发明名称 |
Fixing apparatus and recording apparatus |
摘要 |
In a heat roll consisting of a mandrel and a surface layer, this invention comprises a fixing apparatus and a recording apparatus, wherein a thickness of the surface layer is formed not exceeding the thickness determined by a square root of the product of a heat diffusion rate of the surface material and a nip time required for a form to pass a nip zone, and a thickness of the mandrel is formed not less than the thickness determined by a square root of the product of a heat diffusion rate of the mandrel material and a one rotational period of the mandrel. Since the surface layer and the mandrel are so specified for the thickness as mentioned, a quantity of heat flowing from the mandrel into the surface layer multiplies, and thus a high fixing strength is obtainable. The fixing apparatus and the recording apparatus are provided further with a cleaning device high in cleaning capacity.
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申请公布号 |
US5023464(A) |
申请公布日期 |
1991.06.11 |
申请号 |
US19900584616 |
申请日期 |
1990.09.19 |
申请人 |
HITACHI, LTD.;HITACHI KOKI CO., LTD. |
发明人 |
MITSUYA, TERUAKI;FUJIWARA, SHIGETAKA;ENDOU, MICHIO;TERAKADO, AKIRA |
分类号 |
G03G15/20 |
主分类号 |
G03G15/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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