Solution: Uninstall the HP All-in-One software, and then reboot your computer. Temporarily disable anti-virus or anti-spyware applications, and then reinstall the HP All-in-One software. You can re-enable your anti-virus or anti-spyware applications after installation is complete. If you see firewall pop-up messages, you must always accept or allow the pop-up messages.

If the screen still appears, try uninstalling the HP All-in-One software, rebooting your computer, and temporarily disabling your firewall before reinstalling the HP All-in-One software. You can re-enable your firewall application after installation is complete. If you still see firewall pop-up messages, you must always accept or allow the pop-up messages.

For more information, see the documentation provided with the firewall software.

Cause: A Virtual Private Network (VPN) is preventing the HP All-in-One from accessing your computer.

Solution: Temporarily disable the VPN before proceeding with the installation.

NOTE: The HP All-in-One functionality will be limited during VPN sessions.

Cause: The HP All-in-One is not turned on.

Solution: Turn on the HP All-in-One.

Troubleshooting and support

Clear paper jams

If the HP All-in-One has a paper jam, first check the rear door.

If the jammed paper is not in the rear rollers, check the front door.

To clear a paper jam from the rear door

1.Press in the tab on the left side of the rear door to release the door. Remove the door by pulling it away from the HP All-in-One.

2.Gently pull the paper out of the rollers.

CAUTION: If the paper tears when you are removing it from the rollers, check the rollers and wheels for torn pieces of paper that might be remaining inside the device. If you do not remove all the pieces of paper from the HP All-in-One, more paper jams are likely to occur.

3.Replace the rear door. Gently push the door forward until it snaps into place.

4.Press Start Copy Black or Start Copy Color to continue the current job.

To clear a paper jam from the front door

1.If necessary, pull the input tray down to open it. Then, lower the print cartridge door.

Clear paper jams

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HP C4385, C4380, C4390 Clear paper jams, To clear a paper jam from the rear door, To clear a paper jam from the front door