Samsung SCX-4500 Series, Service Manual

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Product specification and feature
Service Manual
2-23
Samsung Electronics
- Out Voltage Range : 30 M ~ 1000 M
- Output Control Signal(MHV-PWM) : CPU is HV output when PWM is Low
Developing Voltage (DEV)
- Input Voltage : 24 V DC 10%
- Output Voltage : -220V ~ -450V DC 3%
- Output Voltage Fluctuation range : PWM Control
- Input contrast of the output stability degree : 3 % or less
- Loading contrast : 3 % or less
- Output Voltage Rising Time : 50 ms Max
- Output Voltage Falling Time : 50 ms Max
- Output Loading range : 10M ~ 1000 M
- Output Control Signal (BIAS-PWM) : the CPU output is HV output when PWM is low.
Supply
- Output Voltage : -520 V ~ -750V DC 3% (ZENER using, DEV )
- Input contrast of the output stability degree : under 3 %
- Loading contrast : 3 % or less
- Output Voltage Rising Time : 50 ms Max
- Output Voltage Falling Time : 50 ms Max
- Output Loading range : 10 M ~ 1000 M
- Output Control Signal (BIAS-PWM) : the CPU is HV output when PWM is low.
Paper Exit Sensor
+1,300 V THV
- 430 V DEV
- 730 V SUP
- 1300 V MHV
- 100 V OPC
Main < - > HVPS
Connector
HVPS board supply high voltage for developing Process.
High Voltage controlled by PWM signal from CPU.
Paper Exit Sensor exists on HVPS.