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:
May. 31, 2016
Filed:
Jun. 08, 2015
Seiko Epson Corporation, Tokyo, JP;
Tomoji Suzuki, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A drop in the throughput of continuous printing operations caused by refilling a subtank with ink is suppressed. The control unit of an inkjet printerfills subtanks-with ink whenever ink consumption exceeds a reference volume q during continuous printing. Ink is suctioned by producing negative pressure in subtanks-during the ink refill operation while ink continues being supplied to the inkjet headfrom pressure adjustment chambers-disposed between subtanks-and inkjet head. Ink ejection from the inkjet headcan therefore continue even during the ink ref ill operation. By setting the volume of the pressure adjustment chambers-greater than at least the amount of ink that is ejected during the ink refill operation, there is no need to interrupt printing in order to replenish the ink supply.