Thermal / Ultrasound Printer – NSL UP-X898MD Sony (Japan)

    0评论
    0out of 5

    82,500

    超声打印机(ordirect thermal printing)是digital printingprocess which produces a printed image by selectively heating coated热色纸, or热纸as it is commonly known, when the paper passes over the thermal打印头. The coating turnsblackin the areas where it is heated, producing an image. Two-colour direct thermal printers can print both black and an additionalcolour(oftenred) 通过应用at two differenttemperatures.rmal transfer printingis a very different method that uses a heat-sensitive ribbon instead of heat-sensitive paper, but uses similar thermal print heads.

    A thermal printer comprises these key components:

    • Thermal head: generates heat; prints on paper
    • 板条:馈送纸的橡胶辊
    • 弹簧:向热头施加压力,导致其接触热敏纸

    为了打印,温纸是英寸ted between the thermal head and the platen. The printer sends an电流to the加热元素of the thermal head, which generate heat. The heat activates the thermo-sensitive coloring layer of the thermosensitive paper, which changes color where heated. Such a printing mechanism is known as athermal system或者direct system. The heating elements are usually arranged as a line of small closely spaced dots.

    The paper is impregnated with a solid-state mixture of a dye and a suitable matrix; a combination of afluoranleuco dyeand anoctadecylphosphonic acid是一个例子。当矩阵在其熔点上方加热时,染料与酸反应,转移到彩色形式,然后在矩阵足够快地固化后,将变化的形式在亚稳态状态下保守(一个称为称为称为的过程热色素).

    Baidu