| 摘要 |
PROBLEM TO BE SOLVED: To simplify a circuit for supplying a high voltage to a plurality of transfer rolls of a image forming device of tandem system. SOLUTION: In an image forming device for transferring and compositing toner images to a transfer belt in order, by forming the toner images on a plurality of photoreceptor drums disposed along the transfer belt and applying voltage to the transfer rolls disposed corresponding to each photoreceptor drum, the output voltage of one power unit (DC-DC converter) outputting a prescribed high voltages is divided by resistors r1K, R1, R2, R3 and r2Y, and then each output voltage is taken out so that the output voltage to the transfer roll of the downstream side becomes a higher voltage than the output voltage to the transfer roll of the upstream side, and supplied to each transfer roll. |
