Toner for developing electrostatic latent images, method for forming images and apparatus for forming images
US6455216B2 · kind B2 · utility
0Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Mar 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09783
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner for developing electrostatic latent images comprises: a colorant; a polyester resin; a negative charge controlling agent comprised of a chromium complex compound; and a positive charge controlling agent, wherein the polyester resin has an acid value Z of 15 to 33 mgKOH/g, a hydroxyl value Y of 4 to 17 mgKOH/g and a number-average molecular weight (Mn) of 5200-7000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.