Belt type fixing apparatus and image forming apparatus having the same
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United States of America Patent
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-
Jun 18, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jan 9, 2017
filing date -
Jul 18, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A belt type fixing apparatus includes a fixing belt, a fixing roller disposed to face the fixing belt, a nip forming member that is disposed inside the fixing belt and presses the fixing belt to the fixing roller to form a fixing nip, first and second regulating surfaces that are provided at opposite ends of the nip forming member and restrict an axial movement of the fixing belt, and first and second guide surfaces that are provided inside the fixing belt and guide rotation of the fixing belt. The first regulating surface and the second regulating surface include at least one regulating step portion which is not in contact with one end of the fixing belt, respectively. The first guide surface and the second guide surface include at least one guide step portion which is not in contact with an inner surface of the fixing belt, and the at least one regulating step portion and the guide step portion are formed to be staggered from each other.
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