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公开(公告)号：US5349375A
公开(公告)日：1994-09-20
申请号：US870449
申请日：1992-04-16
CPC分类号： B41J2/5056 , B41J11/42
摘要： In a printer having P+X printing elements for printing pixels with a vertical center-to-center spacing R.sub.1 during a plurality of line scans, and a stepper motor for moving a record medium in increments R.sub.2 where R.sub.2 is greater than R.sub.1, all points addressable printing is obtained by a combination of movement of the record medium orthogonal to the line scan direction and shifting address signals applied to the print elements. The stepper motor moves the record medium a distance k.sub.2 R.sub.2 between successive line scans and address signals are applied to (n+k.sub.1)th . . . (n+k.sub.1 +P-1)th print elements to cause a shift k.sub.1 R.sub.1 such that the sum of the distance the record medium is moved before a line scan and the shift caused by the address signals during a scan is equal to PR.sub.1 where P is the number of print elements active during the preceding line scan, or equal to any desired integral multiple of R.sub.1 in other print modes. With a print head capable of printing pixels on 1/300 inch centers, and a stepper motor capable of moving the record medium in minimum increments of 1/150 inch, all points addressable printing with a pixel resolution of 1/300 inch is achieved with increased accuracy. This same arrangement also permits printing in the character mode with a line-to-line spacing of exactly 1/6 inch. In a second embodiment the line-to-line spacing differs from 1/2 inch by a distance that has minimal impact on print quality.
摘要翻译： 在具有P + X打印元件的打印机中，用于在多行扫描期间打印具有垂直中心到中心间距R1的像素，以及用于以R2为大于R1的增量R2移动记录介质的步进电机，所有点 通过与行扫描方向正交的记录介质的移动和施加到打印元件的移位地址信号的组合来获得可寻址打印。 步进电机使记录介质在连续行扫描之间移动距离k2R2，将地址信号施加到（n + k1）。 。 。 （n + k1 + P-1）个打印元件，使得在行扫描之前移动记录介质的距离和在扫描期间由地址信号引起的移位之和的移位k1R1等于PR1，其中P 是在前一行扫描期间激活的打印元素的数量，或等于其他打印模式中R1的任何所需的整数倍。 使用能够在1/300英寸中心上打印像素的打印头，以及能够以1/150英寸的最小增量移动记录介质的步进电机，所有点可通过1/300英寸的像素分辨率进行可寻址打印，实现了 增加准确度。 同样的布置还允许以字符模式打印，线间距精确为1/6英寸。 在第二实施例中，线间距离不同于1/2英寸乘以对打印质量影响最小的距离。
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公开(公告)号：US5627572A
公开(公告)日：1997-05-06
申请号：US386590
申请日：1995-02-10
IPC分类号： B41J2/165
CPC分类号： B41J2/1652
摘要： An ink-jet printer is provided with a printhead maintenance system which is capable of providing optimum maintenance for different types of color or monochrome printheads. Dummy heaters are provided in each printhead as a way of identifying the different types of printheads. A maintenance controller is provided in the printer for executing a maintenance program comprising first and second maintenance algorithms for controlling maintenance of monochrome and color type printheads. The controller includes an E.sup.2 PROM memory into which descriptor records are downloaded from a data processor to which the printer is connected. Each descriptor record contains a head detection pattern and various parameters specifying the number and time of wipes, the number of nozzle fires, etc. necessary to maintain a head of the type corresponding to the head detection pattern. When the printer is turned on, or a new printhead is installed, the pattern of heaters is sensed, compared to the head detection patterns in the descriptor records, and the parameters in the descriptor record having a head detection pattern best matching the sensed pattern of heaters are used in executing the maintenance program. The memory may be updated with new descriptor records thereby permitting proper maintenance of printheads developed subsequent to the design of the maintenance system.
