Duplex printing is locked

[JadNair]

How do I unlock it? OS is win 10 64 bit, I'm connected via wi-fi

[Jeet_singh]

@JadNair,

Thank you for posting your query on HP Community,

Are you able to make duplex copying from the printer? If so then this could be an issue with the settings. 

Let's try these steps here: 

• Go to Control panel – Devices and printer.
• Right-click on HP Envy 5540 Printer series and select “Printer properties”.
• Select the “Device settings” tab.
• Ensure that the “Duplex unit” is set to “Installed” rather than “Not installed” and save the settings.
• Now again give a right-click on the printer icon and select “Printing preferences”.
• If a "Printing shortcuts" tab is available, select the "Print on Both Sides" or "Two-sided (Duplex) Printing" option.
• If “Printing shortcut” is not available, click the “Layout”, “Features”, or “Finishing tab”, depending on which tab displays in your driver version.
• Locate the "Print on Both Sides" or "Two-sided printing" menu or option, then select the binding or page flip option depending on if you want the document to read like a booklet or a tablet and save the settings.

If the settings are correct and still having the issue. I would suggest the next option would be to uninstall the printer from the root level and then reinstall it by following the steps below: 

• Press “Windows key” + “r” to get the “Run” window.
• Type "services.msc" to get Services – Go to “Print spooler” – Right-click and “Stop” the service.
• Now again open "Run" - Type “spool” and ok - Go to PRINTERS folder - delete everything in that folder.
• Go to services again - Start the print spooler.
• Now check for issue resolution.
• If the issue persists, also try clean installing the printer drivers. Here are the steps:
• First, unplug the USB cable from the printer if present.
• Go to Control panel – Programs and feature – Select all the HP Envy printer entries and uninstall them.
• Now go to Control panel – Devices and printer – Select all the printer entries and remove the device.
• Press the "windows key" + "r" to get the "Run" window open - Type "printui.exe /s" (There is a space between .exe & /) and press enter.
• Under print server properties, go to drivers - remove any entry there as well.
• Again, go to the Run window, type – “c:/programdata” – Go to Hewlett Packard folder, remove any printer related folders & files.
• Restart your computer.
• Please click here to download and install the software.
• Connect the USB cable if prompted and follow the on-screen instructions to complete the installation.

Those steps should do the trick, let me know the outcome!

That said, 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!