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    • 5. 发明授权
    • Ink jet printhead having a patternable ink channel structure
    • 喷墨打印头具有可图案化的墨水通道结构
    • US06183069B2
    • 2001-02-06
    • US09004765
    • 1998-01-08
    • Cathie J. BurkeMildred Calistri-YehDiane AtkinsonAlmon P. Fisher
    • Cathie J. BurkeMildred Calistri-YehDiane AtkinsonAlmon P. Fisher
    • B41J205
    • B41J2/1623B41J2/1604B41J2/1628B41J2/1629B41J2/1631B41J2/1632B41J2/1635B41J2/1642
    • An ink jet printhead is disclosed which has a heater plate containing the heating elements and driving circuitry means monolithographically formed on one surface thereof and the ink flow directing channel structure is formed on the heater plate using a layer of patternable material, so that all critical alignments are done directly on the heater plate. In one embodiment, the patternable material is a photosensitive polymer which is exposed using a mask to define the channel and reservoir pattern, which is then developed and cured. After curing, the patterned channel structure is polished to provide a smooth coplanar surface and a cover plate with an aperture therein is aligned with a loose tolerance to the channel structure and bonded thereto to complete the printhead. The aperture serves as both ink inlet and a portion of the ink reservoir. The channels are open at one end and serve as the droplet ejecting nozzles, while the other ends are connected to the reservoir. In one embodiment, the cover plate is transparent and the channel structure material is polyimide or polyarylene ether ketone.
    • 公开了一种喷墨打印头,其具有包含加热元件的加热器板和在其一个表面上以光学方式形成的驱动电路装置,并且使用可图案化材料层在加热器板上形成墨流动引导通道结构,使得所有关键对准 直接在加热器板上完成。 在一个实施方案中,可图案材料是使用掩模曝光以限定通道和储存器图案的光敏聚合物,其然后显影和固化。 固化后,对图案化的沟道结构进行抛光以提供平滑的共面表面,并且其中具有孔的盖板对准通道结构的松动公差并与其结合以完成打印头。 该孔用作墨水入口和墨水储存器的一部分。 通道在一端开口并用作液滴喷嘴,而另一端连接到储存器。 在一个实施例中,盖板是透明的,并且通道结构材料是聚酰亚胺或聚亚芳基醚酮。