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. 26, 1993
Filed:
Jan. 24, 1992
Shigeru Okamura, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording apparatus has plural ink discharge portions, in corresponding recording heads, for discharging different color inks. The ink discharge portions are arranged with a discharge portion for relatively light ink always followed by a discharge portion for relatively dark ink (a given ink being lighter than another ink if the color of a mixture of those two inks is closer to the color of the other ink than to the color of the given ink). A carriage for scanning the recording heads causes a retractable cleaning member and the ink discharge portions to move relative to each other in a single direction so that the ink discharge portions are cleaned only in the order of lighter to darker inks. A second cleaning member is disposed at a position opposed to the first cleaning member to clean the first cleaning member. The second cleaning member includes an ink absorbing member and a plate-like member abutting the ink absorbing member and having an opening therein for causing ink droplets adhered to the plate-like member to be drawn into the ink absorbing member by capillary action.