发明名称 IMAGE FORMING APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide an image forming apparatus in which a high quality image can be formed by uniformizing a pressing force on a body to be transferred in a transfer nip part, thereby preventing transfer density irregularities, deformation of a transfer image or the like. SOLUTION: The image forming apparatus is provided with: a plurality of image carriers 40 on which electrostatic latent images are formed; a developing device 61 which renders the electrostatic latent images visible; an intermediate transfer member 10 on which images formed by the developing device 61 are sequentially transferred and layered; and a secondary transfer device 22 which transfers the images formed on the intermediate transfer member 10 to a recording medium. The secondary transfer device 22 has a secondary transfer roller 23 provided to be contactable with and separable from the image carrying surface of the intermediate transfer member 10 and a support plate 25 supporting the secondary transfer roller 23. A gear train 13 for rotating the secondary transfer roller 23 is provided at one end of the support plate 25 along the axial direction of the secondary transfer roller 23 and also, a gear train for rotating a rotator other than the secondary transfer roller 23 is provided at the other end, so that force for biasing the support plate 25 toward the intermediate transfer member 10 is made uniform by the rotation of both of the rotators. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007003578(A) 申请公布日期 2007.01.11
申请号 JP20050180411 申请日期 2005.06.21
申请人 RICOH CO LTD 发明人 MINBU RYUICHI
分类号 G03G15/16;G03G15/01 主分类号 G03G15/16
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