What are the indications that the print head itself needs replacement due to Canon G3020 error 5200?

If error 5200 persists despite checking and refilling ink levels, performing multiple power cycles, and running print head cleaning cycles, it strongly suggests the print head is the root cause. This could be due to an internal short circuit, a failed thermal sensor within the print head, or irreversible damage from overheating. Prior poor print quality might also be a preceding sign.