A developing apparatus has a developer carrying member carrying a
developer thereon, a developer supplying member for supplying the
developer to the developer carrying member, and a scraping member for
contacting the developer carrying member upstream of the closest position
between the developer carrying member and the developer supplying member
with respect to the movement direction of the developer carrying member
to thereby scrape off the developer from the developer carrying member.
There is formed a developer supplying portion surrounded by the scraping
member, the developer carrying member and the developer supplying member
for supplying the developer from the developer supplying member to the
developer carrying member, and the developer scraped off by the scraping
member is conveyed to a collecting passage differing from the closest
position.