| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrostatic latent image developing magnetic single component toner which can keep offset resistance, improved fixing property in a low temperature region and sufficient heat resistance even when the toner is used for a high-speed image forming apparatus using a magnetic single component developing system. SOLUTION: The electrostatic latent image developing magnetic single component toner comprises at least a binder resin and a release agent, wherein the release agent contains a release agent showing 65 to 85°C melting point (Wp1) and a release agent having 130 to 160°C melting point (Wp2) measured by a differential scanning calorimeter. The glass transition temperature Tg of the toner measured by a differential scanning calorimetry satisfies 70≤Wp2-Tg≤100. COPYRIGHT: (C)2005,JPO&NCIPI
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