Color developers for use in multi-color electrophotography and image formation method using the same

摘要

A set of color developers for use in multi-color electrophotography comprises (a) a yellow developer, (b) a magenta developer, (c) a cyan developer, and (d) a black developer, in which the viscoelasticity (tan delta 1) of each of the yellow developer, the magenta developer and the cyan developer is smaller than the viscoelasticity (tan delta 2) of the black developer at a storage modulus (G'( omega )) of 105 dyn/cm2. This set of color developers is particularly suitable for use with a digital multi-color electrophotography.