N halftone patterns being printed on a different printing pass of the plurality of printing passes over the area.
摘要翻译： 一种使用该区域上的打印头的多个印刷遍印刷页面上的点的方法，包括通过N个半色调迭代处理表示图像的连续色调数据，以产生该区域的N个半色调图案; 以及在多个打印通过期间打印N个半色调图案的每个单独的半色调图案，其中N个半色调图案的每个单独的半色调图案被打印在该区域上的多个打印通过的不同打印通行上。
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公开(公告)号：US07452047B2
公开(公告)日：2008-11-18
申请号：US11425730
申请日：2006-06-22
IPC分类号： B41J2/205
CPC分类号： G06K15/107 , H04N1/4052
摘要： A method of printing dots in an area on a page using a plurality of printing passes of a printhead over the area, includes processing continuous tone data through a halftoning mechanism to generate halftone image data; and processing the halftone image data through a plurality of error diffused shingling masks, each error diffused shingling mask of the plurality of error diffused masks being used once on a particular pass of the plurality of printing passes in printing the area.
摘要翻译： 一种使用该区域上的打印头的多次印刷遍印刷在页面上的区域的方法，包括通过半色调机构处理连续色调数据以产生半色调图像数据; 以及通过多个误差扩散的带状拼接掩模处理半色调图像数据，在打印该区域时，多个误差扩散掩模的每个误差扩散着色掩模在多个打印通过的特定通过上被使用一次。
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