My HP Deskjet 2700 is printing blank pages. What could be causing this?

Blank pages usually indicate an ink delivery problem. First, check ink levels. If ink is present, run the 'Clean Printhead' utility in the HP Smart app. A clogged printhead is the most common cause. If cleaning doesn't help, the printhead itself might be damaged and require replacement (though this is less common). Ensure you're using the correct paper type, as some papers don't absorb ink well.