Print head maintenance method and apparatus with retractable wiper
    1.
    发明授权
    Print head maintenance method and apparatus with retractable wiper 失效
    带可伸缩刮水器的打印头维护方法和设备

    公开(公告)号:US5570117A

    公开(公告)日:1996-10-29

    申请号:US369613

    申请日:1995-01-06

    IPC分类号: B41J2/165

    CPC分类号: B41J2/16547 B41J2/1652

    摘要: A method and an apparatus (10) for cleaning an ink jet print head (12) draws contaminates from orifices (20) in the print head onto an orifice plate (14) and then wipes the orifice plate. The maintenance apparatus includes a purge cap (24) that has a recessed region (40) with an open end (36). The top side margins (42) of the open end define a periphery (44) around which a seal (60) is positioned. A positioning system (30) urges the orifice plate against the seal. A heating system (128) and a vacuum system (74) cooperate to create a differential pressure across the orifices to draw contaminates carried by liquid ink out of them and onto the orifice plate. A resilient wiper assembly (26) including a spring-mounted wiper blade (78) is positioned in and nominally extends outwardly of the recessed region of the purge cap. The positioning system moves the purge cap downwardly against the orifice plate so that the wiper blade engages and wipes the contamination from the orifice plate.

    摘要翻译: 用于清洁喷墨打印头(12)的方法和设备(10)将污染物从打印头中的孔(20)中抽出到孔板(14)上,然后擦拭孔板。 维护装置包括具有开口端(36)的凹陷区域(40)的净化帽(24)。 开口端的顶侧边缘(42)限定周边(44),密封件(60)围绕该周边定位。 定位系统(30)将孔板推向密封件。 加热系统(128)和真空系统(74)协作以产生穿过孔口的压差,以将液体墨水携带的污染物从它们中抽出并流到孔板上。 包括弹簧安装的刮水片(78)的弹性擦拭器组件(26)定位并且标称地延伸到清除盖的凹陷区域的外侧。 定位系统将吹扫帽向下移动抵靠孔板,使得刮水片与孔板接合并擦拭污染物。

    Ink jet printer having webs between stripper fingers
    2.
    发明授权
    Ink jet printer having webs between stripper fingers 失效
    喷墨打印机具有剥离手指之间的网

    公开(公告)号:US5710586A

    公开(公告)日:1998-01-20

    申请号:US379231

    申请日:1995-01-27

    摘要: A computer printer having a frame contained within a housing, a media transport and printing mechanism attached to the frame within the housing is provided with at least one debris shield positioned above the printing mechanism to protect it from falling debris. The at least one debris shield may be positioned below an air flow path generated by printer ventilation, and the printer may employ a transfer surface on which an image is generated prior to transfer to a media sheet, and above which the debris shield is positioned. Stripper fingers strip the media sheet from the transfer surface and webs between the stripper fingers form an air flow barrier to prevent debris transmission through gaps between the fingers.

    摘要翻译: 具有容纳在壳体内的框架,连接到壳体内的框架的介质传送和打印机构的计算机打印机设置有至少一个位于打印机构上方的碎片屏蔽件,以防止其掉落。 所述至少一个碎片防护罩可以位于通过打印机通风所产生的气流路径的下方,并且打印机可以在传送到介质片材之前使用其上产生图像的转印表面,并且在其上方设有碎片屏蔽件。 剥离器手指从传送表面剥离介质片材,并且剥离器指状物之间的网状物形成气流阻挡层,以防止碎片通过指状物之间的间隙传播。

    Ink jet printer
    3.
    发明授权
    Ink jet printer 失效
    喷墨打印机

    公开(公告)号:US5949462A

    公开(公告)日:1999-09-07

    申请号:US865904

    申请日:1997-05-30

    摘要: A computer printer having a frame contained within a housing, a media transport and printing mechanism attached to the frame within the housing is provided with at least one debris shield positioned above the printing mechanism to protect it from falling debris. The at least one debris shield may be positioned below an air flow path generated by printer ventilation, and the printer may employ a transfer surface on which an image is generated prior to transfer to a media sheet, and above which the debris shield is positioned.

