Developer mixing system

In a development system for developing latent electrostatic images carried by an imaging surface of an electrostatographic processor;

• said development system including a housing having a sump for storing a supply of multi-component developer, and means within said housing for circulating developer along a path running from said sump, through a development zone, and then back into said sump;
• the improvement comprising series hybrid crossmixing means disposed in said path between said sump and said development zone, said crossmixing means including an active section in series with at least one passive section for sequentially blending and mixing developer circulating along said path, said crossmixing means including a pair of parallel passive sections in series with said active section, said passive sections having separate sets of spaced apart, internal deflector vanes which are downwardly inclined to deflect developer toward opposite sides of said housing,