Abstract: The invention relates to an end sealing system for. a scraper chamber (6) of an impression machine or a machine depositing a viscous or liquid fluid on a surface, the chamber cooperating with a screen transfer cylinder (1) and being laterally closed by longitudinal scrapers (2). The system includes a mounting frame (3) housed at the end of the scraper chamber (6), an elongated seal (4) made of an elastically deforming alveolar material cooperating at its ends with the mounting frame (3), and a rigid second seal (5) mounted on the elongated seal (4) between the latter's ends, and being guided in the mounting frame (3). The ends of the elongated seal (4) rest under the ends of the scraper (2) on the side opposite the screen transfer cylinder (1).