The hardest to diagnose are utilities that browse all of the IP addresses. Sometimes you can get very lucky and just change the IP address, but such...
I also have seen various HVT issues. Before I did that though, I would try checking the driver checkbox "Print Text As Black". That may improve your...
I can't tell you which models, but once they go into an error code the Settings Menu may become inaccessible. And if you replace the printhead while...
I've never seen the official bulletin, but it's no small task. On later production models they installed a new style front cover with holes to access...