TONER, DEVELOPER, IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a toner which improves fixability by control of the dispersed state of a wax near the toner surface and by improvement of anti-hot-offset properties, and is excellent also in long-term storage stability by improvement of blocking resistance. SOLUTION: The toner contains at least a binder resin, a colorant and a wax, wherein a wax content is 3-21 mass% of the total mass of the toner as a value obtained by expressing absorbed heat quantity of the wax measured by a DSC (differential scanning calorimetry) method in terms of mass. The toner has a peak intensity ratio (P2,850/P828) of 0.01-0.40 between a peak (2,850 cm-1) originating in the wax and a peak (828 cm-1) originating in the binder resin measured by an FTIR-ATR (Fourier transform infra-red attenuated total reflection) method, as a value which defines the amount of the wax present in the regions from the surfaces of toner particles to a depth of 0.3μm. At least part of the wax is present as a plurality of independent wax dispersed particles included in the toner particles. COPYRIGHT: (C)2004,JPO&NCIPI