The only way to recycle EPSON inkjet cartridges is to return them to EPSON. None of the reuse schemes accept EPSON.
Slade Digital Print are part of the EPSON Recycling Scheme and have a large blue box in the Digital Print are to collect them in. All students and staff are welcome to take advantage of this box for EPSON inkjet cartridge recycling.
(But, please do not use the Epson box for any other manufacturer or compatible cartridges as these will end up in landfill.)