Electrophotography – Control of electrophotography process – Control of fixing
Patent
1997-07-16
1998-06-30
Grimley, Arthur T.
Electrophotography
Control of electrophotography process
Control of fixing
219216, 399 45, 399 70, 399328, 399336, 432 60, G03G 1520
Patent
active
057747636
ABSTRACT:
In an image forming apparatus, a fixing device has a structure in which a film formed on an outer face of a hollow cylinder is heated by a heat ray of a heater. In this structure, the heating response time of the fixing device is improved. The image forming apparatus generates one or more conditions having influence on a fixing operation and corresponding to a printing paper sheet. The operation of the fixing device is controlled in accordance with the one or more conditions. Since there is one or more conditions of the printing paper sheet for controlling the fixing operation, fixing processing can be preferably executed even when various kinds of factors of the printing paper sheet such as a size, a conveying direction, etc. are different from each other. The heating response time of the fixing device is preferable so that temperature control of the fixing device can be effectively executed. The fixing processing can be preferably executed so as to provide fast heating and energy savings even when sizes, conveying directions of the printing paper sheet, etc. are respectively different from each other.
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Chen Sophia S.
Grimley Arthur T.
Ricoh & Company, Ltd.
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