| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming method which enables preventing the deterioration of picture due to re-transfer and hardly generates a change of chromaticity when performing the image formation of many sheets under various environments such as normal temperature/normal humidity and high temperature/high humidity. SOLUTION: In this image forming method, a multicolor picture or a full- color picture is formed on transfer material by four image forming units which respectively use a first toner, a second toner, a third toner and a fourth toner. Therein, the amount of electrification of the first toner is larger than those of the second toner and the third toner, the amount of electrification of the third toner is larger than that of the fourth toner, further, the average circularity of the third toner is larger than those of the first toner and the second toner, and the first, second, third and fourth toners are respectively different in color tone. |
