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 |