Halftone reproduction by single spot multibeam laser recording
    1.
    发明授权
    Halftone reproduction by single spot multibeam laser recording 失效
    通过单点多波束激光记录进行半色调再现

    公开(公告)号:US5783356A

    公开(公告)日:1998-07-21

    申请号:US812451

    申请日:1997-03-06

    摘要: A method for generating a screened reproduction of a contone image comprises the steps of screening the contone image to obtain screened data representative for tones of the contone image and suitable for driving exposure of microdots on a radiation sensitive imaging element; exposing the microdots according to the screened data by at least one set or plurality (p) of radiation beams (b), characterized in that at a point in time (t) at least two radiation beams of the set of radiation beams impinge on a particular microdot (m) of a scanline (l). In particular is described a method for making a lithographic printing plate comprising the abovementioned steps.

    摘要翻译: 用于产生连续色调图像的屏蔽再现的方法包括以下步骤:筛选连续色调图像以获得表示连续色调图像的色调的屏幕数据,并且适合于在辐射敏感成像元件上驱动微点的曝光; 根据所筛选的数据通过至少一组或多个(p)辐射束(b)暴露微点,其特征在于,在所述一组辐射束中的至少两个辐射束撞击在 扫描线(1)的特定微点(m)。 特别是描述了一种制备包含上述步骤的平版印刷版的方法。

    Direct thermal printing method and apparatus
    3.
    发明授权
    Direct thermal printing method and apparatus 失效
    直接热敏打印方法和设备

    公开(公告)号:US5815191A

    公开(公告)日:1998-09-29

    申请号:US584450

    申请日:1996-01-11

    CPC分类号: B41J2/325

    摘要: A method and apparatus is provided for operating a direct electrostatic printer whereby no printer adjustments are required by the operator. The direct thermal printer includes a print head and a variable speed motor for reproducing images on an imaging element. The method for operating the direct electrostatic printer includes the steps of: receiving medical image data representing the medical images; processing one or more printing prerequisites provided with the medical image data for controlling heating energy applied to the print head and for controlling the speed of the variable speed drive motor; generating a control signal from the printing prerequisites for controlling the speed of the variable speed drive motor; automatically configuring the printer in a plurality of operating modes using the control signal; passing the imaging element adjacent the print head by means of the variable speed drive motor; and heating the print head in accordance with the medical image data and the printing prerequisites to form the medical images on the imaging element. In addition, the printer is capable of operating in at least two modes, including a standard quality operating mode in which the variable speed drive motor is operated at a first speed, and at least one premium quality operating mode in which the variable speed drive motor is operated at a second speed slower than the first speed.

    摘要翻译: 提供了用于操作直接静电打印机的方法和装置,由此操作者不需要打印机调节。 直接热敏打印机包括用于在成像元件上再现图像的打印头和可变速电机。 用于操作直接静电打印机的方法包括以下步骤:接收表示医学图像的医学图像数据; 处理与用于控制施加到打印头的加热能量并用于控制变速驱动马达的速度的医学图像数据一起提供的一个或多个打印前提条件; 根据用于控制变速驱动电机的速度的打印前提产生控制信号; 使用所述控制信号以多种操作模式自动配置所述打印机; 通过变速驱动电机使成像元件与打印头相邻; 并且根据医学图像数据和打印前提条件加热打印头以在成像元件上形成医学图像。 此外,打印机能够以至少两种模式操作,包括以第一速度操作变速驱动电动机的标准质量操作模式,以及至少一个优质操作模式,其中变速驱动电动机 以比第一速度慢的第二速度操作。

    Method for thermal recording
    4.
    发明授权
    Method for thermal recording 失效
    热记录方法

    公开(公告)号:US06475709B2

    公开(公告)日:2002-11-05

    申请号:US09728467

    申请日:2000-11-30

    IPC分类号: B41J232

    CPC分类号: B41J2/4753 B41J2/32

    摘要: A method for recording an image on a thermographic material (m) provides a thermographic material, a transparent thermal head (TH) having energizable heating elements (Hi), and a radiation beam (L). The heating elements of the thermal head are activated and the radiation beam is passed through transparent parts of the thermal head. Herein, the total energy resulting from the thermal head and from the radiation beam has a level corresponding to a gradation of the image to be recorded. Further embodiments comprise e.g. holding the thermographic material on one and a same drum during both an imagewise exposing step and a heating step.

    摘要翻译: 用于在热成像材料(m)上记录图像的方法提供了热成像材料,具有可激励加热元件(Hi)的透明热敏头(TH)和辐射束(L)。 热敏头的加热元件被激活,辐射束通过热敏头的透明部分。 这里,由热头和辐射束产生的总能量具有与要记录的图像的灰度相对应的电平。 其他实施例包括例如 在成像曝光步骤和加热步骤期间将热成像材料保持在同一个鼓上。

    Automatic feeder
    5.
    发明授权
    Automatic feeder 失效
    自动送料器

    公开(公告)号:US4540166A

    公开(公告)日:1985-09-10

    申请号:US497733

    申请日:1983-05-24

    摘要: An automatic feeder for a photographic copying machine includes a housing and a plate for supporting a stack of originals which are consecutively conveyed towards a transparent exposure plate positioned on the copying machine. The feeder is provided with adjustable tappet rollers mounted against the exposure plate to receive a front edge of an original moved along the exposure plate, without damaging the front edge. The plate for supporting the stack of originals includes adjustable stops for adjusting the plate to differing formats of the originals being processed. An adjusting lever connected to the adjustable stops for adjusting the latter is operatively connected to an adjustment device for adjusting the position of tappet rollers along the exposure plate. Pivotable transport rollers are provided to hold the original against the exposure plate. The housing of the feeder is pivotable relative to the housing of the copying machine between an open and closed position.

    摘要翻译: 用于照相复印机的自动进纸器包括:外壳和用于支撑原稿叠的板,所述原稿堆叠被连续地朝向位于复印机上的透明曝光板传送。 进料器设置有可调节的挺杆辊,其安装在曝光板上以接收沿着曝光板移动的原稿的前边缘,而不损坏前边缘。 用于支撑原件堆的板包括用于将板调整到正在处理的原稿的不同格式的可调节止动件。 连接到用于调节后者的可调节止动件的调节杆可操作地连接到调节装置,用于调节沿着曝光板的挺杆辊的位置。 提供可转动的传送辊以将原稿保持在曝光板上。 馈送器的外壳可以在打开和关闭位置之间相对于复印机的外壳枢转。