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发明申请
US20080013994A1 Fuser roller, fusing unit, image-forming apparatus, and method thereof 审中-公开
定影辊，定影单元，成像设备及其方法

Fuser roller, fusing unit, image-forming apparatus, and method thereof
摘要：
A fuser roller and a fusing unit including the fuser roller are to be used in an image-forming apparatus. The fuser roller includes a tubular fusing portion, an inner tube, and a heating portion. The inner tube is inserted into the fusing portion. The heating portion is installed to enclose an outer surface of the inner tube and press against an inner surface of the fusing portion, and to radiate heat. The fusing portion is surface treated to have a roughness factor of Ra 3-5μm.
摘要（中）：

在图像形成装置中使用定影辊和包括定影辊的定影单元。 定影辊包括管状定影部，内管和加热部。 将内管插入定影部。 加热部分安装成封闭内管的外表面并压靠定影部分的内表面并辐射热量。 定影部分被表面处理以具有Ra≤3.5μm的粗糙度因子。

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