Dry toner, dry developer and process for forming electrophotographic images
US4985328A · kind A · utility
18Cited by
6References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Sep 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/104
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A dry toner composition comprising (A) a binder resin, (B) a colorant and (C) charge control agents comprising a special metal complex of oxycarboxylic acid (C-1) and a special metal complex of azo compound (C-2) can provide high quality images without causing toner flying even after printed for a long period of time, and thus is useful for providing a dry developer and a process for forming images using said dry developer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.