发明名称 Image forming apparatus equipping improved transfer fixing apparatus
摘要 An image forming apparatus includes an image bearing member, a latent electrostatic image forming unit, a developing unit, an intermediate transferring unit which has an intermediate transfer belt and a plurality of rollers supporting the intermediate transfer belt, and a transfer fixing unit. The transfer fixing unit has a transfer fixing belt, a plurality of rollers supporting the transfer fixing belt, a heating member, and a pressurizing member forming a transfer fixing nip with the transfer fixing belt. A first roller, which is one of the plurality of rollers supporting the intermediate transferring belt, is opposite to a second roller, which is one of the plurality of rollers supporting the fixing transfer belt. The first roller and the second roller form a transfer nip between the intermediate transferring belt and the fixing transfer belt. The diameter of the first roller is smaller than the diameter of the second roller.
申请公布号 US7551882(B2) 申请公布日期 2009.06.23
申请号 US20070757150 申请日期 2007.06.01
申请人 RICOH COMPANY, LTD. 发明人 SETO TAKASHI;FUJITA TAKASHI;MIYAWAKI KATSUAKI;KAYAHARA SHIN;NAKAFUJI ATSUSHI;SUZUKI KAZUMI;TAMURA HIROHMI;TAKAGAKI HIROMITSU
分类号 G03G15/16 主分类号 G03G15/16
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