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:
Jan. 01, 2019
Filed:
Mar. 02, 2017
Applicant:
Naruhiro Masui, Kanagawa, JP;
Inventor:
Naruhiro Masui, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01); B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04588 (2013.01); B41J 2/04586 (2013.01);
Abstract
A head driving device drives a liquid ejection head. The liquid ejection head includes a plurality of nozzles and a plurality of pressure generating devices provided respectively corresponding to the nozzles. The head driving device includes a driving-waveform correcting unit configured to correct driving waveform data that defines ejection characteristics of liquid to be ejected from the nozzle based on interference patterns expressing variations in the ejection characteristics caused by an interference occurring in the nozzle.