Printing device, printing method, and print program for coloring a white area of a print image

A printing method that generates print data based on a print source, the printing method comprising:

• generating a print image by rendering the spool file;
• generating a first position data indicating a white area of an object in the print image by rendering the spool file using a technique different from that used in the step of generating the print image;
• performing a halftone process only for the white area;
• and
• generating the print data based on halftone data generated by the halftone process;
• wherein the step of generating a first position data also generates a second position data indicating a white area of the object based on the print image rendered by the step of generating a print image, and the step of performing a halftone process performs a halftone process for the white area.

A tangible computer-readable medium, stored thereon a program for allowing a computer to perform a function for generating print data in a printing process based on a print source, the print data including a margin area to be colored in a predetermined color and an object that includes a white area, the function comprising:

• a rendering function for generating a print image by rendering the spool file;
• a halftone function that includes:
• a first function for generating a first position data indicating a white area of an object in the print image by rendering the spool file using a technique different from that used in the rendering function;
• a second function for performing a halftone process only for the white area;
• and
• a print data generating function that generates the print data based on halftone data generated by the halftone function;
• wherein the first function of the halftone function generates a second position data indicating a white area of the object based on the print image rendered by the rendering function and the second function of the halftone function performs a halftone process for the white area.