| 摘要 |
This invention is directed to toner and developer compositions, as well as the use of such compositions in electrostatographic imaging systems, the toner composition being comprised of resin particles and pigment particles, and from about 0.1 percent to about 10 percent based on the weight of the toner particles, a para-halo phenyl carboxylic acid charge enhancing additive of the formula: <IMAGE> wherein X is a halogen, R is an alkylene group containing from 1 to about 3 carbon atoms, and n is the number zero or 1. |
