Screen printing system and method for cleaning masks of screen printing system

摘要

Disclosed are a screen printing system and a method for cleaning masks of the screen printing system that can sufficiently clean masks used in screen printing of a cavity substrate. The system is provided with: a first cleaning device (16a), wherein a mask-contact region (R) formed from a paper member (42) spanning the upper end of a nozzle unit (41) is caused to sequentially contact the bottom surface of each convex section (13t) of a first mask (13a), eliminating paste (Pst) adhered to the bottom surface of each convex section (13t); and a second cleaning device (16b), wherein a mask-contact region (R) formed from a paper member (42) spanning the upper end of a nozzle unit (41) is caused to contact the bottom surface of a second mask (13b), eliminating paste (Pst) adhered to the bottom surface of the second mask (13b). The first cleaning device (16a) winds the paper member (42) while eliminating the paste (Pst) adhered to the bottom surface of the convex sections (13t) of the first mask (13a).