Appareil de formation d'images


Image forming apparatus


An image forming apparatus uses a pressing roller and a fixing roller that are pressing and contacting each other to sandwich a record medium, for fixing toner image onto the record medium. In order to inhibit in a non-paper passing area a temperature from extremely rising, a temperature detecting section detects a temperature (Tx) at the fixing roller via a thermistor installed in the non-paper passing area (S1-4); a temperature comparing section compares this detected temperature (Tx) with a predetermined standard temperature (T1(S1-7)); a print controlling section reduces a heat amount provided to the fixing roller for a predetermined period when this detected temperature exceeds the standard temperature (S1-8).




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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    JP-H0580605-AApril 02, 1993Canon Inc, キヤノン株式会社Image heating device
    US-2003059235-A1March 27, 2003Brother Kogyo Kabushiki KaishaThermal fixing device and an image forming device
    US-2004052542-A1March 18, 2004Canon Kabushiki KaishaImage forming apparatus
    US-5512993-AApril 30, 1996Canon Kabushiki KaishaImage heating device capable of controlling activation of plural heaters

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    Publication numberPublication dateAssigneeTitle