German third-party ink manufacturer OCP has announced the availability of inks for Epson Expression Premium all-in-one inkjet models that use the T26 and T33 series of cartridges. Epson’s Expression Premium XP-510, XP-520, XP-600, XP-605, XP-610, XP-615, XP-620, XP-625, XP-700, XP-710, XP-720, XP-800, XP-810, and XP-820 use the T26 set of cartridges, while the T33 cartridge
