发明名称 THERMAL FIXING DEVICE
摘要 PROBLEM TO BE SOLVED: To prevent toner from sticking to a separating pawl and from resticking to a transfer material by specifying the surface resistance of coating at the top end of the separating pawl. SOLUTION: Masking is made at the spray area of a coating material 17 so as to make it in a coated state. The end part of a coated area made by spray coating is finished as if it is gradated, so that an area where releasing property is fully achieved is made to satisfy that the surface resistance of the coating material is 10<8>Ω. Thus, the flourine-coating 17 of PFA or PTFE or the like whose surface resistance is 10<8>Ωand where the releasing property is excellent is made on the surface of the top end of the separating pawl 5 at least on the side of a fixing roller. The triboelectrification of the fixing roller and the separating pawl 5 is prevented, and the stuck quantity of the toner to the fixing roller is reduced, so that the stuck quantity of the toner to the separating pawl 5 itself is reduced and the problem of image staining caused by resticking the stuck toner of the top end of the separating pawl 5 to the transfer material is reduced.
申请公布号 JPH09114303(A) 申请公布日期 1997.05.02
申请号 JP19950271279 申请日期 1995.10.19
申请人 CANON INC 发明人 SAKAI HIROAKI;KATAOKA HIROSHI
分类号 G03G15/20;B65H29/54;(IPC1-7):G03G15/20 主分类号 G03G15/20
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