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11. 发明授权

US5534895A Electronic auto-correction of misaligned segmented printbars 失效
标题翻译：电子自动纠正未对齐的分段打印纸
公开(公告)号：US5534895A
公开(公告)日：1996-07-09
申请号：US269319
申请日：1994-06-30
申请人： William M. Lindenfelser , Frederick A. Donahue
发明人： William M. Lindenfelser , Frederick A. Donahue
IPC分类号： B41J2/05 , B41J2/12 , B41J2/21 , B41J2/51 , B41J29/393
CPC分类号： B41J2/04505 , B41J2/04506 , B41J2/0458 , B41J2/2135 , B41J29/393 , B41J19/142
摘要： A method and apparatus for automatically adjusting the quality of printing made by a scanning type printhead or printbar upon a recording medium advanced perpendicularly to the scanning direction. The scanning printbar includes sequentially printed segments in which the dots or pixels in a segment are printed simultaneously. A source of illumination is passed across a test pattern having features indicative of printhead alignment and discernible under the illumination. The source of illumination is connected to circuitry with determines the variation in light intensity of the test pattern. A value indicative of the misalignment is calculated and used to correct the timing of firing signals between the sequentially fired banks of nozzles of a printbar.
摘要翻译：一种用于自动调整由扫描型打印头或打印机在垂直于扫描方向前进的记录介质上进行打印质量的方法和装置。扫描打印条包括顺序打印的段，其中片段中的点或像素同时被打印。照明源通过具有指示打印头对准并且在照明下可辨别的特征的测试图案。照明源连接到电路，确定测试图案的光强度的变化。计算表示不对准的值，并用于校正打印条的顺序喷射的喷嘴组之间的点火信号的定时。

12. 发明授权

US5402156A Slow scan stitching mechanism 失效
标题翻译：缓慢扫描缝合机制
公开(公告)号：US5402156A
公开(公告)日：1995-03-28
申请号：US905608
申请日：1992-06-29
申请人： Frederick A. Donahue , Paul J. Rowe
发明人： Frederick A. Donahue , Paul J. Rowe
IPC分类号： B41J19/20 , F16H31/00 , G01D15/16 , B41J19/06
CPC分类号： B41J19/20
摘要： A translatable information transfer device, such as ink jet printhead, is stepwise advanced by a mechanism consisting of a lead screw axially spring biased at one end, cam surface provided at the other end of the lead screw, fixed cam follower which engages the cam surface, and a carrier for the information transfer device mounted on the lead screw with cooperating internal threads. Rotation of the lead screw does not advance the carrier having the information transfer device until after one complete revolution of the lead screw, whereupon the cam surface and cam follower permit the information transfer device to axially advance a predetermined distance, such as, for example, one printing swath.
摘要翻译：诸如喷墨打印头之类的可翻译的信息传送装置通过一个机构来逐步推进，所述机构由一端偏置的导螺杆轴向弹簧，在该导螺杆的另一端设置的凸轮表面，与凸轮表面接合的固定凸轮从动件以及安装在具有配合的内螺纹的导螺杆上的信息传送装置的载体。导螺杆的旋转不会使具有信息传送装置的载体前进，直到导螺杆旋转一整圈后，凸轮面和凸轮从动件允许信息传送装置轴向前进预定距离，例如，一个印刷条。

