| 摘要 |
PROBLEM TO BE SOLVED: To improve gradation property on a high light part and to reduce excessive toner quantity sticking to a high density part, by using a low concentration toner and a high concentration toner. SOLUTION: In this image forming device performing image exposure and development by low concentration toner, based on image data, and image exposure and development by a high concentration toner, the device generates image data for the low concentration toner and the high concentration toner from image density data, and respectively performs image exposure for the low concentration toner and the high concentration toner or after performing the gradation correction to each data. |
