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- HP Community
- Printers
- Printing Errors or Lights & Stuck Print Jobs
- HP smart tank 581 e7 error even ink tanks are full.

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06-08-2025 04:06 PM
@Manas_2002, Welcome to HP Support Community,
Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue
The E7 error on your HP Smart Tank 581 All-in-One printer is typically an indicator of low ink. However, if your ink tanks are already full, the error may be due to other factors such as ink sensor issues or incorrect sensor readings. Here are some steps to troubleshoot and resolve the E7 error:
Steps to Fix the E7 Error:
Check Ink Tank Levels:
- Verify that the ink levels in the tanks are actually full. Sometimes the error might be caused by incorrect readings.
Reset the Printer:
- Turn off the printer and unplug it from the power source.
- Wait for about 60 seconds.
- Plug the printer back in and turn it on.
Clean the Ink Sensor:
- Sometimes, the ink sensor might be dirty or blocked. Open the ink tank covers and inspect the sensors. Gently clean any ink residue or dust with a lint-free cloth.
Update Printer Firmware:
- Ensure that your printer firmware is up to date. You can check for firmware updates via the HP Smart app or the HP support website.
Perform a Test Print:
- After checking the ink levels and cleaning the sensor, perform a test print to see if the error persists.
Re-seat Ink Cartridges:
- If your model includes ink cartridges, ensure they are correctly seated in their slots.
Reference: HP Smart Tank Printers - Blinking lights and error codes | HP® Support
I hope this helps.
Please feel free to reply here if you have any questions or if you need further clarification on any of the steps.
Take care and have a good day.
Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!
Regards,
Garp_Senchau
I am an HP Employee
06-11-2025 06:47 AM
Hey @Manas_2002,
Thank you for your response
Kindly check the following:
Error E7
One or more ink tanks are out of ink.
Open the front door and ink tank cap.
Open the ink bottle, place it upside down on the tank, and click into place.
Wait for the ink to fill the tank.
Close the bottle cap, tank cap, and the front door.
I hope this helps.
Please feel free to reply here if you have any questions or if you need further clarification on any of the steps.
Take care and have a good day.
Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!
Regards,
Garp_Senchau
I am an HP Employee