| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming device capable of preventing generation of transfer omission image even if a transfer material is in a highly humid environment, of electrostatically attracting a transfer material to a conveyance belt without applying an attraction bias, and of reducing cost with a simple configuration. <P>SOLUTION: An image forming device 100 comprises a tension roller 25 in contact with a conveyance belt 24; and a attraction roller 28 arranged opposite to the tension roller 25 and in contact with a passing transfer material P. By connecting the tension roller 25 to a ground potential and by configuring the attraction roller 28 in an electrically floating state, the transfer material P is electrostatically attracted to the conveyance belt 24. The configuration prevents that a secondary transfer bias from a secondary transfer roller 9 is flowing into the attraction roller 28 via a transfer material in a highly humid environment, and a transfer omission image is prevented. Further, it is unnecessary to apply an attraction bias from the attraction roller 28, leading to eliminating an unnecessary power supply and a simple configuration. <P>COPYRIGHT: (C)2012,JPO&INPIT |
