The Sun is to offer print buyers the same digital benefits as online subscribers by printing a unique access code in each of its 2.2m daily copies.

InkJet printing technology supplied by Kodak has been fitted across all The Sun’s presses in the UK and Ireland. It means that each press will print a unique code in every paper from this Sunday onwards.

The Sun goes behind a paywall as of Thursday and digital access will cost £2 a week, versus 40p a day (and 50p on Sundays) for the print edition.