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公开(公告)号：US06328491B1
公开(公告)日：2001-12-11
申请号：US09515086
申请日：2000-02-28
IPC分类号： B41J1106
CPC分类号： B41J11/0085 , B29C64/20 , B41J2/185 , B41J11/06 , B41J29/17
摘要： A vacuum platen and method for use thereof in a printing device are disclosed. An apparatus embodiment includes a first surface having a plurality of first apertures therethrough, a labyrinth configured to include a plurality of passageways each of which is fluidly coupled to at least one of the first apertures, and a second surface having a plurality of second apertures therethrough each of which is fluidly coupled to the vacuum source and at least one of the passageways thereby establishing an airflow from the first apertures, through the passageways, and out the second apertures. The vacuum platen also includes at least one receptacle in each of the passageways, each receptacle configured to collect debris from the airflow as it travels through the labyrinth. A method embodiment includes distributing a vacuum hold-down force over the printzone, conducting an airflow causing the vacuum hold-down force from the printzone to the vacuum source, and collecting debris from the airflow by changing a direction of travel of the airflow as it is conducted from the printzone to the vacuum source. Further characteristics and features of the apparatus and method are disclosed herein.
摘要翻译： 公开了一种真空压板及其在打印装置中的使用方法。 设备实施例包括具有穿过其中的多个第一孔的第一表面，迷宫被配置为包括多个通道，每个通道流体地联接到至少一个第一孔，第二表面具有穿过其中的多个第二孔 每个流体耦合到真空源，并且至少一个通道由此从第一孔，通过通道和第二孔建立气流。 真空压板还包括在每个通道中的至少一个容器，每个容器被构造成在气流行进通过迷宫时从气流中收集碎屑。 方法实施例包括在打印区域上分布真空压紧力，引导气流，从而将真空压缩力从打印区传送到真空源，并通过改变气流的行进方向从气流收集碎屑 从打印区域传送到真空源。 本文公开了该装置和方法的其它特征和特征。
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公开(公告)号：US06572294B2
公开(公告)日：2003-06-03
申请号：US09970468
申请日：2001-10-03
IPC分类号： B41J29377
CPC分类号： B41J11/0085 , B29C64/20 , B41J2/185 , B41J11/06 , B41J29/17
摘要： A vacuum platen and method for use thereof in a printing device are disclosed. An apparatus embodiment includes a first surface having a plurality of first apertures therethrough, a labyrinth configured to include a plurality of passageways each of which is fluidly coupled to at least one of the first apertures, and a second surface having a plurality of second apertures therethrough each of which is fluidly coupled to the vacuum source and at least one of the passageways thereby establishing an airflow from the first apertures, through the passageways, and out the second apertures. The vacuum platen also includes at least one receptacle in each of the passageways, each receptacle configured to collect debris from the airflow as it travels through the labyrinth. A method embodiment includes distributing a vacuum hold-down force over the printzone, conducting an airflow causing the vacuum hold-down force from the printzone to the vacuum source, and collecting debris from the airflow by changing a direction of travel of the airflow as it is conducted from the printzone to the vacuum source. Further characteristics and features of the apparatus and method are disclosed herein.
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公开(公告)号：US06543948B2
公开(公告)日：2003-04-08
申请号：US09780260
申请日：2001-02-09
IPC分类号： B41J1308
CPC分类号： B41J11/0085 , B41J11/0025 , B41J11/06
摘要： A printer with a media transport has a rigid, air-transmissive platen. A movable air-transmissive flexible web overlies the platen and moves along a feed axis. A suction device communicates with the platen to draw air through the web and through the platen so that a sheet of media carried on the web is biased toward the platen. A manifold underlies the platen and has a number of separate chambers open to the platen, so that the suction device is connected to each of the chambers. A controller operates to selectably prevent communication between the suction device and at least some of the chambers.
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公开(公告)号：US06409332B1
公开(公告)日：2002-06-25
申请号：US09514830
申请日：2000-02-28
IPC分类号： B41J201
CPC分类号： B41J11/0085 , B41J11/007
摘要： An ink-jet apparatus employs a platen having an array of vacuum ports that are each filtered. The filter is constructed to provide restricted-airflow rates which remain uniform when the platen is either fully covered or partially uncovered. The filter mechanism provides both airflow restrictions such that ink drop flight trajectories in the printing zone are unaffected, acoustic dampening of the vacuum pump is provided, and vacuum pressure is kept relatively high proximate the print media edges.
