Title:
SUBSTRATE FOR LIQUID DISCHARGE HEAD, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE DEVICE
Document Type and Number:
Japanese Patent JP2022093855
Kind Code:
A
Abstract:
To provide a technique capable of accurately applying a voltage to an electrode layer for suppressing and removing scorch while suppressing the increase in the size of a substrate.SOLUTION: A substrate for a liquid discharge head, which includes an electrothermal conversion element for giving heat to a liquid, an upper electrode part that protects the electrothermal conversion element and is formed with a plurality of upper electrodes provided at a position contacting the liquid, and a counter electrode part that is provided corresponding to the upper electrode part, and is formed with a plurality of counter electrodes provided so as to be electrically connected to the upper electrode through the liquid, includes generation means for generating a voltage applied to at least one of the upper electrode part and the counter electrode part.SELECTED DRAWING: Figure 4
Inventors:
FUJII YASUO
SOEDA YASUHIRO
MIURA YOSUKE
SOEDA YASUHIRO
MIURA YOSUKE
Application Number:
JP2020206568A
Publication Date:
June 24, 2022
Filing Date:
December 14, 2020
Export Citation:
Assignee:
CANON KK
International Classes:
B41J2/05; B41J2/015; B41J2/14
Attorney, Agent or Firm:
Patent Business Corporation Tani / Abe Patent Office