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. 21, 1999
Filed:
Dec. 29, 1995
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid jet recording apparatus is structured to enable recording liquid to circulate by conductively connecting the recording head for discharging recording liquid and means for retaining recording liquid through a forwarding path for recording liquid to flow into the head and a returning path for recording liquid to flow out from the head. This apparatus comprises means for generating pressure to suck recording liquid on the returning path from the head, while exerting pressure on recording liquid in the forwarding path toward the head. In this way, dust particles and air bubbles in ink are removed without allowing ink to flow out of the discharge ports of the recording head so as to save the consumption of ink to be used wastefully when a recovery operation is executed for the apparatus.