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scan is a CSS media feature that can be used to check what the scanning process (if any) of the output device is. The word scanning used in this context is not the same as with scanning a book or document into an image format using a scanner. Scanning here refers to the process in which an image is painted into a television (or other device) screen.
The definition of 'scan' in that specification.
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|Feature||Android||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|