| US 7,588,875 B2 | ||
| External surface additive compositions | ||
| Nan-Xing Hu, Oakville (Canada); Cuong Vong, Hamilton (Canada); John F. Graham, Oakville (Canada); and Richard P. N. Veregin, Mississauga (Canada) | ||
| Assigned to Xerox Corporation, Norwalk, Conn. (US) | ||
| Filed on Sep. 02, 2008, as Appl. No. 12/202,794. | ||
| Application 12/202794 is a division of application No. 11/198283, filed on Aug. 08, 2005, granted, now 7,452,646. | ||
| Prior Publication US 2008/0318145 A1, Dec. 25, 2008 | ||
| Int. Cl. G03G 13/08 (2006.01) | ||
| U.S. Cl. 430—123.51 [430/123.41; 430/123.5; 399/159] | 20 Claims |
| 1. An electrophotographic image forming system comprising:
a toner; and
an electrophotographic image forming apparatus comprising a photoreceptor, a latent image forming device for forming an electrostatic
latent image on a surface of the photoreceptor, a developing device for developing the latent image with the toner, and a
transfer device for transferring the toner image to an image receiving member,
wherein the photoreceptor includes at least a silicon overcoat layer, and
wherein the toner comprises toner particles of at least one binder, at least one colorant, and external additives, wherein
the external additives include at least one fluoropolymer, and wherein the fluoropolymer is a perfluoropolyether wax comprising
a segment represented by —(CnF2nO)x—,or a copolymer comprised thereof, wherein n is an integral number ranging from 1 to about 6, and x is the number of repeating
units ranging from about 2 to about 1000.
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