Heating apparatus having heater with branch

Details Heating apparatus having heater with branch Heating apparatus having heater with branch

1991-11-01

1993-04-20

Grimley, A. T.

Photocopying

Contact printing

Light boxes

219216, 219543, 219549, G03G 1520

Patent

active

052047237

ABSTRACT:
A heating apparatus includes a heater, the heater including a main resistance layer and a subordinate resistance layer branched from said main resistance layer, which extend in a direction crossing with a movement direction of a recording material and which are supplied with electric power; a selector for selecting a resistance layer for supplying electric power; and a controller for controlling an effective voltage applied to said heater in accordance with selected resistance layer.

REFERENCES:
patent: 1093968 (1914-04-01), Bicknell
patent: 3832524 (1974-08-01), Takiguchi
patent: 3934112 (1976-01-01), Lakhani
patent: 4075455 (1978-02-01), Kitamura et al.
patent: 4628183 (1986-12-01), Satomura
patent: 4801968 (1989-01-01), Kogure et al.
patent: 4883941 (1989-11-01), Martin et al.
patent: 5045891 (1991-09-01), Senba et al.
patent: 5051784 (1991-09-01), Yamamoto et al.
patent: 5162635 (1992-11-01), Sato et al.

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