communication error with printer

[Katefull]

HP OJ Pro 6978. Installed brand new HP cartridges and got the communication error.  Tried steps suggested and no help.

[Nal_NR]

Hi @Katefull,

Welcome to the HP Support Community. I'd be happy to assist you. Let us try these steps to resolve this issue:

Reset the printer

1. With the printer turned on, disconnect the power cord from the rear of the printer.
2. Wait at least 60 seconds.
3. Reconnect the power cord to the rear of the printer.
4. Turn ON the printer, if it does not automatically turn on.
5. Wait until the printer is idle and silent before you proceed.

Note: HP recommends connecting the printer directly to a wall outlet rather than a surge protector or a power strip.

Update the printer firmware

Click here to download and install the latest firmware from your computer.

You may also refer to this document for further assistance. 

Hope this helps! Keep me posted for further assistance

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

[Katefull · Accepted solution]

Was only able to resolve by installing brand new cartridges to replace the other brand new cartridges that caused to communication error.  Will be returning the faulty cartridges to place of purchase and they can deal with HP.  Everything is good for now!

[Nal_NR]

Hi @Katefull,

I am happy to know that the issue has been resolved.  

I also appreciate your time and patience.

Feel free to ask your queries in the future

It was a pleasure assisting you. You have a good day ahead