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    • 1. 发明授权
    • Thermal printing apparatus
    • 热敏打印设备
    • US5051755A
    • 1991-09-24
    • US377999
    • 1989-07-11
    • Toshinori TakahashiItsuo TakanashiHideshi TanakaTerumi OharaKenichi MiyazakiHiroki KitamuraToru NibeTadao ShinyaYutaka MizoguchiKatsuhiko Terada
    • Toshinori TakahashiItsuo TakanashiHideshi TanakaTerumi OharaKenichi MiyazakiHiroki KitamuraToru NibeTadao ShinyaYutaka MizoguchiKatsuhiko Terada
    • B41J2/36H04N1/40H04N1/405
    • H04N1/40031B41J2/36H04N1/4055
    • A thermal printing apparatus prints input gradational images, characters and figures by using multilevel density regulates the levels of the densities representing the gradiational images etc. to be printed by a linear thermal head having n heating resistors arranged in a row. The printing apparatus is provided with a density control unit for regulating, for example, the multilevel durations for energizing the heating resistors in accordance with n gradational printing data each corresponding to a respective one of said resistors, and a data conversion unit, receiving as printing data a set of n original data for each a plurality of lines parallel with the row of n resistors, for producing p sets of n data for p split lines on the basis of the n original data, where p is an integer equal to or greater than two, each of the p split lines being disposed in an area in which the line corresponding to the printing data should be printed, in parallel with the row of n resistors, the p sets of n data being sequentially supplied to the density control unit set by set to print the original line corresponding to the printing data by printing the split lines corresponding to the original line split line by split line so by shifting the linear thermal head in a direction perpendicular to the row of n resistors every time each of the split lines is printed, that each of the n printing data is represented by p dots.
    • 热敏打印设备通过使用多级密度来对输入的渐变图像,字符和图形进行打印,调节由具有排列成一列的n个加热电阻器的线性热敏头打印的表示渐变图像等的浓度。 打印装置设置有密度控制单元,用于调节例如根据与各个所述电阻器相对应的n个等级打印数据激励加热电阻器的多级持续时间,以及数据转换单元,接收作为打印 数据一组n个原始数据,用于与n个电阻器行平行的多个行的每一行,用于基于n个原始数据产生p个分割行的p个数据集,其中p是等于或大于等于的整数 两个以上,每个p个分割线被布置在与n个电阻器的行并行地印刷与打印数据相对应的行的区域中,p个n个数据被依次提供给密度控制单元 通过设置来打印与打印数据相对应的原始行,通过分割线打印与原始分割线相对应的分割线,从而通过以直线形式移动线性热敏头 n每打印一次,每n个电阻线垂直于n行,n个打印数据中的每一个由p点表示。
    • 2. 发明授权
    • Thermal printing apparatus
    • 热敏打印设备
    • US5319391A
    • 1994-06-07
    • US552271
    • 1990-07-13
    • Toshinori TakahashiItsuo TakanashiHideshi TanakaTerumi OharaKenichi MiyazakiHiroki KitamuraToru NibeTadao ShinyaYutaka MizoguchiKatsuhiko Terada
    • Toshinori TakahashiItsuo TakanashiHideshi TanakaTerumi OharaKenichi MiyazakiHiroki KitamuraToru NibeTadao ShinyaYutaka MizoguchiKatsuhiko Terada
    • B41J2/36H04N1/40H04N1/405B41J2/32B41J2/355
    • H04N1/40031B41J2/36H04N1/4055
    • A thermal printing apparatus for printing input gradational images, characters and figures by using multilevel density which can appropriately regulate the levels of the densities representing the gradational images etc. to be printed by a linear thermal head having n heating resistors arranged in a line, the printing apparatus is provided with a density control unit for regulating, for example, the multilevel durations for energizing the heating resistors in accordance with n gradational printing data each corresponding to respective one of said resistors, and a data conversion unit, receiving a set of n original data for each line as the printing data, for producing p sets of n data for p split lines on the basis of the n original data, where p is an integer being equal to or greater than two, the p sets of n data being sequentially supplied to the density control unit set by set to print each line corresponding to the input gradational image, character and figure printing data as a plurality of split lines corresponding thereto, thereby increasing uniformity of density of print lines of pixels of the input gradational images, characters and figures by overlapping low density portions of dotes of adjacent split lines.
    • 一种热敏打印装置,用于通过使用多级密度来打印输入的渐变图像,字符和图形,其可以适当地调节表示等级图像的浓度的等级,以由具有排列成一行的n个加热电阻器的线性热敏头打印, 打印装置设置有密度控制单元,用于调节例如根据与各个所述电阻器相对应的n个等级打印数据激励加热电阻器的多级持续时间,以及数据转换单元,接收一组n 原始数据作为打印数据,用于基于n个原始数据产生p个分割行的p个数据集,其中p是等于或大于2的整数,n个数据的p个集合是 依次提供给通过设置设置的浓度控制单元将与输入的渐变图像相对应的每一行打印为字符和图形打印数据 多个对应的分割线,从而通过重叠相邻分割线的点的低密度部分来增加输入渐变图像,字符和图形的像素的打印线的浓度的均匀性。