| 摘要 |
<p>PURPOSE:To reduce a contact area with transfer paper, and to prevent offset development, by making fine particles adhere to the projecting part of a fine rugged shape, which is worked on the circumferential surface of a rotary driving body for carrying the transfer paper. CONSTITUTION:Transfer paper S fed by a feed device 5 is ovelapped on the surface of a photosensitive body 1, the charge of opposite polarity to a toner of the surface of the photosensitive body is irradiated by a transfer charging device 6, and a toner image is transferred onto transfer paper SS. The transfer paper S peeled off from the surface of the photosensitive body passes through a feed- out roller 7, is pressed against the surface of a hot plate 12a by a fixing roller 12, and is thermally fixed. In this case, on the circumferential surface of the fixing roller 12 and a paper discharge roll 13, rugged shape is formed by knurling, and to this projecting part 21b, fine particles 22 are made to adhere, by which a contact area with the transfer paper is made very small. In this way, it is prevented that offset development is generated due to the face that an unfixed toner of the picture surface adheres onto the circumferential surface of the roller.</p> |
