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    • 7. 发明授权
    • Black text quality in printers using multiple black and color pens
    • 打印机使用多个黑色和彩色笔的黑色文字品质
    • US5455607A
    • 1995-10-03
    • US56959
    • 1993-05-03
    • W. Wistar RhoadsLance ClevelandAbdolreza Movaghar
    • W. Wistar RhoadsLance ClevelandAbdolreza Movaghar
    • B41J2/01B41J2/21B41J25/308
    • B41J25/3082B41J2/2103B41J25/308
    • Color inkjet printers commonly employ a plurality of print cartridges, usually either two or four, mounted in the printer carriage to produce a full spectrum of colors. In order to optimize print quality, it is desirable to minimize the distance between a thermal inkjet printhead and the media that is being printed on. In a multiple printhead printer only one printhead can be the closest one to the media due to the various mechanical tolerances of the printer. Since black text print quality is more sensitive to printhead-to-media distance than is color graphics quality, the overall print quality of both black text and color graphics is optimized by assuring that the black print cartridge is closest to the media. Disclosed is a method for determining the relevant tolerances affecting printhead-to-media distance, analyzing the tolerance values to determine the range of tolerances and the greatest variation between one print cartridge and another, such that a determined percentage of the sampled print cartridges fall within this variation. This value is then used to offset the black print cartridge carriage slot so that the black print cartridge will be closest to the media.
    • 彩色喷墨打印机通常采用多个安装在打印机托架中的两个或四个打印盒,以产生全色的颜色。 为了优化打印质量,期望使热喷墨打印头和正在打印的介质之间的距离最小化。 在多重打印头打印机中,由于打印机的各种机械公差,只有一个打印头与介质最接近。 由于黑色文字打印质量比彩色图形质量对打印头到媒体的距离更敏感,所以通过确保黑色打印墨盒最接近媒体来优化黑色文本和彩色图形的整体打印质量。 公开了一种用于确定影响打印头到介质距离的相关公差的方法,分析公差值以确定公差范围和一个打印盒与另一打印盒之间的最大变化,使得所确定的采样打印盒的百分比落在 这个变化。 然后将该值用于抵消黑色墨盒托架插槽,使黑色墨盒最接近介质。