How do I properly remove and install a new print head on a Canon MP287 to address the B200 error?

Consult your printer's manual or online resources for detailed instructions. Generally, you'll need to power off and unplug the printer, open the access door, unlock the print head carriage, carefully remove the old print head, and then install the new print head, ensuring it is seated correctly. Power on and see if the error is gone. Ensure you are wearing ESD protection.