Toner and fixing method

Details Toner and fixing method Toner and fixing method

2005-08-16

2005-08-16

Dote, Janis L. (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

C430S108100, C430S108400, C430S108800, C430S109400, C430S124300

Reexamination Certificate

active

06929894

ABSTRACT:
A toner is disclosed which is composed of toner particles containing at least a binder resin, a colorant and a wax, and an external additive. The wax has, in its DSC endothermic curve, a maximum endothermic peak at 55° C. to 80° C. within the temperature range from 30° C. to 160° C., the maximum endothermic peak having a half width of from 2° C. to 7° C., and the binder resin is composed chiefly of a polyester resin. The toner has a dynamic elastic modulus from 5×102to 1×105dN/m2at 140° C., and its ratio to a dynamic elastic modulus at 170° C. is from 0.05 to 50, and the toner contains 10 to 20% by weight of THF-insoluble matter A of a binder resin component after 8 hours from the start of extraction and 1 to 10% by weight of THF-insoluble matter B of the binder resin component after 24 hours from the start of extraction, the ratio of A to B, B/A, being from 0.1 to 0.8. Also disclosed is a fixing method making use of this toner.

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Thomson-Derwent machine-assisted translation of JP 2001-272812 A (pub. Oct. 2001).
Japanese Patent Office Machine-Assisted English-Language Translation of JP 2001-272812, (pub. Oct. 2001).

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