Magnetic carrier for electronic reproduction coated with a nitrogen containing silicone resin
US5258253A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1992 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Feb 20, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0823
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a two-component type developer comprising a toner and a coated magnetic carrier wherein said toner has an electroconductivity lower than 3.5.times.10.sup.-10 S/cm and the coating of said magnetic carrier consists of a silicone resin having as its component unit a basic nitrogen atom-containing organic group bonded to a silicone atom (N-containing silicone resin). Such developer is capable of forming images having a high image density and a high image quality, particularly as a white developer or a color developer if developing is carried out even under ordinary conditions, since the toner has its charge quantity maintained in an appropriate range in the developing step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.