Printer with vacuum platen having bimetallic valve sheet providing selectable active area
    2.
    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

    IPC分类号: B41F13/24

    摘要: 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.

    摘要翻译: 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。

    Printer with vacuum platen having bimetallic valve sheet providing selectable active area

    公开(公告)号:US06571702B2

    公开(公告)日:2003-06-03

    申请号:US09726964

    申请日:2000-11-29

    IPC分类号: B41F1324

    摘要: 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.

    Edge lift reduction for belt type transports
    5.
    发明授权
    Edge lift reduction for belt type transports 失效
    带式输送机边缘升降机

    公开(公告)号:US06497522B2

    公开(公告)日:2002-12-24

    申请号:US09906313

    申请日:2001-07-16

    IPC分类号: B41J1142

    摘要: An ink-jet apparatus is disclosed having a vacuum type print media transport subsystem for moving the print media through a printing zone. A transport belt is provided with an array of perforations such that vacuum flow is restricted. The perforations only pass vacuum induced airflow through the belt when over vacuum ported platen regions. In an alternative embodiment, belt lifting is controlled and substantially eliminated via vacuum ports associated with non-perforated regions of the transport belt.

    摘要翻译: 公开了一种具有用于通过打印区移动打印介质的真空型打印介质传送子系统的喷墨设备。 传送带设置有一排穿孔,使得真空流被限制。 当超过真空移动的压板区域时,穿孔仅通过真空引起的气流通过带。 在替代实施例中,通过与输送带的非穿孔区域相关联的真空端口控制皮带提升并基本消除。

    Service station and method for servicing drum printer
    6.
    发明申请
    Service station and method for servicing drum printer 有权
    服务站和滚筒打印机的维修方法

    公开(公告)号:US20050035990A1

    公开(公告)日:2005-02-17

    申请号:US10638508

    申请日:2003-08-11

    IPC分类号: B41J2/165

    摘要: A method for servicing a printhead includes moving the printhead along a first path away from a printing position adjacent a drum to a service position away from the drum, moving a service station carrying a printhead service element through an arc-shaped second path from a rest position to a servicing position, and conducting a service operation with the service element on the printhead at the service position.

    摘要翻译: 用于维护打印头的方法包括沿着第一路径移动打印头,所述第一路径远离与滚筒相邻的打印位置,远离滚筒的维修位置,使运送打印头服务元件的服务站通过圆弧形的第二路径从休息 位置到维修位置,并且在服务位置处与打印头上的服务元件进行服务操作。

    Linefeed control in belt-type printers
    7.
    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。

    Conductive heating of print media

    公开(公告)号:US06554514B2

    公开(公告)日:2003-04-29

    申请号:US09990827

    申请日:2001-11-16

    IPC分类号: B41J1102

    摘要: Heat is uniformly conducted to print media in an ink-jet printer in conjunction with the uniform application of vacuum pressure to the media for supporting the media as it is conveyed on a heated belt through the printer. The heat is applied to the media by conduction, in a manner that does not overheat the print head of the printer nor interfere with the trajectory of the droplets expelled from the print head. The heat is applied to the media in the print zone as well as regions on either side of the print zone where the media enters and exits the print zone. The amount of heat applied to each of these regions is independently controlled, and can be related to the physical characteristics of the particular type of print media or inks that are used.

    Conductive heating of print media
    9.
    发明授权
    Conductive heating of print media 有权
    导印加热打印介质

    公开(公告)号:US06336722B1

    公开(公告)日:2002-01-08

    申请号:US09412842

    申请日:1999-10-05

    IPC分类号: B41J201

    摘要: Heat is uniformly conducted to print media in an ink-jet printer in conjunction with the uniform application of vacuum pressure to the media for supporting the media as it is conveyed on a heated belt through the printer. The heat is applied to the media by conduction, in a manner that does not overheat the print head of the printer nor interfere with the trajectory of the droplets expelled from the print head. The heat is applied to the media in the print zone as well as regions on either side of the print zone where the media enters and exits the print zone. The amount of heat applied to each of these regions is independently controlled, and can be related to the physical characteristics of the particular type of print media or inks that are used.

    摘要翻译: 热量均匀地传送到喷墨打印机中打印介质,同时将均匀的真空压力施加到介质上,以便在介质通过打印机在加热的带上传送时支撑介质。 通过传导将热量施加到介质上,其方式不会使打印机的打印头过热,也不干扰从打印头排出的液滴的轨迹。 热量被施加到打印区域中的介质以及介质进入和退出打印区域的打印区域的任一侧上的区域。 施加到这些区域中的每一个区域的热量被独立地控制,并且可以与使用的特定类型的打印介质或油墨的物理特性有关。

    Service station architecture and method for drum printer
    10.
    发明授权
    Service station architecture and method for drum printer 有权
    服务站架构和鼓式打印机的方法

    公开(公告)号:US06913341B2

    公开(公告)日:2005-07-05

    申请号:US10631903

    申请日:2003-07-31

    CPC分类号: B41J2/16517

    摘要: Techniques are disclosed for servicing a printhead. In one exemplary technique, the printhead is moved along a path away from a printing position adjacent a drum to a service position away from the drum. A service operation is conducted on the printhead at the service position. The printhead is then moved back to the printing position to reposition the printhead adjacent the drum.

    摘要翻译: 公开了用于维修打印头的技术。 在一个示例性技术中,打印头沿远离鼓的打印位置的路径移动到远离鼓的维修位置。 在服务位置对打印头进行维修操作。 然后将打印头移回到打印位置,以重新定位打印头靠近滚筒。