The Epson C13T295000 WorkForce WF-100W Series Maintenance Box collects ink flushed from the printer system during print-head cleaning. It is a replacement consumable for the printer’s ink maintenance system.
Epson identifies this part as C13T295000; the WF-100 user guide refers to the maintenance box as T2950. Replace the box when it reaches the end of its service life, as indicated by the printer.
Epson lists compatibility with WorkForce WF-100W and WF-110W printers.