The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2020
Filed:
Jun. 29, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Takuya Iwano, Inagi, JP;
Toshiaki Hirosawa, Hiratsuka, JP;
Hiromasa Amma, Kawasaki, JP;
Tomoki Tsuji, Naka-gun, JP;
Akira Kida, Yokohama, JP;
Tetsuji Kurata, Yokohama, JP;
Atsushi Kohnotoh, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head unit is formed by arranging a plurality of recording element substrates in a first direction. Each recording element substrate has an ejection orifice from which a liquid is ejected. The liquid ejection head unit includes rail portions extending in the first direction and a protective member which is detachably fitted on the rail portions. The protective member is movable along the rail portions between a first position and a second position. The first position allows the protective member to cover whole surfaces of the plurality of recording element substrates. The second position allows the plurality of recording element substrates to be exposed so as to allow a liquid to be ejected from the ejection orifices.