Printer busy black ink keeps flashing even with new cartridge installed

[mpivanovsky]

Back ink sensor flashes continuously even after replacing with new ink cartridge.  Try to clean printer heads with tool but replies printer is busy, unable to clean printer heads. 

[A_Gayathri]

Hi @mpivanovsky,

Welcome to The HP Support Community.  

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

I understand your HP DeskJet 2540 might be having trouble recognizing the new black ink cartridge or there could be an issue with the printer's internal sensors. 

Here are a few steps you can try to resolve the issue:
 

• Check Cartridge Installation: Make sure the new black ink cartridge is properly installed. Remove it and reinstall it to ensure it’s seated correctly.
• Clean Cartridge Contacts: Sometimes, dirty contacts can cause issues. Gently clean the contacts on both the cartridge and inside the printer using a soft, lint-free cloth.
• Reset the Printer: Try resetting the printer. Turn it off, unplug it from the power source, wait for about a minute, then plug it back in and turn it on.
• Update or Reinstall Printer Software: Make sure you have the latest drivers and software installed for your printer. Sometimes, outdated software can cause issues. You can download the latest drivers from the HP website.
• Run HP Print and Scan Doctor: For macOS, you can use HP Smart or HP Print and Scan Doctor if available. This tool can help diagnose and fix common printing issues.  HP Print and Scan Doctor
• Check for Paper Jams: Even though the error seems related to the ink cartridge, it’s a good idea to check for any paper jams or obstructions that might be causing the printer to be busy.
• Perform a Hard Reset: If the issue persists, try performing a hard reset. Turn off the printer, disconnect all cables, and then reconnect them after a few minutes. This can sometimes resolve persistent issues.

Refer to this document: HP Deskjet 2540 All-in-One Printer series User manual 

Fixing a Paper Jam for the HP Deskjet 1510, 2540, Deskjet Ink Advantage 1510, and 2540 All-in-One Pr... 
HP DeskJet 2540 Printers - Attention Light Blinks (Paper Jam) 
HP Deskjet 2540, Ink Advantage 2545 Printers - Blinking Lights 
 

I hope this helps. 

Take care and have a good day.

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