Processes for controlling developer aging
US5569572A · kind A · utility
7Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/097
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for the preparation of developer compositions comprising providing a first developer comprised of carrier and first toner comprised of resin, pigment, polyolefin, compatibilizer, charge control agent, and surface additive, and adding thereto a second replenisher comprised of carrier, and second toner comprised of resin, pigment, polyolefin, compatibilizer, charge control agent, and surface additive, and wherein the surface additive of the second toner is present in a lesser amount than the surface additive of the first toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.