ManualsContentsPreviousNext
Settings

# 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.

The maximum resolution you can specify is 1200 dpi when scanning from the exposure glass, and 600 dpi when scanning from the ADF.

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

The scan size determines the maximum possible resolution.

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

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

Scan size and maximum resolution
Scan size | Maximum resolution (dpi)
--- | ---
Exposure glass | ADF
Legal (81/2 × 14), 81/2 × 13 |  | 600
A4 | 600 | 600
Letter (81/2 × 11) | 602 | 600
B5 JIS | 693 | 600
51/2 × 81/2 | 825 | 600
A5 | 848 | 600
B6 JIS | 979 | 600
A6 | 1,200 |

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

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

Scan size and maximum resolution
Scan size | Maximum resolution (dpi)
--- | ---
Exposure glass | ADF
Legal (81/2 × 14), 81/2 × 13 |  | 300
Letter (81/2 × 11) | 414 | 300
A4 | 425 | 300
B5 JIS | 491 | 300
A5, B6 JIS, 51/2 × 81/2 | 600 | 300
A6 | 600 |