Abstract: A toner for developing an electrostatic image comprises a binding resin for a toner and a charge control agent including an azo-type iron complex salt represented by the following chemical formula (1) (in the chemical formula (1), R1 and R3 are the same or different to each other and are an alkyl group having a straight chain or a branch chain of 3 to 8 carbons; R2a, R2b, R4a and R4b are the same or different to each other and are selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxyl group, a halogen atom, a nitro group and a carboxyl group; A+ indicates m(H+)+n(K+)+p(Na+), which m, n and p satisfy numerical equations of m+n+p=1, 0.7?m?1, 0?n?0.3 and 0?p?0.3), wherein an average particle size thereof is 1 to 4 microns, and a specific volume resistivity thereof is ranging from 0.2×1015 to 7×1015 ?·cm.

Abstract: The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved electrostatographic imaging member having a charge transport layer that is dual-dopant, wherein operating life improvement is achieved by incorporating a small amount of compatible thermalsetting resin and polyhedral oligomeric silsesquioxane into the layer. Incorporation of these resins have been shown to increase charge transport life.

Abstract: An electrostatic recording element suitable for use as a receiving sheet in an electrostatic transfer process, consisting essentially of: a translucent, non-conductive base selected from the group consisting of paper, a polyester film, and a polyvinyl fluoride film; a photoconductive layer on the surface of said base comprising a photoconductive zinc oxide and a dye sensitizer suspended in an insulating resin binder selected from the group consisting of a vinyl acetate - crotonic acid copolymer and epoxy esters; and a dielectric polymer resin film overlying said photoconductive layer selected from the group consisting of polyvinyl acetate, vinyl acetate - crotonic acid copolymer, and acrylonitrile - styrene copolymer.