Dear customer,
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Sorry for the problem you meet.
pls create a support ticket on our website:
https://www.geeetech.com/index.php?main_page=ticket
Our technical support will reply to you directly.
The machine code may be at the side of the printer, like MIZA0BMB130033. Â
If you do not find/ know the machine code, it does not matter, writing any 14 codes is fine.Â
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Best regards