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    • 31. 发明授权
    • Printer and feeding control method
    • 打印机和进料控制方法
    • US06960037B2
    • 2005-11-01
    • US10665478
    • 2003-09-22
    • Toshiya KojimaKatsumi Enomoto
    • Toshiya KojimaKatsumi Enomoto
    • B41J11/00B41J11/42
    • B41J11/0095B41J11/425
    • An ink jet head is fed in a main-scan direction to record one line on a recording paper. Thereafter, the recording paper is fed in a sub-scan direction for one line. A corrected feeding amount A is calculated by adding a correction value C1 to a basic feeding amount B. The correction value C1 is determined by a formula, C1=2·D·(R−½), wherein p represents an interval between dots recorded on recording paper in the sub-scan direction, and k represents a range of unevenness in the feeding amount caused by structural factors of sub-scan feeding means. For example, D=(p−k)/2. R is a random number in a range between 0 and 1. Gradation unevenness and/or black and white streaks caused by periodical feeding unevenness become inconspicuous since the correction value C1 is changed on a random basis.
    • 喷墨头沿主扫描方向进给,在记录纸上记录一条线。 此后,记录纸沿副扫描方向进给一行。 通过将校正值C 1添加到基本供给量B来计算校正进给量A.校正值C 1由公式C 1 = 2·D(R-½)确定,其中p表示间隔 在副扫描方向上记录在记录纸上的点之间,k表示由副扫描进给装置的结构因素引起的进给量的不均匀范围。 例如,D =(p-k)/ 2。 R是在0和1之间的范围内的随机数。由于校正值C 1随机地改变,所以由周期性进给不均匀引起的渐变不均匀性和/或黑白条纹变得不明显。
    • 39. 发明申请
    • Liquid ejection head, method of manufacturing liquid ejection head, and image forming apparatus
    • 液体喷射头,液体喷射头的制造方法和图像形成装置
    • US20080002001A1
    • 2008-01-03
    • US11812040
    • 2007-06-14
    • Katsumi EnomotoYasuhiko Maeda
    • Katsumi EnomotoYasuhiko Maeda
    • B41J2/045H04R17/00
    • B41J2/14233B41J2002/14459B41J2002/14491B41J2202/11B41J2202/18Y10T29/42
    • The liquid ejection head includes: a liquid ejection unit which includes nozzles ejecting liquid, pressure chambers connected with the nozzles and filled with the liquid, and piezoelectric elements pressurizing the liquid in the pressure chambers; a frame substrate which has a hole section passing through the frame substrate and is disposed on a side of the liquid ejection unit reverse to a side on which the nozzles are arranged, the hole section being defined with a lateral wall and corresponding to a common liquid chamber accumulating the liquid to be supplied to the pressure chambers; a cover plate which is arranged on a side of the frame substrate reverse to a side adjacent to the liquid ejection unit; and through electrodes which pass through the lateral wall of the frame substrate and are exposed on the side adjacent to the liquid ejection unit and the side adjacent to the cover plate, wherein the piezoelectric elements are applied with drive signals via the through electrodes.
    • 液体喷射头包括:液体喷射单元,其包括喷射喷嘴的喷嘴,与喷嘴连接并充满液体的压力室,以及对压力室中的液体加压的压电元件; 框架基板,其具有穿过框架基板的孔部分,并且布置在与布置有喷嘴的一侧相反的液体喷射单元的一侧,该孔部分限定有侧壁并对应于公共液体 储存要供应到压力室的液体的室; 盖板,布置在框架基板的与液体喷射单元相邻的一侧的一侧; 并且通过穿过框架基板的侧壁并暴露在与液体喷射单元相邻的一侧和与盖板相邻的一侧的电极,其中压电元件经由通孔施加驱动信号。