Photocopying – Contact printing – Light boxes
Patent
1994-12-27
1996-11-19
Pendegrass, Joan H.
Photocopying
Contact printing
Light boxes
118657, G03G 1509
Patent
active
055768148
ABSTRACT:
A developing unit including a developing chamber provided with a rotatable developing sleeve and a magnet roller capable of rotating inside the developing sleeve, and a first agitator for agitating a developer, and an agitation chamber provided with a second agitator for supplying a magnetic toner to the developing chamber. A restriction member, formed of a magnetic material, is suspended between the developing chamber and the agitation chamber. A free end of the restriction member extends toward the first agitator and a toner supply slit is formed below the lower, or free, end of the restriction member so that the magnetic toner supplied by the second agitator in the agitation chamber is conducted to the first agitator without direct contact with the developing sleeve. As a result, the magnetic toner can be supplied and agitated positively and stably.
REFERENCES:
patent: 4026241 (1977-05-01), Takebe et al.
patent: 4496240 (1985-01-01), Yamashita et al.
patent: 4716437 (1987-12-01), MacLellan
patent: 4822711 (1989-04-01), Itaya et al.
patent: 4839688 (1989-06-01), Bares
patent: 4993829 (1991-02-01), Naganuma et al.
patent: 5196890 (1993-03-01), Nakayama et al.
Makino Kazumasa
Nishimura Soichiro
Brother Kogyo Kabushiki Kaisha
Pendegrass Joan H.
LandOfFree
Developing unit using toner having a magnetic shield between the 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 unit using toner having a magnetic shield between the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing unit using toner having a magnetic shield between the will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-544540