Electric heating – Heating devices – Combined with diverse-type art device
Patent
1999-08-17
2000-06-06
Pelham, Joseph
Electric heating
Heating devices
Combined with diverse-type art device
399333, G03G 1520
Patent
active
060721561
ABSTRACT:
An image fixing apparatus includes such an image fixing roller for thermally fixing images on an image receiving material that includes (a) a core roller member; and (b) an exothermic phase transition layer provided on the core roller member. The exothermic phase transition layer includes an exothermic phase transition material capable of performing reversible phase transition from an amorphous state to a crystalline state and vice versa, and crystallizing at a crystallization temperature which is lower than a predetermined image fixing temperature, with liberation of crystallization heat therefrom, and the exothermic phase transition material having a melting point higher than the image fixing temperature, thereby additionally increasing the temperature elevation rate before the temperature of the outer peripheral surface of the image fixing roller reaches the image fixing temperature to shorten the warm up time of the image fixing roller.
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patent: 5740513 (1998-04-01), Matsuo et al.
patent: 5773793 (1998-06-01), Matsuo
patent: 5786564 (1998-07-01), Matsuo
patent: 5804794 (1998-09-01), Matsuo et al.
patent: 5960244 (1999-09-01), Matsuo et al.
Jibiki Yuichi
Kobayashi Toshio
Matsuo Minoru
Pelham Joseph
Ricoh & Company, Ltd.
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