| 摘要 |
PURPOSE:To prevent surely mixed development by toners of two colors by constituting the titled device so that when one developing sleeve has been oscillated so as to approach a photosensitive body, on the contrary, the other developing sleeve is oscillated in the direction being separated from the photosensitive body. CONSTITUTION:A developing roller consisting of developing sleeves 13, 23 and magnets 14, 24 is provided on cases 11, 21, respectively. As for each case 11, 21, a supporting shaft 31 is supported by a U-shaped bearing 32, and the developing sleeves 13, 23 are attached so as to be oscillatable on the photodetecting surface of a photosensitive body 1. Also, both end sides of an interlocking body 34 are linked to both the cases 11, 21, respectively, so that when one developing sleeve has been oscillated so as to approach the photosensitive body 1, the other developing sleeve is oscillated in the direction being separated from the photosensitive body 1. |
