发明名称 Separation device, fixing device, and image forming apparatus
摘要 A separation device includes at least one separator disposed opposite one of a first rotary body and a second rotary body. Each separator includes a front aligned in an axial direction of the one of the first rotary body and the second rotary body and including a recording medium conveyance face over which a recording medium slides. The recording medium conveyance face includes a front edge produced with a burr having a height not greater than about 25 micrometers. A recess produced on the recording medium conveyance face extends in a direction perpendicular to a recording medium conveyance direction. The recording medium conveyance face has a surface roughness defined by one of an arithmetic average roughness not greater than about 1.5 micrometers, a maximum height not greater than about 10.0 micrometers, and a ten point average roughness not greater than about 7.2 micrometers.
申请公布号 US9069298(B2) 申请公布日期 2015.06.30
申请号 US201313953796 申请日期 2013.07.30
申请人 RICOH COMPANY, LTD. 发明人 Mikutsu Yasunari
分类号 G03G15/20 主分类号 G03G15/20
代理机构 Harness, Dickey & Pierce, P.L.C. 代理人 Harness, Dickey & Pierce, P.L.C.
主权项 1. A separation device disposed downstream from a first rotary body and a second rotary body contacting the first rotary body in a recording medium conveyance direction in which a recording medium is conveyed between the first rotary body and the second rotary body, the separation device comprising: at least one separator disposed opposite one of the first rotary body and the second rotary body, each of the at least one separator including: a front aligned in an axial direction of the one of the first rotary body and the second rotary body and including a recording medium conveyance face over which the recording medium slides, the recording medium conveyance face including a front edge produced with a burr extending from an outer surface of the at least one separator having a height not greater than about 25 micrometers; anda recess produced on the recording medium conveyance face and extending in a direction perpendicular to the recording medium conveyance direction, wherein the recording medium conveyance face has a surface roughness defined by one of an arithmetic average roughness not greater than about 1.5 micrometers, a maximum height not greater than about 10.0 micrometers, and a ten point average roughness not greater than about 7.2 micrometers.
地址 Tokyo JP