Hi @arlethie,
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I grasp that you accidentally installed an incorrect ink cartridge into your Officejet 4630. You have removed that cartridge and installed the correct one, but the error message remains.
With the printer turned on remove the power cord from the electrical outlet and the printer. Wait 30 seconds and connect the power cord to the back of the printer and then the electrical outlet.
Please try this and let me know the outcome.
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