Image forming device with aggregation-forming unit that removes adherents
US7853172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2008 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Mar 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0225
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming device including: an image holding member; a charging member; a latent image-forming unit; a developing unit that develops the electrostatic latent image formed on the image holding member with a developer including a toner and a carrier, the toner comprising an external additive having first inorganic particles with a volume average particle diameter of 80 nm to 300 nm, and the carrier including a core material having a magnetic powder dispersed in a resin and a resin covering layer that covers the core material; a transfer unit; a removal unit; and an aggregation-forming unit that, by contacting a surface of the charging member and rotating in accordance with rotation of the charging member, removes adherents on the surface of the charging member, including the first inorganic particles, from the surface of the charging member, and forms aggregations in which the removed first inorganic particles are aggregated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.