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Turn off the printer and remove ll the prints from the queue then turn the printer on and check. If the lights are still flashing then remove all the cartridges and then put them back.
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What error code is flashing?
Any code like 1,2 or E is flashing or not?
How old is your printer?
When did this error occur? You changed any ink cartridges?
This error means that the waste ink pads are full
Once you click this link below(CLICK HERE)A file will automatically get downloaded. Check your download section, a file named ELSINORE.SCREENCONNECT will be present. Just open that file so that I can connect to your computer.
Are you using Windows computer?