| 摘要 |
PROBLEM TO BE SOLVED: To prevent a post-treatment agent scraped out of a photoreceptor from dropping down to an exposure window.SOLUTION: Around the photoreceptor 18 in an imaging unit 17, a development unit 21 is disposed on the rotating direction downstream side of the photoreceptor 18 beyond a charging device 19. A seal device 45 is constructed, on the outside wall surface on the rotating direction downstream side of a developing roller 37 beyond the developing roller 37 in the opening of a development housing 36, with one end of a seal member, wherein the other end is brought into slide contact with the circumferential surface of the photoreceptor 18, and one end of a receiving member extending toward the photoreceptor 18 attached to make a predetermined angle between them. In this way, the post-treatment agent scraped off from the photoreceptor 18 by the seal member is collected in a collection pocket formed of the seal member and the receiving member. Accordingly, the post-treatment agent scraped off is prevented from dropping down to the exposure window 44 and contaminating the window 44. |
