HP 7720 has lost the ability to scan and copy using auto duplexing

[Colin_D1]

Recently my printer has lost the ability to auto duplex using the ADF when scanning or copying any documents.

This feature was previously there.  I put it down to a new firmware being automatically pushed to my device.

I've been advised to use manual duplexing, but that's not what came with the device, and being blunt - this was the main reason for purchasing this device, along with the ability to handle A3!

I have reset the printer using 'reset printer defaults' from the web menu.  I have reset using the hidden service menu.  I think the term was semi-full reset.  I have tried the HP Doctor app and have spent the last 4 days interacting with the HP Support WhatsApp.. with no joy!

I have tried using the HP Smart App - with no success.

I have tried using Windows and MacOS to access settings, with no change in results.

Oh, and I am using Original HP cartridges...

I need some help!

[Nal_NR]

Hi @Colin_D1,

Welcome to the HP Support Community. 

I'd be glad to help you! 

That is an excellent description and a great diagnosis. It is greatly appreciated.            

According to the specs on the web, it does not have a duplexing ADF.  However, you can do manual 2-sided scanning with the HP Scan software. It has duplex printing. Click here for the specifications. 

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”.

[Colin_D1]

The machine used to do exactly what you said it can't!

[Nal_NR]

Hi @Colin_D1 ,

We apologize for the inconvenience, but it seems that the issue persists even after attempting the troubleshooting steps mentioned above.

I truly appreciate your time and patience. If you need further assistance, feel free to reach out to us. 

Take care