Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2011-03-29
2011-03-29
Chen, Sophia S (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S098000, C399S113000
Reexamination Certificate
active
07917054
ABSTRACT:
An image developing apparatus includes an upper case; a lower case disposed on a lower side of the upper case, and internally housing a developing agent, and having an opening. A photoconductive drum is disposed on the upper case for forming an electrostatic latent image on a surface thereof. A charging roller is disposed on one side of an outer circumference of the photoconductive drum for charging the photoconductive drum. A developing roller having one part is exposed through the opening of the lower case to cooperate with the photoconductive drum for developing the electrostatic latent image. A scattering preventing unit disposed between the photoconductive drum and the developing roller, to prevent scattering of the developing agent supplied by the developing roller. The scattering preventing unit includes a blocking curtain which covers a part of the opening and having one side in contact with the outer circumference of the photoconductive drum. A fixing bracket is provided for supporting the blocking curtain.
REFERENCES:
patent: 4338880 (1982-07-01), Tabuchi et al.
patent: 4575219 (1986-03-01), Tomita et al.
patent: 4792831 (1988-12-01), Takeda et al.
patent: 4882605 (1989-11-01), Sakamoto
patent: 5044313 (1991-09-01), Yuge et al.
patent: 6256466 (2001-07-01), Ota et al.
patent: 7027754 (2006-04-01), Harada et al.
patent: 7609994 (2009-10-01), Park et al.
patent: 2003/0059228 (2003-03-01), Tatsumi
patent: 2004/0047648 (2004-03-01), Saito
patent: 62-211675 (1987-09-01), None
patent: 01-108579 (1989-04-01), None
patent: 04-324468 (1992-11-01), None
patent: 05-224515 (1993-09-01), None
patent: 5-341701 (1993-12-01), None
patent: 08-234568 (1996-09-01), None
patent: 10-198162 (1998-07-01), None
patent: 10-307474 (1998-11-01), None
patent: 2000-047482 (2000-02-01), None
patent: 2000-066506 (2000-03-01), None
patent: 2002-072677 (2000-03-01), None
patent: 2002-278287 (2002-09-01), None
patent: 167117 (1998-09-01), None
patent: 10-2005-0054400 (2005-06-01), None
patent: 10-2005-0076094 (2005-07-01), None
Baek Myoung-su
Kwon Soon-seok
Park Seung-chan
Chen Sophia S
Roylance Abrams Berdo & Goodman L.L.P.
Samsung Electronics Co,. Ltd.
LandOfFree
Image developing apparatus and image forming apparatus using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image developing apparatus and image forming apparatus using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image developing apparatus and image forming apparatus using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2672807