| 摘要 |
PURPOSE:To recover used developing liquid and to reuse it with the recovering by providing such a mechanism that developing liquid density is maintained in a fixed range. CONSTITUTION:The quantity of used image forming grains is previously calculated from an input signal 107 by each; the supply of replenishing developing liquid is controlled by a developing liquid density control part 106; when the image forming grains are used for image forming and become insufficient in the recovered developing liquid tank 104, they are supplied from the replenishing developer liquid tank 101. Therefore, as for the developing liquid density, the fixed range to be in is always secured. Thus, the used developing liquid can be recovered and reused. |
