Developing apparatus having mixing region

Details Developing apparatus having mixing region Developing apparatus having mixing region

1997-01-06

1998-08-04

Beatty, Robert

Electrophotography

Image formation

Development

399272, G03G 1508

Patent

active

057909296

ABSTRACT:
A developing apparatus including a magnetic conveying means 4 comprising a non-magnetic metal sleeve 7, onto which a developer containing a magnetic toner and a magnetic carrier is attracted, a permanent magnet member 8 having a plurality of magnetic poles and stationary inside the sleeve 7; a casing 1a having a developer-containing portion 5 for receiving the magnetic conveying means 4 and a toner-containing portion 3 disposed adjacent to the developer-containing portion 5 for storing the magnetic toner; and a doctor blade 10 for regulating a thickness of the developer 11 on the sleeve 7, the sleeve 7 being rotated such that the magnetic toner is attracted onto a surface of an electrostatic image-bearing member 12, further comprising a downward partition 3a and an upward partition 3b between the developer-containing portion 5 and the toner-containing portion 3 in such a positional relation that the downward partition 3a is closer to the sleeve 7 than the upward partition 3b, a developer which has not passed through a gap between the doctor blade 10 and the sleeve 7 being mixed with a freshly supplied magnetic toner in a region R defined by the downward partition 3a, the upward partition 3b, the sleeve 7 and an inner wall of the casing 1a.

REFERENCES:
patent: 4121931 (1978-10-01), Nelson
patent: 4517274 (1985-05-01), Honda et al.
patent: 4628019 (1986-12-01), Suematsu et al.
patent: 4640880 (1987-02-01), Kawanishi et al.
patent: 4676192 (1987-06-01), Yuge et al.
patent: 4916492 (1990-04-01), Hoshika et al.
patent: 4993829 (1991-02-01), Naganuma et al.
patent: 5003917 (1991-04-01), Toyoshi et al.
patent: 5188057 (1993-02-01), Ishikawa et al.

Affiliated with

Also associated with

Rating

Developing apparatus having mixing region does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Developing apparatus having mixing region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing apparatus having mixing region will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1190786