The Ink Duct Foil is an integral part of the CPC system. It is fitted into the Ink Duct Tray. The purpose of the foil is to act as a medium between the cam system and the ink duct roller. It prevents the ink from coming into contact with the highly engineered cam system. As a consumable product, the Ink Duct Foil is designed to be disposed off at the end of each print run which enables a fast and easy colour change.