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    Vacuum control for vacuum holddown
    1.
    发明授权
    Vacuum control for vacuum holddown 有权
    真空压紧真空控制

    公开(公告)号：US06254090B1

    公开(公告)日：2001-07-03

    申请号：US09292125

    申请日：1999-04-14

    申请人： John D. Rhodes ,  Steve O. Rasmussen ,  Angela Chen ,  Geoff Wotton

    发明人： John D. Rhodes ,  Steve O. Rasmussen ,  Angela Chen ,  Geoff Wotton

    IPC分类号： B65H508

    CPC分类号： G03G15/6597 ,  B41J11/0085 ,  B41J13/226 ,  B65H5/222 ,  B65H2406/332 ,  B65H2406/351 ,  B65H2406/3632

    摘要： A mechanism for manifolding a vacuum force to separate surface sectors of a vacuum holddown uses subsurface ducting to apply the vacuum to separate subsurface vacuum plenums wherein each is fluidically coupled to a separate surface sectors. The plenum is segregated by a diaphragm into surface side and vacuum side cavities. Trigger ports and appropriate ducting through the holddown subjacent the surface associated with each sector determine how the vacuum is routed. Only when a trigger port is covered is the vacuum routed to the surface sector associated therewith. The system can be implemented in planar or curvilinear constructs and be provided with features to accommodate a near-continuous range of flexible material sizes. A specific implementation in an ink-jet hard copy apparatus is also described.

    摘要翻译： 用于歧管真空力以分离真空压紧的表面部分的机构使用地下管道将真空施加到分开的地下真空室，其中每个都与流体耦合到单独的表面扇区。 气室通过隔膜分隔成表面侧和真空侧腔。 触发端口和通过与每个扇区相关联的表面下方的压盖的适当管道决定了真空如何路由。 只有当触发端口被覆盖时，真空被引导到与其相关联的表面扇区。 该系统可以在平面或曲线构造中实现，并且具有能够适应近连续范围的柔性材料尺寸的特征。 还描述了喷墨硬拷贝装置中的具体实现。

    Vacuum surface for wet dye hard copy apparatus
    2.
    发明授权
    Vacuum surface for wet dye hard copy apparatus 有权
    真空表面用于湿染料硬拷贝装置

    公开(公告)号：US06172741B2

    公开(公告)日：2001-01-09

    申请号：US09292838

    申请日：1999-04-14

    申请人： Geoff Wotton ,  Angela Chen ,  Steve O. Rasmussen ,  John D Rhodes

    发明人： Geoff Wotton ,  Angela Chen ,  Steve O. Rasmussen ,  John D Rhodes

    IPC分类号： G03B2760

    CPC分类号： B42C1/125 ,  B41J13/226 ,  B65H2408/111 ,  B65H2408/1141 ,  B65H2511/12 ,  B65H2513/51 ,  B65H2220/01 ,  B65H2220/02

    摘要： A platen surface structure construct, particularly useful in a hard copy apparatus for a vacuum holddown, is configured by dimensioning print media platen surface structure channels and ports in order to ensure print media leading edge and trailing edge holddown. Moreover, the vacuum is distributed across the platen surface in accordance with predetermined dye flow characteristics based upon known dye composition and known print medium composition and such that print artifacts are not created by vacuum pulling wet dye through the capillaries of the medium.

    摘要翻译： 特别适用于用于真空压紧的硬拷贝装置中的压板表面结构构造通过使打印介质压板表面结构通道和端口的尺寸确定，以确保打印介质的前缘和后缘保持力。 此外，根据已知的染料组成和已知的打印介质组合物，根据预定的染料流动特性，真空分布在压板表面上，并且使得真空吸湿湿染料通过介质的毛细管不产生印刷伪影。

    Method and apparatus for using a vacuum to reduce cockle in printers
    3.
    发明授权
    Method and apparatus for using a vacuum to reduce cockle in printers 失效
    使用真空来减少打印机中的吊钩的方法和装置

    公开(公告)号：US06467410B1

    公开(公告)日：2002-10-22

    申请号：US09484566

    申请日：2000-01-18

    申请人： Steve O Rasmussen ,  John D. Rhodes ,  Geoff Wotton

    发明人： Steve O Rasmussen ,  John D. Rhodes ,  Geoff Wotton

    IPC分类号： B41F3500

    CPC分类号： B41J11/0005 ,  B41J11/0085

    摘要： In a printer, liquid ink is applied to a print medium as the medium is passed through the printer. A low pressure zone is generated along one surface of the print medium to hold a portion of the print medium substantially flat for a period of time during and after the liquid ink is applied to the print medium. By subjecting the portion of the print medium to the low pressure zone, cockling of the print medium is prevented.

    摘要翻译： 在打印机中，当介质通过打印机时，液体墨水被施加到打印介质上。 沿着打印介质的一个表面产生低压区，以在将液体油墨施加到打印介质之间和之后的一段时间内将打印介质的一部分基本平坦地保持。 通过使打印介质的一部分经受低压区，防止了打印介质的起皱。

    Belt-type media support for a printer
    4.
    发明授权
    Belt-type media support for a printer 失效
    带式媒体支持打印机

    公开(公告)号：US06394596B1

    公开(公告)日：2002-05-28

    申请号：US09413078

    申请日：1999-10-05

    申请人： Geoff Wotton ,  Steve O. Rasmussen ,  John D. Rhodes

    发明人： Geoff Wotton ,  Steve O. Rasmussen ,  John D. Rhodes

    IPC分类号： B41J201

    CPC分类号： B65H5/224 ,  B41J11/007 ,  B41J11/0085 ,  B41J11/06

    摘要： A belt-type support for moving print media such as paper through a printer includes a flexible belt that is supported in a manner such that friction is minimized and such that the paper that is supported on the belt is advanced precisely through the print zone of the printer. The support is provided in conjunction with a uniform distribution of vacuum pressure to the paper carried by the belt. In one preferred embodiment, there is provided a rigid, flat platen for supporting a uniformly porous belt. The platen has a number of rollers on its surface to minimize the friction developed between the platen surface and the moving belt. The platen surface also includes ports to provide a uniform distribution of vacuum pressure to the porous belt. In another embodiment, sliders are carried in the support surface of the platen to minimize frictional contact with the moving belt. Another embodiment includes substantially flat platen surface with a low-friction material layer disposed between the belt and platen surface for facilitating movement of the belt over the platen.

