| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner using a crystalline resin as a binder resin, enabling fixing at a constant temperature and a constant speed regardless of a type of paper.SOLUTION: In a toner including at least a crystalline resin as a binder resin, a tetrahydrofuran (THF) soluble content of the toner includes 5% or more as a peak area of a component having a molecular weight of 100,000 or greater in a molecular weight distribution measured by gel permeation chromatography (GPC), and the tetrahydrofuran soluble content of the toner has a weight-average molecular weight (Mw) of 20,000 to 60,000. In a diffraction spectrum of the toner obtained by an x-ray diffraction apparatus, a ratio of (C) integrated intensity of the spectrum derived from a crystalline structure to a sum of the (C) and (A) integrated intensity of the spectrum derived from a non-crystalline structure [(C)/((C)+(A))] is preferably 0.13 or greater. |
