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. 10, 2002
Filed:
May. 17, 1995
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A system using discharge orifices having waterproof ink orifices for discharging waterproof ink which becomes water insoluble after drying and non-waterproof ink orifices for discharging non-waterproof ink, a cap for covering the discharge orifices, and a suction device for effecting suction through the discharge orifices when the cap covers the discharge orifices. The system includes covering both the waterproof ink orifices and the non-waterproof ink orifices collectively by the cap, effecting suction through both the waterproof ink orifices and the non-waterproof ink orifices by driving the suction device when the cap covers both the waterproof ink orifices and the non-waterproof ink orifices collectively, discharging, after sucking, both the waterproof ink orifices and the non-waterproof ink orifices into the cap, and exhausting, after discharging, ink out of the cap by driving the suction means when an inside of the cap communicates with air.