November 2003 © TOSHIBA TEC 14 - 5 e-STUDIO3511/4511 TRANSFER UNIT
14
14.6 High-Voltage Power Supply
High-voltage power supply outputs the voltage of positive/negative polarity.
When the voltage of positive polarity is supplied to the 2nd transfer roller, the toner will be supplied from
the intermediary belt to the paper.
When the voltage of negative polarity is supplied to the 2nd transfer roller, the toner on the 2nd transfer
roller is transferred to the transfer belt reversely. The toner on the transfer belt is eliminated by the
cleaning unit and thus cleaning of the 2nd transfer roller is performed.
CPU
LCA-301-1
DVDON-0
DVAON-0
BUFFER
PWA-HVT
+1000V,
-1000V
2nd transfer roller
D/A converter
Fig. 14-601