ELECTROPHOTOGRAPHIC TONER, ELECTROPHOTOGRAPHIC DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an electrophotographic toner capable of giving an image with easy deinking property while maintaining low-temperature fixability, and to provide an electrophotographic developer containing the electrophotographic toner, a toner cartridge accommodating the electrophotographic toner, and a process cartridge and an image forming apparatus, using the electrophotographic developer.

SOLUTION: The electrophotographic toner contains a crystalline polyester resin, an amorphous polyester resin, a colorant and a release agent, wherein a relaxation modulus G1(t=1) after one second obtained by stress relaxation measurement at 60°C is 2×106to 1×107Pa and a relaxation modulus G2(t=50) after 50 seconds is 7×104to <8×105Pa. Provided are also: the electrophotographic developer containing the electrophotographic toner; the toner cartridge accommodating the electrophotographic toner; and the process cartridge and the image forming apparatus, using the electrophotographic developer.

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