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    • 1. 发明授权
    • Chip structure of inkjet printhead and method of estimating working life through detection of defects
    • 喷墨打印头的芯片结构和通过检测缺陷来估计工作寿命的方法
    • US06378978B1
    • 2002-04-30
    • US09630904
    • 2000-08-02
    • Charles C. ChangChieh-Wen WangMing-Ling LeeJhih-Ping LuChen-Yue ChengYuan-Liang Lan
    • Charles C. ChangChieh-Wen WangMing-Ling LeeJhih-Ping LuChen-Yue ChengYuan-Liang Lan
    • B41J201
    • B41J2/14072
    • An inkjet printhead chip structure and a method of estimating the working life through the detection of any defect on the chip structure. The method includes laying a metallic layer such as a tantalum layer over the chip and then shaping the metallic layer into a protective layer circuit. A portion of the metal protective layer covers the heating elements embedded in the chip. In printing, the heating elements heat up the ink to produce jets of ink. However, a portion of the heat is transferred to the metal protective layer thereby raising its temperature. Heat on the metal protective layer combined with any strayed residual ink bubbles that impinge upon the surface of the metal protective layer causes the metal to age. Since resistance of the metal protective layer will increase proportionally to the amount of aging, a measurement of the resistance is capable of estimating how much longer a given chip is suitable for use. Furthermore, if this special circuit layout runs across each long side of an ink slot, any cracks along the direction of the ink slot are detectable during resistance measurement.
    • 喷墨打印头芯片结构和通过检测芯片结构上的任何缺陷来估计工作寿命的方法。 该方法包括在芯片上铺设诸如钽层的金属层,然后将金属层成形为保护层电路。 金属保护层的一部分覆盖嵌入芯片中的加热元件。 在印刷中,加热元件加热油墨以产生喷墨。 然而,一部分热被转移到金属保护层,从而提高其温度。 金属保护层上的热量与撞击在金属保护层表面上的任何杂散的残余墨水泡结合使金属老化。 由于金属保护层的电阻与老化量成比例地增加,所以电阻的测量能够估计给定芯片适合使用多长时间。 此外,如果这种特殊电路布局贯穿于墨槽的每个长边,则在电阻测量期间可以检测沿墨槽方向的任何裂纹。
    • 3. 发明授权
    • Inkjet print head
    • 喷墨打印头
    • US06543887B2
    • 2003-04-08
    • US10004639
    • 2001-12-04
    • Charles C. ChangJhih-Ping LuShyh-Haur SuYuan-Liang Lan
    • Charles C. ChangJhih-Ping LuShyh-Haur SuYuan-Liang Lan
    • B21J2175
    • B41J2/17553B41J2/17513B41J2/1753
    • A common print head module that can accommodate either a single-color or multi-color inkjet print head comprises an ink cartridge having an ink output, and an inkjet chip arranged over the ink output. The ink cartridge internally includes ink channels that terminate through a surface of the ink output, wherein two adjacent ink channels are spaced apart by a channel wall. The channel wall has a top surface lower than the surface of the ink output where the ink channels terminate. The ink channels communicate with ink slots of the inkjet chip. When accommodating a single-color print head, the ink flows out through the ink channels over the channel wall. When accommodating a multi-color print head, the ink slots of the inkjet chip have slot walls that are sealed with the channel walls such that inks of different colors can be separately ejected through the ink slots.
