PRINTHEAD SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS

摘要

A printhead substrate comprising a plurality of printing portions and a plurality of ink supply ports, wherein the plurality of printing portions are divided into a plurality of groups, and the plurality of ink supply ports are arranged so as to correspond to the plurality of groups respectively, the printhead substrate also comprises a plurality of first voltage wiring portions provided in correspondence with the plurality of groups, and each first voltage wiring portion includes a first wiring pattern configured to connect the first terminals of the respective printing portions in the corresponding group with each other, and a second wiring pattern connected to the first wiring pattern and arranged between an ink supply port in the corresponding group and its neighboring ink supply port.

主权项

1. A printhead substrate comprising a plurality of printing portions and a plurality of ink supply ports,
wherein the plurality of printing portions are divided into a plurality of groups arrayed along a first direction, the plurality of ink supply ports are arranged along the first direction so as to correspond to the plurality of groups respectively, the printhead substrate comprises a plurality of first voltage wiring portions provided in correspondence with the plurality of groups and configured to respectively supply a first voltage to first terminals of the printing portions in corresponding groups of the plurality of groups, and one of the plurality of first voltage wiring portions includes
a first wiring pattern configured to electrically connect the first terminals of the printing portions in the corresponding group with each other, anda second wiring pattern arranged between an ink supply port in the corresponding group and another ink supply port different from the ink supply port in the corresponding group, and electrically connected to the first wiring pattern.