Charging member, process cartridge, and image forming apparatus
US9280079B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2015 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Sep 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging member includes a conductive base material and a conductive outermost layer provided on the conductive base material, wherein the conductive outermost layer has a ten-point average surface roughness Rz of 2 μm to 20 μm and contains a resin and particles in which particles having a particle diameter of 5.0 μm or more and a circularity of 0.8 or less are 30% by number or less with respect to the total number of particles having a particle diameter of 5.0 μm or more and particles having a particle diameter of less than 5.0 μm and a circularity of 0.8 or less are from 20% by number to 80% by number with respect to the total number of particles having a particle diameter of less than 5.0 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.