    • 可以容纳单色或多色喷墨打印头的通用打印头模块包括具有墨水输出的墨盒和布置在墨水输出端上的喷墨芯片。 墨盒内部包括通过墨水输出表面终止的墨水通道,其中两个相邻墨水通道被通道壁隔开。 通道壁具有比油墨通道终止的墨水输出表面低的顶表面。 墨水通道与喷墨芯片的墨槽连通。 当容纳单色打印头时,油墨通过通道壁上的墨水通道流出。 当容纳多色打印头时,喷墨芯片的墨槽具有与通道壁密封的槽壁,使得可以通过墨槽分别喷射不同颜色的墨。
    • 5. 发明授权
    • Method and structure for measuring temperature of heater elements of ink-jet printhead
    • 用于测量喷墨打印头加热元件温度的方法和结构
    • US06382773B1
    • 2002-05-07
    • US09704027
    • 2000-11-03
    • Charles C. ChangChieh-Wen WangShyh-Haur Su
    • Charles C. ChangChieh-Wen WangShyh-Haur Su
    • B41J205
    • B41J2/04541B41J2/04563B41J2/0458B41J2/125B41J2/14129B41J2/14153
    • A method and a structure for measuring the temperature of heating elements of an ink-jet printhead are provided, wherein an extra metal layer or semiconductor layer is formed on the ink-jet chip having driving elements to precisely measure the temperature of each individual heating element. The structure includes: an ink-jet device including a heating element for heating liquid ink; a transistor driver for driving a transistor to control heating of the heating element; and a temperature-sensing layer located between the ink-jet device and the transistor driver and under the heating element, the temperature-sensing layer having two terminals, one connecting to the transistor and the other connecting to an electrode terminal connected to a printer, wherein the ink-jet device connects to the transistor driver through the temperature-sensing layer.
    • 提供了一种用于测量喷墨打印头的加热元件的温度的方法和结构,其中在具有驱动元件的喷墨芯片上形成多余的金属层或半导体层,以精确测量各个加热元件的温度 。 该结构包括:喷墨装置,包括用于加热液体油墨的加热元件; 用于驱动晶体管以控制加热元件的加热的晶体管驱动器; 以及位于喷墨装置和晶体管驱动器之间以及加热元件下方的温度感测层,所述温度感测层具有两个端子,一个连接到晶体管,另一个连接到连接到打印机的电极端子, 其中喷墨装置通过温度感测层连接到晶体管驱动器。
    • 7. 发明授权
    • Pressure control device
    • 压力控制装置
    • US06364474B1
    • 2002-04-02
    • US09465906
    • 1999-12-17
    • Charles C. ChangChieh-Wen WangI-Chung Hou
    • Charles C. ChangChieh-Wen WangI-Chung Hou
    • B41J2175
    • B41J2/17556B41J2/17503
    • A pressure control device for regulating the ink pressure of a multi-reservoir ink cartridge. The pressure regulator employs an external spring or springs plate assembly mounted between two neighboring ink reservoirs. The external surfaces of the spring or assembly are attached to the respective side face of the reservoirs. Each ink reservoir has at least a side face formed from a flexible non-elastic material. When all of the ink reservoirs are full, the spring or assembly is in a relaxed state. By withdrawing a small quantity of ink from each ink reservoir, atmospheric pressure exerts forces on the ink reservoirs leading to a small contraction. The resulting distortion of the spring or assembly produces a force that resists further contraction of the reservoirs. Since the pressures inside the reservoirs are smaller than external atmospheric pressure, a back-pressure that prevents any leakage of ink from the reservoirs is created. In addition, a pressure plate can be added to the spring means to squeeze the ink out of the reservoir more evenly.
    • 一种用于调节多储存器墨盒的墨压力的压力控制装置。 压力调节器采用安装在两个相邻墨水容器之间的外部弹簧或弹簧板组件。 弹簧或组件的外表面附接到储存器的相应侧面。 每个墨水容器至少具有由柔性非弹性材料形成的侧面。 当所有储墨器都已满时,弹簧或组件处于松弛状态。 通过从每个墨水容器中抽出少量的墨水,大气压力对墨水容器施加力,导致小的收缩。 所产生的弹簧或组件的变形产生抵抗储层的进一步收缩的力。 由于储存器内部的压力小于外部大气压,因此产生防止墨水从储存器泄漏的背压。 此外,可以将压力板加入到弹簧装置中以更均匀地将油墨挤出储存器。