When running my HP LaserJet Pro M426fdn for the first time I didn't removed touchscreen foil and my finger slipped over when selecting location of my printer. I ended up with having proper language but location set to Estonia and some reports (like Google Cloud Print configuration leaflet) printed in cyrylic.
Unfortunately, due to extreme stupidity of HP engineers you can only change language of your printer using standard configuration menu. But, in order to change location of the printer you have to perform a full factory reset of your hardware.
And here my problems started, because none of the solution I found seemed working on my printer.