@CarolW, Welcome to the HP Support Community!
I understand the printer is printing blank pages. According to the information you provided, this seems like a hardware issue. Reinstalling the printer driver will not help.
Try making a standalone copy in black and color to check if that prints fine. By this, we can conclude if this is a hardware or a driver issue.
Clean the ink cartridges up to 2 times and print a print quality report as shown in this document - No black ink, wrong colors, other print quality issues
You may insert one ink cartridge at a time and try printing/copying to identify the defective ink cartridge.
Hope this helps! Keep me posted.
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KUMAR0307
I am an HP Employee