Lifting inker unit comprises duct roller, inker roller and lifting roller, with gears

摘要

Ink is transferred from the duct roller (1) to the inker roller (2) between the duct roller and inker roller by means of a to-and-fro moving (3) lifting roller. A gear is coupled with the duct roller, and a gear is coupled with the inker roller. Before being in surface contact with the duct and inker rollers, the lifting roller is at least temporarily coupled with the gear. The surface speed of the duct roller or inker roller is equated with a desirable speed ratio.