IMAGE FORMING DEVICE AND ITS METHOD

摘要

PROBLEM TO BE SOLVED: To obtain an image with high quality by separating an area of a character/line drawing from an area of a half tone image in the case of printing a bit map image. SOLUTION: In the case of generating a bit map image by a rasterizer 14 receiving an image command, attribute map information denoting the attribute of a character area or the like corresponding to each pixel of the generated bit map mage is generated and stored in an attribute map memory 16. An image processing section 17 refers to the attribute map memory to generate a signal denoting an output with low resolution for inside of thick characters and for a half tone area and with high resolution in other characters and the signal is outputted from an image forming unit 19.