发明名称 |
Magnetic toner and process cartridge |
摘要 |
A magnetic toner is formed of magnetic toner particles each comprising at least a binder resin and a magnetic iron oxide. The magnetic toner is provided with improved developing performances by realizing an appropriate surface-exposure state of the magnetic iron oxide, which is represented by a wettability characteristic in methanol/water mixture liquids of the magnetic toner such that it shows a transmittance of 80% for light at a wavelength of 780 nm at a methanol concentration in a range of 65-75% and a transmittance of 20% at a methanol concentration in a range of 66-76%.
|
申请公布号 |
US6630275(B2) |
申请公布日期 |
2003.10.07 |
申请号 |
US20020095991 |
申请日期 |
2002.03.13 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HIRATSUKA KAORI;TANIKAWA HIROHIDE;ONUMA TSUTOMU;OKUBO NOBUYUKI;NAKANISHI TSUNEO |
分类号 |
G03G9/08;G03G9/083;(IPC1-7):G03G9/083 |
主分类号 |
G03G9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|