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92 条记录 (耗时 0.021 秒)

    Printing device
    11.
    发明授权
    Printing device 失效
    印刷装置

    公开(公告)号：US4173927A

    公开(公告)日：1979-11-13

    申请号：US935895

    申请日：1978-08-22

    申请人： Dick Van Kempen ,  Marius Quirijnen

    发明人： Dick Van Kempen ,  Marius Quirijnen

    IPC分类号： B41J9/48 ,  B41J25/308 ,  B41J7/92

    CPC分类号： B41J25/308 ,  B41J9/48

    摘要： A printing device in which a roll having a plurality of characters disposed thereon is displaceable with respect to at least one printing hammer. The printing hammer cooperates with a coil which, when excited, generates a field which by cooperation with a stationary field, puts the hammer into motion and drives it against the character on the roll to be printed. The hammer is arranged to be movable in the device so that the distance between the hammer and the roll is adjustable. A control device is provided which measures the hammer flying time and compares this time with a nominal flying time and which, in the case of a difference, displaces the hammer relative to the roll and also changes the driving force of the hammer.

    摘要翻译： 一种打印装置，其中具有设置在其上的多个字符的卷可相对于至少一个打印锤移动。 打印锤与线圈配合，该线圈在被激励时产生与静止场合作的场，将锤子推入运动中并将其驱动抵靠待打印的卷筒上的字符。 锤子被布置成在装置中可移动，使得锤和辊之间的距离是可调节的。 提供一种控制装置，其测量锤子飞行时间，并将该时间与标称飞行时间进行比较，并且在差异的情况下，相对于滚筒使锤子移位，并且还改变锤的驱动力。

    Hammer driver controller for impact printers
    12.
    发明授权
    Hammer driver controller for impact printers 失效
    冲击打印机的锤式驱动控制器

    公开(公告)号：US4102265A

    公开(公告)日：1978-07-25

    申请号：US767714

    申请日：1977-02-11

    申请人： David R. Deetz

    发明人： David R. Deetz

    IPC分类号： B41J9/38 ,  B41J9/42 ,  B41J9/48 ,  B41J7/92

    CPC分类号： B41J9/42 ,  B41J9/38 ,  B41J9/48

    摘要： To obtain a substantially uniform print density while printing at high speed with a hammer-type impact printer, the hammer is electromagnetically driven in response to an energizing current which decays with a predetermined time constant from a high initial level toward a set point level which is automatically adjusted for different classes of characters so that the impact energy imparted to the hammer is regulated as a function of the character being printed. To adaptively absorb the shock forces generated by the rebounding hammer, the energizing current for the electromagnetic driver is reduced to a predetermined fraction of the set point level.

    摘要翻译： 为了在用锤式冲击打印机高速打印的同时获得基本上均匀的打印浓度，响应于以预定时间常数从高初始水平向设定点水平衰减的激励电流来对锤进行电磁驱动， 根据不同等级的字符自动调节，使得施加到锤子的冲击能量作为被打印字符的函数来调节。 为了自适应地吸收由回弹锤产生的冲击力，电磁驱动器的激励电流减小到设定点电平的预定分数。

    Electrical print impression control
    13.
    发明授权
    Electrical print impression control 失效
    电打印印象控制

    公开(公告)号：US3866533A

    公开(公告)日：1975-02-18

    申请号：US31830972

    申请日：1972-12-26

    申请人： IBM

    发明人： GILBERT RICHARD L ,  HAMILTON JOHN G ,  HASEGAWA TATSUO ,  ROSS CHARLES O

    IPC分类号： B41J7/36 ,  B41J1/20 ,  B41J9/46 ,  B41J9/48 ,  G06K15/06 ,  G06K15/08 ,  B41J7/92

    CPC分类号： B41J1/20 ,  B41J9/48

    摘要： Impression control for an impact printer is provided by changing the width of the pulse applied to the print hammers in accordance with the thickness of the forms on which printing is being performed and in accordance with the voltage of the source energizing the print hammers, so as to maintain a constant impact force to provide uniform print density for different forms thicknesses. Misregistration of characters caused by a variation in the rate of movement of the print hammer is compensated for by changing the start time of the pulse energizing the hammer.

    摘要翻译： 冲击式打印机的印象控制是通过根据正在进行打印的形式的厚度和根据对打印锤激励的源的电压来改变施加到打印锤的脉冲的宽度来提供的，以便 以保持恒定的冲击力，以为不同的形状厚度提供均匀的印刷密度。 通过改变激励锤的脉冲的开始时间来补偿由打印锤的移动速率的变化引起的字符的对准。

    Hammer driving circuits for high-speed printers
    14.
    发明授权
    Hammer driving circuits for high-speed printers 失效
    用于高速打印机的HAMMER驱动电路

    公开(公告)号：US3628100A

    公开(公告)日：1971-12-14

    申请号：US3628100D

    申请日：1970-09-08

    申请人： DATA PRINTER CORP

    发明人： ZETTLER JOHN F

    IPC分类号： B41J9/48 ,  H03K17/64 ,  H01H47/32

    CPC分类号： B41J9/48 ,  H03K17/64

    摘要： Control circuits for high-speed printers having solenoid actuated hammers, in which for each hammer the solenoid is connected through a current-control switch to a source of current, for each switch there is an AND gate having two input terminals, one being a voltage tolerant terminal connected to a register for a logic signal indicating when the hammer is to be fired, and the other being a control terminal connected to a common terminal for all of the gates that is adapted to be connected to a control pulse generator of precise level and duration.

    Printer and method of adjusting print density
    15.
    发明授权
    Printer and method of adjusting print density 失效
    打印机和调整打印浓度的方法

    公开(公告)号：US5797690A

    公开(公告)日：1998-08-25

    申请号：US687024

    申请日：1996-07-25

    申请人： Eiji Iwamura ,  Tetsuro Ogino

    发明人： Eiji Iwamura ,  Tetsuro Ogino

    IPC分类号： B41J3/54 ,  B41J2/23 ,  B41J2/30 ,  B41J7/00 ,  B41J9/48 ,  B41J29/46

    CPC分类号： B41J2/23

    摘要： A printer in which print densities of print heads can be adjusted simply and rapidly and set to have an optimum impact force, and a method of adjusting a print density are provided. Concretely, print density patterns which can be set at regular steps toward the high and low density sides of a predetermined density are generated. On the basis of the print density patterns, printing is conducted on a recording medium. A pattern in which a desired print density appears is selected and the print densities of the print heads are absolutely or relatively adjusted.

    摘要翻译： 可以简单快速地调节打印头的打印浓度并设置为具有最佳冲击力的打印机，并且提供调整打印浓度的方法。 具体地，产生可以以规定浓度的高密度侧和低密度侧的规则台阶设定的印刷浓度图案。 基于打印浓度图案，在记录介质上进行打印。 选择出现期望的打印浓度的图案，并且打印头的打印浓度是绝对的或相对调节的。