Printer showing red light which is blinking continuous

[Delawala]

Red light blinking continuously 

May be showing color refill problem which is not actually the reason bcoz it's full to 70 ml

[KrazyToad]

@Delawala

I have gone through your Post and would like to help

Please perform a Printer Reset and also ensure the Printer has the latest firmware

- With the printer turned on, disconnect the power cord from the rear of the printer and from the wall outlet or power strip.
- Wait at least 60 seconds.
- Plug the power cord back into the wall outlet.
NOTE: HP recommends connecting the printer power cord directly to a wall outlet.
- Reconnect the power cord to the rear of the printer.
- Turn on the printer, if it does not automatically turn on.
- The printer might go through a warm-up period. The printer lights might flash, and the carriage might move.
- Wait until the warm-up period finishes and your printer is idle and silent before you proceed.
 

You can refer to this Link: https://support.hp.com/in-en/document/c02919168 for Firmware update

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