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1. 发明授权

US5600350A Multiple inkjet print cartridge alignment by scanning a reference pattern and sampling same with reference to a position encoder 失效
标题翻译：通过扫描参考图案并参考位置编码器对其进行采样，进行多个喷墨打印墨盒对齐
公开(公告)号：US5600350A
公开(公告)日：1997-02-04
申请号：US540908
申请日：1995-10-11
申请人： Keith E. Cobbs , Robert W. Beauchamp , Paul R. Sorenson
发明人： Keith E. Cobbs , Robert W. Beauchamp , Paul R. Sorenson
IPC分类号： B41J2/01 , B41J2/21 , B41J2/51 , B41J11/00 , B41J11/42 , B41J19/18 , B41J25/34 , B41J29/393 , B43L13/00
CPC分类号： B41J29/393 , B41J11/008 , B41J11/42 , B41J2/2135 , B41J25/34 , B41J19/142
摘要： An improved image registration system for a multicolor inkjet printer/plotter. The inventive system comprises a carriage assembly for retaining multiple inkjet cartridges. Each cartridge has a plurality of nozzles adapted to eject ink in response to the application of an electrical signal thereto. A first mechanism is provided for moving said carriage assembly means in a first axis. A second mechanism is provided for moving print media in a second axis transverse to the first axis, said first axis being a scan axis and said second axis being a media axis. A first position encoder senses the position of the carriage assembly in the first axis and a second position encoder senses the carriage assembly in the second axis and providing position encoder signals in response thereto. A control circuit provides electrical signals which cause the nozzles in the inkjet cartridges to eject ink onto the media and create an image thereon in response to timing signals. The inventive system includes a sensor module which optically senses the image and provides a set of sensed signals in response thereto. The sensed signals are processed to provide timing signals for use in correcting the image misregistration.
摘要翻译：一种用于多色喷墨打印机/绘图仪的改进的图像配准系统。本发明的系统包括用于保持多个喷墨墨盒的托架组件。每个墨盒具有适于响应于向其施加电信号而弹出墨水的多个喷嘴。提供了一种用于在第一轴线上移动所述托架组件装置的第一机构。第二机构用于在横向于第一轴线的第二轴线上移动打印介质，所述第一轴线是扫描轴线，所述第二轴线是介质轴线。第一位置编码器感测托架组件在第一轴线上的位置，第二位置编码器感测托架组件在第二轴线上并响应于此提供位置编码器信号。控制电路提供电信号，其使得喷墨盒中的喷嘴将墨水喷射到介质上并响应于定时信号在其上产生图像。本发明的系统包括光学感测图像并响应于此提供一组感测信号的传感器模块。所感测的信号被处理以提供用于校正图像重合失调的定时信号。

2. 发明授权

US5448269A Multiple inkjet cartridge alignment for bidirectional printing by scanning a reference pattern 失效
标题翻译：通过扫描参考图案进行双向打印的多个喷墨墨盒对齐
公开(公告)号：US5448269A
公开(公告)日：1995-09-05
申请号：US055619
申请日：1993-04-30
申请人： Robert W. Beauchamp , Paul R. Sorenson , Keith E. Cobbs
发明人： Robert W. Beauchamp , Paul R. Sorenson , Keith E. Cobbs
IPC分类号： B41J2/01 , B41J2/05 , B41J2/07 , B41J2/125 , B41J2/21 , B41J11/46 , B41J19/18 , B41J29/46 , B41J29/393
CPC分类号： B41J2/04505 , B41J11/46 , B41J2/04586 , B41J2/07 , B41J19/142
摘要： A system for correcting for a time of flight delay of a drop of ink from an inkjet printhead. The inventive system includes a first mechanism for scanning the printhead along a first axis at a first velocity. A control circuit, responsive to inkjet timing signals, causes the printhead to eject ink onto a media to create a test pattern thereon as the printhead is scanned along the first axis. A sensor optically sense the test pattern and provides a time of flight dependent phase signal in response thereto. This signal is processed to provide time of flight delay corrected inkjet timing signals for the first velocity in response to the phase signal. In a particular implementation, the processor is adapted to add an additional delay to the corrected timing signals to correct for curvature.
摘要翻译：一种用于校正来自喷墨打印头的一滴墨水的飞行时间延迟的系统。本发明的系统包括用于以第一速度沿着第一轴扫描打印头的第一机构。当打印头沿着第一轴被扫描时，响应于喷墨定时信号的控制电路使得打印头将油墨喷射到介质上以在其上产生测试图案。传感器光学地感测测试图案并响应于此提供与飞行相关的相位信号的时间。该信号被处理以响应于相位信号为第一速度提供经过修正的喷墨定时信号的飞行延迟时间。在特定实施方式中，处理器适用于向经校正的定时信号添加额外的延迟以校正曲率。

