| 摘要 |
PROBLEM TO BE SOLVED: To provide a tandem color image forming system of a simple configuration by which an image is not adversely affected by an unused image forming means and which is eco-friendly and can reduce energy consumption. SOLUTION: In the image forming means that is not used, a main electrifier is turned off, voltage attracting toner is applied as developing roll bias, voltage, with which a toner layer is not formed on a developing roll, is applied to a feeding roll, and voltage, which is lower than that at a normal primary transfer time, is applied to a primary transferring means. |
