Canon PIXMA MG2920 User Manual - Page 384
How to Set the Resolution, Appropriate Resolution Settings
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Resolution The data in the image you have scanned is a collection of dots carrying information about brightness and color. The density of these dots is called "resolution", and resolution will determine the amount of detail your image contains. The unit of resolution is dots per inch (dpi). Dpi is the number of dots per inch (2.5 cm). The higher the resolution (value), the more detail in your image; the lower the resolution (value), the less detail. How to Set the Resolution You can set the resolution in Resolution on the dialog. (Scanning from a Computer) tab of the Settings Appropriate Resolution Settings Set the resolution according to the use of the scanned image. Item Type Use Color Mode Color photo Black and white photo Copying (Printing) Creating a postcard Saving to a computer Using on a website or attaching to e-mail Saving to a computer Using on a website or attaching to e-mail Copying Text document (document or magazine) Attaching to e-mail Scanning text using OCR Color Color Color Color Grayscale Grayscale Color, Grayscale, or Black and White Color, Grayscale, or Black and White Color or Grayscale Appropriate Resolution 300 dpi 300 dpi 300 dpi 150 dpi 300 dpi 150 dpi 300 dpi 150 dpi 300 dpi Important • If you double the resolution, the data size of the scanned image 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. 384