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    • 4. 发明授权
    • Method for operating sheet pick and feed systems for printing
    • 操作打印纸张进纸系统的方法
    • US06729613B2
    • 2004-05-04
    • US09974738
    • 2001-10-10
    • Michael Anthony Marra, IIIRandall David MayoBarry Baxter StoutJay William Vessels
    • Michael Anthony Marra, IIIRandall David MayoBarry Baxter StoutJay William Vessels
    • B65H720
    • B41J13/0018
    • One method operates a pick motor and a separate feed motor to pick and feed a sheet for printing. Desired pick and feed motor velocities are obtained from respective first and second functions of sheet position. Sheet position for obtaining both desired motor velocities is determined by the pick system until a predetermined event. The feed-system sheet position is synchronized to the pick-system sheet position upon the happening of the event. Sheet position for obtaining both desired motor velocities is determined by the feed system after the event. Another method operates a printer pick motor and includes starting picking by driving the pick motor in a first direction, to move a sheet forward, with an input sufficient to prevent any teetering transitions between peaks and valleys of an encoder sensor output which would be falsely counted as forward motion by a single-channel encoder. A further method operates a printer DC pick motor and includes driving the pick motor with a PWM signal which does not change polarity during picking of a sheet.
    • 一种方法操作拾取电动机和单独的进给电动机来拾取和供给用于打印的纸张。 从片材位置的各自的第一和第二功能获得期望的拾取和进给电机速度。 用于获得两个期望的电动机速度的纸张位置由拾取系统确定直到预定的事件。 在事件发生时,进纸系统纸张位置与拾取系统纸张位置同步。 用于获得两个期望的电动机速度的纸张位置由事件之后的进给系统确定。 另一种方法操作打印机拾取电动机,并且包括通过沿第一方向驱动拾取电动机来启动拾取,以使纸张向前移动,其输入足以防止编码器传感器输出的峰值和谷之间的任何歪斜转变将被错误地计数 作为单通道编码器的前进运动。 另一种方法操作打印机直流拾取电机,并且包括利用在拾取片材期间不改变极性的PWM信号驱动拾取电动机。
    • 6. 发明授权
    • Media pre-feed in intermittent printer
    • 间歇式打印机中的介质预送
    • US07178914B2
    • 2007-02-20
    • US10792499
    • 2004-03-03
    • Michael Anthony Marra, IIIRandall David MayoBarry Baxter Stout
    • Michael Anthony Marra, IIIRandall David MayoBarry Baxter Stout
    • B41J13/02B65H5/06
    • B41J13/0009
    • A printer (1) in which a first sheet (5) to be imaged by printhead (3) is followed by a trailing media sheet. The first sheet is stopped intermittently so that the printhead can traverse the first sheet to print a partial image. The trailing media sheet is stopped behind the first sheet and is moved intermittently until it reaches or is near nip rollers (9a, 9b). Exit rollers 11a, 11b, 11c, and 11d move the first sheet out of the printer. When the exit rollers and the nip roller move forward and backward together the first sheet may be exited before the nip rollers are reversed to align the second sheet. Alternatively, the first sheet may be moved backward during alignment. The intermittent movement of the sheets may be at different times and with the trailing sheet moved less times and longer amounts than the first sheet is moved.
    • 打印机(1),其中由打印头(3)成像的第一片材​​(5)后面是后置介质片材。 间歇地停止第一片,使得打印头可以穿过第一张片材以打印部分图像。 拖尾介质片停止在第一片后面并间歇地移动直到到达或靠近夹辊(9a,9b)。 出纸辊11a,11b,11c和11d将第一张纸从打印机中移出。 当出口辊和夹持辊一起向前和向后移动时,可以在夹持辊反转之前退出第一片以对准第二片。 或者,第一片可以在对准期间向后移动。 片材的间歇运动可以在不同的时间,并且后片材移动较少的次数,并且比第一片材移动的量更长。
    • 7. 发明申请
    • HAND HELD PRINTER COLOR MISALIGNMENT CORRECTION
    • 手持式打印机色彩缺失校正
    • US20090160894A1
    • 2009-06-25
    • US11959555
    • 2007-12-19
    • Karen Susan BarnardMichael Anthony Marra, IIIBarry Baxter Stout
    • Karen Susan BarnardMichael Anthony Marra, IIIBarry Baxter Stout
    • B41J29/38
    • B41J3/36
    • A method for correcting misalignment between a plurality of columns of color ink jetting nozzle arrays of a color printhead during printing with a hand held printer includes determining a misdirection angle of motion of the plurality of columns of color ink jetting nozzle arrays relative to a desired direction of motion of the hand operated printer; determining for each of the plurality of columns of color ink jetting nozzle arrays a respective usable nozzles subset to be used in printing a swath, based on the misdirection angle; determining an amount of shifting of at least one of the respective usable nozzles subsets to adjust for non-perpendicularity of the color ink jetting nozzle arrays relative to the desired direction of motion, based on the misdirection angle; and shifting the respective usable nozzles subset for a respective column based on the amount determined.
    • 一种用于校正在用手持式打印机打印期间彩色打印头的多列彩色喷墨喷嘴阵列之间的未对准的方法,包括:确定多列彩色喷墨喷嘴阵列相对于期望方向的偏移方向角度 的手动打印机的运动; 基于所述错误方向角度来确定所述多个彩色喷墨喷嘴阵列中的每一列,以用于打印条带的各个可用喷嘴子集; 基于所述错误方向角度,确定所述各个可用喷嘴子集中的至少一个的移动量以针对所述彩色喷墨喷嘴阵列相对于所述期望的运动方向的非垂直度进行调整; 以及基于确定的量移动相应列的各个可用喷嘴子集。
    • 9. 发明授权
    • Hand held printer color misalignment correction
    • 手持打印机颜色不对准校正
    • US08016413B2
    • 2011-09-13
    • US11959555
    • 2007-12-19
    • Karen Susan BarnardMichael Anthony Marra, IIIBarry Baxter Stout
    • Karen Susan BarnardMichael Anthony Marra, IIIBarry Baxter Stout
    • B41J3/36
    • B41J3/36
    • A method for correcting misalignment between a plurality of columns of color ink jetting nozzle arrays of a color printhead during printing with a hand held printer includes determining a misdirection angle of motion of the plurality of columns of color ink jetting nozzle arrays relative to a desired direction of motion of the hand operated printer; determining for each of the plurality of columns of color ink jetting nozzle arrays a respective usable nozzles subset to be used in printing a swath, based on the misdirection angle; determining an amount of shifting of at least one of the respective usable nozzles subsets to adjust for non-perpendicularity of the color ink jetting nozzle arrays relative to the desired direction of motion, based on the misdirection angle; and shifting the respective usable nozzles subset for a respective column based on the amount determined.
    • 一种用于校正在用手持式打印机打印期间彩色打印头的多列彩色喷墨喷嘴阵列之间的未对准的方法,包括:确定多列彩色喷墨喷嘴阵列相对于期望方向的偏移方向角度 的手动打印机的运动; 基于所述错误方向角度来确定所述多个彩色喷墨喷嘴阵列中的每一列,以用于打印条带的各个可用喷嘴子集; 基于所述错误方向角度,确定所述各个可用喷嘴子集中的至少一个的移动量以针对所述彩色喷墨喷嘴阵列相对于所述期望的运动方向的非垂直度进行调整; 以及基于确定的量移动相应列的各个可用喷嘴子集。