Photocopying – Contact printing – Light boxes
Patent
1992-02-10
1993-08-31
Moses, Richard L.
Photocopying
Contact printing
Light boxes
355208, 219216, 118 60, 432 60, G03G 1520
Patent
active
052413497
ABSTRACT:
An image forming apparatus comprises a thermal fixing apparatus having a heat generating member and heat-fixing an image on paper, a section for discriminating a using frequency of the image forming apparatus, and a section for controlling a fixing temperature having a first temperature control mode maintaining the temperature of the thermal fixing apparatus to be a first temperature at which the image can be fixed, a second temperature control mode maintaining the temperature of the thermal fixing apparatus to be a second temperature, which is lower than the first temperature by a predetermined temperature, and a third temperature control mode stopping current supply to a heat generating member of the thermal fixing apparatus. Moreover, the fixing temperature control section selects either the second control mode or the third control mode in accordance with an output of the using frequency discriminating section when a non-image forming operation period continues for a predetermined period of time while the fixing temperature control section is operating in the first temperature mode.
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Casio Computer Co. Ltd.
Casio Electronics Manufacturing Co. Ltd.
Moses Richard L.
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