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:
Jan. 07, 2003
Filed:
Jul. 05, 2000
Shunji Umemura, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
There is provided a print head device which is capable of mounting an ink cartridge therein with a small mounting force without spoiling the sealing performance of a seal packing and minimizing the deformation of a contact portion of the seal packing where the ink cartridge is brought into contact, and an ink jet printer incorporating the print head device. The print head device includes a print head unit, an ink cartridge removably mounted in the print head unit, and a seal packing. The print head unit has an ink jet print head, and an ink reception block for receiving supply of ink. The ink cartridge is removably mounted in said print head unit, and has an ink delivery block for delivering ink therefrom. The seal packing has a generally hollow cylindrical shape and arranged between said ink delivery block of said ink cartridge and said ink reception block of said print head unit. The seal packing has a fitting portion for airtight fit on a peripheral surface of said ink reception block, an intimate contact portion for intimate contact with said ink delivery block, and an intermediate hollow cylindrical portion continuous between said fitting portion and said intimate contact portion, and formed to be smaller in thickness than said fitting portion and said intimate contact portion.