Invention Grant
- Patent Title: Developing roller for image forming apparatus
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Application No.: US14955499Application Date: 2015-12-01
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Publication No.: US09696652B2Publication Date: 2017-07-04
- Inventor: Tae-hyun Kim
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: S-PRINTING SOLUTION CO., LTD.
- Current Assignee: S-PRINTING SOLUTION CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Staas & Halsey LLP
- Priority: KR10-2014-0192548 20141229
- Main IPC: G03B15/08
- IPC: G03B15/08 ; G03G15/08

Abstract:
An electrophotographic image forming apparatus has a developing roller, wherein a glossiness of a surface of the developing roller is in a range of about 4 to about 15, the developing roller includes a plurality of protruding beads, a number average distance (Rsm) between the protruding beads is in a range of about 200 μm to about 400 μm, a supplying roller includes a plurality of foam cells, a number average size of the foam cells is in a range of about 300 μm to about 500 μm, and the developing roller is arranged to rotate at a rotation linear velocity that is about 120% to about 150% of a rotation linear velocity of a photoreceptor.
Public/Granted literature
- US20160187808A1 ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS Public/Granted day:2016-06-30
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