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Appendix: Useful Information on Scanning
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Resolution
S309
Resolution
What is Resolution?
The data in the image you have scanned is a collection of dots carrying information about brightness and
color. The density of these dots is called "resolution", and resolution will determine the amount of detail
your image contains. The unit of resolution is dots per inch (dpi). Dpi is the number of dots per inch (2.54
cm).
The higher the resolution (value), the more detail in your image; the lower the resolution (value), the less
detail.
Setting the Resolution in MP Navigator EX
In MP Navigator EX, you can specify the resolution with Scanning Resolution in the Scan Settings dialog
box.
Images for Display on a Monitor
Documents to be viewed on a display should be scanned at 150 dpi, which is close to ordinary monitor
resolution.
For film, set the resolution to 600 dpi since images are enlarged approximately four times their original
size when scanned.
Images for Printing
Images to be printed should be scanned at a resolution that corresponds to the resolution of the printer.
For example, if you want to print documents using a 600 dpi black and white printer, you should set the
resolution to 600 dpi. For film, set to 2400 dpi since images are enlarged approximately four times their
original size when scanned.
With a color printer, specifying the resolution at half the resolution of the printer should be fine. For
example, if you want to print using a 600 dpi color printer, you should set the resolution to 300 dpi for
documents and 1200 dpi for film. However, with a high-resolution printer, printing takes longer than
usual if you set the resolution to half the resolution of the printer.
Example of Appropriate Resolution when Printing to Scale
If you print a document at twice the size both vertically and horizontally, the resolution of the document will
be reduced by half. If the resolution of the original document is 300 dpi, the resolution of the enlarged
document will be 150 dpi. If you print the document with a 600 dpi color printer, the lack of detail in the
image may be obvious. In that case, if you scan at the Scanning Resolution of 600 dpi, the resolution will
be 300 dpi even if you double the size of document and you can print the document with sufficient quality.
Conversely, if you print a document at half scale, it should be sufficient to scan at half the resolution.
When Printing Color Photos at Twice the Size
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Resolution
Summary of Contents for MG8100 series
Page 30: ...Page top Page 30 of 1135 pages Inserting the USB Flash Drive ...
Page 69: ...Page top Page 69 of 1135 pages Printing Web Pages Easy WebPrint EX ...
Page 82: ...Page top Page 82 of 1135 pages Machine Settings ...
Page 85: ...Page top Page 85 of 1135 pages Loading Paper ...
Page 88: ...Page top Page 88 of 1135 pages Loading Paper in the Cassette ...
Page 118: ...Page top Page 118 of 1135 pages Printing the Nozzle Check Pattern ...
Page 194: ...See Help for details on the Edit screen Page top Page 194 of 1135 pages Editing ...
Page 198: ...Page top Page 198 of 1135 pages Printing Stickers ...
Page 205: ...See Help for details on the Print Settings screen Page top Page 205 of 1135 pages Printing ...
Page 207: ...How Can I Move or Copy the Saved File Page top Page 207 of 1135 pages Printing Layout ...
Page 210: ...Page top Page 210 of 1135 pages Selecting the Paper and Layout ...
Page 214: ...Page top Page 214 of 1135 pages Editing ...
Page 282: ...Page top Page 282 of 1135 pages Cropping Photos Photo Print ...
Page 292: ...Page top Page 292 of 1135 pages Opening Saved Files ...
Page 296: ...Page top Page 296 of 1135 pages Changing Layout ...
Page 304: ...Page top Page 304 of 1135 pages Replacing Photos ...
Page 308: ...Page top Page 308 of 1135 pages Cropping Photos ...
Page 316: ...Page top Page 316 of 1135 pages Adding Text to Photos ...
Page 338: ...Page top Page 338 of 1135 pages Printing ...
Page 347: ...Page top Page 347 of 1135 pages Adjusting Color Balance Using Sample Patterns ...
Page 359: ...See Help for details on the Crop window Page top Page 359 of 1135 pages Cropping Photos ...
Page 367: ...Page top Page 367 of 1135 pages Setting a Page Size and Orientation ...
Page 536: ...6 Gently close the Document Cover Page top Page 536 of 1135 pages Placing Film ...
Page 626: ...Page top Page 626 of 1135 pages Navigation Mode Screen ...
Page 628: ... Guide Opens this guide Page top Page 628 of 1135 pages Scan Import Documents or Images Tab ...
Page 675: ...Page top Page 675 of 1135 pages Send via E mail Dialog Box ...
Page 682: ...Page top Page 682 of 1135 pages Correct Enhance Images Window ...
Page 698: ...Page top Page 698 of 1135 pages Save Dialog Box ...
Page 805: ...Page top Page 805 of 1135 pages Scanner Tab ...
Page 905: ...Page top Page 905 of 1135 pages Bluetooth settings Screen ...
Page 934: ...Page top Page 934 of 1135 pages Changing the Print Options ...
Page 1045: ...Page top Page 1045 of 1135 pages Before Printing on Art Paper ...
Page 1073: ...Page top Page 1073 of 1135 pages Using Easy PhotoPrint EX ...
Page 1101: ...Page top Page 1101 of 1135 pages How to Set a Network Key Network Password Passphrase ...
Page 1113: ...Page top Page 1113 of 1135 pages Checking Information about the Network ...