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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)], [8 Colors], or [8 Colors(Photo)] 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 |
Maximum resolution (dpi) |
|---|---|
11×17 |
602 |
A3 |
613 |
B4 |
708 |
Legal (81/2×14) |
731 |
81/2×13 |
787 |
Letter (81/2×11) |
843 |
A4 |
866 |
B5 |
1000 |
A5, B6, A6, 51/2×81/2 |
1200 |
* If [Black and white] is specified as the Color format in the WIA driver, the value indicates the resolution.
If [Gray Scale] 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 |
Maximum resolution (dpi) |
|---|---|
11×17 |
600 |
A3 |
602 |
B4 |
695 |
Legal (81/2×14) |
729 |
81/2×13 |
785 |
Letter (81/2×11) |
828 |
A4 |
851 |
B5 |
982 |
A5, B6, A6, 51/2×81/2 |
1200 |
* If [Grayscale] is specified as the Color format in the WIA driver, the value indicates the resolution.
If [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 |
Maximum resolution (dpi) |
|---|---|
11×17 |
600 |
A3 |
601 |
B4 |
694 |
Legal (81/2×14) |
729 |
81/2×13 |
785 |
Letter (81/2×11) |
828 |
A4 |
851 |
B5 |
982 |
A5, B6, A6, 51/2×81/2 |
1200 |
* If [Color] is specified as the Color format in the WIA driver, the value indicates the resolution.
Certain original types and resolution settings can reduce scanning quality.
