Epson T52L Inks are compatible with the Epson ColorWorks C4000 Series Label Printers.
Epson printers are designed exclusively for Epson ink cartridges, no other brands.
Matte Black and Gloss Black are exclusively designed for either the Matte or Gloss CW-C4000 Label Printer.
For more information on ink yields, visit www.epson.com/inkinfo