| 摘要 |
PROBLEM TO BE SOLVED: To excellently maintain a transporting performance of recording paper and the transferring performance of a toner image, in the case of simultaneously transferring the toner image on both front and rear sides of the recording paper. SOLUTION: This device makes respective toner image of several picture on an original either front and rear side severally formed on synchronous position of the respective periphery on the photoreceptor drum 10 and the toner image receptor 15, holds the photoreceptor drum 10 which is made as a small diameter drum of 10 to 50mm radial in press contact with respect to the toner image reception body 15 so as to form a nip part N of 1 to 6mm depth (n). Thus, the recording paper P transported while held in close contact with the toner image receptor 15 is transported without causing slippage in a transfer area on the nip part N, the excellent transfer performance is realized, and the separation from the drum surface is facilitated by suppressing curvature (r) of the belt surface to be small. |
