Importance

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Abstract

Printing apparatus and print control method for efficiently utilizing buffer memories. In a case of performing printing operation by controlling scanning of a printhead and four buffer memories where K, C, M and Y color image data are temporarily stored respectively, the color component data is inputted to the buffer memories while monitoring the data storage, and based on the monitoring result, discrimination is made as to whether or not at least one of the buffer memories has become full. Also, a print width, a conveyance amount of a print medium, and color component data to be cleared upon printing are dynamically determined based on a printable width of the printhead and the contents of the inputted color component data (monochrome image, color image, mixture of monochrome and color image). Printing is performed on print paper by scanning the printhead based on the discrimination result and the determined print width, the print paper is conveyed for the determined conveyance amount, and color component data used in printing is cleared from the buffer memories.

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First Claim