The technique uses the company's FM screen technology and involves creating tiny holes into the font that are invisible to the reader, with no impact on clarity.
Clive Want, senior production manager, said: "We have always printed black solid text using 100% black ink, but we have developed this idea and we intend to reduce all text to a 90% screen.
"We are the only newspaper company that uses the FM screen technology in the UK, so we believe that this is a UK first."
The company prints the majority of its own titles including the Eastern Daily Press, East Anglian Daily Times and the Hunts Post.
As of Tuesday, 60% of its titles will be printed with the new system, with the majority of the remaining titles taking on the process shortly afterwards.
Want added: "The changes don't change the quality of the product, it doesn't make it grainy.
"It also means that we are saving on ink costs, but it's also the right thing to do in terms of the environment as we are using less ink."
The initial idea was submitted to the company's internal Green Champion network last year by Paul Wheeler, a business analyst that works for the Archant Life division.
