Filter scanner comparison

bit-depth-grayscale:16-bit ✕ simplex-scanning-speed-color:1-ppm ✕

When disabled: selecting a filter value replaces the current value.
When enabled: you can select multiple values for the same filter (OR logic).

scanner daily duty cycle

Unknown. Help us by suggesting a value. 1/1

ADF duplex scanning speed color

Unknown. Help us by suggesting a value. 1/1

audible noise

Unknown. Help us by suggesting a value. 1/1

simplex scanning speed grayscale

1 ppm 1/1

USB version

2 1/1

warranty period

Unknown. Help us by suggesting a value. 1/1

optical scan resolution

3200 x 3200 dpi 1/1
Plustek OpticPro ST640

Plustek OpticPro ST640
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