13. 发明授权

US5349905A Method and apparatus for controlling peak power requirements of a printer 失效
标题翻译：用于控制打印机峰值功率要求的方法和装置
公开(公告)号：US5349905A
公开(公告)日：1994-09-27
申请号：US43615
申请日：1993-04-05
申请人： Thomas N. Taylor , Frederick A. Donahue
发明人： Thomas N. Taylor , Frederick A. Donahue
IPC分类号： B41J11/00 , B41L35/14
CPC分类号： B41J11/0085 , B41J11/002 , B41J11/007
摘要： A thermal ink jet printer incorporates a copy speed feed control for reducing peak power requirements. Printing data supplied to the printer is scanned to determine image density or power consumption to dry ink in a dryer is determined. The speed of the sheet transport system is controlled in accordance with the image density so that, at high image densities, the speed of the sheet at the printer and/or at the dryer is reduced. A controller controls the speed of a drive motor driving the transport system in accordance with a determination of the density of the printed image from image print data or energy required for ink drying. A printer employing on-demand workstations having potentially high peak power usages can be made compatible with conventionally provided power supply systems.
摘要翻译：热敏式喷墨打印机结合了一种降低峰值功率要求的复印速度进给控制。扫描提供给打印机的打印数据，以确定影像密度或烘干机中干油墨的耗电量。纸张传送系统的速度根据图像浓度来控制，使得在高图像浓度下，打印机和/或烘缸处的片材的速度降低。根据从油墨干燥所需的图像打印数据或能量确定打印图像的浓度，控制器控制驱动传送系统的驱动电机的速度。具有潜在的高峰值功率使用的按需工作站的打印机可以与常规提供的电源系统兼容。

14. 发明申请

US20090322822A1 DROP VOLUME COMPENSATION FOR INK SUPPLY VARIATION 有权
标题翻译：油墨供应变化下降体积补偿
公开(公告)号：US20090322822A1
公开(公告)日：2009-12-31
申请号：US12146641
申请日：2008-06-26
申请人： Gary A. Kneezel , R. Winfield Trafton , Frederick A. Donahue
发明人： Gary A. Kneezel , R. Winfield Trafton , Frederick A. Donahue
IPC分类号： B41J29/38
CPC分类号： B41J2/17513 , B41J2/04535 , B41J2/0456 , B41J2/0458 , B41J2/04588 , B41J2/1752 , B41J2/17523 , B41J2/17556
摘要： The present invention relates to a method that enables image quality of a printed image to be maintained by reducing unintended variations in drop volume, through the adjustment of ink drop ejecting conditions depending on the amount of ink remaining in an ink tank chamber or reservoir, and/or the ink demand for printing an image. The method of printing of the present invention comprises: providing a printhead in fluid communication with an ink chamber or reservoir; detecting at least one parameter related to an amount of negative pressure provided to the printhead; and adjusting an ink drop ejecting condition of the printhead as a function of the parameter so that an amount of variation in size of ejected ink drop is reduced.
摘要翻译：本发明涉及通过根据墨罐室或储存器中残留的墨量调整墨滴喷射条件，通过减少墨滴体积的非预期变化来保持打印图像的图像质量的方法，以及 /或打印图像的墨水需求。本发明的印刷方法包括：提供与墨水室或储存器流体连通的打印头; 检测与提供给打印头的负压量有关的至少一个参数; 以及根据参数来调整打印头的墨滴喷射状态，使得喷射墨滴的尺寸变化量减小。

15. 发明申请

US20090322806A1 METHOD OF PRINTING FOR INCREASED INK EFFICIENCY 审中-公开
标题翻译：打印提高墨水效率的方法
公开(公告)号：US20090322806A1
公开(公告)日：2009-12-31
申请号：US12146484
申请日：2008-06-26
申请人： Frederick A. Donahue , R. Winfield Trafton , Gary A. Kneezel
发明人： Frederick A. Donahue , R. Winfield Trafton , Gary A. Kneezel
IPC分类号： B41J2/195
CPC分类号： B41J2/17566 , B41J2/17513 , B41J2/1752 , B41J29/393 , B41J2002/17589
摘要： The present invention relates generally to the field of inkjet printing, and in particular to a method of printing that provides improved ink usage efficiency. In the method of the present invention a threshold level of ink in an ink chamber or reservoir is stored. The remaining amount of ink in the ink chamber or reservoir is monitored and compared to the threshold level. When the remaining amount of ink in the ink chamber or reservoir is below the threshold level, an ink throughput through the printhead for a printed image is reduced.
摘要翻译：本发明一般涉及喷墨印刷领域，特别涉及提供改善的油墨使用效率的印刷方法。在本发明的方法中，存储墨水室或贮存器中的墨水的阈值水平。监测墨水室或贮存器中的剩余量的墨水并将其与阈值水平进行比较。当墨水室或储存器中的剩余墨水量低于阈值水平时，通过用于打印图像的打印头的墨水通过量减少。

