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When Using as a TWAIN Scanner

This section explains the relationship between resolution and scan size when using the machine as a TWAIN scanner.

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

Note

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

If [Binary(Text)], [Binary(Photo)], or [8 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)

A4, B5, A5, B6, A6, A3, 11×17, B4, Legal (81/2×14), 81/2×13, Letter (81/2×11), 51/2×81/2

600

If [Gray Scale] is selected in [Col./Grad.:]

Scan size and maximum resolution

Scan size

Maximum resolution (dpi)

Letter (81/2×14)

520

81/2×13

540

A4

578

Letter (81/2×11)

587

B5, A5, B6, A6, 51/2×81/2

600

If [16770K colors] is selected in [Col./Grad.:]

Scan size and maximum resolution

Scan size

Maximum resolution (dpi)

Legal (81/2×14)

300

81/2×13

312

A4

333

Letter (81/2×11)

339

B5

385

A5

472

51/2×81/2

479

B6

546

A6

600