Apparatus and methods for compensation of thermal and hydroscopic expansion effects in a low cost motion control system
    21.
    发明授权
    Apparatus and methods for compensation of thermal and hydroscopic expansion effects in a low cost motion control system 有权
    用于在低成本运动控制系统中补偿热和吸湿膨胀效应的装置和方法

    公开(公告)号:US08182065B2

    公开(公告)日:2012-05-22

    申请号:US11192623

    申请日:2005-07-29

    CPC classification number: B41J19/202

    Abstract: Disclosed are apparatus and methods for compensating for the change in length of an encoder strip due to environmental effects such as temperature and humidity. The apparatus and methods utilize two simple optical sensors spaced apart and mounted on a substrate having a different coefficient of thermal expansion than the encoder strip; the substrate is mounted to the movable component which is to be positioned, such as a printer carriage. Embodiments of the methods utilize information from the two sensors, in conjunction with information from the analog encoder used to position movable component, to compensate for environmental effects.

    Abstract translation: 公开了一种用于补偿由于诸如温度和湿度等环境影响的编码器条的长度变化的装置和方法。 该装置和方法利用间隔开的两个简单的光学传感器并安装在具有与编码器条带不同的热膨胀系数的基板上; 基板被安装到待定位的可移动部件,例如打印机托架。 这些方法的实施例结合来自用于定位可移动部件的模拟编码器的信息,利用来自两个传感器的信息来补偿环境影响。

    Passive linear encoder
    22.
    发明授权
    Passive linear encoder 有权
    被动线性编码器

    公开(公告)号:US08118302B2

    公开(公告)日:2012-02-21

    申请号:US11021650

    申请日:2004-12-23

    CPC classification number: B41J19/202

    Abstract: A passive linear encoder includes a loop and a sensor. The loop is configured to engage print media and to move in concert with, and under power of, the print media. The sensor is positioned to scan indicia defined on an inner surface of the loop.

    Abstract translation: 无源线性编码器包括一个环路和一个传感器。 该循环被配置为接合打印介质并且与打印介质一致并且具有动力移动。 传感器被定位成扫描限定在环的内表面上的标记。

    Scanning a media stack
    23.
    发明授权
    Scanning a media stack 有权
    扫描媒体堆栈

    公开(公告)号:US07885597B2

    公开(公告)日:2011-02-08

    申请号:US10829438

    申请日:2004-04-20

    CPC classification number: H04N1/00567 H04N1/0062 H04N1/00625

    Abstract: An apparatus includes a tray, a sensor, and a transport mechanism. The tray holds a media stack. The transport mechanism moves the tray past the sensor to scan a side of the media stack.

    Abstract translation: 一种装置包括托盘,传感器和输送机构。 托盘固定一个介质堆。 传送机构将托盘移动通过传感器扫描媒体堆叠的一侧。

    Printer with vacuum platen having bimetallic valve sheet providing selectable active area
    24.
    再颁专利
    Printer with vacuum platen having bimetallic valve sheet providing selectable active area 失效
    具有双金属阀片的真空压板的打印机提供可选的有效区域

    公开(公告)号:USRE39441E1

    公开(公告)日:2006-12-26

    申请号:US10771262

    申请日:2004-02-03

    CPC classification number: B41J11/06 B41J11/002 B41J11/0085

    Abstract: A printer has a media transport with a rigid, air-transmissive platen. A movable air-transmissive flexible web overlays the platen. A suction device communicates with the platen to draw air through the web and through the platen such that a sheet of media carried on the web is biased toward the platen. A valve sheet overlays or underlies the platen, and includes a plurality of shut-off elements, each movable in response to temperature changes between a closed position in which the element contacts a portion of the platen to prevent air flow through that portion of the platen, and an open position, in which the element is spaced apart from the platen to admit air to the platen portion. The shut off elements may include resistive heaters and bimetallic strips so that application of electricity generates heat to flex the strip to an open position.

    Abstract translation: 打印机具有带刚性,透气压板的介质输送。 可移动的空气透过的柔性幅材覆盖压板。 抽吸装置与压板连通,以将空气抽吸通过幅材并通过压板,使得承载在纸幅上的纸张被朝向压板偏压。 一个阀片叠置在压板上或其下方,并且包括多个切断元件,每个切断元件可以响应温度变化而移动,该关闭位置在该关闭位置之间,其中元件接触压板的一部分,以防止空气流过压板的该部分 ,以及打开位置,其中元件与压板间隔开以允许空气进入压板部分。 切断元件可以包括电阻加热器和双金属条,使得施加电产生热量以将条带弯曲到打开位置。

    Clear fluid ink-jet pen alignment
    26.
    发明授权
    Clear fluid ink-jet pen alignment 失效
    清晰流畅的喷墨笔对齐

    公开(公告)号:US06454383B2

    公开(公告)日:2002-09-24

    申请号:US09900422

    申请日:2001-07-06

    CPC classification number: B41J29/393 B41J2/125 B41J2/2114 B41J2/2135

    Abstract: A method and apparatus for a test pattern used in the alignment of an ink-jet pen which deposits fixer fluid, or other clear ink precursor fluid, on print media uses the change in reflectivity caused by overprinting a series of positional-calibration indicia with colorant to obtain data with respect to deviations in a carriage-scan x-axis and a paper scan y-axis. Thus the invention measures distances between pens or nozzles.

