Roland VP-540/VS-640/RS-640 ink endless/permanent chip

Endless/Permanent chip applicable for Roland VP-300/540/VS-640/540/300 RS-640 refill ink cartridge. 1. Permanent chip for long term use; 2. Suitable for Roland ECO SOL MAX INK; 3.Auto reset; 4. Color: C/M/Y/K/LC/LM;