Toner
US7638251B2 · kind B2 · utility
20Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2007 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Sep 7, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides a toner which is excellent in its low-temperature fixing property and high-temperature offset resistance regardless of the types of paper, and constantly provides high-quality images regardless of environments and does not generate image defects even after prolonged use. In a master curve of the toner at a reference temperature of 150° C., a difference between a storage modulus at a frequency of 0.1 Hz and a storage modulus at a frequency of 1000 Hz is set in a rage from 0 to 2.5×105 Pa, where the activation energy determined from a shift factor is brought to a range from 50 to 130 kJ/mol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.