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:
Nov. 05, 1996
Filed:
Mar. 02, 1993
Masahiro Fujii, Suwa, JP;
Susumu Hama, Suwa, JP;
Hiroshi Takizawa, Suwa, JP;
Masahiro Minowa, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A highly reliable ink-jet printer or printing mechanism capable of consistent ink discharge in an on-demand type ink-jet printer. The printing mechanism is equipped with an ink-jet head having a plurality of ink nozzles that discharge ink drops and pressure generating elements corresponding to the nozzles, for applying pressure to the ink therein. A timer measures a preselected time period and a recovery processor controls recovery operations for each nozzle. The recovery operations are executed at prescribed time intervals during non-operation of the ink-jet head based on timer output. The recovery processor performs recovery processing when the power source is powered on. Further, an automatic power disconnection is performed when the number of consecutive recovery performed in response to the output of the timer reaches a prescribed maximum number.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile