After changing black ink cartridge unable to print,

[K2moo]

Hp Envy 6455e

After changing  black ink cartridge  Error Message E, O

With yellow  flashing  light on right  corner of machine. Trouble shooted   as instructed .

Did  not  print .

continues  to  flash yellow  corner . Red X

[A_Gayathri]

Hi @K2moo ,

Welcome to The HP Support Community.  

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

I understand you're encountering an error message and having trouble printing after changing the black ink cartridge on your HP ENVY 6455e printer. The error message "E, O" along with a flashing yellow light indicates that there might be an issue with the ink cartridge installation or recognition.

Here are some steps you can try to troubleshoot the issue:

• Check Ink Cartridge Installation: Make sure that the black ink cartridge is securely installed in the printer. Sometimes, cartridges may not be inserted properly, leading to recognition errors.
• Clean Cartridge Contacts: Remove the black ink cartridge and gently wipe the contacts on both the cartridge and the printer with a clean, lint-free cloth. Sometimes, dust or debris can accumulate on the contacts, causing connectivity issues.
• Reset Printer: Turn off the printer, unplug it from the power source, and wait for a few minutes. Then, plug it back in and turn it on. This can sometimes reset the printer and resolve minor issues.
• Check for Firmware Updates: Ensure that your printer has the latest firmware installed. Sometimes, firmware updates can fix compatibility issues with ink cartridges.
• Use Genuine HP Cartridges: Ensure that you're using genuine HP ink cartridges. Third-party or refilled cartridges may not be recognized by the printer, leading to errors.

Refer to this document: HP ENVY 6455e All-in-One Printer User Manual

HP DeskJet, ENVY 6000, 6400 - Blinking lights and error codes

I hope this helps. 

Take care and have a good day.

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