E0 on printer

[angela262]

Hp printer 4222e. Replaced ink and now showing E0 as a fault

[Kuroi_Kenshi]

Hi @angela262,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

I understand your HP Laser 4222e printer is showing an E0 error after replacing the ink cartridges. Let’s go through some steps to resolve this.

Power Cycle the Printer

Turn off the printer and unplug it from the power source.

Wait 30–60 seconds, then plug it back in and turn it on.

Check Cartridge Installation

Open the ink cartridge access door.

Remove the cartridges and reinsert them firmly until they click into place.

Make sure protective tape is removed from the cartridge nozzles.

Verify Cartridge Compatibility

Ensure you are using genuine HP 4222e cartridges.

Third-party or refilled cartridges can sometimes trigger error codes like E0.

Clean Cartridge Contacts

Power off the printer and remove the cartridges.

Gently clean the gold contacts on the cartridges and inside the printer using a lint-free cloth lightly moistened with water.

Let them dry completely before reinserting.

Reset the Printer

With the printer powered on, press and hold the Cancel button for 10–15 seconds.

Some models may also have a resume button you can hold to reset error codes.

Check for Firmware Updates

Connect the printer to the computer or HP Smart app.

Check for any available firmware updates and install them.

Test Printing

After performing the above steps, try printing a test page.

If the error persists, remove the cartridges and reinsert them in a different order, then retry.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨

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Best regards,