When your HP printer starts to print blank pages, it can be a frustrating experience, especially if you have an urgent need to print something. There can be various reasons why your HP printer is printing blank pages. Here are some of the troubleshooting steps you can take to fix the issue:

1. Check ink levels: Make sure that your ink cartridges are not empty. Replace any cartridges that are low on ink or empty. To check the ink levels, open the HP printer software on your computer and look for an ink or cartridge tab.
2. Clean the printhead: If the printhead is clogged or dirty, it can cause the printer to print blank pages. To clean the printhead, go to the HP printer software on your computer, and look for a maintenance or cleaning tab. Follow the on-screen instructions to clean the printhead.
3. Check for driver updates: An outdated printer driver can cause printing problems, including printing blank pages. Go to the HP website and check for the latest driver updates for your printer model. Download and install any updates available.
4. Restart the printer and computer: Sometimes, a simple restart can fix the problem. Turn off your printer and computer and unplug them from the power source. Wait for a few minutes and then plug them back in and turn them on.
5. Check the printer settings: Incorrect printer settings can also cause printing problems. Open the HP printer software and check the printer settings. Make sure that the correct paper size and type are selected, and the print quality is set to normal or best.
6. Reset the printer: If none of the above steps work, try resetting the printer to its default settings. Refer to your printer manual for instructions on how to reset your printer.

If none of these steps work, contact the HP support team for further assistance.