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    How to Detect Locked or Unlocked Epson xp600

    The EPSON XP600 printhead is incredibly popular, and anyone running a UV printer will have used them at least once. But if you have EPSON XP600 printheads, when it comes time to replace them, there is something to pay attention to, and that is whether the printhead is locked or not. How to Detect Locked or Unlocked Epson xp600?

    About Locking the Printhead

    Because you can’t buy EPSON XP600 printheads directly from the manufacturer, So those available on the market are removed from Epson printers to be sold separately. Epson would prefer this not to happen, and they changed the EPSON XP600 printhead by adding an encrypted code into the memory board, to prevent it being used in other printers.

    Locked printheads simply do not function effectively any longer, causing print errors of failing to print at all, and this situation led to a lot of printheads being sold on the used market that were effectively unusable.

    About Unlocking the Printhead

    With suppliers having large stocks of these printheads, they decided to simply sell them anyway, causing issues for many printers who suddenly found that the printheads they were buying were not working properly. However, after a couple of months, an enterprising engineer developed a memory card that removed the code and unlocked the printhead, making it usable again. This is where the term ‘unlocked’ came from. These heads are often referred to as ‘first time locked’ heads.
    However, Epson responded again, and with new EPSON XP600 head began building in a new lock, and this one has not been overcome and is often referred to as ‘second time locked’, and that is how we now have the situation where there are both locked and unlocked EPSON XP600 printheads on the market.

    Choosing the right Printhead

    Of course, if there are both locked and unlocked on the market, that means you really need to know how to diffrentiate between them, because buying a locked printhead can be an expensive mistake. The good news is that there is an easy way to see whether any printhead is locked or not, and that is through the connector layout for the print head. That is How to Detect Locked or Unlocked Epson XP600.

    A locked printhead has contacts at each edge as you can see above. The unlocked versions have contacts the middle and then gap, and then contacts at the edge. This makes unlocked printheads easy to spot when purchasing.
    Last edited by Mecan Printers; 08-21-2018 at 03:38 AM.

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