Oki C7200 Service Manual - Page 37

Service Guide - C7000 Series Chapter 2 Operation Page: 16 (5) Transfer (5) Transfer - The transfer roller, which is made of conductive sponge, presses paper against the surface of the OPC drum and brings the paper into intimate contact with the drum surface. The paper is placed on the drum surface, and positively (opposite to the charge of the toner) charged by the transfer roller on its back. Applying positive high voltage from the power supply to the transfer roller moves the positive charge induced by the transfer roller to the paper surface at the contact portion between the transfer roller and the paper, the paper surface drawing the negatively charged toner from the drum surface. Copyright 1999, Okidata, Division of OKI America, Inc. All rights reserved.