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.

The maximum resolution available for scanning is determined by the original's horizontal measurement (width).

For example, the width of an A0 ⋅ 2 original is 33.2 inch. Since this is the same as an A0 original, both A0 ⋅ 2 and A0 originals can be scanned at the same maximum resolution of 652 dpi.

Originals of any vertical length can be scanned at up to 1200 dpi resolution.

The maximum available scanning resolution for each original size is shown below:

Important

Large originals require more memory. Increase available memory by closing other applications before scanning large originals.

 

 

 

Width (inch)

Maximum resolution (dpi)

 

 

 

 

 

 

 

Maximum

36.0

600

 

 

 

 

 

 

 

36⋅44

36.0

600

 

 

 

 

 

 

 

Engineering E

34.0

635

 

 

 

 

 

 

 

30⋅42

30.0

720

 

 

 

 

 

7

 

 

 

 

 

Architecture E

24.0

900

 

 

 

 

 

 

 

Engineering D

22.0

981

 

 

 

 

 

 

 

Double Letter

11.0

1200

 

 

 

 

 

 

 

Legal

8.5

1200

 

 

 

 

 

 

 

Letter

11.0

1200

 

 

 

 

 

 

 

A0⋅2

33.2

652

 

 

 

 

 

 

 

A1⋅2

23.4

923

 

 

 

 

 

 

 

A0

33.2

652

 

 

 

 

 

 

 

A1

23.4

923

 

 

 

 

 

 

 

A2

16.6

1200

 

 

 

 

 

 

 

A3

11.7

1200

 

 

 

 

 

 

 

A4

8.3

1200

 

 

 

 

 

Reference

To specify the scanning area or resolution when using the machine as a network TWAIN scanner, see TWAIN Driver Help.

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