Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1996-09-11
2000-07-18
Walberg, Teresa J.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219216, 219478, 399334, G03G 1520
Patent
active
060910593
ABSTRACT:
A low cost, compact heat roller device is provided which includes a heat generating resistance for increasing the temperature of the heat roller wherein the heat generating resistance is divided into two parts in order to correspond to passage widths of different recording materials. The heating power of one of these heat generating resistances is changed and the temperature increase of a non-paper transport area of the heat roller is suppressed. Specifically, the heat roller device includes a heat roller and a press roller opposite the heat roller, two heat generating resistances formed on an outer surface of the heat roller which generate heat independently of one another, a common electrode for supplying current and separately arranged additional supply electrodes. The time during which the respective heat generating resistance is on, is changed, in relative terms, according to the object to be heated, and thus the heating power is changed.
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patent: 5402211 (1995-03-01), Yoshikawa
Akiyama Kazuhiro
Sato Hiroto
Pelham J.
Safran David S.
Ushiodenki Kabushiki Kaisha
Walberg Teresa J.
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