Method and apparatus for producing ink intensity modulated ink jet
printing
    1.
    发明授权
    Method and apparatus for producing ink intensity modulated ink jet printing 失效
    用于生产油墨强度调制喷墨印刷的方法和设备

    公开(公告)号:US5764252A

    公开(公告)日:1998-06-09

    申请号:US470796

    申请日:1995-06-06

    IPC分类号: B41J2/21 B41J2/01

    CPC分类号: B41J2/2114

    摘要: Gray scale ink jet printing method and apparatus produce a high quality image having varying color intensities. This is achieved by mixing a colored phase change ink with varying amounts of a clear phase change ink base, thereby producing multiple gray scale levels of each color. The mixing either can be performed prior to placement of the phase change ink in the printer, or can be performed within the printer to produce different levels of color intensity during the printing process.

    摘要翻译: 灰度喷墨打印方法和装置产生具有不同颜色强度的高质量图像。 这是通过将有色相变油墨与不同量的透明相变油墨基底混合,从而产生每种颜色的多个灰度级水平来实现的。 混合之前可以在将相变油墨放入打印机之前执行,或者可以在打印机内执行,以在打印过程中产生不同程度的颜色强度。

    Method for enhancing resolution in a printed image
    2.
    发明授权
    Method for enhancing resolution in a printed image 失效
    提高打印图像分辨率的方法

    公开(公告)号:US6049393A

    公开(公告)日:2000-04-11

    申请号:US974578

    申请日:1997-11-19

    IPC分类号: G06K15/10 G06K15/00

    CPC分类号: G06K15/102 G06K2215/0074

    摘要: A method for increasing resolution in a image printed by an ink jet printer is provided. The method selectively removes painted pixels from a bit map to ensure that no two adjacent pixels are painted by the same ink jet. The method removes painted pixels in a manner that preserves the edges of characters and other features. The resulting processed bit map ensures that an individual print head jet always addresses at least one non-painted/blank pixel after each painted pixel it fills. This allows the speed of the receiving surface relative to the print head to be increased to thereby allow for greater resolution in the printed image for a given print time.

    摘要翻译: 提供了一种用于提高由喷墨打印机打印的图像中的分辨率的方法。 该方法从位图中选择性地去除绘制的像素,以确保没有两个相邻的像素被相同的喷墨喷涂。 该方法以保留字符和其他特征边缘的方式删除绘制的像素。 所得到的经处理的位图确保单个打印头喷射器在其填充的每个被绘制的像素之后总是至少处理至少一个非涂漆/空白像素。 这允许接收表面相对于打印头的速度增加,从而允许在给定打印时间内打印图像中的更高分辨率。