Electrophotography – Control of electrophotography process – Control of fixing
Patent
1997-07-18
1999-06-29
Brase, Sandra
Electrophotography
Control of electrophotography process
Control of fixing
G03G 1520
Patent
active
059180870
ABSTRACT:
An image forming apparatus including a fixing roller and a pressure roller in which a temperature of the fixing roller and/or the pressure roller is changed differently depending on an operation mode. In particular, the temperature of the fixing roller and/or pressure roller of an operation of a non-full color mode is changed to a lesser degree than that of a full color mode operation. In another embodiment of the present invention, the temperature of the fixing roller is set to an appropriate value when an environment temperature sensor is not working properly, to produce high quality images. In yet another embodiment according to the present invention, the temperature of the fixing roller is set to an appropriate value, when an image forming apparatus is turned off for a predetermined period of time, to produce high quality images.
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Hosaka Hiroshi
Kimura Yoshiyuki
Brase Sandra
Ricoh & Company, Ltd.
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