Heat fixing apparatus and grease composition for the heat fixing apparatus
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United States of America Patent
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Feb 28, 2017
Grant Date -
Nov 5, 2015
app pub date -
Apr 22, 2015
filing date -
Apr 30, 2014
priority date (Note) -
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Abstract
Provided is a heat fixing apparatus, which suppresses the depletion of a lubricant applied to an inside of the heat fixing apparatus and which has long life and high reliability, the heat fixing apparatus including a heating rotary member and a pressurizing rotary member, and containing, as a lubricant in a sliding portion, (A) perfluoropolyether oil having a kinetic viscosity at 40° C. of from 100 to 200 mm2/s and an evaporation loss being 1.2 mass % or less in a case where 10 g of a sample of the perfluoropolyether oil is placed in a petri dish having an inner diameter of 41 mm and allowed to stand still at 250° C. for 200 hours and (B) polytetrafluoroethylene.
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