Optimum scanning resolutions

 

Outputdevice

 

Grayscale

Color

 

Monochrome

 

80-170

 

 

printer

 

 

 

 

 

 

 

 

 

Desktop or off ice

 

150-240

150 - 240

 

color printer

 

 

 

 

 

 

 

 

 

Printing press or

 

150-350

150-350

 

imagesetter

 

 

 

 

 

 

 

 

The higher the resolution you select, the larger the resulting image file. For example, an 8.5 x 11-inch photograph scanned at 300 dpi can produce a 24MB file. The same photograph scanned at 72 dpi creates a file of only 1.36MB. Large files take longer to process and print. Consider the limitations of your computer and hard disk drive when you select a resolution. To keep file sizes manageable, select the lowest possible resolution that gives acceptable quality.

Tip:

As a rule of thumb for any image except line art, use scanning resolutions that are one third of your output resolution. For example, use a scanning resolution of up to 110 with a 300 dpi laser printer and up to 170 with a 600 dpi laser printer. For EPSON Stylus printers, choosefrom 100 to 240 dpi for

720 dpi output and from 100 to 150 dpi for 360 dpi output.

Tip:

For printing on a commercial printing press, multiply the lines per inch (lpi) the press prints by 2 to determine the scanning resolution. For example, if the lpi is 150, scan at 300 dpi. (lf the resulting file is too large, try multiplying the lpi by 1.5 to determine the scanning resolutibn.)

Tip:

If you plan to enlarge an image when you print it, scan it at a higher resolution than you normally would.

Capturing Images From Within Applications

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