| 摘要 |
PURPOSE:To simplify a driving mechanism and also to prevent damage of the surface of a photoreceptor, by utilizing an attraction/repulsion operation of a magnet member for a driving mechanism of a scraping device. CONSTITUTION:The magnet member 12 is provided on a blade holder 3 of the scraping device A and also a driving magnet member C is installed at a position for generating an attraction/repulsion magnetic field with the magnet member 12. This driving magnet member C consists of a pair of the magnet members 14a, 14b having each opposite polarity. In this state, when the driving magnet member C is rotated, attraction/repulsion operation is generated between the magnet member 12 and the driving magnet member C. As a result, the holder 3 is rotated, and a blade 2 of the scraping device A is made to press-contact and is separated to and from the surface of the photoreceptor 1. In this way, transfer of pressure force to the surface of the photoreceptor can be executed by non- contact, therefore, damage of the surface of the photoreceptor is prevented and also the driving mechanism can be simplified. |
