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:
Aug. 07, 2012
Filed:
Jun. 10, 2010
Yoshiyuki Okada, Ibaraki-ken, JP;
Yoshiyuki Okada, Ibaraki-ken, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A print head includes an ink propelling mechanism, an ink tank supplies ink to the print head, an ink circulation route includes the print head and the ink tank therein, a pump circulates ink through the ink circulation route, a temperature sensor measures a temperature of ink flowing in a route between the print head and the ink tank in the ink circulation route, a heater is disposed in a vicinity of the ink tank to heat ink, and a controller works with a received print job, operating for temperatures of ink as measures at the temperature sensor lower than a first prescribed reference, to heat ink by the heater without starting printing, and for temperatures of ink as measures at the temperature sensor kept equal to or higher than the first reference for a prescribed time interval, to start printing.