| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an image of high image quality, which is excellent in gradation in a picture area, excellent in sharpness in a character area, and with less toner consumption, in a color toner image formed by overlaying color toner and black (K) toner on top of each other, c. SOLUTION: Every color toner particle is compressed and has a diameter equivalent to a circle (d) of 5 to 10 (μm) when viewed from a direction where a projection area becomes the maximum, a thickness (t) of 1 to 4 (μm), and a flatness d/t shown by a ratio of the diameter equivalent to a circle (d) to the thickness (t) of 2 to 8, and the thickness (t) of the color toner particle is smaller than the thickness (tK) of the black toner particle.</p> |
