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8. Appendix
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.
• Certain original types and resolution settings can reduce scanning quality.
If [Binary(Text)], [Binary(Photo)], [Gray Scale], [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 and maximum resolution
A3, 11×17
B4
1
Legal (8
/
1
8
/
×13
8
2
1
Letter (8
/
A4
B5
A5, B6, A6, 5
If [16770K colors] is selected in [Col./Grad.:]
Scan size and maximum resolution
A3
11×17
B4
1
Legal (8
/
166
Scan size
×14)
2
×11)
2
1
1
/
×8
/
2
2
Scan size
×14)
2
Maximum resolution (dpi)
600
693
728
785
825
848
979
1200
Maximum resolution (dpi)
425
432
491
542
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