3. 发明授权

US5451990A Reference pattern for use in aligning multiple inkjet cartridges 失效
标题翻译：用于对齐多个喷墨墨盒的参考图案
公开(公告)号：US5451990A
公开(公告)日：1995-09-19
申请号：US56325
申请日：1993-04-30
申请人： Paul R. Sorenson , Keith E. Cobbs , Robert Beauchamp
发明人： Paul R. Sorenson , Keith E. Cobbs , Robert Beauchamp
IPC分类号： B41J2/01 , B41J2/07 , B41J2/21 , B41J25/34 , B41J29/46 , B41J23/00
CPC分类号： B41J25/34 , B41J2/07 , B41J2/2135
摘要： A test pattern for use with an optical sensor for an inkjet printer. The inventive pattern comprises a first plurality of vertical bars horizontally spaced and a second plurality of horizontal bars vertically spaced. The spacing between the bars is approximately equal to the width of the bars. In a particular implementation, the pattern is adapted for use with an inkjet printer having a plurality of pens. The first plurality of bars includes a first set of bars printed by each of the pens. The first plurality of bars includes a second set of bars printed by one of the pens moving at at least two different horizontal speeds. The second plurality of bars includes one column of vertically spaced bars for each of the pens. Each column of vertically spaced bars includes a first plurality of vertically spaced bars printed by a first pen. A respective column of vertically spaced bars includes a second plurality of vertically spaced bars printed by a respective one of the pens. Each column of vertically spaced bars includes a third plurality of vertically spaced bars printed by the first pen. The inventive pattern allows for considerable information with respect to pen alignments to be determined by optical scanning.
摘要翻译：用于喷墨打印机的光学传感器的测试图案。本发明的图案包括水平隔开的第一多个垂直条和垂直间隔开的第二多个水平条。条之间的间距大致等于条的宽度。在特定实施方案中，该图案适用于具有多个笔的喷墨打印机。第一多个条包括由每个笔印刷的第一组条。第一组多个杆包括由至少两个不同水平速度移动的笔之一印刷的第二组条。第二多个条包括用于每个笔的一列垂直间隔的条。每列垂直间隔的条包括由第一笔打印的第一多个垂直间隔的条。相应的垂直间隔的柱的列包括由相应的一个笔打印的第二多个垂直间隔的条。每列垂直间隔的条包括由第一笔打印的第三多个垂直间隔的条。本发明的图案允许通过光学扫描确定相对于笔对准的相当多的信息。

4. 发明授权

US5404020A Phase plate design for aligning multiple inkjet cartridges by scanning a reference pattern 失效
标题翻译：通过扫描参考图案对准多个喷墨墨盒的相位板设计
公开(公告)号：US5404020A
公开(公告)日：1995-04-04
申请号：US55620
申请日：1993-04-30
申请人： Keith E. Cobbs
发明人： Keith E. Cobbs
IPC分类号： B41J2/01 , B41J2/125 , B41J2/21 , B41J11/00 , B41J11/46 , B41J21/16 , B41J25/34
CPC分类号： B41J21/16 , B41J11/001 , B41J11/46 , B41J2/2135 , B41J25/34
摘要： A phase plate adapted for use with an optical sensor module for an inkjet printer/plotter equipped with a photodetector to sense a test pattern having a plurality of horizontally spaced bars or vertically spaced bars and a photodetector. The inventive phase plate is in optical alignment with the photodetector and is constructed of opaque material. The phase plate includes a plurality of apertures horizontally spaced therein. The spacing between the apertures is equal to the spacing between the horizontally spaced bars in said test pattern. In the alternative, the plate may include a plurality of apertures vertically spaced therein. In this case, the spacing between the apertures is equal to the spacing between the vertically spaced bars in the test pattern. In a particular implementation, the phase plate includes both horizontally spaced apertures and vertically spaced apertures. In this case, the horizontal spacing between the apertures is equal to the spacing between the horizontally spaced bars in the test pattern and the spacing between the vertically spaced apertures is equal to the spacing between the vertically spaced bars in the test pattern.
摘要翻译：一种适用于配备有光电检测器的喷墨打印机/绘图仪的光学传感器模块的相位板，用于感测具有多个水平间隔的条或垂直间隔的条的测试图案和光电检测器。本发明的相位板与光电检测器光学对准并且由不透明材料构成。相位板包括水平间隔开的多个孔。孔之间的间距等于所述测试图案中水平间隔的条之间的间距。在替代方案中，板可以包括在其中垂直间隔开的多个孔。在这种情况下，孔之间的间距等于测试图案中垂直间隔的条之间的间距。在特定的实施方案中，相位板包括水平隔开的孔和垂直隔开的孔。在这种情况下，孔之间的水平间距等于测试图案中的水平间隔的条之间的间隔，并且垂直间隔开的孔之间的间距等于测试图案中垂直间隔的条之间的间隔。

