DRY MODE DEVELOPING DEVICE FOR ELECTROPHOTOGRAPHIC DEVICE

摘要

PURPOSE:To uniform mixture degree of a developer in the axial direction of developing sleeve in a short time without applying pressure, by carrying the developer in both end parts of a scraper to the sides opposite to each other. CONSTITUTION:The used developer is gathered from developing sleeve 12 into developer storing part 15 by drawing-up sleeves 13 and 14. Scraper 20 which scrapes the developer on drawing-up sleeve 14 is provided with casings 23a and 23b for carrying of the developer. Developer carrying means such as spiral blades and coil springs are provided in these casings. The developer is charged into casings from apertures 22a and 22b in both ends of the scraper and is carried in directions A and B opposite to each other and is ejected from exits 24a and 24b. Meanwhile, the developer in the center is cross-mixed narrowly by the agitating blade having plural inclined elliptic plates.