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:
Sep. 14, 2010
Filed:
Mar. 22, 2007
Takashi Akase, Azumino, JP;
Koji Morikoshi, Shiojiri, JP;
Keiji Matsumoto, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The ink jet type printer is equipped with a recording head for ejecting ink including humectant and water from a nozzle formed on a nozzle forming surface and a cap which can seal the nozzle forming surface of the recording head. Further, the ink jet type printer is equipped with a control section for detecting an amount of the ink discharged into the cap from the nozzle, for calculating an available water amount which is a water amount except water absorbed by humectant in the ink in the cap based on the detected ink amount, and for performing maintenance control for forcibly discharging ink into the cap from the nozzle so that the amount of the ink discharged from the nozzle becomes smaller when the calculated available water amount is large than when small.