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In order to print from your Chromebook, you required to setup Cloud printing on the computer as well as the printer. You can get instructions from the link below.
Canon instructions : https://support.usa.canon.com/kb/index?page=content&id=ART117419&actp=search&viewlocale=en_US&searchid=1455659293347
Link 2 : http://www.laptopmag.com/articles/how-to-set-up-google-print-on-your-chromebook
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