发明名称 IMAGE FORMING APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing both diffused transfer and graving to inconspicuous levels. SOLUTION: A roller with an elastic layer comprising an elastic material is used as a transfer roller 4 as a roller member. A device which electrostatically transfers a toner image by passing a transfer current of 6-60 [nA/mm<SP>2</SP>] between the transfer roller 4 and a photoreceptor 1 while pressing the roller 4 on the photoreceptor 1 under a pressure of 0.01-1.6 [N/mm<SP>2</SP>] is used as a transfer device using the transfer roller 4. A toner containing a modified polyester resin and manufactured by a polymerization method is specified to a user as a toner for forming a toner image. COPYRIGHT: (C)2004,JPO&NCIPI
申请公布号 JP2004258320(A) 申请公布日期 2004.09.16
申请号 JP20030049037 申请日期 2003.02.26
申请人 RICOH CO LTD 发明人 KASAI TADASHI;SHU HIYO;AOKI MITSUO;SUZUKI HIROHARU;FURUICHI YASUSHI;TAKAHASHI YUTAKA;WATANABE SHIGERU
分类号 G03G9/087;G03G15/16;(IPC1-7):G03G15/16 主分类号 G03G9/087
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