Cambridge Printers, Colour It In, Masterange and The Direct Printing Company all joined the scheme, which is "designed to support and promote participating leading-edge firms" that use Oc kit.

"The Quality Centre is a holistic initiative by Oc to help develop its customers' business," said UK manager for the Oc Quality Centre Nick Chalk. "Since its launch in autumn 2004, the Oc Quality Centre initiative already has 29 print service providers across Europe."

All four companies were unveiled at a signing ceremony on Oc's Ipex stand.