Patent ID: 7320850
Filing Date: 2008-01-22
Classification: G03G

Abstract:
1. A magenta toner comprising magenta toner particles which comprises at least a binder resin, a colorant, and a wax, wherein: the magenta toner has one or plural heat-absorption peaks in a temperature range of 30 to 200° C. in a heat-absorption curve obtained using a differential scanning calorimeter, and a maximum value of a maximum heat-absorption peak in the one or plural heat-absorption peaks is in a range of 65 to 105° C.; the magenta toner when measured in a powder form by spectroscopic analysis has a reflectance of 15 to 45% at a wavelength of 480 nm and a reflectance of 65 to 90% at a wavelength of 630 nm; the magenta toner when measured in a powder form has a lightness L* of 45 to 75; and the colorant (a) is present in amounts from 0.2 to 1.8 parts by weight per 100 parts by weight of the binder resin and (b) comprises 70% by number or more of particles having particle sizes of 0.05 to 0.5 μm with respect to total colorant.