Ricoh Aficio BP20N, Руководство по обслуживанию

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SMPS AND HVPS
G144/G145 6-20 SM
4. Developing Voltage (DEV)
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Input voltage: 24 V DC ± 15%
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Output voltage: -200V ~ -600V DC ±20V
• Output voltage fluctuation range: PWM control
• Input contrast of the output stability degre :±5 % or less
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Loading contrast: ± 5 % or less
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Output voltage rise time: 50 ms max
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Output voltage fall time: 50 ms max
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Output loading range: 10M Ω ~ 1000 M Ω
•
Output control signal (BIAS-PWM): CPU output = HV output when PWM is low.
5. Supply
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Output voltage:-400 V ~-800V DC ±50 V (ZENER with DEV )
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Input contrast of the output stability degree:under ± 5%
•
Loading contrast: ± 5% or less
•
Output voltage rise time: 50 ms max
•
Output voltage fall time: 50 ms max
•
Output loading range: 10 M Ω .~ 1000 M Ω
•
Output control signal (BIAS-PWM): CPU = HV output when PWM is low.