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Up till a couple days ago my Pixma TS6120 printer/scanner/copier worked fine.  Then I fiddled with another pgm that may have messed up my driver.  It will still print and copy but it won't scan.  How do I know which driver I already have and what ver...
I have a Canon Pixma MG6120 printer that has scanned documents properly to a pdf file in the past, but will not do so now. The last time I scanned a doc to pdf was July 1 when I was running Win 7 Home Premium with whichever driver was then installed....