摘要翻译： 喷墨装置采用具有每个过滤的真空端口阵列的压板。 过滤器被构造成当压板被完全覆盖或部分未覆盖时提供保持均匀的限制气流速率。 过滤器机构提供气流限制，使得打印区域中的墨滴飞行轨迹不受影响，提供真空泵的声阻尼，并且在打印介质边缘附近的真空压力保持相对较高。
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公开(公告)号：US06682190B2
公开(公告)日：2004-01-27
申请号：US10132782
申请日：2002-04-24
申请人： Steve O Rasmussen , Robert M. Yraceburu , Steven P Downing , Stuart D. Spencer , Jason S. Belbey , Vance M Stephens
发明人： Steve O Rasmussen , Robert M. Yraceburu , Steven P Downing , Stuart D. Spencer , Jason S. Belbey , Vance M Stephens
IPC分类号： B41J201
CPC分类号： B41J11/005
摘要： In an inkjet printing apparatus an inkjet printhead ejects ink into a print-zone. A drive shaft, located upstream of the printhead, has a longitudinal axis, a first radius over a central length, and a second radius less than the first radius at a first recess and a second recess. Each recess is peripheral to the central length. A plurality of pinch devices stabilize the media against the drive shaft. A first guide and a second guide, spaced from the longitudinal axis, are aligned with and extend into the first recess and second recess.
摘要翻译： 在喷墨打印设备中，喷墨打印头将墨水喷射到打印区域中。 位于打印头上游的驱动轴具有纵向轴线，中心长度上的第一半径，以及在第一凹部和第二凹槽处小于第一半径的第二半径。 每个凹槽是中心长度的外围。 多个夹紧装置将介质稳定地抵靠驱动轴。 与纵向轴线间隔开的第一引导件和第二引导件与第一凹槽和第二凹槽对准并延伸到第一凹槽和第二凹槽中。
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公开(公告)号：US06406140B1
公开(公告)日：2002-06-18
申请号：US09733335
申请日：2000-12-08
IPC分类号： B41J201
CPC分类号： B41J11/007 , B41J11/002 , B41J11/0085
摘要： Anisotropic thermal conditioning of print media is provided for liquid colorant printing, such as in ink-jet hard copy apparatus, by establishing discrete temperature zones across a platen surface. Heat transfer mechanisms associated with individually selectable heater elements rapidly establish substantially uniform temperature profiles in each zone.
摘要翻译： 通过在压板表面上建立离散的温度区域，为喷墨硬拷贝装置提供用于液体着色剂印刷的印刷介质的各向异性热调节。 与单独选择的加热器元件相关联的热传递机构在每个区域中快速建立基本均匀的温度曲线。
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公开(公告)号：US06257569B1
公开(公告)日：2001-07-10
申请号：US09256851
申请日：1999-02-24
IPC分类号： B65H306
CPC分类号： B65H3/5223 , B65H3/0669 , B65H5/062 , B65H2301/42344 , B65H2403/42 , B65H2403/421 , B65H2403/51 , B65H2403/512 , B65H2404/1442
摘要： An apparatus and method for delivery of sheet media to a printer includes a chassis, a drive motor, a media tray with elevatable pressure plate, a plurality of pick rollers situated opposite movable pinch rollers that come into contact with the pick rollers to form a roller assembly therebetween when in an extended position. A movable separator forms a throat between one of the pick rollers and the leading edge of the separator when it is in an extended position. A common transmission is used to simultaneously position the pinch rollers, separator, and the pressure plate. The apparatus also includes a media retarder for preventing multiple sheets of media from advancing through the apparatus at the same time. The method includes delaying the rotation of the pick rollers until a stack of media has been raised to press against the pick rollers, and the pinch rollers and separator are in an extended position. The pinch rollers and separator are retracted, and the transmission is disengaged from the pick rollers once the media sheet is delivered to a printer feed system.
