Advanced Guide > Scanning > Scanning with Other Application Software > Appendix: Useful Information on Scanning >ResolutionResolutionWhat is Resolution?The data in the image you have scanned is a collection of dots carrying information about brightness andcolor. The density of these dots is called "resolution", and resolution will determine the amount of detailyour image contains. The unit of resolution is dots per inch (dpi). Dpi is the number of dots per squareinch (2.54 cm square).The higher the resolution (value), the more detail in your image; the lower the resolution (value), the lessdetail.Setting the Resolution in MP Navigator EXIn MP Navigator EX, you can specify the resolution with Scanning Resolution in the Scan Settings dialogbox.Images for PrintingImages 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 to600 dpi.With a color printer, specifying the resolution at half the resolution of the printer should be fine. Forexample, if you want to print scanned paper/photos using a 600 dpi color printer, you should set theresolution to 300 dpi. However, with a high-resolution printer, printing takes longer than usual if you setthe resolution to half the resolution of the printer.Example of Appropriate Resolution when Printing to ScaleIf you print a document at twice the size both vertically and horizontally, the resolution of the document willbe reduced by half. If the resolution of the original document is 300 dpi, the resolution of the enlargeddocument will be 150 dpi. If you print the document with a 600 dpi color printer, the lack of detail in theimage may be obvious. In that case, if you scan at the Scanning Resolution of 600 dpi, the resolution willbe 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 SizeDocument resolution: 300dpiScanning resolution: 600dpiScale: 200%Print at twice the sizeScanning resolution/actual scanningresolution: 600 dpiPrinting resolution: 300dpiSetting the Resolution in ScanGear (Scanner Driver)In ScanGear (scanner driver), you can specify the resolution with Output Resolution in Output Settings onthe Advanced Mode tab.Page 654 of 997 pagesResolution
