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:
Jun. 12, 2001
Filed:
Jan. 09, 1998
Applicant:
Inventors:
Assignee:
Seiko Epson Corporation, Nagano-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/17 ;
U.S. Cl.
CPC ...
B41J 2/17 ;
Abstract
A printhead unit is detachably coupled to an ink cartridge. The printhead unit includes an ink passage and a damper member for absorbing a pulsation of ink in the ink passage. The damper member permits the forces created when the ink cartridge receives an impact to be absorbed rather than translated through to the printhead, thereby destroying the meniscuses in the nozzles.