| 摘要 |
A vacuum platen (10) for media sheets (28), having a sheet support wall (14) formed with a plurality of perforations (18), and a number of chambers (22) formed on a bottom side of the sheet support wall (14), wherein each of each chambers (22) is directly connected to a vacuum source (24),
wherein each chamber (22) contains an acoustic barrier member (30) arranged to divide the chamber (22) into at least two sub-chambers (22a, 22b) such that the sub-chambers are in fluid communication with one another and have overlapping contours when seen in a direction normal to the plane of the sheet support wall (14). |
