METHOD FOR RENDERING ORIGINAL IMAGE UNDER RESTRICTION OF INK DUTY CYCLE AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To adjust the total ink duty cycle only by the min. calculation by executing a process forming an electrical printing command signal containing a process obtaining an output image by determining a specific output pixel and a process applying this printing command signal to operate a printing mechanism. SOLUTION: After processing 61 for compensating an ink color, a color expressed by uncorrected RGB is corrected by a process of a block 62 in order to obtain the output color fitted to the restriction value of a single ink duty cycle. The restriction value of the total ink duty cycle shown in a block 64 is imposed on the obtained corrected RGB value by a predetermined method and a printer is operated according to the image obtained as the result but the actual command of the printer is generated by the further image processing in a block 66. The conversion to a CMY region or half toning forming the level fitted to the typical binary operation of the printer can be contained in this image processing.