Hi @Sapz, Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
A blinking power light on your HP DeskJet 1212 printer usually indicates an error that needs attention. Here are some troubleshooting steps you can follow:
Restart the Printer
- Unplug the printer while it's still turned on.
- Wait at least 60 seconds.
- Plug it back in and turn it on.
Check the Paper and Cartridge
- Open the paper tray and make sure there is no paper jam.
- If there is a jam, carefully remove the paper.
- Ensure that the ink cartridges are installed properly.
- If the ink levels are low, try replacing the cartridges.
Please follow this document and try the subsequent steps - HP DeskJet 1110, 1200 Printers - Power Button Light Error Conditions | HP® Support
I hope this helps.
Take care and have a good day.
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Max3Aj
HP Support