Image forming apparatus, image forming method and process cartridge
US7865114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Aug 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00957
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus including an image bearing member, a charging device, an irradiating device, a developing device, a transfer device, a fixing device, and a cleaning device, wherein the image bearing member includes a substrate on which a photosensitive layer and a cross-linked surface layer are accumulated and the cross-linked surface layer comprises a cross-linked material formed by curing a monomer having at least three radical polymerizable function groups without a charge transport structure and a radical polymerizable compound having a charge transport structure by a photo-energy irradiation device, wherein the toner has a volume average particle diameter of from 1 to 5 μm and an average circularity of from 0.95 to 0.98, wherein external additives added to the toner satisfy the following relationship: 1<3X/5+Y<3, wherein X represents the amount of an external additive having a primary particle diameter of from 10 to 20 nm and Y represents the amount of another external additive having an primary particle diameter of from 100 to 200 nm and X and Y satisfy the following relationship: X<Y, 0<X≦1 and 1≦Y, and wherein the cleaning device includes a cleaning blade made of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.