Electrophotography – Having particular structure – Modular or displaceable
Reexamination Certificate
2009-01-12
2011-11-29
Porta, David (Department: 2884)
Electrophotography
Having particular structure
Modular or displaceable
C399S107000, C399S110000, C399S328000, C399S329000, C399S330000, C219S216000
Reexamination Certificate
active
08068765
ABSTRACT:
A fixing device of the present invention is arranged so that: (i) at least both ends of a planar heat-generating member come close to or touch an outer surface of a fixing roller, said both ends being in a circumferential direction when viewed in an axial direction of the fixing roller; and (ii) the planar heat-generating member has, in the vicinity of both the ends, shapes formed gently with respect to the outer surface of the fixing roller when viewed in the axial direction. An almost whole inner surface area of the fixing belt wound around the planar heat-generating member and the fixing roller touches the planar heat-generating member or the fixing roller. The fixing belt is naturally formed, without being distorted at an area where the fixing belt touches the heating member. This allows a fixing device using a planar heat-generating belt type fixing method, which provides a short warm-up time, to be excellent in heat efficiency, consume less power, and have a fixing belt which does not slip easily.
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Porta David
Renner , Otto, Boisselle & Sklar, LLP
Sharp Kabushiki Kaisha
Vu Mindy
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