A belt is used to transfer ink from the ink rollers to the printing plate. The belt is typically made of rubber or a rubber-like material, and it is placed between the ink rollers and the plate. The belt is designed to have a slightly porous surface, which allows it to absorb a small amount of ink from the rollers. As the belt passes over the plate, it transfers the ink to the plate’s surface, which is then transferred to the paper or other material being printed on. The belt is usually cleaned after each print run to remove any excess ink, and it is also replaced periodically to ensure consistent ink transfer and to prevent any damage to the press.