Patent ID: 6120123
Filing Date: 2000-09-19
Classification: G06K,H04N

Abstract:
An ink jet recording apparatus for recording an image with a set of pixels formed by ejecting a plurality of ink droplets onto a recording medium, comprising:a plurality of recording heads, each of which has a plurality of ejecting portions, and said plurality of recording heads ejecting individually different kinds of ink droplets from respective said plurality of ejecting portions;a driving means for driving said plurality of recording heads to eject respective ink droplets in response to driving data;a scanning means for performing scanning operations of said plurality of recording heads for recording, wherein one of said plurality of ejecting portions in each of said plurality of recording heads ejects a respective kind of ink droplet in respective different scanning operations; anda driving data setting means for assigning said driving data to a plurality of individually different ejecting portions of said plurality of recording heads so as to form each one of said pixels from a plurality of ink droplets which are ejected from said plurality of individually different ejecting portions of said plurality of recording heads during the scanning operations performed by said scanning means, wherein identical kinds of ink droplets of said plurality of ink droplets are ejected during different scanning operations from one another in said each one of said pixels, and the ejecting portion to which said driving data are assigned in respective plurality of recording heads during one of said scanning operations respectively, ejects an ink droplet of a different kind of ink such that said different kind of ink droplet is ejected on the same location within a same pixel where the identical kind of ink droplet is ejected during said one scanning operation.