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    • 5. 发明授权
    • Printhead with reduced interconnections to a printer
    • 打印机与打印机互连减少
    • US5541629A
    • 1996-07-30
    • US312489
    • 1994-09-26
    • Michael B. SaundersAndre GarciaS. Dana SeccombeRajeev BabyalJames R. Hulings
    • Michael B. SaundersAndre GarciaS. Dana SeccombeRajeev BabyalJames R. Hulings
    • B41J2/01B41J2/05B41J29/00G06K15/10
    • B41J2/04521B41J2/04541B41J2/04543B41J2/04546B41J2/0458G06K15/10G06K2215/0077
    • The interconnections for transmitting print commands from a printer to a printhead are reduced by the use of on-printhead circuitry. In a basic embodiment, the printhead driver circuitry includes a matrix of drivers controlled by gates, power and control interconnections. Interconnections are reduced by enabling rows and columns of drivers with the power and control interconnections. A multiplexer may also be added to further reduce control interconnections. In an advanced embodiment, the printhead driver circuitry includes a register for converting a serial stream of print enable signals from the printer into a format for applying such signals concurrently to switching devices for one or more heater resistors. An address generator on the printhead generates address signals in response to an address generating signal from the printer. The printer provides constant power to the printhead so that energizing of the heater resistors is a function of the address and print enable signals and not of the power. Variations on the basic and advanced embodiments are also shown and described.
    • 通过使用打印头电路来减少从打印机向打印头传送打印命令的互连。 在基本实施例中,打印头驱动器电路包括由门,功率和控制互连控制的驱动器矩阵。 通过启用功率和控制互连的驱动器行和列来减少互连。 还可以添加多路复用器以进一步减少控制互连。 在高级实施例中,打印头驱动器电路包括用于将来自打印机的打印使能信号的串行流转换为用于同时向一个或多个加热电阻器的切换装置施加这种信号的格式的寄存器。 打印头上的地址发生器响应于来自打印机的地址产生信号而产生地址信号。 打印机为打印头提供恒定的电力,以便加热电阻器的通电是地址和打印使能信号而不是功率的功能。 还显示和描述了基本和高级实施例的变化。
    • 7. 发明授权
    • Compound ink feed slot
    • 复合供墨槽
    • US5317346A
    • 1994-05-31
    • US845882
    • 1992-03-04
    • Andre Garcia
    • Andre Garcia
    • B41J2/05B41J2/14B41J2/16
    • B41J2/14145B41J2/14129B41J2002/14387
    • A thin film thermal ink jet printhead having a compound ink feed slot that includes a trench in the top surface of a silicon substrate and a plurality of slots extending from the bottom surface of the silicon substrate to the trench. A plurality of patterned thin film layers are disposed on the top surface of the silicon substrate apart from the trench, and a patterned ink barrier layer is disposed over the plurality of patterned thin film layers. The patterned ink barrier layer includes an opening generally in alignment with the elongated trench, and a plurality of openings that form ink containing chambers which are adjacent to the trench and in communication with the opening that is generally in alignment with the elongated trench. Ink is conveyed from outside the substrate through the slots and trench, and into the ink containing chambers. The patterned thin film layers on the silicon substrate include a metallization layer and a passivation layer overlying the metallization layer, and the trench is advantageously formed by overetching of the passivation layer to remove it from the region in which the trench is to be formed.
    • 一种薄膜热喷墨打印头,其具有复合供墨槽,所述复合供墨槽在硅衬底的顶表面中包括沟槽,以及从所述硅衬底的底表面延伸到所述沟槽的多个槽。 多个图案化的薄膜层设置在硅衬底的与沟槽之间的顶表面上,并且图案化的油墨阻挡层设置在多个图案化薄膜层上。 图案化油墨阻挡层包括通常与细长沟槽对准的开口,以及多个开口,其形成与沟槽相邻并与开口连通的含有腔室的多个开口,该开口通常与细长沟槽对准。 油墨从衬底外部通过槽和沟槽输送到油墨容纳室中。 硅衬底上的图案化薄膜层包括金属化层和覆盖金属化层的钝化层,并且沟槽有利地由钝化层的过蚀刻形成,以将其从要形成沟槽的区域移除。