| 摘要 |
PURPOSE:To improve the carriability and to prevent the pollution due to a toner for transfer, by setting the volume resistivity of a transfer material guide member to 10<5>-10<10>OMEGAcm when a transfer paper is guided onto a photosensitive drum, where a developed image is formed, by the transfer material guide member. CONSTITUTION:A developed image 2 is formed on a photosensitive drum 1 (image carrier) by a developed image-forming means. A transfer corona discharger 3 is provided. Resistance material layers 6 where carbon is dispersed in polyethylene to have a volume resistance of 10<5>-10<10>OMEGAcm are provided on metallic transfer material lower and upper guide members 4 and 5, and these members are grounded. The photosensitive drum 1 is rotated in the direction of an arrow, and the developed image 2 is transferred to a transfer paper with corona discharge. Though a high voltage is generated in the transfer process by the corona discharge, guide members 4 and 5 prevent the transfer current with resistance material layers 6; and thus, the carriability of the transfer paper is improved, and the phenomenon of transfer failure and the pollution due to a toner are prevented effectively. |