5. 发明授权

US4922270A Inter pen offset determination and compensation in multi-pen thermal ink jet pen printing systems 失效
标题翻译：多笔热喷墨笔印刷系统中的笔偏移确定和补偿
公开(公告)号：US4922270A
公开(公告)日：1990-05-01
申请号：US304980
申请日：1989-01-31
申请人： Keith E. Cobbs , Robert D. Haselby , William S. Osborne
发明人： Keith E. Cobbs , Robert D. Haselby , William S. Osborne
IPC分类号： B41J2/07 , B41J2/21 , B41J25/34 , G01D15/18
CPC分类号： G01D15/18 , B41J2/07 , B41J2/125 , B41J2/2135 , B41J25/34
摘要： Apparatus for determining inter-pen offsets in a multiple pen ink jet printer including a drop detector for measuring flight time of ink drops, an aperture plate disposed in the print media plane, and a carriage position sensor for determining carriage position when ink drop flight time exceeds a predetermined value, which indicates that an ink jet is at the edge of the aperture plate. The sensed carriage positions for the respective pens provides information indicative of inter-pen offset in the scan axis direction. In a further embodiment of the invention, the aperture plate can have a stair-shaped boundary to facilitate the calibration of a plurality of nozzles in one scan. For determination of inter-pen offset in the media scan direction, the aperture includes a comb-like boundary that is utilized to produce the detect/no detect pattern for a nozzle array in each of the pens, whereby the pattern for each of the pens provides information indicative of the offset between pens.
摘要翻译：用于确定多笔喷墨打印机中的笔间偏移的装置，包括用于测量墨滴的飞行时间的墨滴检测器，设置在打印介质平面中的孔板，以及用于在墨滴飞行时间时确定托架位置的托架位置传感器超过预定值，这表示喷墨处于孔板的边缘。感测到的各笔的托架位置提供指示扫描轴方向的笔间偏移的信息。在本发明的另一实施例中，孔板可以具有阶梯形边界以便于在一次扫描中校准多个喷嘴。为了确定介质扫描方向上的笔间偏移，孔径包括梳状边界，其用于产生每个笔中的喷嘴阵列的检测/无检测图案，由此每个笔的图案提供指示笔之间偏移的信息。

6. 发明授权

US5109239A Inter pen offset determination and compensation in multi-pen ink jet printing systems 失效
标题翻译：多笔喷墨打印系统中的笔偏移确定和补偿
公开(公告)号：US5109239A
公开(公告)日：1992-04-28
申请号：US490022
申请日：1990-03-07
申请人： Keith E. Cobbs , Robert D. Haselby , William S. Osborne
发明人： Keith E. Cobbs , Robert D. Haselby , William S. Osborne
IPC分类号： B41J2/07 , B41J2/21 , B41J25/34 , G01D15/18
CPC分类号： G01D15/18 , B41J2/07 , B41J2/125 , B41J2/2135 , B41J25/34
摘要： Apparatus for determining inter-pen offsets in a multiple pen ink jet printer including a drop detector for measuring flight time of ink drops, an aperture plate disposed in the print media plane, and a carriage position sensor for determining carriage position when ink drop flight time exceeds a predetermined value, which indicates that an ink jet is at the edge of the aperture plate. The sensed carriage positions for the respective pens provides information indicative of inter-pen offset in the scan axis direction. In a further embodiment of the invention, the aperture plate can have a stair-shaped boundary to facilitate the calibration of a plurality of nozzles in one scan. For determination of inter-pen offset in the media scan direction, the aperture includes a comb-like boundary that is utilized to produce detect/no detect pattern for a nozzle array in each of the pens, whereby the pattern for each of the pens provides information indicative of the offset between pens.
摘要翻译：用于确定多笔喷墨打印机中的笔间偏移的装置，包括用于测量墨滴的飞行时间的墨滴检测器，设置在打印介质平面中的孔板，以及用于在墨滴飞行时间时确定托架位置的托架位置传感器超过预定值，这表示喷墨处于孔板的边缘。感测到的各笔的托架位置提供指示扫描轴方向的笔间偏移的信息。在本发明的另一实施例中，孔板可以具有阶梯形边界以便于在一次扫描中校准多个喷嘴。为了确定介质扫描方向上的笔间偏移，孔径包括梳状边界，其用于产生每个笔中的喷嘴阵列的检测/无检测图案，由此每个笔的图案提供指示笔之间偏移的信息。

7. 发明授权

US5250956A Print cartridge bidirectional alignment in carriage axis 失效
标题翻译：打印墨盒在托架轴上双向对齐
公开(公告)号：US5250956A
公开(公告)日：1993-10-05
申请号：US785651
申请日：1991-10-31
申请人： Robert D. Haselby , Michael A. Nguyen , Keith E. Cobbs
发明人： Robert D. Haselby , Michael A. Nguyen , Keith E. Cobbs
IPC分类号： B41J2/01 , B41J2/255 , B41J2/51 , B41J3/54 , B41J11/46 , B41J19/14 , B41J19/18 , B41J21/16 , B41J25/304 , B41J29/42 , G01D15/16 , B41J29/26
CPC分类号： B41J19/145 , B41J11/46 , B41J21/16 , B41J19/142
摘要： Apparatus and techniques are disclosed for aligning the operation of the ink jet printheads of a multiple printhead ink jet swath printer, and particularly for aligning the operation of the printheads along the carriage scan axis. The relative positions of vertical test line segments printed by the cartridges at a fixed swath position are determined with an optical sensor. The relative position information is utilized to calculate horizontal alignment corrections for the printhead cartridges which are utilized to adjust the horizontal offset shifts provided for the swath data and to adjust the timing of the firing of the ink jet nozzles of the printhead cartridges.

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