Transfer block During the two steps that comprise this block, a toner image on the photosensitive drum transfers to the paper. Step 4: image transfer The toner on the photosensitive drum is transferred to the paper. The transfer bias is applied to the transfer roller to charge the paper positive. The negatively charged toner on the drum surface transfers onto the paper. Figure 1-17 Image transfer Photosensitive drum Paper Transfer roller Step 5: separation from the drum The elasticity of the paper and the curvature of the photosensitive drum cause the paper to separate from the photosensitive drum. The static charge eliminator bias is applied to the static charge eliminator.
The static charge eliminator reduces back side static discharge of the paper after the transfer process for stable paper-feed and print-quality. Figure 1-18 Separation from the drum Photosensitive drum Paper Static charge eliminator Transfer roller 26 Chapter 1 Theory of operation ENWW Transf er bias Static c eliminat harge or bias