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:
Oct. 23, 2012
Filed:
Jun. 07, 2010
Applicant:
Takahisa Yamada, Hachioji, JP;
Inventor:
Takahisa Yamada, Hachioji, JP;
Assignee:
Riso Kagaku Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus estimates a temperature at nozzles in consideration of temperature changes in a recording head, by temperature sensors provided at an ink supply port and an ink eject port in the recording head. From the estimated temperature and a temperature difference between when feeding ink and when ejecting ink, a temperature control based on heating/cooling is performed by combining a fan and a heater with heating/cooling based on the peltier element, so as to fall within a drivable temperature range in which the nozzles properly discharge ink.