Drying apparatus
    1.
    发明授权
    Drying apparatus 失效
    干燥装置

    公开(公告)号:US06428161B1

    公开(公告)日:2002-08-06

    申请号:US09846147

    申请日:2001-04-30

    IPC分类号: B41J201

    摘要: An embodiment of a drying apparatus for drying ink deposited onto media includes an electromagnetic energy source to generate electromagnetic energy. The embodiment of the drying apparatus also includes a rectangular waveguide coupled to the electromagnetic energy source. The rectangular waveguide includes slots in the axial direction of the rectangular waveguide on opposite sidewalls corresponding to the largest sides forming a cross section of the rectangular waveguide. The electromagnetic energy source is configured to establish a TE01 mode within the rectangular waveguide, resulting in an electric field substantially perpendicular to the longitudinal axes of fibers within the media and thereby reducing power dissipated within the media while providing sufficient power for drying the ink during a drying operation.

    摘要翻译: 用于干燥沉积在介质上的油墨的干燥设备的实施例包括产生电磁能的电磁能源。 干燥装置的实施例还包括耦合到电磁能源的矩形波导。 矩形波导包括在相对于形成矩形波导的横截面的最大边的相对侧壁上的矩形波导的轴向方向上的槽。 电磁能源被配置为在矩形波导内建立TE01模式,导致电场基本上垂直于介质内纤维的纵向轴线,从而减少在介质内耗散的功率,同时提供足够的功率来在 干燥操作。

    Belt media drive for printer with dual belt encoders
    2.
    发明授权
    Belt media drive for printer with dual belt encoders 失效
    带式媒体驱动器,用于带双重编码器的打印机

    公开(公告)号:US06407678B1

    公开(公告)日:2002-06-18

    申请号:US09584021

    申请日:2000-05-30

    IPC分类号: H03M122

    CPC分类号: H03M1/1066 H03M1/308

    摘要: An encoding system is described for a media handling system including an endless belt. The encoding system includes encoding indicia associated with the endless belt. A first encoder transducer is responsive to the encoding indicia to provide a first encoder signal. A second encoder transducer is responsive to the encoding indicia to provide a second encoder signal, the second encoder transducer spatially separated from the first encoder transducer. An encoder processor is responsive to the first encoder signal and the second encoder signal to determine position data regarding the endless belt. Interruption of indicia due to a belt seam is accommodated by transferring belt position calculation from one transducer to the other as the seam passes between the two transducers. The processor is adapted to compensate for variations in the encoder indicia pitch caused by belt temperature differentials.

    摘要翻译: 描述了一种用于包括环形带的介质处理系统的编码系统。 编码系统包括与环形带相关联的编码标记。 第一编码器换能器响应于编码标记以提供第一编码器信号。 第二编码器换能器响应于编码标记以提供第二编码器信号,第二编码器换能器在空间上与第一编码器换能器分离。 编码器处理器响应于第一编码器信号和第二编码器信号来确定关于环形带的位置数据。 当接缝在两个换能器之间通过时,通过将带位置计算从一个换能器传递到另一个传感器来容纳由于皮带接缝引起的标记的中断。 处理器适于补偿由带温度差导致的编码器标记间距的变化。

    System for ink short protection
    4.
    发明授权

    公开(公告)号:US06578940B2

    公开(公告)日:2003-06-17

    申请号:US09912981

    申请日:2001-07-25

    IPC分类号: B41J207

    摘要: A system for ink short protection for signaling to inkjet printheads includes a differential signaling driver having a first and a second terminal, a differential signaling receiver having a first and a second terminal, a first capacitor in series between the first terminals, a second capacitor in series between the second terminals, and circuitry for reducing charge accumulation on the capacitors. A method for ink short protection and a printing mechanism having such an ink short protection system are also provided.

    Inkjet printing media handling system with advancing guide shim
    7.
    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:US06789889B2

    公开(公告)日:2004-09-14

    申请号:US10041037

    申请日:2001-11-01

    IPC分类号: B41J201

    摘要: 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.

    摘要翻译: 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。

    Linefeed control in belt-type printers
    8.
    发明授权
    Linefeed control in belt-type printers 失效
    皮带式打印机中的换行控制

    公开(公告)号:US06582072B1

    公开(公告)日:2003-06-24

    申请号:US09542504

    申请日:2000-04-03

    IPC分类号: B65H2932

    摘要: Described are techniques for preventing the forces attributable to shrinkage of print media from shifting print media on the media-carrying belt in the vicinity of the print zone. In one approach, a “hold zone” is identified immediately upstream of the print zone. In the hold zone, a mechanism is employed for securing the media to be immovable relative to the belt. The hold mechanism provides sufficient force to overcome tension transmitted to the dry portion of the media as the remaining portion shrinks. In one embodiment, the hold mechanism is a roller that pinches the media against the belt. In another embodiment, the amount of vacuum pressure applied to the belt is regulated so that the suction force applied to the media in the hold zone is greater than the suction force applied to the media in the portion upstream of the hold zone.

    摘要翻译: 描述了用于防止归因于打印介质的收缩的力在打印区域附近的介质承载带上的打印介质移位的技术。 在一种方法中,在打印区域的紧邻的上游识别出“保持区域”。 在保持区域中,采用机构来固定相对于皮带不可移动的介质。 保持机构提供足够的力来克服当剩余部分收缩时传递到介质的干燥部分的张力。 在一个实施例中,保持机构是将介质夹在皮带上的辊。 在另一个实施例中,施加到带的真空压力的量被调节,使得施加到保持区中的介质的吸力大于在保持区的上游部分中施加到介质的吸力。

    Method and apparatus for ink-jet drop trajectory and alignment error detection and correction
    10.
    发明授权
    Method and apparatus for ink-jet drop trajectory and alignment error detection and correction 失效
    喷墨滴液轨迹和对准误差检测和校正的方法和装置

    公开(公告)号:US06315383B1

    公开(公告)日:2001-11-13

    申请号:US09470928

    申请日:1999-12-22

    IPC分类号: B41J29393

    摘要: A method and apparatus for ink-jet drop generator ink drop characteristics uses a drop detector target mounted in the printing zone of a hard copy apparatus. The detector target includes a matrix of individual elements sized approximately the same as pixel targets in printing operations. A detector target is mounted adjacently to the paper path of the apparatus such that test firing can be accomplished prior to each swath scan across the print media. By pre-firing nozzles to be used in the next swath at the detector target, actual trajectory errors and drop volumes can be analyzed in real-time. Alternate embodiments and methods are described.

    摘要翻译: 用于喷墨滴发生器墨滴特性的方法和装置使用安装在硬拷贝装置的打印区域中的液滴检测器目标。 检测器目标包括在打印操作中与像素目标大致相同的单个元件的矩阵。 检测器目标被安装在装置的纸张路径附近,使得可以在跨打印介质的每个扫描扫描之前完成测试点火。 通过预先喷射在检测器目标下的下一个条中使用的喷嘴,可以实时分析实际的轨迹误差和液滴体积。 描述了替代实施例和方法。