Ink jet print head

Patent metadata

Field	Value
Publication number	US-8991980-B2
Application number	US-201414255019-A
Country	US
Kind code	B2
Filing date	Apr 17, 2014
Priority date	Feb 6, 2009
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

An ink jet print head is configured to reduce the inclination of an ink ejection direction to make improper print conditions such as stripes and density unevenness unnoticeable. An individual wire is extended to lie under a common wire. Thus, wires under ink channels arranged on the respective opposite sides of a pressure chamber are symmetric. Consequently, an equivalent step structure is provided at the bottoms of the ink channels arranged on the respective opposite sides of the pressure chamber.

First claim

What is claimed is:

1. A liquid ejection head comprising:
a board including:
an element configured to generate energy used to eject liquid;
a supply port penetrating the board, the supply port configured to supply liquid to the element; and
a wire connected to the element,
wherein the element includes a first and a second element arranged in a first direction,
the supply port includes a first and a second supply port arranged in the first direction,
the wire includes a…

Assignees

• Canon Kk

Inventors

• Kishikawa Shinji
• Tsuchii Ken
• Sakurai Masataka
• Saito Akiko

Classifications

• B41J2/1404

  Operations & Transport · mapped topic

• B41J2/14072 Primary

  Operations & Transport · mapped topic

• B41J2002/14403

  Operations & Transport · mapped topic

• B41J2002/14491

  Operations & Transport · mapped topic