R1390 Ink Dampers for Epson based DTF, UV, DTG printers. One set (2 dampers) square DTF DTG ink dampers works with many epson based printers. Repair lines in prints , clogged printhead nozzles and restore ink delivery CISS system for your DTF, UV, or DTG printer. We suggest changing ink dampers anytime your Epson R1390 inkjet printhead is changed.