Patent ID: 9056997
Filing Date: 2015-06-16
Classification: B41J,C08K,C09D

Abstract:
1. An ink-jet recording apparatus configured to perform recording on a recording medium, the apparatus comprising: a water-based yellow ink which contains a yellow dye and of which hue angle ∠H° defined in a CIELAB color space on the recording medium is in a range of 80° to 100′; a water-based magenta ink which contains a magenta dye and of which hue angle ∠H° defined in the CIELAB color space is in a range of 0° to 5° or in a range of 345° to 360°; a water-based cyan ink which contains a cyan dye and of which hue angle ∠H° defined in the CIELAB color space is in a range of 220° to 240°; an ink-jet head configured to discharge the water-based yellow ink, the water-based magenta ink and the water-based cyan ink; and a controller configured to control the ink-jet head so as to satisfy the following conditions (A) and (B) to thereby form a composite black on the recording medium: wherein in the conditions (A) and (B): Y: a drop amount (ng) of the yellow dye dropped in a 25.4 mm×25.4 mm area of the recording medium; M: a drop amount (ng) of the magenta dye dropped in the 25.4 mm×25.4 mm area of the recording medium; and C: a drop amount (ng) of the cyan dye dropped in the 25.4 mm×25.4 mm area of the recording medium.