    摘要翻译: 具有容纳在壳体内的框架,连接到壳体内的框架的介质传送和打印机构的计算机打印机设置有至少一个位于打印机构上方的碎片屏蔽件,以防止其掉落。 所述至少一个碎片防护罩可以位于通过打印机通风所产生的气流路径的下方,并且打印机可以在传送到介质片材之前使用其上产生图像的转印表面,并且在其上方设有碎片屏蔽件。

    Method for determining gray values in a printer
    4.
    发明授权
    Method for determining gray values in a printer 失效
    确定打印机灰度值的方法

    公开(公告)号:US06567186B1

    公开(公告)日:2003-05-20

    申请号:US09181063

    申请日:1998-10-27

    IPC分类号: G06F312

    摘要: The method of the invention converts colors resident in a first device color space to gray levels for reproduction in a color or monochrome rendering device. The method initially converts the color values resident in the first device color space to corresponding color values in a device independent color space. Next, the resulting color values in the device independent color space are converted to further color values in the same color space that correspond to color values resident in the color space of a target color rendering device. The further color values from the device independent color space are then converted to corresponding gray levels so that they may be rendered by either the target color rendering device or a different color or monochrome rendering device. The use of an intermediate gamut conversion within the device independent color space enables more precise gray representations to be achieved for certain color representations.

    摘要翻译: 本发明的方法将驻留在第一设备颜色空间中的颜色转换成用于在彩色或单色渲染设备中再现的灰度级。 该方法首先将驻留在第一设备颜色空间中的颜色值转换为与设备无关的颜色空间中的相应颜色值。 接下来,将设备独立颜色空间中产生的颜色值转换为与驻留在目标显色设备的颜色空间中的颜色值相对应的相同颜色空间中的另外的颜色值。 然后将来自设备独立颜色空间的另外的颜色值转换为相应的灰度级,使得它们可以由目标显色设备或不同的颜色或单色渲染设备渲染。 在设备独立颜色空间内使用中间色域转换可以实现某些颜色表示的更精确的灰色表示。

    System for printing a document with recurring images
    5.
    发明授权
    System for printing a document with recurring images 有权
    用于打印带有重复图像的文档的系统

    公开(公告)号:US07495794B1

    公开(公告)日:2009-02-24

    申请号:US09620617

    申请日:2000-07-21

    IPC分类号: G06F15/00

    CPC分类号: G06F17/211 G06F17/248

    摘要: A printing system for printing documents that includes a recurring image. The printing system includes a computer connected to a printer over a communication link. The computer generates a named sequence to represent the recurring image and a parameter. The parameter value provides the printer with information that can be used to optimize the processing and printing of the named sequence.

    摘要翻译: 用于打印包括重复图像的文档的打印系统。 打印系统包括通过通信链路连接到打印机的计算机。 计算机生成一个命名序列来表示循环图像和一个参数。 参数值为打印机提供可用于优化命名序列的处理和打印的信息。

    Postscript level 1 color correction
    6.
    发明授权
    Postscript level 1 color correction 失效
    后记1级色彩校正

    公开(公告)号:US6031628A

    公开(公告)日:2000-02-29

    申请号:US997514

    申请日:1997-12-19

    摘要: A PostScript-compatible printer accepts PostScript language commands that indicate both device-dependent and device-independent color specifications. Such a printer in accordance with the invention has a PostScript interpreter that implements Level 1 and Level 2 color rendering pipelines. In the Level 1 color rendering pipeline, the interpreter converts device-dependent color specifications to internal color specifications using a calibrated n-dimensional operation. In the Level 2 color rendering pipeline, the interpreter converts device-independent color specifications to device-dependent color specifications using a standard PostScript color rendering dictionary, and then passes such device-dependent color specifications into the Level 1 pipeline for further processing.

    摘要翻译: PostScript兼容打印机接受PostScript语言命令,指示设备相关和设备无关的颜色规范。 根据本发明的这种打印机具有实现1级和2级显色管线的PostScript解释器。 在1级色彩渲染管道中,解释器使用校准的n维操作将依赖于设备的颜色规格转换为内部颜色规格。 在2级色彩渲染管道中,解释器使用标准PostScript颜色渲染字典将设备无关的颜色规范转换为与设备相关的颜色规范,然后将这种依赖于设备的颜色规范传递到1级流水线进行进一步处理。