| 摘要 |
PURPOSE:To prevent the error in the sequence of charging developer components by changing the length from the turnup parts of the 1st and 2nd sealing members up to the handle parts thereof. CONSTITUTION:Slender apertures 46, 47 are sealed respectively by the 1st and 2nd sealing members 48, 49. When the operator pulls a handle 50, the 1st sealing member 48 unseals successively the aperture 46 from the turnup part 48b. The 2nd sealing member 49 has a slag of a length l in the turnup part and therefore the aperture 47 begins to be unsealed from the turnup part 49b only after the handle 50 is pulled by the length l. Magnetic particles 20 are eventually dropped earlier onto a sleeve 12 than the nonmagnetic developer. |
