If you are using Windows PC, this may be a problem related to the printer driver “PS”. Please select “uPrint BW PCL” (for black and white printing) or “uPrint Color PCL” (for color printing) to retry.
Alternatively, please check the paper type under Print Settings is “A4” in your software application being used e.g. MS Word. This can ensure the printout is fitted in and printed in A4 size.