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发明授权
US07441877B2 Substrate having a plurality of common power supply wires and a plurality of common ground wires for inkjet recording head and inkjet recording head using the same 失效
具有多个公共电源线的基板和用于喷墨记录头的多个公共接地线以及使用其的喷墨记录头

Substrate having a plurality of common power supply wires and a plurality of common ground wires for inkjet recording head and inkjet recording head using the same
摘要：
Limitations on the number of recording elements capable of being simultaneously driven are relaxed so that driving voltage fluctuation falls within an allowable range. The substrate includes arrays of recording elements, common power supply wires extended from portions near one end portions of the arrays to portions near the other end portions thereof and connected to a power supply-side electrode pad through a position near the one end portions of the arrays, and common ground wires extended from portions near the one end portions of the arrays to portions near the other end portions thereof and connected to a ground-side electrode pad through a position near the other end portions of the arrays. Thus, since the sum of the lengths of common wires from the electrode pads is equal for all the plurality of elements included in each array, and the combined resistance of common wiring portions becomes substantially equal.
摘要（中）：

放松能够同时驱动的记录元件的数量的限制，使得驱动电压波动落在容许范围内。 基板包括记录元件阵列，公共电源线从阵列的一个端部附近的部分延伸到靠近其另一端部的部分，并且通过靠近电源侧电极焊盘的一个端部附近的位置连接到电源侧电极焊盘 阵列和公共接地线从阵列的一个端部附近的部分延伸到靠近其另一端部的部分，并且通过阵列的另一端部附近的位置连接到接地侧电极焊盘。 因此，由于来自电极焊盘的公共线的长度之和对于每个阵列中包括的所有多个元件是相同的，并且公共布线部分的组合电阻变得基本相等。

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