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    • 44. 发明授权
    • Thermal printer having a controller for controlling paper feed operation
and a printing method thereof
    • 热敏打印机具有用于控制供纸操作的控制器及其打印方法
    • US5248993A
    • 1993-09-28
    • US755975
    • 1991-09-06
    • Genzi OshinoYutaka ShibataHideaki Matsuda
    • Genzi OshinoYutaka ShibataHideaki Matsuda
    • B41J2/355B41J11/42G06K15/02H04N1/00
    • G06K15/028B41J11/42B41J2/355H04N1/0057G06K2215/0077
    • The invention relates to a thermal printer and a printing method thereby, using a step motor for feeding a sheet of paper, a scanning type thermal head and a control unit by which the paper feeding operation is temporarily stopped and the printing operation is restarted after the stopped period. This thermal printer further comprises a delay drive unit which drives the thermal head with delay of one or two clock periods, predetermined as a control parameter for this printing operation, by a phase switch timing point for the step motor, in response to the time-lag defined by the phase switch timing point to an actual paper feeding motion; and a pre-print unit which outputs a command signal to begin the printing operation of the thermal head for printing one or more times the print data which follows the final print data of when the paper feeding operation was stopped, prior to the above described regular drive operation of the thermal head at the restart of the printing operation. Whereby this thermal printer can provide a high quality print without any print gaps and unclear prints due to the interruption of the printing operation.
    • 本发明涉及一种热敏打印机和一种打印方法,由此使用步进马达来馈送纸张,扫描型热敏头和控制单元,通过该打印机暂停停止进纸操作并且在打印操作重新开始之后重新开始打印操作 停止期 该热敏打印机还包括延迟驱动单元,响应于时间驱动单元,该延迟驱动单元以预定作为该打印操作的控制参数的一个或两个时钟周期的延迟来驱动热头,通过步进电机的相位切换定时点, 由相位开关定时点定义为实际进纸动作的滞后; 以及预打印单元,其输出命令信号以开始热敏打印头的打印操作,以便在上述规则之前打印一次或多次打印数据,该打印数据遵循进纸操作停止时的最终打印数据 在打印操作重新开始时驱动热头的操作。 由于打印操作的中断,该热敏打印机可以提供高质量的打印,而没有任何打印间隙和不清晰的打印。
    • 49. 发明授权
    • Bar code reader
    • 条码读取器
    • US07150401B2
    • 2006-12-19
    • US10975454
    • 2004-10-29
    • Matsuo YomogidaHideaki Matsuda
    • Matsuo YomogidaHideaki Matsuda
    • G06K7/10G02B26/00
    • G06K7/10613G06K7/14
    • A bar code reader provided with a laser diode (2) and a rotatory mirror (8) for deflecting a laser beam emitted by the laser diode for scanning, wherein a strip (20A) attached to the rotatory mirror (8), serving as a sensing indicator, is sensed at a position corresponding to a reading start edge of a laser beam scanning range of a bar code (1), and rotation of the rotatory mirror (8) is stopped for a predetermined time length after sensing of the strip (20A) and measurement of a scanning time length up to the final position of bar code reading, respectively, in the case of automatic scanning while rotation of the rotatory mirror (8) is locked upon measurement of half of a scanning time length up to the final position of the bar code reading after the sensing of the strip (20A) in the case of manual scanning, so that the laser beam can be recognized with ease, enabling focusing thereof or the manual scanning to be implemented.
    • 一种设有激光二极管(2)和旋转镜(8)的条形码阅读器,用于偏转由激光二极管发射的激光束进行扫描,其中附接到旋转镜(8)的条带(20A)用作 在对应于条形码(1)的激光束扫描范围的读取开始边缘的位置处感测感测指示器,并且在感测到条带之后旋转镜(8)的旋转停止预定时间长度 (20A),并且在自动扫描的情况下分别测量扫描时间长度直到条形码读取的最终位置,同时在扫描时间长度的一半的测量被锁定时旋转镜(8)的旋转被锁定 在手动扫描的情况下感测到条带(20A)之后的条形码读取的最终位置,使得可以容易地识别激光束,从而实现其聚焦或手动扫描。