This is a recent thing and might be because I updated the drivers last week.
Model Brother HL-3070CW
When I print out in Word, it prints letter, even though it says A4 in the print screen. When I click on Printer Properties in the Print window it is set to Letter, so I change it to A4, click on apply etc. But it stills prints letter and when I go back into printer properties it has reverted back to letter.
So, I go to the printer control panel in Windows, right click on the default printer (above) and look at printing preferences, the settings for the paper size say A4. When I go to printer properties/advanced/printing defaults it also says A4. The printer properties window from Word continue to say Letter - I have closed word and opened it again but the problem remains.