16. 发明授权

US06578942B1 Liquid crystal sensing of thermal ink jet head temperature 有权
标题翻译：液晶感测热喷墨头温度
公开(公告)号：US06578942B1
公开(公告)日：2003-06-17
申请号：US10120303
申请日：2002-04-10
申请人： Richard H. Tuhro , Frederick A. Donahue
发明人： Richard H. Tuhro , Frederick A. Donahue
IPC分类号： B41J2938
CPC分类号： B41J2/04553 , B41J2/0458
摘要： In the system of this application, a liquid crystal temperature sensor is applied to the exterior of the print head cartridge of a printing system to give an optical indication of the temperature at the print head that is readable by an optical scanner.
摘要翻译：在本申请的系统中，将液晶温度传感器应用于打印系统的打印头盒的外部，以给出可由光学扫描器读取的打印头温度的光学指示。

17. 发明授权

US06238046B1 Liquid ink printer including a variable throughput active-passive wet sheet dryer assembly 有权
标题翻译：液体墨水打印机，包括可变吞吐量主动 - 被动湿片干燥器组件
公开(公告)号：US06238046B1
公开(公告)日：2001-05-29
申请号：US09412626
申请日：1999-10-04
申请人： Frederick A. Donahue
发明人： Frederick A. Donahue
IPC分类号： B41J201
CPC分类号： B41J11/002
摘要： A variable throughput active-passive dryer assembly is provided for handling and controllably drying wet sheets printed in a liquid ink printer. The variable throughput active-passive dryer assembly includes a rotatable cylindrical member including a support shaft and an exterior surface defining a path of movement therefor; a driving device for rotatably or indexably driving the exterior surface of the rotatable cylindrical member about the path of movement; a number of wet sheet holding and releasing slots formed in the rotatable cylindrical member from the exterior surface towards a center thereof for retaining and passively allowing wet sheets to dry; an active drying component associated with each wet sheet holding and releasing slot for actively drying a wet sheets within each such slot; and a programmable controller connected to, and controlling operation of, the driving device, and of the active drying component, thereby enabling variable throughput handling and active, as well as passive, drying of wet printed sheets without ink offset and image smearing problems.
摘要翻译：提供了可变通量主动 - 被动干燥器组件，用于处理和可控地干燥印刷在液体墨水打印机中的湿纸。可变吞吐量主动 - 被动干燥器组件包括可旋转的圆柱形构件，其包括支撑轴和限定其移动路径的外表面; 驱动装置，用于围绕运动路径可旋转地或可转位地驱动可旋转圆柱形构件的外表面; 从外表面朝其中心形成在可旋转圆柱形构件中的多个湿纸张保持和释放槽，用于保持和被动地允许湿纸张干燥; 与每个湿纸张保持和释放槽相关联的主动干燥部件，用于主动干燥每个这样的狭槽内的湿纸; 以及连接到驱动装置和主动干燥部件的操作的可编程控制器，从而实现可湿式打印纸的可变吞吐量处理以及被动干燥，而没有油墨偏移和图像污染问题。

18. 发明授权

US06176563B1 Ink marking device maintenance fluid replenishment system and method 有权
标题翻译：油墨打标装置维修液补充系统及方法
公开(公告)号：US06176563B1
公开(公告)日：2001-01-23
申请号：US09232457
申请日：1999-01-19
申请人： David G. Anderson , Frederick A. Donahue , Leonard M. Carreira , Arthur M. Gooray
发明人： David G. Anderson , Frederick A. Donahue , Leonard M. Carreira , Arthur M. Gooray
IPC分类号： B41J2165
CPC分类号： B41J2/17
摘要： A method of replenishing fluid used in an marking device maintenance station of an ink marking device includes obtaining condensate from ambient air through a condensation process and channeling the condensate to a reservoir in communication with the marking device maintenance station.
摘要翻译：在油墨标记装置的标记装置维护站中使用的补充流体的方法包括通过冷凝过程从环境空气获得冷凝物，并将冷凝物引导到与标记装置维护站通信的储存器。

