E! Error Code

[KJM68]

I just changed the ink cartridges and all of a sudden I see a flashing red light and EO! error message on the display. I have removed and reinstalled the ink cartridges several times and rebooted, but it’s still happening.

Can someone help me fix this?

[VikramTheGreat]

Hi @KJM68,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

I know how frustrating it is to see a flashing red light and E0 error right after replacing ink cartridges, especially when you've already tried reseating them and rebooting. You're not alone, and HP has shared clear steps to help resolve this.

1. Check Cartridge Compatibility

Make sure you're using genuine HP cartridges that match your printer model. For example, if you're enrolled in HP Instant Ink, only Instant Ink cartridges will work.

2. Remove Protective Tape

Ensure all orange or blue protective tape on the cartridge nozzles and contacts has been removed.

3. Clean Cartridge Contacts

• Power off the printer.
• Remove the cartridges.
• Use a lint-free cloth slightly dampened with distilled water to gently clean the copper-colored contacts on both the cartridge and inside the printer.
• Let them dry for 5 minutes before reinserting.

4. Reset the Printer

• Turn off the printer.
• Unplug it from the power source for 60 seconds.
• Plug it back in and power it on.

5. Update Firmware

Visit Official HP® Support and enter your printer model to check for firmware updates. This can resolve recognition issues.

6. Try the Original Cartridge

If the error persists, try reinserting the original cartridge (if available). If the error disappears, the new cartridge may be defective or incompatible

I hope this helps.

Take care and have an amazing day!
 

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Regards,

VikramTheGreat