Toner for developing electrostatic image and image forming method
US6033817A · kind A · utility
24Cited by
3References
213Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1997 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0827
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner for developing an electrostatic image is disclosed which has at least one endothermic peak in the temperature region of 120.degree. C. or below in differential thermal analysis and contains, in its particles having particle diameters of 3 .mu.m or larger, not less than 93% by number of particles having a circularity of at least 0.90 and less than 30% by number of particles having a circularity of at least 0.98. The toner does not cause the re-transfer under high transfer current conditions and can realize the formation of good images with high image density. Also, an image forming method using the toner is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.