| 摘要 |
PROBLEM TO BE SOLVED: To obtain a stable transfer electric field in the transfer device of an image forming device, which has a secondary transfer process. SOLUTION: A secondary transfer device is composed so that a transfer electric field from a constant current power source can be applied, via an electrode disposed inside an intermediate transfer body, to a recording medium carried by being held between the intermediate transfer body and a contact transfer body. The electrode may have either a fixed form or a roller form. In the case of the fixed form, the frictional resistance of a portion that contacts the intermediate transfer body is minimized. In either case, by interposing an intermediate resistive element between the electrode and the intermediate transfer body, discharge breakdown of the intermediate transfer body can be prevented, which ensures more stable transfer electric field.
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