Patent ID: 6234606
Filing Date: 2001-05-22
Classification: B41J

Abstract:
An image printing apparatus comprising:a first print nozzle group for ejecting at least one color ink;a second print nozzle group for ejecting black ink; andprint control means for causing said first and second print nozzle groups to eject the inks onto a printing medium while moving said first and second print nozzle groups relative to the printing medium to selectively print a color image and a black ink monochromatic image,wherein the number of density types of the black ink is greater than that of any color ink,wherein said first print nozzle group has a plurality of nozzles for ejecting inks having at least two different densities in correspondence with color ink of at least one type, andwherein said printing control means controls printing of a color image and the black ink monochromatic image having a greater number of gradation levels than that of each color of the color image on one printing medium.