摘要翻译： 用于将片材介质输送到打印机的装置和方法包括底盘，驱动马达，具有可升高压力板的介质托盘，与可移动夹送辊相对的多个拾取辊，该拾取辊与拾取辊接触以形成辊 当处于延伸位置时，它们之间的组件。 当分离器处于伸出位置时，可动分离器在分离器之一和分离器的前缘之间形成喉部。 常用的传动装置用于同时定位夹送辊，分离器和压板。 该装置还包括用于防止多张介质同时前进通过设备的介质延迟器。 该方法包括延迟拾取辊的旋转，直到一叠介质被升高以压靠拾取辊，并且夹送辊和分离器处于伸出位置。 夹送辊和分离器缩回，并且一旦介质片被输送到打印机进给系统，变速器就从拾纸辊脱离。
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公开(公告)号：US6042103A
公开(公告)日：2000-03-28
申请号：US977855
申请日：1997-11-25
CPC分类号： B65H1/14
摘要： A media feed apparatus for a printer, with a motorized media pick mechanism and a media support plate movable toward and away from the pick element, so that a stack of media on the plate may be brought into contact with the pick mechanism. A lifter assembly is continuously movable between a first position and a second position, and has a cam surface supportably contacting the media support plate. A first cam surface portion contacts the support plate when the lifter assembly is in the first position, and a second cam surface portion contacts the support plate when the lifter assembly is in the second position. The support plate may have a protrusion over which the cam surface slides, and the cam may pivoted to provide a selectable lever arm, depending on the point of contact.
摘要翻译： 一种用于打印机的介质进给装置，具有电动介质拾取机构和可朝向和远离拾取元件移动的介质支撑板，使得板上的介质堆可与拾取机构接触。 提升器组件可在第一位置和第二位置之间连续移动，并且具有可支撑地接触介质支撑板的凸轮表面。 当升降器组件处于第一位置时，第一凸轮表面部分接触支撑板，并且当升降器组件处于第二位置时，第二凸轮表面部分接触支撑板。 支撑板可以具有凸起，凸轮表面滑过凸起，并且凸轮可以枢转以提供可选择的杠杆臂，这取决于接触点。
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公开(公告)号：US06536894B1
公开(公告)日：2003-03-25
申请号：US09588941
申请日：2000-06-06
申请人： Steve O Rasmussen , Geoff Wotton , Steven B Elgee , Todd R Medin
发明人： Steve O Rasmussen , Geoff Wotton , Steven B Elgee , Todd R Medin
IPC分类号： B41J201
CPC分类号： B41J11/0085 , B41J11/002
摘要： A print media preheating method and apparatus uses heat, vacuum, and mechanisms for drying and flattening a sheet prior to ink-jet printing thereon. Pre-shrinking the media, driving out and substantially reducing inherent moisture content prior to depositing wet ink thereon provides greater flatness in the print-zone whereby ink-jet print quality is improved.
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公开(公告)号：US06299287B1
公开(公告)日：2001-10-09
申请号：US09479103
申请日：2000-01-07
IPC分类号： B41J221
CPC分类号： B41J19/147
摘要： Non-black ink jet printheads are arranged in a printer carriage such that the printhead nozzle arrays are non-overlapping in the carriage swath direction. A fixer printhead is positioned such that the print medium is first advanced past the fixer printhead prior to reaching any of the other printheads. The printheads are selectively driven during each direction of a bi-directional carriage movement, and the print medium is incrementally advanced before each change in carriage movement direction. The order of laying down droplets of different colors is the same during the movement in each direction, thereby eliminating bi-directional hue shifting print artifacts.
摘要翻译： 非黑色喷墨打印头布置在打印机托架中，使得打印头喷嘴阵列在托架方向上不重叠。 定位打印头定位成使得打印介质在到达任何其它打印头之前首先被提前通过固定器打印头。 在双向滑架运动的每个方向上选择性地驱动打印头，并且打印介质在滑架移动方向的每个改变之前递增地前进。 在每个方向的移动过程中放置不同颜色的液滴的顺序是相同的，从而消除了双向色调偏移打印伪像。
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