Electric heating – Heating devices – Combined with diverse-type art device
Patent
1998-12-08
2000-08-01
Walberg, Teresa
Electric heating
Heating devices
Combined with diverse-type art device
399 69, 399 70, H05B 100
Patent
active
060969962
ABSTRACT:
Method and apparatus for controlling a temperature of a thermal fixing unit which is for the purpose of maintaining the balance between a fixing rate and the occurrence of wrinkles even if a distance between paper sheets greatly varies within a printer. When image formation is consecutively made onto a plurality of record mediums without stopping an operation of an image forming apparatus, an interval between the record mediums is detected, and a controlled target temperature for a thermal fixing unit is switched and set in accordance with the interval between the record mediums to control a heat source so that the temperature of the thermal fixing unit reaches the controlled target temperature. The image forming apparatus may include an electrophotographic recording apparatus such as a copying machine, facsimile and laser printer using a toner.
REFERENCES:
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patent: 5111249 (1992-05-01), Owada
patent: 5280328 (1994-01-01), Goto et al.
patent: 5289247 (1994-02-01), Takano et al.
patent: 5701554 (1997-12-01), Takana et al.
patent: 5960233 (1999-09-01), Goto et al.
Hirose Kazunori
Matsuya Takashi
Fujitsu Limited
Fuqua Shawntina
Walberg Teresa
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