Canon MG8100 series On-Screen Manual page 818

Although you can change Output Resolution in ScanGear, it is recommended that you scan at the
default value.
For displaying on a monitor: 150 dpi
For printing: 300 dpi
When Output Size is set to Flexible in ScanGear's Advanced Mode tab (scale is 100%)
Document
Film
Copying
(Printing)
Color photo Copying
(Printing)
Creating a postcard
Saving to a computer
Using on a website or attaching
to e-mail
Black and white Saving to a computer
photo
Using on a website or attaching
to e-mail
Text document Copying
Attaching to e-mail
Scanning text using OCR
Important
If you double the resolution, the file size quadruples. If the file is too large, the processing speed will
slow down significantly, and you will experience inconvenience such as lack of memory. Set the
minimum required resolution according to the use of the image.
Use
Color
Color
Color
Color
Color
Grayscale
Grayscale
Color, Grayscale or Black
and White
Color, Grayscale or Black
and White
Color or Grayscale
Color Mode Output
Resolution
1200 dpi
300 dpi
300 dpi
75 dpi - 300 dpi
75 dpi - 150 dpi
75 dpi - 300 dpi
75 dpi - 150 dpi
300 dpi
150 dpi
300 dpi - 400
dpi
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