Patent ID: 7690749

Claim:
A method for evaluating bleeding into a recording medium of ink discharged onto the recording medium, the method comprising the steps of: outputting a bleeding evaluation print including a plurality of bleeding evaluation patches created by recording lines of a prescribed length of ink colors, at a prescribed width, and varying at least one of a recording speed at which recording data is recorded onto the recording medium, a volume of ink discharged, and a fixing energy which fixes the discharged ink onto the recording medium, as a parameter, between a plurality of different levels; measuring density of each of the bleeding evaluation patches in the outputted bleeding evaluation print; evaluating the bleeding of the ink into the recording medium according to a density measurement result on the bleeding evaluation patches; measuring density of lines of the ink colors constituting the bleeding evaluation patches in a substantially perpendicular direction to the lines; calculating values relating to a maximum density, a raggedness which indicates extent of wavering of edges of the lines, and a width of the lines, according to a density measurement result on the lines; and evaluating the bleeding according to the values.