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    • 4. 发明授权
    • Inner paper guide for media shape control in a printer
    • 内部纸张导板用于打印机中的介质形状控制
    • US06942406B2
    • 2005-09-13
    • US10016746
    • 2001-10-30
    • Craig D. SunadaWilliam H. SchwiebertRobert D. Davis
    • Craig D. SunadaWilliam H. SchwiebertRobert D. Davis
    • B41J11/00B41J13/00B41J13/10B65H5/06B65H5/38B41J2/01
    • B41J11/0045B41J13/0063B41J13/103
    • A media handling system for handling sheets of media. The system includes a pick roller having a circumferential media-contacting surface and arranged for rotation about a roller axis to contact and pick a sheet from an input source. A drive roller rotates about a drive roller axis, with a media path extending between the pick roller and the drive roller. A first guide structure is positioned along a first longitudinal edge of the media path and providing a first media guide surface. A second guide structure is positioned along a second longitudinal edge of the media path and provides a second media guide surface. The first and second guide surfaces are positioned to constrain the movement of a media sheet in the media path between the pick roller and the drive roller, thereby alleviating trailing edge print defects.
    • 用于处理纸张介质的介质处理系统。 该系统包括具有周向介质接触表面并且布置成围绕辊轴线旋转以从输入源接触和拾取片材的拾取辊。 驱动辊围绕驱动辊轴线旋转,介质路径在拾取辊和驱动辊之间延伸。 第一引导结构沿着介质路径的第一纵向边缘定位并且提供第一介质引导表面。 第二引导结构沿着介质路径的第二纵向边缘定位并提供第二介质引导表面。 定位第一和第二引导表面以限制介质片在拾取辊和驱动辊之间的介质路径中的运动,从而减轻后缘印刷缺陷。
    • 6. 发明授权
    • Wiping system for inkjet printer
    • 喷墨打印机擦拭系统
    • US06000780A
    • 1999-12-14
    • US225039
    • 1994-04-08
    • William H. SchwiebertGerold G. Firl
    • William H. SchwiebertGerold G. Firl
    • B41J2/165
    • B41J2/16547
    • A service station for use with an inkjet printer is described. The service station includes a sled that is mounted to the printer's chassis. Caps and wipers can be mounted on the sled for each of the printer's movable carriage-mounted printheads. The sled and the chassis, and the sled and carriage, are each cam-coupled so that movement of the carriage produces slight vertical and lateral movement of the sled out of a nominal position to automatically place the sled in one of three primary positions relative to the carriage: an elevated position for capping the printheads, an intermediate position for wiping the printheads and a lowered position for free reciprocal movement of the carriage without interference between the printheads and either the caps or the wipers. A wiper structure according to the invention includes a pre-loaded spring and wiper blades made of a relatively stiff material so that the wiper blade angle of attack is maintained close to 90.degree., resulting in good wiping of the printheads. The spring can have a low spring constant so that good control of wiping forces is maintained. The wiper blades are made of an injection moldable material. For example, the wiper blades can be made of an injection moldable polymer such as olefin polymers or polyolefin alloys. In one particular embodiment, the wiper blades are made of a blend of polypropylene and polyethylene. Alternatively, the wiper blades can be made of an engineering thermoplastic elastomer (ETE).
    • 描述了与喷墨打印机一起使用的维修站。 维修站包括安装在打印机机箱上的滑轨。 每个打印机的可移动支架安装的打印头都可以将雪橇和雨刷安装在雪橇上。 滑板和底盘以及滑板和滑架各自凸轮连接,使得滑架的运动产生滑雪板的标准位置的轻微的垂直和横向运动,以将滑板自动地放置在三个主要位置中的一个相对于 托架:用于盖住打印头的升高位置,用于擦拭打印头的中间位置和用于托架自由往复运动的降低位置,而不会在打印头和盖子或擦拭器之间产生干扰。 根据本发明的擦拭器结构包括由相对刚性材料制成的预加载弹簧和擦拭器刮片,使得刮水片的迎角保持接近90°,从而良好地擦拭打印头。 弹簧可以具有较低的弹簧常数,从而保持良好的擦拭力控制。 刮水片由注射成型材料制成。 例如,刮水片可由可注射成型的聚合物如烯烃聚合物或聚烯烃合金制成。 在一个具体实施例中,刮水片由聚丙烯和聚乙烯的混合物制成。 或者,刮水片可由工程热塑性弹性体(ETE)制成。
    • 7. 发明授权
    • Method and apparatus for heating print medium in an ink-jet printer
    • 用于在喷墨打印机中加热打印介质的方法和装置
    • US5500667A
    • 1996-03-19
    • US235772
    • 1994-04-29
    • William H. SchwiebertCorrina A. E. HallDamon W. BroderShelley I. Moore
    • William H. SchwiebertCorrina A. E. HallDamon W. BroderShelley I. Moore
    • B41J2/01B41J11/00B41J29/00
    • B41J11/002
    • A method and apparatus for heating the print medium in a ink-jet printer to reduce printing defects in a relatively cold machine. The printer includes a print area heater which in a steady state condition for a given print medium is energized at a first heating level. Under cold start conditions, for an initial plot, the hater is overdriven at a second heating level. Under a multiple-pass printing mode, the hating drive is gradually reduced during an initial portion of the initial plot, until the first heating level is achieved. The heater drive level remains at the first heating level for subsequent plots in a given batch. For single-pass print modes, the heater drive level remains at the second level for the entire initial plot in a batch, and is reduced to the first level for subsequent plots. The printer has a preheater along the medium path, with an unheated area along the path between the print area and the preheater. To further improve print quality when printing along top leading edge margins, the paper is initially advanced until the leading edge is over the print area heater and left for a first time interval. The paper is then retracted to position the paper area initially located over the unheated area of the paper path during the first interval over the preheater. The paper is left in the retracted position during a second time interval, and then advanced to the print area to commence printing operations.
    • 一种用于在喷墨打印机中加热打印介质以减少相对冷的机器中的打印缺陷的方法和装置。 打印机包括打印区域加热器,其在给定打印介质的稳定状态下以第一加热水平通电。 在冷启动条件下,对于初始图,加热器在第二加热水平下过载。 在多遍打印模式下,在初始图的初始部分期间,憎恨驱动器逐渐减小,直到达到第一加热水平。 在给定批次中,加热器驱动电平保持在第一加热水平,用于随后的图。 对于单程打印模式,对于批次中的整个初始绘图,加热器驱动级别保持在第二级,并且将其还原为后续绘图的第一级。 打印机沿着中等路径具有预热器,沿着印刷区域和预热器之间的路径具有未加热的区域。 为了进一步提高打印质量,首先沿着顶部的边缘边缘进行打印,纸张最初会先进行,直到前缘在打印区域加热器上方,并保留第一个时间间隔。 然后在预热器的第一间隔期间,将纸张缩回以将起始位于纸路径未加热区域的纸张区域定位。 纸张在第二时间间隔内处于缩回位置,然后前进到打印区域开始打印操作。