Canon Community

This seems to be a common problem here has anyone found a common reason?? My printer suddenly decided to print bands in the first 40mm of the print on A3 paper, did the roller cleaning and nozzle checks all ok, tried a smaller print test on a5, no ba...

Hi, I have a the Canon RF 100-400 is usm lens which is noisy when slightly shaken when off camera and held vertical, i can see the inner lens components moving around, when connected to the camera and switched on the inner components do in fact "ener...