Some PDFs print lines using HP Laserjet and some do not?

Hi Markj,

Could you please try following troubleshooting steps:

1- Apply redaction to the pdf file using the steps given in this link and try printing again: Removing sensitive content from PDFs in Adobe Acrobat DC

2- If that doesn't work, flatten the pdf file using Preflight tool in Acrobat and print pdf as image, please refer to the steps given in these links for more info on: How to 'Flatten' in Adobe Acrobat Pro DC and how to Print PDF as image | Adobe Acrobat, Reader

Thanks,

Shivam

This looks like a printer cleaning problem. I have, however, met this problem before.

There the person could print fine on his iOS device, but could not print on his Mac on the same device. At the end, it was a driver problem. Using AirPrint solved it.

You could look here for more information on troubleshooting printer problems on your Apple device: If you can't print from your Mac or iOS device - Apple Support