19. 发明授权

US5579453A Smart direct memory access controller 失效
标题翻译：智能直接存储器存取控制器
公开(公告)号：US5579453A
公开(公告)日：1996-11-26
申请号：US358126
申请日：1994-12-16
申请人： William M. Lindenfelser , Frederick A. Donahue , Anthony E. Audi
发明人： William M. Lindenfelser , Frederick A. Donahue , Anthony E. Audi
IPC分类号： B41J5/30 , G06F13/28 , G06K15/10 , G06K15/00
CPC分类号： G06F13/28 , G06K15/10 , G06K2215/0077
摘要： A smart direct memory access controller for data space transformation. The smart direct memory access controller can be used in computer systems to read and/or write data in a non-linear fashion in order to alter the organization of data stored within the computer system. The direct memory access controller has particular application in the electronic subsystem of a non-raster format electronic printer, such as a partial width array or full width array thermal ink jet printer. The smart direct memory access controller enables a non-raster format printer to access image organized in raster format, by viewing the data space as a non-linear or multi-dimensional memory. Memory addresses of the non-linear or multi-dimensional address space are a catenation of several data fields. Each field is one of the coordinates that defines the location of data within memory. In the smart direct memory access controller any one or more of the fields can increase when it comes time to increment the address, giving rise to data streams that are actually vectors through the data space.
摘要翻译：用于数据空间转换的智能直接存储器访问控制器。智能直接存储器访问控制器可用于计算机系统中以非线性方式读取和/或写入数据，以便改变存储在计算机系统内的数据的组织。直接存储器存取控制器在非光栅格式电子打印机的电子子系统中具有特别的应用，例如部分宽度阵列或全宽阵列热喷墨打印机。通过将数据空间视为非线性或多维存储器，智能直接存储器访问控制器使得非光栅格式打印机能够访问以光栅格式组织的图像。非线性或多维地址空间的存储器地址是几个数据字段的连接。每个字段是定义内存中数据位置的坐标之一。在智能直接存储器访问控制器中，当增加地址时，任何一个或多个字段可以增加，从而产生实际上通过数据空间的向量的数据流。

20. 发明授权

US08277006B2 Controllable maintenance operations for efficient ink use 有权
标题翻译：可控维护操作，以实现高效的墨水使用
公开(公告)号：US08277006B2
公开(公告)日：2012-10-02
申请号：US12711354
申请日：2010-02-24
申请人： Frederick A. Donahue , Donald V. Brumbaugh , Gary A. Kneezel
发明人： Frederick A. Donahue , Donald V. Brumbaugh , Gary A. Kneezel
IPC分类号： B41J29/38 , B41J29/293 , B41J2/015 , B41J2/165
CPC分类号： B41J2/1753 , B41J2/16517 , B41J2/17546 , B41J2/17553 , B41J2/17566 , B41J2002/17569
摘要： A method of controlling in a printer the maintenance of an inkjet printhead supplied with fluid from a plurality of fluid sources, the method includes the steps of (a) monitoring the usage of the plurality of fluid sources; (b) identifying a preferred fluid source for use in a maintenance operation based on the monitored usage of the plurality of fluid sources; and (c) performing the maintenance operation using a first quantity of fluid from the preferred fluid source.
摘要翻译：一种在打印机中控制从多个流体源供应流体的喷墨打印头的维护的方法，所述方法包括以下步骤：（a）监视所述多个流体源的使用; （b）基于所监视的多个流体源的使用，识别用于维护操作的优选流体源; 和（c）使用来自优选流体源的第一量的流体进行维护操作。

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