It sounds like you're facing a frustrating issue with double-sided printing on your HP Envy 6155e. Based on what I found, here are some steps you can try to resolve this:
1. Check Printer Properties on Your Computer
- Open the Control Panel and go to Devices and Printers.
- Right-click on your HP Envy 6155e and select Printer Properties.
- Navigate to the Device Settings tab and ensure that the Duplex Unit or Double-sided Printing option is set to Installed.
- Save the settings and restart your computer.
2. Verify Print Preferences
- Open a document and press Ctrl + P to access the print dialog.
- Select your HP Envy 6155e printer and click on Printer Properties or Preferences.
- Look for a setting like Print on Both Sides or Duplex Printing and enable it.
- Save the settings and try printing again.
3. Update Printer Drivers
- Visit the HP Support website and search for your printer model.
- Download and install the latest full-feature driver for your printer.
- During installation, ensure that duplex printing is enabled.
4. Reset Printer Settings
- Turn off the printer and unplug it from the power source.
- Wait for about 2 minutes, then plug it back in and turn it on.
- Reconnect the printer to your computer and check if the double-sided printing option appears.
5. Test with HP Smart App
- Open the HP Smart app on your computer.
- Check if the double-sided printing option is available within the app. If it works from the app, the issue might be with the printer driver or software settings.
Take care, and have an amazing day!
Regards,
Hawks_Eye