Patent ID: 8132881
Filing Date: 2012-03-13
Classification: G03G

Abstract:
1. A printing apparatus that measures a consumption of a colorant during printing, comprising: a shade level measuring unit that measures a print shade level on a print sheet; a range segment counting unit that counts the number of print sheets falling within each of a plurality of print shade range segments based on the measurement results of the shade level measuring unit; and an output unit that outputs the count results of the range segment counting unit on a per print shade range segment basis, wherein the print shade range segments include an intermediate shade range segment in which the consumption of the colorant increases with the print shade level raised, a low shade range segment in which a constant amount of colorant is consumed even with the print shade level lowered, and a high shade range segment in which the consumption of colorant is not increased above a predetermined amount even with the print shade level raised.