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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)], or [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) |
|---|---|
A3, 11×17 |
600 |
B4 |
693 |
Legal (81/2×14) |
728 |
81/2×13 |
785 |
Letter (81/2×11) |
825 |
A4 |
848 |
B5 |
979 |
A5, B6, A6, 51/2×81/2 |
1200 |
If [8 Colors], [8 Colors(Photo)] [16770K colors] or is selected in [Col./Grad.:]
Scan size |
Maximum resolution (dpi) |
|---|---|
A3, B4, A4, B5, A5, B6, A6, 11×17, Legal (81/2×14), 81/2×13, Letter (81/2×11) , 51/2×81/2 |
600 |
If [Increase Scanner Memory by Disabling Browser] in [System Settings] is set to [OFF], originals up to the following combinations can be scanned in [16770K colors]:
Scan size |
Maximum resolution (dpi) |
|---|---|
A3 |
425 |
11×17 |
432 |
B4 |
491 |
Legal (81/2×14) |
542 |
81/2×13 |
563 |
A4, B5, A5, B6, A6, Letter (81/2×11) , 51/2×81/2 |
600 |
If the [Increase Scanner Memory by Disabling Browser] setting in [System Settings] is changed, restart the TWAIN driver. Otherwise, resolution settings and other input controls that can be specified on the driver screen will not work properly.
Certain original types and resolution settings can reduce scanning quality.
