Quick Workaround* Download Adobe Acrobat Reader DC (free, Pro is the upgrade). In the print dialog, select "Advanced" at the top next to your selected printer. 2/3 of the way down the pop-up dialog window, find "Print as Image." This will "flatten" the PDF and print it as seen. It seems either the driver or the way Preview processes PDFs when sending to the printer doesn't do a good job of "flattening" the content on a PDF page into a printable image and it omits anything generated from a document processor or that was annotated or added after.

Same issue here. Since having my wife working from home during the pandemic, I've networked our printer so she can print/scan to and from her PC Lenovo laptop. I'm on an Early 2013 MacBook Pro 13" Retina. I've constantly discovered pages from my Canon MF4700 with some text, if any, and large empty swathes of paper where text should be. I'm very frequently needing to export PDFs into JPEGs to "flatten" the PDF, of what seems to be layered or added text to PDFs that were generated in document processing software. I tried the steps that someone else has posted more than once here about "resetting...," and that didn't fix it. The Canon MF4700 is not an AirPrint compatible printer, but it does have networking capabilities. I have it attached to a network extender on our network. I am able to scan from the printer to each of our computers, and print from our phones and computers - but, only on Apple products am I having this issue. This is very frustrating. Maybe it's the Preview app, not flattening the document image when sending it to the printer? My wife, on her PC, is not having this issue at all.