Electrophotography – Image formation – Development
Patent
1998-11-30
1999-11-16
Smith, Matthew S.
Electrophotography
Image formation
Development
492 56, G03G 1508
Patent
active
059872896
ABSTRACT:
A developing device including a developing roller and applicable to an electrophotographic image forming apparatus is disclosed. The developing roller is made up of a flexible member and a shaft and feeds toner to a latent image formed on a photoconductive element. A supply roller supplies the toner to the developing roller. A gap is formed between the flexible member and the shaft at at least one end portion of a printing region assigned to the developing roller. The gap sets up a uniform pressure between the supply roller and the developing roller and between the developing roller and the photoconductive element.
REFERENCES:
patent: 4299902 (1981-11-01), Soma et al.
patent: 4317270 (1982-03-01), Watanabe et al.
patent: 5012289 (1991-04-01), Aldrich et al.
patent: 5467178 (1995-11-01), Mui et al.
Chen Sophia S.
NEC Corporation
Smith Matthew S.
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