Image forming method

Details Image forming method Image forming method

2007-09-18

2007-09-18

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

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

To produce color reproduction

C430S107100

Reexamination Certificate

active

10925328

ABSTRACT:
An image forming method for forming a full color toner image by overlaying four color electrostatic image developing toners of black, yellow, magenta and cyan, wherein at least one of the four color electrostatic image developing toners is a toner containing a large diameter external additive in a larger amount and at least one is a toner containing the large diameter external additive in a smaller amount, in which the primary particle diameter of the large diameter external additive is from 150 nm to 2,000 nm, the content of the large diameter external additive in the toner containing the large diameter external additive in larger amount is from 0.06% by weight to 4.0% by weight and the content of the large diameter external additive in the toner containing the large diameter external additive in the smaller amount is not more than 0.05% by weight.

REFERENCES:
patent: 6689522 (2004-02-01), Yamazaki et al.
patent: 7016634 (2006-03-01), Kitani et al.
patent: 2004/0043316 (2004-03-01), Miho et al.
patent: 2001-92173 (2001-04-01), None
patent: 2002-311775 (2002-10-01), None
patent: 2002-372808 (2002-12-01), None
English Abstract for Japanese Patent Application No. 2001-92173 dated Apr. 6, 2001.
English Abstract for Japanese Patent Application No. 2002-311775 dated Oct. 25, 2002.
English Abstract for Japanese Patent Application No. 2002-372808 dated Dec. 26, 2002.

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