| abstract |
A toner comprising a toner binder and a colorant,ncomposed of resin particles produced by causing annextension reaction and/or crosslinking reaction of andispersion formed of a reactive group-containingnprepolymer (α) contained in an aqueous medium with annextension agent and/or a crosslinking agent (β). Thentoner has a Wadell practical sphericity of 0.90 to 1.00nand is superior in fluidity, transferability, thenstorage stability under heat, low temperature fixingnability and hot offset resistance. |