I understand you need to perform a region reset on the printer. These details are not supposed to be shared on a public post for security reasons.
To which country would you like to reset the printer?
What number ink cartridges are you trying to use?
Kindly resend the information in a private message with tricolor ink cartridge details.
I've sent you a private message. In order to access your private messages, click the private message icon on the upper right corner of your HP Forums profile, next to your profile Name or simply click on this link.
Hope this helps! Keep me posted.
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