Non-magnetic yellow toner
US6159647A · kind A · utility
7Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1998 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Aug 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/104
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a non-magnetic yellow toner for use in full-color image forming apparatuses, such as full-color electrostatic copying machines and full-color laser beam printers, comprising: PA1 non-magnetic toner particles containing a binder resin having an acid value of 1 to 30 KOHmg/g, and a coloring material composed of a compound classified as C. I. pigment yellow 180; PA1 the toner particles having a roundness of 0.94 to 1.0, a standard roundness deviation of not more than 0.045, and a volume mean particle size of 2 to 9 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.