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    • 4. 发明授权
    • Method of printing thermal media by aligning image
    • 通过对齐图像打印热介质的方法
    • US07250958B2
    • 2007-07-31
    • US11154526
    • 2005-06-17
    • Hyoung-il KimKyung-pyo Kang
    • Hyoung-il KimKyung-pyo Kang
    • B41J2/315
    • B41J2/335B41J3/60B41J11/42B41J29/393
    • A method for printing on a thermal medium by aligning test patterns comprises the steps of feeding a thermal medium to a print starting position of the medium beyond a predetermined distance from a heating elements of a thermal printhead; printing a first test pattern when a front edge of the medium is detected by an edge detection sensor; measuring a first distance between the front edge and the first test pattern by detecting the first test pattern using the edge detection sensor; rotating the thermal printhead to face the second surface; feeding the thermal medium to the print starting position of the medium is beyond predetermined distance the thermal printhead; printing a predetermined second test pattern when the front edge of the medium is detected by the edge detection sensor while feeding the medium; and measuring a second distance between the front edge and the second test pattern.
    • 通过对准测试图案在热介质上打印的方法包括以下步骤:将热介质馈送到距离热打印头的加热元件预定距离的介质的打印开始位置; 当边缘检测传感器检测到介质的前边缘时,打印第一测试图案; 通过使用边缘检测传感器检测第一测试图案来测量前边缘和第一测试图案之间的第一距离; 旋转热敏打印头以面对第二表面; 将热介质供给到介质的打印开始位置超过预定距离的热打印头; 当馈送介质时边缘检测传感器检测到介质的前边缘时,打印预定的第二测试图案; 以及测量所述前边缘和所述第二测试图案之间的第二距离。
    • 5. 发明授权
    • Method of compensating sheet feeding errors in ink-jet printer
    • 补偿喷墨打印机进纸错误的方法
    • US07083251B2
    • 2006-08-01
    • US10753333
    • 2004-01-09
    • Kyung-pyo KangHyoung-il Kim
    • Kyung-pyo KangHyoung-il Kim
    • B41J29/393
    • B41J11/42
    • A method of compensating a sheet feeding error in an ink-jet printer includes printing a test pattern on the sheet; scanning the printed test pattern using the image sensor and measuring a distance W1 between a starting point X1s and an ending point X1e of the test pattern; driving the feeding roller and moving the sheet to a set distance Hm so that the set distance Hm is shorter than a length of the test pattern in a sheet feeding direction; scanning the test pattern using the image sensor and measuring a distance W2 between a starting point X2s and an ending point X2e of the test pattern; calculating a distance H, along which the sheet is actually fed, from a difference between the distances W2 and W1; calculating a feeding error E of the sheet from a difference between the feeding distance H and the set distance Hm; and compensating for the sheet feeding error E at the set distance Hm.
    • 一种补偿喷墨打印机中的送纸误差的方法包括在纸张上印刷测试图案; 使用图像传感器扫描印刷的测试图案,并且测量在起始点X 1和S 1之间的距离W 1 1 模式; 从距离W 2和W 1之间的差计算出实际馈送纸张的距离H; 根据供给距离H和设定距离H >m之间的差计算纸张的进给误差E; 并且在设定的距离H andm处补偿送纸误差E.
    • 8. 发明授权
    • Method for reducing printing position error and image forming apparatus using the same
    • 降低打印位置误差的方法和使用其的成像装置
    • US07192205B2
    • 2007-03-20
    • US11375049
    • 2006-03-15
    • Kyung-pyo KangHyoung-il Kim
    • Kyung-pyo KangHyoung-il Kim
    • B41J11/44B65H7/02G03G15/00
    • B41J11/42Y10S271/902
    • An apparatus and method are provided for reducing a printing position error, in which the method includes the steps of (a) driving an encoder wheel as many times as a predetermined number of forward counts at a predetermined initial acceleration, thereby making the edge of a printing paper become separated from a sensing unit and conveyed in a forward direction, (b) driving the encoder wheel at the predetermined initial acceleration and conveying the printing paper in a backward direction, (c) calculating a difference value between the number of backward counts of the encoder wheel from a start time of the backward driving to a point when the sensing unit detects the edge of the printing paper and the number of forward counts, and (d) repeating the steps (a) through (c) for a designated number of times while varying the predetermined initial acceleration, and setting an initial acceleration corresponding to a smallest value among the difference values as the initial acceleration for driving the encoder wheel. Therefore, in the case of separately printing data on one printing paper several times, the resolution of a printed image can be improved by reducing the printing position error.
    • 提供一种用于减少打印位置误差的装置和方法,其中该方法包括以下步骤:(a)以预定的初始加速度将编码器轮驱动多达预定数量的前进计数,从而使得 打印纸与感测单元分离并向前传送,(b)以预定的初始加速度驱动编码轮,并向后传送打印纸;(c)计算反向计数之间的差值 的编码器轮从反向驱动的开始时刻到感测单元检测到打印纸的边缘的位置和前进计数的数量,以及(d)重复步骤(a)至(c)为指定的 次数,同时改变预定的初始加速度,并且将与差值中的最小值相对应的初始加速度设定为dr的初始加速度 放弃编码轮。 因此,在一次打印纸上分别打印数据的情况下,可以通过减少打印位置误差来提高打印图像的分辨率。
    • 9. 发明申请
    • Image forming apparatus
    • 图像形成装置
    • US20060251456A1
    • 2006-11-09
    • US11357136
    • 2006-02-21
    • Kyung-pyo KangHyoung-il Kim
    • Kyung-pyo KangHyoung-il Kim
    • B41J29/38B41J11/00
    • B41J11/008
    • An image forming apparatus constantly forms images of the same length at each of printing periods by conveying a printing medium at a constant speed. The image forming apparatus includes a driving motor to provide a driving force, a conveying unit to convey a printing medium by receiving the driving force from the driving motor, and a printer head to form images according to printing data on each line of the printing medium at a predetermined printing period (Cp), wherein the printing period (Cp) is set as a positive integer multiplied by a cogging torque cycle of the driving motor.
    • 图像形成装置通过以恒定的速度传送打印介质,在每个打印周期不间断地形成相同长度的图像。 图像形成装置包括用于提供驱动力的驱动电机,通过接收来自驱动电机的驱动力来传送打印介质的传送单元和打印头,以根据打印介质的每一行上的打印数据形成图像 在预定打印周期(Cp)中,其中打印周期(Cp)被设置为正整数乘以驱动马达的齿槽转矩循环。