Canon imageclass mf6560cx 사용자 가이드

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The data in the image you scan is a collection of dots carrying 
information about brightness and color. The density of these 
dots is called “resolution,” and “dpi” (dots per inch) refers to the 
number of dots in one inch.
You can specify a resolution in [Image Quality] in the MF 
Toolbox settings dialog box, or in [Output Resolution] in the 
ScanGear MF.

● Images for Display on a Monitor

Images for display on a monitor in general should be scanned at 
a resolution of 75 dpi.

● Images for Printing

Images to be printed should be scanned at a resolution which 
corresponds to the resolution of the printer.

With a color printer, the colors are expressed as a certain percentage of 
ink pigment so scanning your document at half the resolution of the 
printer should be fine.

● Printing Scale

For example, if you want to print a document which is twice the 
original size both vertically and horizontally, the resolution of 
your document will be reduced by half. In such a case, scan the 
original document at double the resolution so that you can print 
the document with sufficient quality, even if you double the size 
of the document. Conversely, if you want to print a document at 
a reduced size, it should be sufficient to scan at half the 
resolution.

● Resolution and Data Size

If you double the resolution, the image data will be four times 
greater. If the data is too large, processing speed will slow down 
significantly, and you may experience malfunctions such as lack 
of memory. Make sure the resolution corresponds to the 
planned use of the image and set it at the lowest level possible.