Electrophotography – Image formation – Development
Reexamination Certificate
2005-05-24
2005-05-24
Tran, Hoan (Department: 2852)
Electrophotography
Image formation
Development
Reexamination Certificate
active
06898402
ABSTRACT:
A developing unit of an electrophotographic image forming apparatus includes at least one developing apparatus installed to be capable of accessing and being separated with respect to a photoreceptive drum and including a developing roller developing an electrostatic latent image formed on the photoreceptive drum and a gap maintenance member closely contacting the photoreceptive drum such that the developing roller accesses the photoreceptive drum in a non-contact state while maintaining a predetermined gap with the photoreceptive drum, and a guide portion formed on a frame to guide a movement of the developing apparatus. An inclined portion facing a center shaft of the photoreceptive drum is provided at a leading end of the guide portion so that the gap maintenance member closely contacts the photoreceptive drum while pressing the photoreceptive drum in a radial direction of the photoreceptive drum.
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patent: 6704529 (2004-03-01), Noh
patent: 2275970 (1990-11-01), None
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Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
Tran Hoan
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