Nowadays there is quite a lot of China-made large format printer using Epson DX7 printhead. However, Epson has started encrypting some of its printheads including DX7. Many users who buy printhead from 3rd party may find their new printhead doesn’t work correctly, usually, prints are with extra lines. That means the printhead is encrypted, thus incompatible with this printer.
We recommend users buy a new DX7 printhead directly from the printer manufacturer so that they won’t need to risk the compatibility issue. Contact Digitalprinthead to let one of our sales experts help you. However, if you prefer to source the printhead by yourself, or you already got a new printhead, this article will clarify an easy method to help you identify the Epson DX7 printhead.
Currently, there are 3 editions of DX7 head: Non-encrypted(it is not available in the market already, but if your printer is an old system with this version, the only available is refurnished type), 1st encrypted, and 2nd encrypted. Simply check the printhead label, see the bottom line with 3 letters.
If the first letter is E/F, it’s Non-encrypted.
If the first letter is G/H, it’s 1st-encrypted.
If the first letter is J, it’s 2nd-encrypted.