I am using a HP officejet 4632. When I am looking at a PDF schematic I zoom in on an area and want to print it like I see it. I can only print the page as normal. Is there a way to print the zoom image?
If you are using a "recent" version of Microsoft Windows, after you zoom the .pdf on the computer-screen, you probably can then use the Windows Snipping Tool to capture the portion you want, save it and print it, or copy-paste it into another document and print it. I am not familiar with the specific printer, but I doubt you can use it to zoom and print as described with just the printer-features.
Depending on the printer driver options, you may or may not have an option (Advanced, Options, Properties...some key tab) that allows you to force the PDF image to fit on one page, or to print it at a specific resolution.
Or, your PDF reader may give you options. Either way, you need to explore.