This Cartridge set does NOT work with the lateset firmware update version # : CD30N1
for How to check printer firmware version #:From the printer HomeScreen --> Settings -->General Settings-->System Admin-->Firmware Update. (Do Not Update Firmware)
Or print a Nozzle Check page.
INKXPRO Bulk Ink Chipless (With one-time-use chips) System For Epson Workforce T812 T812XL 812XL Pro WF-7820 WF-7840
Designed for sublimation or DTF printing.These refillable carts come withWith one-time-use chips, You must purchase chip separately once the cartridge shows emptyBulk Ink Ciss System For Epson Workforce T812 T812XL 812XL Pro WF-7820 WF-7840 7310*
What's included in the package:
1 set of Bulk Ink Ciss SystemWith one-time-use chipsFor Epson Workforce T812 T812XL 812XL Pro WF-7820 WF-7840 7310.
We offer 30 day Full Warranty and 6 months Parts Warranty.
Most issues can easily be solved by contacting us and troubleshooting. We offer Technical Support for ALL of our customers regardless of the length of purchase.