摘要翻译： 喷墨打印机设置有能够为不同类型的彩色或单色打印头提供最佳维护的打印头维护系统。 在每个打印头中提供虚拟加热器，以此来识别不同类型的打印头。 在打印机中提供维护控制器，用于执行包括用于控制单色和彩色打印头的维护的第一和第二维护算法的维护程序。 控制器包括一个E2PROM存储器，从打印机所连接的数据处理器下载描述符记录。 每个描述符记录包含头部检测模式和各种参数，其指定维持与头部检测模式对应的类型的头部所需的擦拭物的数量和时间，喷嘴火焰的数量等。 当打印机打开或安装新的打印头时，与描述符记录中的头部检测图案相比，感测加热器的图案，并且描述符记录中的参数具有与检测到的图案最匹配的头部检测图案 加热器用于执行维护程序。 可以用新的描述符记录来更新存储器，从而允许在维护系统的设计之后开发的打印头的适当维护。
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公开(公告)号：US5480240A
公开(公告)日：1996-01-02
申请号：US161006
申请日：1993-12-01
申请人： John P. Bolash , Curt P. Breswick , Thomas J. Eade , David K. Lane , Randall D. Mayo , David S. Waldrop
发明人： John P. Bolash , Curt P. Breswick , Thomas J. Eade , David K. Lane , Randall D. Mayo , David S. Waldrop
CPC分类号： B41J2/3555 , B41J2/36 , G06K15/102 , G06K2215/0071 , G06K2215/0077
摘要： A print quality enhancement arrangement for a dot matrix printer such as a thermal ink jet printer. The arrangement includes a buffer for receiving 300 dots per inch (dpi) resolution data in the horizontal (print head movement) direction and creates 600 dpi resolution data using image enhancement techniques. The arrangement further includes correction of the higher resolution data to remove pels which are unprintable due to the frequency response of the print elements in the print head. The correction is performed using knowledge of the history of printed pels and the original 300 dpi data. The creation of the higher resolution data and its correction occur "on-the-fly" as data is being fed to the print head, rather than through the creation of a 300 by 600 dpi bitmap.
摘要翻译： 用于诸如热喷墨打印机的点阵打印机的打印质量增强布置。 该装置包括用于在水平（打印头移动）方向上接收每英寸300点（dpi）分辨率数据的缓冲器，并使用图像增强技术创建600dpi分辨率数据。 该装置还包括校正较高分辨率的数据以去除由于打印头中的打印元件的频率响应而不能打印的像素。 使用关于印刷图像的历史和原始300dpi数据的知识来执行校正。 随着数据被馈送到打印头，而不是通过创建300×600dpi的位图，“更快的分辨率”数据的创建及其校正发生在“即时”。
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公开(公告)号：US5518324A
公开(公告)日：1996-05-21
申请号：US011460
申请日：1993-01-29
申请人： Michael C. Campbell , Mohsen Marefat , Randall D. Mayo , Jeffrey H. Paterra , Tuyen V. Pham , Donald K. Rex , Kevin D. Schoedinger
发明人： Michael C. Campbell , Mohsen Marefat , Randall D. Mayo , Jeffrey H. Paterra , Tuyen V. Pham , Donald K. Rex , Kevin D. Schoedinger
IPC分类号： B41J25/308 , B41J11/20
CPC分类号： B41J25/3088 , B41J25/308
摘要： A system for automatically adjusting the print head gap of an impact printer, particularly for paper stocks of differing thicknesses and multi-layer forms, provides for measurement of an absolute distance between an undeflected platen position and a home position of the print head. Paper stock thickness is measured by measuring the distance to the home position from a position of the print head when a predetermined force is exerted by the print head against the platen. Since a similar measurement is made when paper stock is not present in the printer and using the same force against the platen, platen flexure is removed as a source of error and a standardized force is available for compression of the paper stock during measurement. Improved accuracy is achieved at high speed while avoiding the use of position encoder/decoder arrangements. A wider range of manufacturing variations in printer geometry and rigidity can be accommodated with uniformly improved print quality.
摘要翻译： 一种用于自动调节冲击式打印机的打印头间隙的系统，特别是对于不同厚度和多层形式的纸料，可提供测量打印头的未偏转的压板位置和原始位置之间的绝对距离。 当打印头对着压板施加预定的力时，通过从打印头的位置测量到原始位置的距离来测量纸料厚度。 由于当打印机中不存在纸张并且使用与压盘相同的力进行类似的测量时，作为误差源移除压板弯曲，并且在测量期间可以使用标准化的压力来压缩纸张。 提高了准确度，同时避免使用位置编码器/解码器装置。 打印机几何形状和刚度的制造变化范围更广，可以均匀提高打印质量。
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公开(公告)号：US07862137B2
公开(公告)日：2011-01-04
申请号：US10957093
申请日：2004-09-30
CPC分类号： B41J2/17553 , B41J11/008 , B41J13/0027
摘要： Method and devices for reducing printing artifacts. In one embodiment, a method includes directing ink onto a medium, the medium having a trailing edge; tracking the position of the medium in relation to a nip roller; adjusting the direction of ink onto the medium a first time when the trailing edge of the medium is in close proximity to the nip roller; and adjusting the direction of ink onto the medium a second time.
