Patent ID: 7706001

Claim:
A device driver executable on an operating system on a computer incorporating a first graphics engine and a second graphics engine, the first and second graphics engines being different from each other, the device driver comprising: a first device driver of the first graphics engine, the first device driver being configured to create drawing data in a spool format of the second graphics engine; and a second device driver of the second graphics engine, the second device driver being configured to cause printing to be performed on the basis of the drawing data in the spool format of the second graphics engine, wherein the first device driver is configured to create the spool format of the second graphics engine by replacing raster operation (ROP) with alpha blending, and wherein for drawing data described in raster operation (ROP) that cannot be replaced with alpha blending, the first device driver includes a unit configured to describe the drawing data expressed as extended drawing data in the spool format of the second graphics engine.