Yes you can, but you must make sure that you print the correct page.
Don’t print the Flexi eGift Card main page – it won’t work when printed out like that. To use your Flexi eGift Card you must choose how to spend it first, and then print that chosen eGift Card or Voucher.
Once you have chosen an eGift Card or Voucher and have “scratched off the panel” to reveal the gift codes, you can then print that page, ready to use in-store. Look for the Print button in the top right corner.