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:
Dec. 01, 2009
Filed:
Jul. 26, 2006
Yasuhiko Kosugi, Nagano-ken, JP;
Toshihisa Saruta, Nagano-ken, JP;
Yasuhiko Kosugi, Nagano-ken, JP;
Toshihisa Saruta, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An ink cartridgeholding a recording material used for printing therein has a sensor substitute moduleto simulate operations of a cartridge having a built-in sensor. As a control circuitof a printergives a sensor access instruction to the ink cartridge, the sensor substitute modulegenerates a specific signal and outputs the specific signal via an output module. The specified signal is equivalent to a signal that represents a sufficient level of remaining ink and is expected to be output from the built-in sensor of the cartridge. The ink cartridgeis thus applicable to both a printer designed for the use of a cartridge with a built-in sensor and a printer designed for the use of a cartridge without a built-in sensor. Namely the cartridge of the invention is compatible with the cartridge having the built-in sensor.