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Appendix: Useful Information on Scanning
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Resolution
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 square
inch (2.54 cm square).
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 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 using a 600 dpi black and white printer, you should set the resolution to
600 dpi.
With a color printer, specifying the resolution at half the resolution of the printer should be fine. For
example, if you want to print scanned paper/photos using a 600 dpi color printer, you should set the
resolution to 300 dpi. 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
Document resolution: 300
dpi
Scanning resolution: 600
dpi
Scale: 200%
Print at twice the size
Scanning resolution/actual scanning
resolution: 600 dpi
Printing resolution: 300
dpi
Setting the Resolution in ScanGear (Scanner Driver)
In ScanGear (scanner driver), you can specify the resolution with Output Resolution in Output Settings on
the Advanced Mode tab.
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Resolution
Summary of Contents for 3301B002
Page 28: ...Page top Page 28 of 997 pages Entering the Date and Time ...
Page 45: ...Page top Page 45 of 997 pages Printing Photos Saved on the Memory Card ...
Page 77: ...Page top Page 77 of 997 pages Printing Documents Macintosh ...
Page 97: ...Page top Page 97 of 997 pages Using Useful Fax Functions ...
Page 111: ...Page top Page 111 of 997 pages Loading Paper ...
Page 114: ...Page top Page 114 of 997 pages Loading Paper in the Cassette ...
Page 127: ...Page top Page 127 of 997 pages Loading a Document in the ADF ...
Page 137: ...Page top Page 137 of 997 pages When Printing Becomes Faint or Colors Are Incorrect ...
Page 139: ...Page top Page 139 of 997 pages Printing the Nozzle Check Pattern ...
Page 141: ...Page top Page 141 of 997 pages Examining the Nozzle Check Pattern ...
Page 149: ...Page top Page 149 of 997 pages Aligning the Print Head ...
Page 198: ...Note See Help for details on the Edit screen Page top Page 198 of 997 pages Editing ...
Page 200: ...Page top Page 200 of 997 pages Printing ...
Page 204: ...Page top Page 204 of 997 pages Selecting the Paper and Layout ...
Page 207: ...Page top Page 207 of 997 pages Editing ...
Page 209: ...Page top Page 209 of 997 pages Printing ...
Page 216: ...Page top Page 216 of 997 pages Printing ...
Page 223: ...Page top Page 223 of 997 pages Printing ...
Page 256: ...Page top Page 256 of 997 pages Cropping Photos Photo Print ...
Page 312: ...Page top Page 312 of 997 pages Stamp Background Printing ...
Page 354: ...Page top Page 354 of 997 pages Reducing Photo Noise ...
Page 510: ...Page top Page 510 of 997 pages Stack of Documents ADF Screen Scan Import Window ...
Page 515: ...Page top Page 515 of 997 pages Save Dialog Box ...
Page 570: ...Page top Page 570 of 997 pages General Tab ...
Page 597: ...Auto Scan Mode Tab Page top Page 597 of 997 pages Scanning in Auto Scan Mode ...
Page 722: ...Page top Page 722 of 997 pages Creating an Address Book ...
Page 747: ...Page top Page 747 of 997 pages Cleaning the Inside of the Machine Bottom Plate Cleaning ...
Page 782: ...Text LCD Page top Page 782 of 997 pages Bluetooth Settings Screen ...
Page 822: ...Page top Page 822 of 997 pages If an Error Occurs ...
Page 878: ...Page top Page 878 of 997 pages Error Message Appears on a PictBridge Compliant Device ...
Page 930: ...Before Installing the MP Drivers Page top Page 930 of 997 pages Installing the MP Drivers ...
Page 976: ...Page top Page 976 of 997 pages Checking Information about the Network ...