Canon ImageCLASS MF726 CDW COPY or SCAN function outputs blank page but PRINT function is O.K.
I bought a brand new MF726 CDW in 2016. But I did not open until a year later. The COPY or SCAN function outputs a blank page while the print function is O.K. I notice that the scanning light in Platen Glass never lid up even though the motor and bel...