Electrophotography – Image formation – Development
Reexamination Certificate
2005-09-28
2008-11-25
Le, Hoa V (Department: 1795)
Electrophotography
Image formation
Development
C399S270000, C430S108600, C430S108700, C430S111300
Reexamination Certificate
active
07457571
ABSTRACT:
An image forming apparatus and process cartridge which uses a two-component developer comprising a toner and a carrier. By using toner and carrier having a small-particle size, deterioration of the toner fluidity over time can be avoided, and further by maintaining stable toner charge even in a low-humidity environment, stable high-quality image formation can be achieved. The occurrence of adherence of carrier to the solid portions of the toner image is reduced in addition to the occurrence of adherence of carrier to the edge portions, and image abnormalities, toner scattering and the like are prevented.
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Le Hoa V
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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