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:
Nov. 04, 2003
Filed:
Nov. 28, 2001
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharging apparatus characterized by a mounting portion for mounting thereon a liquid discharging head provided with a discharge port for discharging liquid, a cap for covering the discharge port, suction means for effecting suction from the discharge port when the cap covers the discharge port, and control means for causing the cap to cover the discharge port when the liquid discharging head is mounted on the mounting portion, and causing the suction means to effect first suction from the discharge port by negative pressure having a first negative pressure curve, and then causing the suction means to effect second suction from the discharge port by negative pressure in a second negative pressure curve which is different than the first negative pressure curve with the cap caused to cover the discharge port.