Deskjet 3720 Clean Smear/Printhead: Communication between the browser and the printer has been lost

[Nezecus]

Hi there!

My Deskjet 3720 doesn't print very well, colors are faint and ink cartridges are ok,

so I was trying to do the Clean Smear or Clean Printhead and this is the result message:

Communication between the browser and the printer has been lost.

To reconnect, make sure:

- The computer and the printer are on the same network.

- The printer's IP address is correct. Open a new browser window, and then enter the printer's IP address.

Tip: To obtain the printer's IP address, print the network configuration page. Also, you might be able to view the IP address from the printer's display. For more information, see the documentation provided with the printer.

The printer connection is ok, it prints ok but as I said colors are faint.

I restarted the Mac but issue still there.

Thanks for the support

Nezecus

[senan6806]

@Nezecus

A warm welcome to HP Support Community!

Resetting the printer network settings and reconnecting the printer to you home WiFi should clear the communication error. Here is how to do it:

1.) On the printer control panel, press and hold the Wireless button  and the Cancel button  at the same time for 5 seconds. (This steps will restore default wireless settings on the printer and enable Auto Wireless connect. Immediately continue to the next step to install the software. You have approximately 120 minutes to complete the software setup using the HP auto wireless connect feature.) 

2.) Download and run HP Easy start from here.

3.) Follow the onscreen instructions to connect the printer to your home wireless network.

Once the printer is connected, try to start the automated cleaning.

Let me know how it goes!

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!
Have a great day!