TWO-COMPONENT DEVELOPER, REPLENISHING DEVELOPER, AND METHOD FOR IMAGE FORMATION

摘要

PROBLEM TO BE SOLVED: To provide a two-component developer which allows a high-definition image to be obtained with a smaller toner laid-on level than a conventional one and allows a color gamut matching printing to be obtained and is capable of coping with a high speed and of forming an image with a stable tinge, even in long-term use.

SOLUTION: The two-component developer contains a magenta toner and a magnetic carrier, wherein the magenta toner has following characteristics: (i) when a concentration of the magenta toner in a chloroform solution is represented by Cm (mg/ml) and the absorbance of the solution at a wavelength of 538 nm is represented by A538, a relationship between Cm and A538 satisfies formula (3) 2.00*and chroma C*obtained in a powder state satisfy 35.0≤L*≤45.0 and 60.0≤C*≤72.0; and (iii) the absolute value of the triboelectric charge quantity of the magenta toner measured by a two-component method by using the magenta toner and the magnetic carrier is in a range of 50 to 120 mC/kg.

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