FIXING DEVICE AND IMAGE FORMING APPARATUS

A fixing device includes a nip formation pad pressing against a pressure rotator via a fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The nip formation pad includes a base and a first thermal conductor sandwiched between the base and the fixing rotator at th...

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Main Authors ISHIGAYA YASUNORI, IKEBUCHI YUTAKA, SHIMOKAWA TOSHIHIKO, MIMBU RYUUICHI, HONDA HARUYUKI, SAITO KAZUYA, HATTORI YOSHIO, SHOJI KEITARO, YAMAGUCHI YOSHIKI
Format Patent
LanguageEnglish
Published 02.06.2016
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A fixing device includes a nip formation pad pressing against a pressure rotator via a fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The nip formation pad includes a base and a first thermal conductor sandwiched between the base and the fixing rotator at the fixing nip and having a first thermal conductivity greater than a basic thermal conductivity of the base. A first heater and a second heater are disposed opposite an inner circumferential surface of the fixing rotator to heat the fixing rotator. A rotatable light shield moves to a shield position where the light shield is interposed between the second heater and the fixing rotator to shield the fixing rotator from the second heater. The second heater is disposed at a location where the light shield screens the second heater more readily than the first heater.
Bibliography:Application Number: US201514952522