Doctor blade for inking recesses in cylinder of rotary printer

摘要

Beneath the doctor blade (2) is a first and second ink duct (5,6) each with an ink pump (7,8). The first ink duct (5) is connected on the pressure side to the ink-chamber (4) of the doctor blade; the other pump (8) pumps ink from the second into the first ink duct and has a pipe (10,11) on its pressure-side connection connected to the first ink duct. A riser pipe (9,10) each leading from the pressure-side connection to the doctor blade is positioned on the ink pumps. The doctor blade has a pipe system (11) leading from the riser pipe of the second ink duct's pump to the area of the first ink duct.