| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the occurrence of problems such as the interference of voltage and the shortness of insulation distance while reducing cost of components and reducing the packaging area of a board in an image forming device provided with a plurality of toner image forming units each having a member, to which an AC-superimposed bias superimposed with AC voltage on DC voltage is applied. <P>SOLUTION: The image forming device is provided with: a first generating part 183k for generating the AC voltage in the AC-superimposed bias to be applied to the member(s) 112 to be applied arranged at prescribed one or multiple toner image forming units by transforming AC voltage generated at an AC voltage generating part 182; a second generating part 183ymc for generating the AC voltage in the AC-superimposed bias to be applied to the member(s) 112 arranged at the remaining toner image forming unit(s) by transforming applied AC voltage applied to a connection line 184 of electrically connecting the AC voltage generating part 182 and the first generating part 183k; and a switching part 186 for switching whether the AC voltage is generated at the second generating part 183ymc or not. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
