Electrophotography – Control of electrophotography process – Control of fixing
Reexamination Certificate
2005-06-21
2005-06-21
Beatty, Robert (Department: 2852)
Electrophotography
Control of electrophotography process
Control of fixing
C219S216000, C219S510000, C399S330000
Reexamination Certificate
active
06909862
ABSTRACT:
Disclosed is a printer apparatus that ensures temperature control of a heat-up roller in a fixing unit thereof. An image-forming unit forms an image to be transferred onto a recording material. The fixing unit fixes the image onto the recording material. The fixing unit includes a heat-up roller, a heating section for heating the heat-up roller, a power supply section for supplying power to the heating section, and a heat controller for controlling the power supply section. The heat controller is disposed in contact with the inner circumferential surface of the heat-up roller. When heated to temperatures above a predetermined value, the heat controller is thermally deformed and leaves the inner circumferential surface of said heat-up roller to interrupt the power supply of the power supply section to the heating section.
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Noguchi Tomoyuki
Samei Masahiro
Beatty Robert
Matsushita Electric - Industrial Co., Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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