This model of solvent resistant Epson printhead is suitable for certain solvent based Chinese DX7 printers manufactured after 2014. This printhead has 8 channels and 180 nozzles per channel. It has a 3,5 picoliter drop size with Variable-Sized Droplet technology. 

This printhead is the DX7 head model released by Epson after 2014 (2nd coded). It is encrypted and it is compatible with new printhead control boards installed on printers after the end of 2013. This head ID starts with I, J or K. It is important to check if the old printhead is 2nd coded before any new head installation and the head ID alone cannot determine the head type.