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SMPS AND HVPS
20 July 2005
6.5 SMPS AND HVPS
The SMPS and HVPS are on the same board. The SMPS supplies DC power to
the system. It takes either 110V or 220V and outputs the +5V and +24VS to the
main and other PBAs.
The HVPS creates the high voltage of THV/MHV/Supply/Dev and supplies it to the
toner cartridge. The CPU modifies the voltage settings to provide ideal voltages to
create images. The HVPS part uses the 24V and outputs the high voltage for
THV/MHV/BIAS. Then the outputted high voltage get supplied to the toner, OPC
cartridge and transfer roller.
6-18
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