Recording apparatus and liquid discharge method
    1.
    发明授权
    Recording apparatus and liquid discharge method 有权
    记录装置和液体排出方法

    公开(公告)号:US06988782B2

    公开(公告)日:2006-01-24

    申请号:US10293359

    申请日:2002-11-14

    IPC分类号: B41J29/38

    摘要: The invention intends to maintain a constant ink discharge amount among the recording heads, even in case a total pulse width of pulse voltages applied to heat generating resistors. For this purpose, a rank table is prepared in such a manner, even in a situation where a total pulse width of the pulses applied to the heat generating resistor is 3 μs or less whereby the ink discharge amount decreases with a decrease in the total pulse width, that a maximum reached temperature on the surface of the heat generating resistors at the application of a preheat pulse becomes higher with a decrease in the resistance of a rank resistor, and a pulse width P1 on the rank table is made longer thereby compensating a decrease in the ink discharge amount with a decrease in the total pulse width and maintaining a constant ink discharge amount.

    摘要翻译: 本发明即使在施加到发热电阻器上的脉冲电压的总脉冲宽度的情况下也能够在记录头之间保持恒定的墨水排出量。 为此,即使在施加到发热电阻器的脉冲的总脉冲宽度为3微米以下的情况下,也以这样的方式准备了排列表,从而随着总脉冲的减少,墨水排出量减少 宽度,在施加预热脉冲时发热电阻器表面上的最大达到温度随着等级电阻器的电阻的降低而增加,并且脉冲宽度P <1> 排列表越长,从而通过总脉冲宽度的降低来补偿墨水排出量的减少并保持墨水排出量的恒定。

    PRINTHEAD DRIVING METHOD, PRINTHEAD SUBSTRATE, PRINTHEAD, HEAD CARTRIDGE, AND PRINTING APPARATUS
    3.
    发明申请
    PRINTHEAD DRIVING METHOD, PRINTHEAD SUBSTRATE, PRINTHEAD, HEAD CARTRIDGE, AND PRINTING APPARATUS 有权
    PRINTHEAD驱动方式,PRINTHEAD基板,PRINTHEAD,HEAD CARTRIDGE和PRINTING APPARATUS

    公开(公告)号:US20080024534A1

    公开(公告)日:2008-01-31

    申请号:US11865306

    申请日:2007-10-01

    IPC分类号: B41J29/38 B41J2/05 B41J2/175

    摘要: An object of this invention is to prevent an increase in energy applied to a heating element and prolong the service life of a printhead even when the temperature of the printing element having a negative temperature coefficient rises and the resistance of the heating element decreases upon controlling a switching element for controlling a current flowing through the heating element so as to make energy as constant as possible. For this purpose, a printhead having a plurality of heating elements connected to a common power supply comprises: a switching element which is series-connected to the heating element and controls driving of the heating element at a voltage applied to a control terminal; a constant voltage source using a common power supply as a reference; a wiring resistance generated at a connection wiring line serial-connected to the heating element; and a voltage control circuit which controls to make the potential difference between both ends of the wiring resistance equal to the voltage of the constant voltage source when driving the heating element. Then, a current flowing through the heating element is made constant without any influence of the temperature of the heating element.

    摘要翻译: 本发明的目的是防止加热元件的能量增加,并延长打印头的使用寿命,即使当具有负温度系数的打印元件的温度升高并且加热元件的电阻在控制 开关元件,用于控制流过加热元件的电流,使能量尽可能的恒定。 为此,具有连接到公共电源的多个加热元件的打印头包括:开关元件,其串联连接到加热元件,并以施加到控制端子的电压来控制加热元件的驱动; 使用公共电源作为参考的恒定电压源; 在与所述加热元件串联的连接布线处产生的布线电阻; 以及电压控制电路,其控制在驱动所述加热元件时使所述布线电阻的两端之间的电位差等于所述恒定电压源的电压。 然后,流过加热元件的电流恒定,不受加热元件温度的任何影响。

    Ink jet recording apparatus utilizing solid semiconductor element
    6.
    发明授权
    Ink jet recording apparatus utilizing solid semiconductor element 失效
    利用固体半导体元件的喷墨记录装置

    公开(公告)号:US06769754B2

    公开(公告)日:2004-08-03

    申请号:US09879110

    申请日:2001-06-13

    IPC分类号: B41J2195

    摘要: To supply electromotive force to a solid semiconductor element in an ink tank in a non-contact and stable manner. An electromagnetic apparatus (a standstill electromotive force supply unit) is placed at a home position HP. When a carriage is at a standstill at this home position HP, if the electromagnetic apparatus is AC-driven, magnetic properties of both ends (magnetic poles) continue to change mutually and penetrate a solid semiconductor element in the ink tank on the carriage so that a constantly changing magnetic flux is generated. Electromotive force is generated by electromagnetic induction on a coil of the solid semiconductor element. In addition, if the carriage reciprocates during printing operation, the coil L of the solid semiconductor element crosses inside the magnetic flux due to a plurality of permanent magnets (a movement time electromotive force supply unit) arranged on a carrier path (range of movement), and so the electromotive force is generated on the coil by electromagnetic induction. Such electromotive force is converted into energy for activating and operating the solid semiconductor element.

    摘要翻译: 以非接触和稳定的方式向墨罐中的固体半导体元件提供电动势。 将电磁装置(静止电动势供给装置)置于原位HP。 当托架在该原始位置HP处于静止状态时,如果电磁装置是交流驱动的,则两端(磁极)的磁性能相互连续地变化并且穿透在滑架上的墨槽中的固体半导体元件,使得 产生不断变化的磁通量。 在固体半导体元件的线圈上通过电磁感应产生电动势。 此外,如果在打印操作期间托架往复运动,则固体半导体元件的线圈L由于布置在载体路径(移动范围)上的多个永磁体(移动时间电动势供给单元)而与磁通量交叉, 因此通过电磁感应在线圈上产生电动势。 这种电动势被转换成用于激活和操作固体半导体元件的能量。

    Substrate for recording head, recording head, recording apparatus, and method of inspecting substrate for recording head
    9.
    发明授权
    Substrate for recording head, recording head, recording apparatus, and method of inspecting substrate for recording head 失效
    用于记录头,记录头,记录装置的基板和用于记录头的基板的检查方法

    公开(公告)号:US06773096B2

    公开(公告)日:2004-08-10

    申请号:US10290531

    申请日:2002-11-08

    IPC分类号: B41J2065

    摘要: A substrate for a recording head includes a circuit through which current flows upon impression of a source voltage, irrespective of the operating state of an energy converting element, and a current cutoff means for cutting off current to the circuit in response to an entered control signal. A reset signal for achieving a standby state of the printing operation serves as the control signal. The current cutoff circuit is operated when the reset signal is active in an H state, and it cuts off the constant current. By cutting off the constant current, the leak current of a heater power source VH may be accurately measured, permitting determination of whether the source voltage wiring is properly insulated from other circuit elements of the substrate. The constant current may also be cut off in the standby state, in which printing is not performed, so as to reduce power consumption.

    摘要翻译: 用于记录头的基片包括电流,不管能量转换元件的工作状态如何,通过电流流过电源电压,以及电流切断装置,用于响应输入的控制信号切断电路电流 。 用于实现打印操作的待机状态的复位信号用作控制信号。 当复位信号处于H状态时,电流截止电路工作,并切断恒流。 通过切断恒定电流,可以精确地测量加热器电源VH的泄漏电流,从而可以确定源极电压布线是否适当地与衬底的其它电路元件绝缘。 在不进行打印的待机状态下也可以切断恒定电流,以便降低功耗。