How Can I Repair A Dried Out Printheard Epson O-420?

How Can I Repair A Dried Out Printheard Epson O-420? First, we soak the printhead in cleaning solutions for a few hours. Then, we will use a high-pressure steamer to open up the nozzles and blow away debris. Finally, we will use an ultrasonic cleaner to remove clogging particles and dried ink. How do you