Toner set and full-color image-forming method suitable for use of the toner set
US6265125A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1999 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Apr 8, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09708
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a toner-set comprising yellow toner, magenta toner, cyan toner and black toner, in which the black toner comprises black toner particles comprising at least a binder resin and a black pigment and having a standard deviation of degree of roundness of not more than 0.045; PA1 the yellow toner comprises yellow toner particles comprising at least a binder resin and a yellow pigment and having a standard deviation of degree of roundness of not more than 0.045 and an average degree of roundness larger than that of the black toner particles, PA1 the magenta toner comprises magenta toner particles comprising at least a binder resin and a magenta pigment and having a standard deviation of degree of roundness of not more than 0.045 and an average degree of roundness larger than that of the black toner particles, and PA1 the cyan toner comprises cyan toner particles comprising at least a binder resin and a cyan pigment and having a standard deviation of degree of roundness of not more than 0.045 and an average degree of roundness larger than that of the black toner particles. The present invention also provides a method for forming full-color images suitable for…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.