| abstract |
(57) [Summary] [Object] To provide a developer having improved low-temperature fixing property, anti-offset property, carrier-contamination resistance, and filming resistance and which can be sufficiently applied to high-speed fixing. [Structure] The developer is composed of polyester resin or a mixture of polyester resin and styrene-acrylic resin. A binder resin having an acid value of 50 to 50 KOHmg / g and two kinds of waxes having different melting points are used, and the acid value and melting point of each wax are adjusted as necessary. |