High-Voltage Power-Supply Pca; Figure 1-7 High-Voltage Power-Supply Pca - HP LaserJet Enterprise 700 M712 series Handbuch Zur Fehlerbehebung

High-voltage power-supply PCA

The high-voltage power supply applies positive or negative voltage biases to the following components:
Primary charging roller
●
Developing roller
●
Transfer roller
●
Static charge eliminator
●
Fuser film
●
Figure 1-7
DC controller
The DC controller controls the high-voltage power supply to generate the following biases.
Primary charging bias
●
The primary charging bias is used to charge the surface of the photosensitive drum evenly to
prepare for image formation. The primary charging bias circuit generates the bias.
Developing bias
●
The developing bias is used to adhere toner to an electrostatic latent image formed on the
photosensitive drum. The developing bias circuit generates the bias.
Transfer bias
●
The transfer bias is used to transfer the toner from the photosensitive drum onto the paper. The
transfer bias circuit generates the bias. The transfer bias circuit also generates the reverse bias to
clean the transfer roller.
ENWW
High-voltage power-supply PCA
High-voltage power supply
Primary
charging bias
circuit
Developing
bias circuit
Static charge
eliminatior
bias circuit
Transfer bias
circuit
Fuser
Static charge eliminator
Fuser film
Pressure roller
Cartridge
To primary charge roller
To developing roller
Photosensitive drum
Transfer roller
Engine control system
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