| 摘要 |
PURPOSE:To obtain a clear two-color picture free of color mixing, by scattering a toner when a developer leaves a rubbing plate provided in contact with the surface of the developer, and removing the 1st toner mixed with the 2nd toner from the developer. CONSTITUTION:The 1st toner 5 is carried on the surface of a sleeve 11 together with the 2nd toner 8 and the developer 9 consisting of a carrier. The carried amount of the developer 9 is specified by a doctor 12 to secific thickness to develope an electrostatic latent image on the surface of a recording body 1 and after the development, the developer is scraped off from the sleeve 11 by a scraper 13. The rubbing plate 14 is provided in contact with the surface of the developer 9 in front of the scraper 9. The developer 9 flows down in contact with the rubbing plate 14 and the toner 5 also scatters in powder together with the toner 8 when leaving the end part 15 of the plate 14. A separating electrode 16 which rotates by being applied with a positive voltage is provided on the opposite position to the scraper 13 and only the toner 5 having negative charge among the scattering toner sticks to the separating electrode 16. |