摘要翻译： 减少印刷伪影的方法和装置。 在一个实施例中，一种方法包括将油墨引导到介质上，所述介质具有后缘; 跟踪介质相对于夹持辊的位置; 当介质的后缘非常接近夹持辊时，第一次将墨的方向调整到介质上; 并且第二次将墨的方向调整到介质上。
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6.发明授权公开(公告)号：US07391525B2
公开(公告)日：2008-06-24
申请号：US10389576
申请日：2003-03-14
申请人： Alexander L. Chapman , David G. King , Patrick L. Kroger , Michael A. Marra, III , Randall D. Mayo , Barry B. Stout
发明人： Alexander L. Chapman , David G. King , Patrick L. Kroger , Michael A. Marra, III , Randall D. Mayo , Barry B. Stout
CPC分类号： H04N1/128 , B41J11/46 , H04N1/0473 , H04N1/12 , H04N2201/02416 , H04N2201/02439 , H04N2201/03108 , H04N2201/0471 , H04N2201/04717 , H04N2201/04725 , H04N2201/04734 , H04N2201/04755 , H04N2201/04756 , H04N2201/04789 , H04N2201/04791 , H04N2201/04793 , H04N2201/04794
摘要： Methods and systems for calibrating media indexing errors in a printing device are provided. In one embodiment, the method comprises feeding a calibration media through a printing device, sensing the position of the media as it moves through the printing device, sensing positions of a media indexing component as the media moves through the printing device, determining media indexing position errors based upon the sensed positions, and calculating a compensation factor to be applied based upon the errors. In some embodiments, parameters of a line and/or other function are determined from the error data and the parameters are utilized to calculate a compensation factor. Moreover, in some embodiments, it is determined what range the data fits within, and a predetermined compensation factor is determined based upon the range.
摘要翻译： 提供了用于校准印刷装置中的介质分度误差的方法和系统。 在一个实施例中，该方法包括通过打印装置馈送校准介质，当介质移动通过打印装置时感测介质的位置，当介质移动通过打印装置时检测介质索引部件的位置，确定介质索引位置 基于感测到的位置的误差，以及基于误差计算要应用的补偿因子。 在一些实施例中，从误差数据确定线和/或其他功能的参数，并且使用参数来计算补偿因子。 此外，在一些实施例中，确定数据适合的范围，并且基于该范围确定预定的补偿因子。
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公开(公告)号：US5563637A
公开(公告)日：1996-10-08
申请号：US143328
申请日：1993-10-26
申请人： Monty L. Francis , Paul Harrington III , Randall D. Mayo , Katherine A. Profitt , Donald N. Spitz
发明人： Monty L. Francis , Paul Harrington III , Randall D. Mayo , Katherine A. Profitt , Donald N. Spitz
IPC分类号： B41J2/165
CPC分类号： B41J2/16547
摘要： A maintenance station for an ink jet printer comprises two modules supported from the printer middle frame by a tongue and groove arrangement and secured in place only by retaining elements integrally formed with the middle frame. The first module includes a wiper element and a cap to provide an air seal around the nozzles. The wiper and cap are mounted on a pivoted rocker element so that as the wiper is moved toward the printhead the cap is moved away therefrom and visa-versa. The second module carries a small DC motor, a nut with a pair of forked arms, and gearing for converting bidirectional rotation of the motor into linear reciprocal motion of the forked arms. The forked arms engage projections on the rocker element so that the wiper or cap is moved toward or away from the printhead depending on the direction of rotation of the motor. In a first position of the rocker element the wiper is positioned in the path of the printhead so as to wipe the nozzles as the printhead is moved back and forth. In a second position the cap presses against the printhead to form an air seal around the nozzles. In a third position the wiper and cap are both spaced away from the path of the printhead and below the plane of the record feed path. The printer controller senses motor current and controls positioning of the rocker element without the need for a position feedback encoder.