    Abstract translation: 用于在打印介质上沉积定影剂流体或其它透明油墨前体流体的喷墨笔对准的测试图案的方法和装置使用由着色剂套印一系列位置校准标记引起的反射率变化 以获得关于托架扫描x轴和纸张扫描y轴中的偏差的数据。 因此,本发明测量笔或喷嘴之间的距离。

    Inkjet printing media handling system with advancing guide shim
    27.
    发明授权
    Inkjet printing media handling system with advancing guide shim 失效
    具有前进导向垫片的喷墨打印介质处理系统

    公开(公告)号:US06318854B1

    公开(公告)日:2001-11-20

    申请号:US09163275

    申请日:1998-09-29

    CPC classification number: B41J29/42 B41J11/005 B41J13/14

    Abstract: Accurate advance of a media sheet is achieved by carrying the media sheet on a belt loop. An upstream pinch roller holds the media sheet to the belt upstream of the print zone. A downstream pinch roller holds the media sheet to the belt downstream of the print zone. A guide shim extends along the media path from a position upstream of the upstream pinch roller, passed the upstream pinch roller toward the print zone. The guide shim advances with the bottom edge of the media sheet into the print zone to stabilize the trailing edge so as to allow for a smaller minimum bottom margin.

    Abstract translation: 通过将介质片带在皮带环上来实现介质片的精确提前。 上游夹送辊将介质片保持在打印区域上游的带上。 下游夹送辊将介质片保持在印刷区下游的带上。 引导垫片沿着介质路径从上游夹送辊的上游位置延伸,使上游夹送辊朝向打印区域。 引导垫片随着介质片的底部边缘进入打印区域,以稳定后缘,以允许较小的最小底部边距。

    Apparatus and method of compensating for print engine and encoder expansion or contraction in a printing device
    28.
    发明授权
    Apparatus and method of compensating for print engine and encoder expansion or contraction in a printing device 失效
    补偿打印引擎和编码器在打印设备中的扩展或收缩的装置和方法

    公开(公告)号:US06318839B1

    公开(公告)日:2001-11-20

    申请号:US09690689

    申请日:2000-10-16

    Inventor: Steven B. Elgee

    CPC classification number: B41J19/207

    Abstract: Apparatus and method are disclosed herein that compensate for print engine and encoder expansion or contraction in a printing device. An embodiment of an apparatus in accordance with the present invention for use in a printing device having a print engine and an encoder that indicates where the print engine should print on a print medium, includes a first target on the encoder and a second target on the encoder. The apparatus also includes a first sensor configured to output a first signal upon detection of the first target and a second sensor configured to output a second signal upon detection of the second target. The apparatus additionally includes a computing device coupled to the first sensor, the second sensor and the print engine, which is configured to determine a difference between receipt of the first signal and the second signal, and to adjust when the print engine prints on the print medium based on this difference. An embodiment of a method in accordance with the present invention for use in the above-described printing device, includes measuring a difference between an amount of expansion of the print engine during printing and an amount of expansion of the encoder. The method also includes adjusting a time when the print engine prints on the print medium based on the determined difference. Further characteristics and features of the present invention are disclosed herein.

    Abstract translation: 本文公开的装置和方法在印刷装置中补偿打印引擎和编码器的扩展或收缩。 根据本发明的用于具有打印引擎和编码器的打印装置的装置的实施例,其指示打印引擎应该在打印介质上打印的位置,包括编码器上的第一目标和第二目标 编码器。 该装置还包括第一传感器,其被配置为在检测到第一目标时输出第一信号,以及第二传感器,其被配置为在检测到第二目标时输出第二信号。 该设备还包括耦合到第一传感器,第二传感器和打印引擎的计算设备,其被配置为确定第一信号和第二信号的接收之间的差异,并且调整打印引擎何时打印在打印机上 基于这种差异。 根据本发明的用于上述打印装置的方法的实施例包括测量打印期间打印引擎的扩展量与编码器的展开量之间的差异。 该方法还包括基于所确定的差异来调整打印引擎在打印介质上打印的时间。 本文公开了本发明的其它特征和特征。

    Print media and method of detecting a characteristic of a substrate of print media used in a printing device
    30.
    发明授权
    Print media and method of detecting a characteristic of a substrate of print media used in a printing device 有权
    打印介质和检测打印装置中使用的打印介质的基板的特性的方法

    公开(公告)号:US06255665B1

    公开(公告)日:2001-07-03

    申请号:US09240947

    申请日:1999-01-29

    CPC classification number: B41J11/009 B41J11/46

    Abstract: A print medium with encoded data and a print media detection system for use in detecting at least one characteristic of the sheet of print medium based on the encoded data are disclosed. The encoded data is designed to minimize its visual perceptibility. The print media detector is designed to recognize various characteristics of print media based upon the encoded data and transmit information regarding these characteristics to a printing device so that one or more operating parameters of the printing device can be adjusted to help optimize print quality for the particular characteristics of a particular print medium. A printing device including the print medium and print media detection system is also disclosed. A method of detecting one or more characteristics of print media used in a printing device is additionally disclosed. Further characteristics and features of the print medium, print media detection system, printing device, and method are described herein, as are examples of various alternative embodiments.

    Abstract translation: 公开了一种具有编码数据的打印介质和用于基于编码数据检测打印介质的至少一个特性的打印介质检测系统。 编码数据被设计为使其视觉感知力最小化。 打印介质检测器被设计为基于编码的数据识别打印介质的各种特性,并将关于这些特征的信息发送到打印设备,使得能够调整打印设备的一个或多个操作参数以帮助优化特定的打印质量 特定打印介质的特性。 还公开了一种包括打印介质和打印介质检测系统的打印装置。 另外公开了一种检测在打印装置中使用的打印介质的一个或多个特性的方法。 这里描述了打印介质,打印介质检测系统,打印装置和方法的其它特征和特征,以及各种备选实施例的示例。

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