Invention Grant
- Patent Title: Charging member having two surface layers
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Application No.: US18030871Application Date: 2020-10-14
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Publication No.: US11977340B2Publication Date: 2024-05-07
- Inventor: Youngphil Ji , Jisoo Heo
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Spring
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Spring
- Agency: Brooks, Cameron & Huebsch, PLLC
- International Application: PCT/US2020/055491 2020.10.14
- International Announcement: WO2022/081148A 2022.04.21
- Date entered country: 2023-04-07
- Main IPC: G03G15/02
- IPC: G03G15/02

Abstract:
An example charging member has a conductive support, a conductive elastic body layer on the conductive support, a first surface layer on the conductive elastic body layer, and a second surface layer on the first surface layer. The first surface layer includes a binder resin and a first plurality of first particles dispersed in the binder resin of the first surface layer, the second surface layer includes the binder resin, a second plurality of first particles, and second particles, the second plurality of first particles and the second particles being dispersed in the binder resin of the second surface layer, and an average diameter d1 of the first particles is 3 μm≤d1≤6 μm and an average diameter d2 of the second particles is 20 μm≤d2≤26 μm.
Public/Granted literature
- US20230367237A1 CHARGING MEMBER HAVING TWO SURFACE LAYERS Public/Granted day:2023-11-16
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