HP Enterprise 500 manual 8High voltage power supply circuits, Circuit Description

High voltage power supply

The high-voltage power supply delivers the high-voltage biases to the following components used to transfer toner during the image-formation process:

●Primary-charging roller (in the cartridge)

●Developing roller (in the cartridge)

●Primary-transfer roller

●Secondary-transfer roller

Figure 1-4High voltage power supply circuits

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M

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The high voltage power supply contains several separate circuits.

Table 1-8High 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.

10 Chapter 1 Theory of operation ENWW