Electrophotography – Control of electrophotography process – Responsive to number of copies or passage of time
Patent
1997-11-21
2000-02-15
Royer, William
Electrophotography
Control of electrophotography process
Responsive to number of copies or passage of time
399 71, 399346, G03G 1500
Patent
active
060262559
ABSTRACT:
An image forming apparatus including a blade for removing a developer left on a photoconductive drum. In addition, a low density pattern is formed on at least a part of the photoconductive drum based on a duration the photoconductive drum is driven.
REFERENCES:
patent: 4969015 (1990-11-01), Sanpe
patent: 5386274 (1995-01-01), Sanpe et al.
patent: 5463455 (1995-10-01), Pozniakas et al.
patent: 5493382 (1996-02-01), Takagaki et al.
patent: 5663788 (1997-09-01), Sanpe
Kizaki Osamu
Sanpe Atsushi
Noe William A.
Ricoh & Company, Ltd.
Royer William
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