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SpecificationBrotherDS-740DeBrotherADS-3100
Automatic duplex outputOptionalSource OptionalSource
Declared print speed15 ipm or mppmSource 80 ipm or mppmSource
Default sleep delay10 minSource 10 minSource
ENERGY STAR partnerBrother Industries, Ltd.Source Brother Industries, Ltd.Source
Marking technologyN/A (Scanner)Source N/A (Scanner)Source
Off-mode powerNot recorded0.03 WSource
Page format classStandardSource StandardSource
Product typeScannersSource ScannersSource
Sleep-mode power1.2 WSource 1.19 WSource