Heater, fixing device and image forming apparatus

Details Heater, fixing device and image forming apparatus Heater, fixing device and image forming apparatus

2007-11-13

2007-11-13

Fuqua, Shawntina (Department: 3742)

Electric heating

Heating devices

Combined with diverse-type art device

C219S469000, C219S470000, C219S471000, C118S060000, C430S350000, C430S353000, C399S285000, C399S286000, C399S279000, C399S328000

Reexamination Certificate

active

11634164

ABSTRACT:
A heater includes: a hollow tube sealed hermetically and reduced in pressure, the interior of the hollow tube being divided by at least one partition wall into a plurality of regions arranged side by side in a longitudinal direction of the tube; an electron source provided in each of the divided regions, the electron source being supported inside the hollow tube in an electrically insulated state from the hollow tube; a power supply that applies a voltage between the hollow tube and the electron source with the electron source as a negative polarity side; and the electron source emitting electrons toward an inner periphery surface of the hollow tube to heat the hollow tube.

REFERENCES:
patent: 5822669 (1998-10-01), Okabayashi et al.
patent: A-11-133776 (1999-05-01), None
patent: A-2000-242108 (2000-09-01), None
patent: B2-3324351 (2002-07-01), None
patent: A-2002-260540 (2002-09-01), None
patent: A-2004-319418 (2004-11-01), None

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