Table 5-7 High-voltage power supply circuits
Circuit Description
Primary-charging-bias generation DC negative bias is applied to the surface of the photosensitive drum to prepare it
for image formation.
Developing-bias generation DC negative bias adheres the toner to each photosensitive drum during the image-
formation process.
Primary-transfer-bias generation DC positive bias transfers the latent toner image from each photosensitive drum onto
the ITB.
Secondary-transfer-bias generation Two DC biases, one positive and one negative, transfer the toner from the ITB onto
the paper.
124 Chapter 5 Theory of operation ENWW
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