| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus realizing prolongation of the life of an image carrier. <P>SOLUTION: The absolute value of the potential by electrification of photoreceptor drums 2a, 2b, and 2c electrified by electrifying rollers 3a, 3b, and 3c is controlled to be smaller in forming a monochrome (black) image than in forming a full color image. <P>COPYRIGHT: (C)2004,JPO |
