Ink jet print head

An ink jet print head is provided which includes: a print element substrate; a plate accommodating the print element substrate by enclosing a side peripheral portion of the print element substrate; an electric wiring tape member disposed on the plate and having electric wiring portions for the print...

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Bibliographic Details
Main Authors Kashino, Toshio, Kigami, Hiroyuki
Format Patent
LanguageEnglish
Published 11.04.2006
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Summary:An ink jet print head is provided which includes: a print element substrate; a plate accommodating the print element substrate by enclosing a side peripheral portion of the print element substrate; an electric wiring tape member disposed on the plate and having electric wiring portions for the print element substrate; a first sealant filling a space surrounding the print element substrate enclosed by the plate; and a second sealant covering a part of the electric wiring portions. In this construction, stress concentrations in the electric connections are alleviated even if the electric wiring tape used to support the second sealant has a reduced stiffness due to a reduced thickness of the tape. For this purpose, the plate H′ is provided with protrusions H as support members that support the second sealant H through the extension portions H of the electric wiring tape.