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    • 8. 发明授权
    • Fault-tolerant dot-matrix printing
    • 容错点阵打印
    • US5124720A
    • 1992-06-23
    • US561556
    • 1990-08-01
    • Christopher A. Schantz
    • Christopher A. Schantz
    • B41J2/01B41J2/165B41J2/21B41J2/51B41J19/14H04N1/191
    • B41J2/2139H04N1/1906H04N1/1911B41J19/142H04N2201/0468
    • The invention is fault-tolerant dot-matrix printing that substitutes a tested functioning printing element for a malfunctioning printing element. A detector, such as a piezoelectric membrane drop detector, tests the printing elements for malfunctioning printing elements. Once a malfunctioning printing element is detected, either a detector or a substitution algorithm identifies which section of the printing elements the malfunctioning printing element resides in. The printer controller chooses a defect-free section to substitute for the defective section containing the malfunctioning printing element, disconnects the section containing the malfunctioning printing element, reroutes print signals from the defective section containing the malfunctioning printing element to the substitute section, and alters the scan path of the printhead so that the substitute section prints for itself as well as for the defective section.
    • 本发明是容错点阵打印,其替代测试功能的打印元件用于故障打印元件。 诸如压电膜滴检测器的检测器测试印刷元件以使印刷元件发生故障。 一旦检测到故障的打印元件,则检测器或替代算法识别故障打印元件所在的打印元件的哪一部分。打印机控制器选择无缺陷部分来代替包含故障打印元件的缺陷部分, 断开包含故障打印元件的部分,将包含故障打印元件的故障部分的打印信号重新路由到替代部分,并改变打印头的扫描路径,以便替代部分打印自身以及缺陷部分。