i was unable to scan documents with windows 10 scanner app it the error produced was (problem scanning)
so here is a way i have found to scan document on windows 10
first download the canon mp170 drivers from canon website
second (go to control panel)
three (view devices and printers)
four (right hand click on canon mp170 printer)
five ( click start scan and follow the instructions)
i hope this info helps somebody

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