Patent ID: 6344899
Filing Date: 2002-02-05
Classification: H04N

Abstract:
An ink jet recording apparatus for recording a color image while expressing gradations by generating a print signal in such a manner that two or more color inks, each color ink having an optical density, the optical density of at least one color ink being different from the optical density of at least one other color ink, are dot printed repeatedly at a unit pixel of a record medium according to an image signal input, said ink jet recording apparatus comprising:ink amount limiting coefficient determining means for distinguishing colors used in said image signal and also for determining ink amount limiting coefficients used to limit ink amounts for said respective colors used, so that a sum of an actual numbers of times of repeated printing for each of said colors used is equal to or less than a given value, wherein, for each color ink, a maximum number of times of repeated printing is based on the optical density of that color ink and provides a limited repeated printing conversion number, and print signal generating means for generating a print signal based on said image signal and said ink amount limiting coefficients.