Oki OKIPAGE 6w Maintenance Manual

Also see for OKIPAGE 6w: Quick setup User manual Specifications Manual Del Usuario Guide de l'utilisateur

Contents

2 - 102.5 Electro-Photographic Process(1) Electro-photographic processThe electro-photographic process is outlined below.1 ChargingThe surface of the OPC drum is charged negatively and uniformly by applying the DCvoltage to the CH roller.2 ExposureLight emitted from the LED head irradiates the negatively charged surface of the OPCdrum. The surface potential of the irradiated surface attenuates to form the electrostaticlatent image corresponding to the image signal.3 Development and residual toner recoveryThe negatively charged toner is brought into contact with the OPC drum, adhering to theelectrostatic latent image on the OPC drum by static electricity. This adhesion causesthe electrostatic latent image to change to a visible image.At the same time, the residual toner on the OPC drum is attracted to the developingrollerby static electricity.4 TransferWhen paper is placed over the image drum surface, the positive charge which isopposite in polarity to that of the toner, is applied to the reverse side by the transfer roller.The toner is attracted by the positive charge and is transferred onto the paper. Thisresults in the transfer of the toner image formed on the image drum onto the paper.5 CleaningThe cleaning roller temporarily attracts the residual toner on the transferred OPC drumwith static electricity, then returns the toner to the OPC drum.6 FusingThe transferred unfused toner image is fused to a sheet of paper by applying heat andpressure to the image.Figure 2-5 is a flow for the electro-photographic process.