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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.

Exposure Glass

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.

Scan size and maximum resolution

Scan size

Maximum resolution (dpi)

A3, 11×17

600

B4

693

Letter (81/2×14)

728

81/2×13

784

Letter (81/2×11)

825

A4

848

B5

979

A5, 51/2×81/2, B6, A6

1200

Note

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