looks like both are overspraying, just one not as bad as the other.
bad printhead, looks just like the past 3 I replaced after nearly 10yrs of use. Printheads typically crap out after xxbillion fires or so. If you've put some heavy miles on it, its more than likely not worth sweating about and to just invest the cash to fix it up right.
limping on overspraying heads is a pita. I've done it quite a few times and always end up wasting material and late-hours at work trying to dial-in a setting that makes it work "good enough".