A resin binder composition for a non-contact fixing process comprising two or more polyesters having different softening points, wherein the polyesters comprise at least one polyester having a softening point of 80.degree. C. or more and less than 120.degree. C. (low-softening point polyester), and at least one polyester having a softening point of 120.degree. C. or more and 160.degree. C. or less (high-softening point polyester), wherein each of said polyesters is obtained from a carboxylic acid component consisting essentially of an aromatic carboxylic acid compound, and wherein the high-softening point polyester is a cross-linked polyester; a toner for a non-contacting fixing process comprising the resin binder composition, and a developer comprising the toner for a non-contacting fixing process; and a method for fixing the toner in a non-contact fixing process.