Epson DX7 Printhead with 189 and 196 version in locked and unlocked series,too much models,we need you to send the photos of your printhead inside and outside to confirm the right version of it,please contact us for this in case any mistake.

DX7 including the following printer :

EPOSN PRO3890 3880 R3000 DX7 3885 with Code:F196010

Epson B510/B310/B308,with code :F189010