| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of preventing transfer rate decrease and image defects such as vermiculate image, even in configuration in which a lubricant is applied to an intermediate transfer rotor, such as, intermediate transfer belt, although it is not applied to latent image carrier rotors, such as photoreceptor drums. SOLUTION: The image forming apparatus (1) of an indirect transfer system has a lubricant application means (38d) for applying a lubricant to the surface of the intermediate transfer rotor (31), and this apparatus (1) has a lubricant application mode, in which each of the latent image carrier rotors (Y1, C1, M1, and K1) and the intermediate transfer rotor (31) are rotated, in contact with each other for a predetermined length of time other than time required for an image forming operation. When they are rotated in the lubricant application mode, the linear velocity of at least the latent image carrier rotor or the intermediate transfer rotor is set to a value which is different from a value assigned for the image forming operation, and thereby a large difference in linear velocity is set between the latent image carrier rotor and the intermediate transfer rotor. COPYRIGHT: (C)2009,JPO&INPIT
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