Non-magnetic black toner (especially for use in reverse development) containing compound oxide and binder of specified softening point viscosity has reduced content of colorant-free particles

摘要

A non-magnetic black toner contains a resin binder and a pigment which is a compound oxide of two or more metals. A non-magnetic black toner having a softening point viscosity of 4.5 x 10<3> - 2.3 x 10<4> Pa.s contains a resin binder and a pigment which is a compound oxide of two or more metals.