摘要翻译： 用于喷墨打印机的维护站包括通过榫槽布置从打印机中间框架支撑的两个模块，并且仅通过与中间框架一体形成的保持元件固定就位。 第一模块包括擦拭器元件和盖，以在喷嘴周围提供空气密封。 刮水器和盖子安装在枢转的摇臂元件上，使得当刮水器朝向打印头移动时，盖子从其移开，反之亦然。 第二个模块带有一个小直流电动机，一个带有一对分叉臂的螺母，以及用于将电动机的双向旋转转换为叉形臂的线性往复运动的传动装置。 叉形臂与摇臂元件上的突起接合，使得刮水器或帽根据马达的旋转方向朝向或远离打印头移动。 在摇臂元件的第一位置中，擦拭器位于打印头的路径中，以便当打印头前后移动时擦拭喷嘴。 在第二位置，盖压靠打印头以在喷嘴周围形成空气密封。 在第三位置，擦拭器和盖子都与打印头的路径间隔开并且在记录馈送路径的平面之下。 打印机控制器感测电机电流并控制摇臂元件的定位，而不需要位置反馈编码器。
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公开(公告)号：US07815285B2
公开(公告)日：2010-10-19
申请号：US11254456
申请日：2005-10-20
IPC分类号： B41J2/145
CPC分类号： B41J19/145 , B41J2/2132 , G06K15/107
摘要： Printheads configured to operate in accordance with a plurality of print modes. For example, one of the plurality of print modes can be selected in accordance with a bit of address data received by the printhead. In an exemplary embodiment, the selection of print mode can be accomplished by switching one or more actuator (e.g., heater) circuit addresses on the printhead.
摘要翻译： 打印头被配置为根据多种打印模式进行操作。 例如，可以根据由打印头接收到的地址数据的位来选择多个打印模式之一。 在示例性实施例中，可以通过切换打印头上的一个或多个致动器（例如，加热器）电路地址来实现打印模式的选择。
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公开(公告)号：US4319174A
公开(公告)日：1982-03-09
申请号：US136002
申请日：1980-03-31
申请人： Paul A. Cook , Randall D. Mayo , Jerry W. Raider
发明人： Paul A. Cook , Randall D. Mayo , Jerry W. Raider
CPC分类号： H02P8/32
摘要： A stepper motor damping control system. Damping is performed by switching the power supply connection(s) of energized motor phase windings alternatively ON and OFF at a predetermined relatively high fixed rate. Said switching is performed using a clock signal information for switching one way and an information denoting equality between a voltage substantially proportional to the current flowing through said motor phase windings with a predetermined sawtooth sloped reference signal synchronized with said clock signal for switching the other way.
摘要翻译： 步进电机阻尼控制系统。 通过以预定的相对高的固定速率交替地接通和断开通电的电动机相绕组的电源连接来执行阻尼。 使用用于切换单向的时钟信号信息和表示与流过所述电动机相绕组的电流基本成比例的电压与用于切换另一种方式同步的预定锯齿波参考信号的预定锯齿波参考信号进行所述切换。
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10.发明授权Method for performing edge-to-edge transition during printing with an imaging apparatus 有权在使用成像装置打印期间进行边缘到边缘转换的方法公开(公告)号：US07168785B2
公开(公告)日：2007-01-30
申请号：US10956934
申请日：2004-09-30
IPC分类号： B41J2/15
CPC分类号： B41J2/2132
摘要： A method of printing on a print medium includes using a first quantity of nozzles of a printhead to print a first set of scan lines of a plurality of scan lines at an edge of the print medium; using a second quantity of nozzles of the printhead to print a second set of scan lines of the plurality of scan lines in an interior region of the print medium; using a third quantity of nozzles to print a third set of scan lines of the plurality of scan lines to transition between the edge and the interior region, the third quantity of nozzles being greater in number than the first quantity of nozzles and less in number than the second quantity of nozzles; and printing each scan line of the plurality of scan lines forming the image with a same number of multiple passes of the printhead, regardless of the number of nozzles used for printing during a particular pass of the printhead.
摘要翻译： 在打印介质上打印的方法包括使用打印头的第一数量的喷嘴在打印介质的边缘打印多条扫描线的第一组扫描线; 使用所述打印头的第二数量的喷嘴在所述打印介质的内部区域中打印所述多条扫描线的第二组扫描线; 使用第三数量的喷嘴来打印多条扫描线的第三组扫描线以在边缘和内部区域之间转换，第三数量的喷嘴数量大于第一喷嘴数量，数量少于 第二数量的喷嘴; 并且不管在打印头的特定通过期间用于打印的喷嘴的数量如何，打印具有与打印头相同数量的多次通过的形成图像的多条扫描线的每条扫描线。
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