Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2008-04-18
2009-10-27
Chen, Sophia S (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S098000, C399S113000
Reexamination Certificate
active
07609994
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.
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Baek Myoung-su
Kwon Soon-seok
Park Seung-chan
Chen Sophia S
Roylance Abrams Berdo & Goodman L.L.P.
Samsung Electronics Co,. Ltd.
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