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When Using the TWAIN Driver or the WIA Driver

This section explains the relationship between resolution and scan size when using the TWAIN driver or the WIA driver with the machine.

To specify the scan area or resolution on the machine you are using as a network TWAIN scanner directly, see the TWAIN driver Help.

If [Binary(Text)], [Binary(Photo)], [Gray Scale], [8 Colors], [8 Colors(Photo)], or [16770K colors] is selected in [Col./Grad.:]

The scan size determines the maximum possible resolution.

Refer to the table below for the maximum resolution available for each scan size.

Exposure Glass

Scan size and maximum resolution

Scan size

Maximum resolution (dpi)

Letter (81/2×11), A4, A5, B5, 51/2×81/2, B6

600

A6

1200

ADF

Scan size and maximum resolution

Scan size

Maximum resolution (dpi)

Legal (81/2×14), 81/2×13, Letter (81/2×11), A4, A5, B5, 51/2×81/2, B6, A6

600

Note

  • Certain original types and resolution settings can reduce scanning quality.