Gradational power saving technique for electrophotographic image

Details Gradational power saving technique for electrophotographic image Gradational power saving technique for electrophotographic image

1997-05-21

1999-03-09

Brase, Sandra

Electrophotography

Control of electrophotography process

Control of fixing

399 69, G03G 1520

Patent

active

058813357

ABSTRACT:
An electrophotographic image forming apparatus employs a gradational power saving mode for reducing power consumption step by step with the passage of a print-waiting time. The apparatus raises a fixing temperature up to a print-waiting temperature when the image forming apparatus is turned on. When the fixing temperature reaches the print-waiting temperature, the print-waiting time is counted and compared with reference values which are preset into multiple gradations. Then, the fixing temperature is reduced to a temperature corresponding to the reference values step by step, if the counting value is equal to or greater than the reference values.

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