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. 18, 2001
Filed:
May. 13, 1997
Hiroyuki Noguchi, Yokohama, JP;
Hiroshi Nobuta, Yokohama, JP;
Hisayoshi Matsui, Nagoya, JP;
Fumihiko Nakamura, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording apparatus which reduces consumption of ink by preventing unnecessary recovery operation during a printing job by an ink-jet method. First, the recording apparatus detects whether a recording mode is a black and white printing mode or color printing mode. Second, if the printing mode is the black and white printing mode, then the image recording is performed by using only nozzles for K(black), as well as an idle discharge operation is performed only on the nozzles for K. Whereas if the color printing mode is detected, then the image recording is performed by using all the nozzles for C(cyan), M(magenta), Y(yellow), and K(black), as well as the idle discharge operation is performed on all the nozzles.