---- --Electrification rollerOPC drumPowersupplyunit2. OperatiOn DescriptiOn2.1 Electrophotographic Process Mechanism(1) Electronic photography ProcessElectronic photography process is outlined as follows:1. ElectrificationElectric voltage is impressed on CH roller and the surface of CPC drum is electrified.2. ExposureLED head radiates light on the electrified surface of OPC drum following the imagesignal. Electric charge on the radiated OPC drum surface abates depending on theintensity of light and static latent image is formed on the OPC drum surface.3. DevelopmentElectrified toner is adhered to the static latent image on the OPC drum by staticelectricity and a visible image is formed on the OPC drum surface.4. TranscriptA sheet of paper is put upon the OPC drum surface and the toner image is transferredon the paper by impressing electric charge on its back side by the transcript roller.5. Drum CleaningDrum cleaning blade eliminates the remaining toner on the OPC drum after transfer.6. Belt CleaningBelt cleaning blade eliminates the remaining toner on the belt.7. FusingThe toner image on the paper is fused by adding heat and pressure.(2) ElectrificationElectric voltage is impressed on electrification roller touching on the OPC drum surface andthus the OPC drum surface is electrified.16 Service Manual Y108500-4
