HP Officejet 4630 prints test page but not pdf file.

My brother has an HP Officejet 4630 which describes itself as a wireless
printer and maybe a web-based printer, but doesn't use the word wi-fi.

He can't print.

His computer was slow or errratic and some "repairman" said he needed to
upgrade to win10. He paid $130 and when he got the computer back it
worked worse or not at all, so the guy came over, charged another 130
and he can't print.

He called me and we found out it no longer had Teamviewer, which he
installed, and it no longer had his printer in the list of printers. We
don't know what else is missing.

I installed it, and now the printer is in the list of printers including
when one tries to print, and he can print a test page but he can't print
a pdf file.

Any idea why not?

AFAIK, there is no cable connecting the printer and I didn't install any
wireless features, but if if the pc sees the printer (which it did. I
didn't have to search the list of printers for it. It was the only one
showing, on the first installation screen), if the pc finds the printer
and if I can use the PC to tell the printer to print a test page, how
can it not be sufficiently connected to do everything else (except fax
of course).


He called the "repairman" again and he said he needed a cable and he'd
give him one (not sure if he's delivering it or mailing it) and the
printer is now right next to the laptop, so maybe this will work, but in
a prior apartment, it was in the next room. What if he wants to move it.
Shouldn't the "repairman" install the wireless feature?

Thanks for any help you can give.