User`s manual

1-10 Microtek User's Guide for Windows
The table below shows optimal resolution settings for most needs. MPR below
stands for "Match Printer's Resolution."
Printing press or MPR 150-300 dpi 150-3200 dpi
imagesetter
Color dye-sublimation MPR MPR MPR
printer
Black & white MPR 75 dpi 75 dpi
laser printer
Output Device Line Art Grayscale Color
Color desk jet, ink jet, MPR 100-150 dpi 100-150 dpi
thermal printer
Remember that the higher the resolution, the larger your image
file will be. For instance, an 8.5" x 11" color photograph scanned
at 75 dpi takes up about 1.6 megabytes (MB). Doubling resolu-
tion to 150 dpi will increase the file size four times — to approxi-
mately 6.3MB! Going to 300 dpi will increase file size to
26.2MB.
What you need to do then is to select the lowest possible resolu-
tion that still gives you good image quality in order to keep file
sizes manageable.
Comparison of images at different resolutions
150 dpi
300 dpi
The two images were scanned at different resolutions, but
there isn't much difference in the printed result. This is because
all printers and presses have their own maximum resolution.
It's also because the final size is so small that anything over
150 dpi is really unnecessary.