Out of nowhere, about 1/3 of the Orange & LLK nozzles aren't printing anymore.
Ran a bunch of cleaning cycles with test prints between. Even power cleaning, service mode CL4, and yes after being ready to give up, even a service mode SSCL.
Cleaned wiper. Ammonia-free Windex on paper towel. Got nowhere. (Actually got slightly worse, but then cleared back up to where it started.)
I'm not printing a lot anymore, so it's probably time for me to move on anyway. Most prints have been test patterns to prevent a clog, for the few customers that once and a while need something.
Not considering replacing the printhead. With how little real usage it gets, it's just too expensive. And, it wouldn't be worth doing to then sell the unit because I'd get about as much from it as the printhead costs - and that's if it fixed the problem.
I'm tempted to remove the printhead and run piezoflush through it in reverse, sucking it out with a syringe, just in case it actually is a clog.
Everyone else thinking electronic head failure? Could it be something else? I haven't seen the dampers. Not sure if it could be something less expensive like that. Can't find what nozzle check pattern indicates dampers needing to be replaced.