| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner and a developer which have low-temperature fixability, hot offset resistance and heat-resistant storageability, that can cope with an ultrahigh-speed image forming system, and which are excellent in contamination resistance and image density stability.SOLUTION: The toner is obtained, by using a binder resin containing a polyester resin (A), which is obtained from an alcohol component containing a dihydric alcohol compound and a carboxylic acid component containing a rosin compound; and another polyester resin (B), which is obtained from another alcohol component containing a dihydric alcohol compound including an alkylene oxide adduct of a bisphenol compound shown by a specific formula and another carboxylic acid component, as main components, a colorant, a releasing agent and a graft polymer. The developer is obtained by using the toner. The developer is used in an image forming method and a process cartridge which are used in the ultrahigh-speed image forming system. |
