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US 2002/0163655 A1Published application
Monochromatic printer and image processing apparatus
AssigneeSeiko Epson Corporation
InventorShixin Zhou
Life of this patent
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AssigneeSeiko Epson Corporation
InventorShixin Zhou
Estimating the term…
A printing apparatus is provided with multiple achromatic color inks having different densities and at least one chromatic color ink. Diversity of dots are created with the multiple achromatic color inks on a printing medium according to image data to form a black and white image where dots are inconspicuous. Dots of the at least one chromatic color ink are created according to lightness of an image to be mixed with the dots of at least one of the multiple achromatic color inks. This technique gives a high-quality monochromatic image with hue, where dots are inconspicuous. In the case of the printing apparatus provided with multiple chromatic color inks, a ratio of densities of these multiple chromatic color inks to one another is set to express a high-quality monochromatic image with desired hues. The printing apparatus provided with three different color inks, cyan, magenta yellow, as the multiple chromatic color inks, enables color images to be printed.
A printing apparatus that is provided with multiple achromatic color inks having different densities and creates a diversity of dots with the multiple achromatic color inks on a printing medium according to image data, thus printing a monochromatic image, said printing apparatus comprising:
An image processing apparatus that converts image data into an expression format based on on-off state of various types of dots, said image processing apparatus comprising:
An image processing method that converts image data into an expression format based on on-off state of various types of dots, said image processing method comprising the steps of:
A computer program product that converts image data into an expression format based on on-off state of various types of dots, said computer program product comprising:
A program that causes a computer to execute a series of processing, in order to convert image data into an expression format based on on-off state of various types of dots,
Dependencies are inferred from the claim text.