Canon MP640 Series, Manual

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the Advanced Mode tab.
Example of Appropriate Resolution when Printing to Scale
The scanning resolution is automatically set so that the value set in Output Resolution will be the
resolution of the scanned image. If you set Output Resolution to 300 dpi and scan at twice the size, the
document will be automatically scanned at 600 dpi, and the resolution of the scanned image will be 300
dpi. You can print the document with sufficient quality using a 600 dpi color printer.
When Printing L Size (8.9 cm x 12.7 cm) Photos at Twice the Size
Document resolution: 300
dpi
Output resolution: 300 dpi
Scale: 200%
Scan at twice the size
Actual scanning resolution: 600
dpi
Image resolution/printing resolution:
300 dpi
Appropriate Resolution Settings
Set the resolution according to the use of the scanned image.
For displaying on a monitor: 150 dpi
For printing: 300 dpi
When Output Size is set to Flexible in ScanGear's Advanced Mode tab (Select Source is Platen and the
scale is 100%):
Document Use Color Mode Output
Resolution
Color photo Copying
(Printing) Color 300 dpi
Creating a postcard
Color 300 dpi
Saving to a computer
Color 75 dpi - 300 dpi
Using on a website or attaching
to e-mail Color 75 dpi - 150 dpi
Black and white
photo
Saving to a computer Grayscale 75 dpi - 300 dpi
Using on a website or attaching
to e-mail Grayscale 75 dpi - 300 dpi
Text document
Copying Color, Grayscale or Black
and White
300 dpi
Attaching to e-mail Color, Grayscale or Black
and White
300 dpi
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.
Note
Although you can change Output Resolution in ScanGear (scanner driver), it is recommended that
you scan at the default value.
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