They sent me the RXV inks for my Roland printer. It say's that they are compatible with Roland printers.
Right but OEM EcoSol Max 2 doesn't work/register in an older Roland printer that uses EcoSol Max inks. Different chips on the carts, firmware, heads in the printer, chemistry, etc...
I just looked on Fellers website and found this...
Designed for Roland XR-640™, XF-640™, RF-640 VERSA EXPRESS™ & VERSA CAMM VSI™ Printers
• Color compatible with OEM ECO-SOL MAX 2 inks
• Chemically compatible with OEM ECO-SOL MAX 2 inks