    摘要翻译： 用于通过打印机移动诸如纸张的打印介质的带式支撑件包括柔性带，该柔性带以使得摩擦最小化的方式被支撑，并且使得被支撑在带上的纸精确地前进通过印刷区 打印机。 该支撑件与真空压力的均匀分布一起提供给由皮带承载的纸张。 在一个优选实施例中，提供了一种用于支撑均匀多孔带的刚性平坦压板。 压板在其表面上具有多个辊，以最小化在压板表面和移动带之间产生的摩擦。 压板表面还包括端口，以向多孔带提供均匀的真空压力分布。 在另一个实施例中，滑块被承载在压板的支撑表面中以最小化与移动带的摩擦接触。 另一个实施例包括基本平坦的压板表面，其中设置在带和压板表面之间的低摩擦材料层，以便于带移动到压板上。

    Heated vacuum platen
    5.
    发明授权
    Heated vacuum platen 失效
    加热真空压板

    公开(公告)号：US06454478B2

    公开(公告)日：2002-09-24

    申请号：US09878632

    申请日：2001-06-11

    申请人： Geoff Wotton ,  Steve O. Rasmussen

    发明人： Geoff Wotton ,  Steve O. Rasmussen

    IPC分类号： B41J201

    CPC分类号： B41J11/0085 ,  B41J11/002 ,  B41J11/007 ,  B41J11/06

    摘要： Predetermined geometric constructs reduce heat loss in a vacuum platen and assist in the reduction of paper cockle in ink-jet printing. A vacuum platen for supporting media during printing is provided with a plurality of heating elements and surfaces interspersed with vacuum ports. The heater elements are laid into surface channels of the platen such that an insulative gap separates the heaters from the main platen support structure. In an alternative embodiment, an insulative gasket is provided for the gap.

    摘要翻译： 预定的几何结构减少真空压板中的热损失，并有助于在喷墨打印中减少纸。。 在打印期间用于支撑介质的真空压板设置有散布有真空端口的多个加热元件和表面。 加热器元件被放置在压板的表面通道中，使得绝缘间隙将加热器与主压板支撑结构分开。 在替代实施例中，为间隙提供绝缘垫圈。

    Heated vacuum platen
    8.
    发明授权
    Heated vacuum platen 失效
    加热真空压板

    公开(公告)号：US06315404B1

    公开(公告)日：2001-11-13

    申请号：US09469128

    申请日：1999-12-21

    申请人： Geoff Wotton ,  Steve O. Rasmussen

    发明人： Geoff Wotton ,  Steve O. Rasmussen

    IPC分类号： B41J201

    CPC分类号： B41J11/0085 ,  B41J11/002 ,  B41J11/007 ,  B41J11/06

    摘要： Predetermined geometric constructs reduce heat loss in a vacuum platen and assist in the reduction of paper cockle in ink-jet printing. A vacuum platen for supporting media during printing is provided with a plurality of heating elements and surfaces interspersed with vacuum ports. The heater elements are laid into surface channels of the platen such that an insulative gap separates the heaters from the main platen support structure. In an alternative embodiment, an insulative gasket is provided for the gap.

    摘要翻译： 预定的几何结构减少真空压板中的热损失，并有助于在喷墨打印中减少纸。。 在打印期间用于支撑介质的真空压板设置有散布有真空端口的多个加热元件和表面。 加热器元件被放置在压板的表面通道中，使得绝缘间隙将加热器与主压板支撑结构分开。 在替代实施例中，为间隙提供绝缘垫圈。

    Inkjet printing apparatus with media handling system providing small bottom margin capability
    9.
    发明授权
    Inkjet printing apparatus with media handling system providing small bottom margin capability 有权
    具有介质处理系统的喷墨打印设备提供小的底部边距能力

    公开(公告)号：US6139140A

    公开(公告)日：2000-10-31

    申请号：US163274

    申请日：1998-09-29

    申请人： Steve O Rasmussen ,  Richard A Kelley ,  Brooke E Smith ,  Geoff Wotton

    发明人： Steve O Rasmussen ,  Richard A Kelley ,  Brooke E Smith ,  Geoff Wotton

    IPC分类号： B41J11/00 ,  B41J13/14 ,  B41J2/01 ,  B41J13/10

    CPC分类号： B41J13/14 ,  B41J11/005 ,  B41J11/008

    摘要： Accurate advance of a media sheet is achieved by carrying the media sheet on a belt loop support. 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 under a printhead adjacent to the print zone. The location of a lead edge of the guide shim relative to the print zone determines the minimum bottom margin for the inkjet printing device. The guide shim presses the media sheet to the belt support and keeps the media sheet flat under the inkjet printhead as the printhead moves over the media sheet.

    摘要翻译： 通过将介质片携带在皮带环支架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，将上游夹送辊通过邻近打印区域的打印头。 引导垫片的引线边缘相对于打印区域的位置决定了喷墨打印设备的最小底部边距。 当打印头移动到介质片上时，导向垫片将介质片材压到皮带支架上，并将介质片材平放在喷墨打印头下方。