Unable to connect printer in Big Sur

My Canon Pixma ip2850 was working correctly with Big Sur until I shared it with another Mac. Now the printer seems to be associated with the name of the other computer but is not recognised any more by my Mac. I have completely reset the printing to remove all existing printers but the name of my printer no longer appears when I try to add it after the reset. The name of the printer is now associated with the identity of the other Mac- and I can add that new printer name on my Mac provided the other Mac is on-line but it is not found when I try to print to it. The other Mac can print to my Canon if it is plugged in directly via USB. How can I completely de-install the printer on my Mac to eliminate the association with the other Mac and then re-install it?

Note: I also have a Canon scanner and that is recognised and installed correctly.