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Chapter 5
Scanning Techniques
File Size Estimates
ScanGear CS-S displays an estimated file size for your scan in the status area
on the lower left of the ScanGear CS-S window. The following table provides
some estimates for the same 6 inches x 4 inches color photograph scanned at
typical modes, resolutions, and output sizes.
Scan Mode Scan Resolution (dpi) Output Size File Size
Color (24 bit) Screen/Web 75 dpi 6" x 4" 396 KB
Fax 200 dpi 6" x 4" 2.75 MB
BJ-Printer 360 dpi 6" x 4" 8.90 MB
Laser 300 dpi 6" x 4" 24.7 MB
1200 dpi 6" x 4" 98.9 MB
Color (36 bit) Screen/Web 75 dpi 6" x 4" 791 KB
Fax 200 dpi 6" x 4" 5.49 MB
BJ-Printer 360 dpi 6" x 4" 17.8 MB
Laser 300 dpi 6" x 4" 49.4 MB
1200 dpi 6" x 4" 198 MB
Grayscale (8 bit) Screen/Web 75 dpi 6" x 4" 132 KB
Fax 200 dpi 6" x 4" 938 KB
BJ-Printer 360 dpi 6" x 4" 2.97 MB
OCR 300 dpi 6" x 4" 2.96 MB
Laser 300 dpi 6" x 4" 8.24 MB
1200 dpi 6" x 4" 33.0 MB
Grayscale (12 bit) Screen/Web 75 dpi 6" x 4" 264 KB
Fax 200 dpi 6" x 4" 1.83 MB
BJ-Printer 360 dpi 6" x 4" 5.93 MB
OCR 300 dpi 6" x 4" 4.12 MB
Laser 300 dpi 6" x 4" 16.5 MB
1200 dpi 6" x 4" 65.9 MB
Black and White/
Text Enhanced Screen/Web 75 dpi 6" x 4" 16.5 KB
Fax 200 dpi 6" x 4" 117 KB
BJ-Printer 360 6" x 4" 380 KB
OCR 300 dpi 6" x 4" 264 KB
Laser 300 dpi 6" x 4" 1.05 MB
1200 dpi 6" x 4" 4.12 MB
The color mode, resolution, and size also affect the length of time it takes to
scan an image. If you are scanning at a high resolution in Color mode, the
scan may take a lot longer than if you are scanning at lower resolutions, or in
Black and White or Grayscale.