Patent Document ID: 20150206115
Application ID: 14598088
Patent Status: 0

Claim One:
1. A printing apparatus to charge a color printing fee in a case where a pixel for which a color printing flag is set is present in an input image, and to charge a black-and-white printing fee in a case where a pixel for which the color printing flag is set is not present in an input image, the printing apparatus comprising: a white determination unit configured to determine whether a focused pixel in the input image is a white pixel; a gray text determination unit configured to determine whether the focused pixel constitutes a gray text; and a setting unit configured to, in a case where the focused pixel is determined to constitute a gray text or be a white pixel, set a black-and-white printing flag for the focused pixel and, in a case where the focused pixel is determined to neither constitute a gray text nor be a white pixel, set the color printing flag for the focused pixel.