| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus equipped with a cleaning device which improves the cleanability without increasing the number of components. SOLUTION: The image forming apparatus includes: an intermediate transfer belt 20; a cleaning blade 27 which cleans the intermediate transfer belt 20 in contact with the belt 20; a conductive holder 28 which supports the cleaning blade 27; a drive roller 21 disposed opposite the cleaning blade 17 with the intermediate transfer belt 20 between them; and a cleaning device 25 which has a power source for applying a bias with the same polarity as that of toner on the intermediate transfer belt 27 to the drive roller 21 and generates an electric field between the holder 28 and the drive roller 21, thereby cleaning the intermediate transfer belt 20. This weakens electrostatic attraction force between the intermediate transfer belt 20 and toner and improves the cleanability of the belt with the cleaning blade 27. COPYRIGHT: (C)2004,JPO
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