| 摘要 |
<P>PROBLEM TO BE SOLVED: To satisfy sufficient fixability and prevent wasteful consumption of power by exerting heat control matching an image processing mode or a half-tone processing system in an image forming apparatus. <P>SOLUTION: A heating control determination means 111 inputs digital image signal (C" M" Y" K") after half-tone processing and an image processing mode signal m from an operation panel, not shown, and outputs a heating area signal ha and a heat value signal hp. In a character mode, a comparatively large caloric value is necessary for high γ setting and error diffusion processing. Therefore, the total amount of heat application is made large by setting the heat value large and extending an area to be heated. In a photographic mode, γ setting is linear, which allows fixing with comparatively small caloric value. Therefore, an expansion process is set comparatively small and an amount of heat application is also set small. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
