HP (Hewlett-Packard) CF081A#BGJ Benutzerhandbuch
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 1-4
High voltage power supply circuits
Y
M
C
K
The high voltage power supply contains several separate circuits.
Table 1-8
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.
for image formation.
Developing-bias generation
DC negative bias adheres the toner to each photosensitive drum during the image-
formation process.
formation process.
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Chapter 1 Theory of operation
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