BillAhearn wrote:
Re-imaged the PC about two weeks ago with no problems.
Today I needed to print a specific PDF downloaded from the accountant.

Installed my old licensed Adobe Acrobat 6.0 Standard on the PC.
Adobe Acrobat 6.0 Standard complains about the version mismatch.
But Adobe Acrobat 6.0 Standard lets me click past that version warning.

I send the PDF to the HP LJ printer since that's all I had wanted anyway.
The printer shows no errors but the actual printed page displays the error.

Error: Your printer driver needs to be configured for printing
to a PostScript Language Level 2 printer.
Select "Language Level 2" in the PostScript options section
of the Acrobat print dialog"

WTF?
It printed that error in big letters on a blank sheet of paper!
(I've never seen a printer error show up on the printed page!)

I download Sumatra PDF which prints the specific PDF fine.
So there is nothing wrong with the PDF itself.

What is going on?

The printer is working.
Sumatra is working.
But Adobe is not working.

What is going on?

https://support.hp.com/ca-en/document/c01820084

"Older HP LaserJet printers support PostScript level-2 commands.

The HP PostScript Universal Print Driver defaults to
PostScript level-3.

While it is possible to change the PostScript Language Level to 2
within the Universal Print Driver printer preferences and properties
(in the Advanced tab), Adobe Acrobat and Adobe Acrobat Reader
is a pass-through application, generating its own PostScript
commands and bypassing the print driver. Thus, the application
would ignore this setting within the driver."

This just could be a side effect of you downloading the UPD,
rather than some older non-UPD based printer driver for the
HP. At a guess. As long as you can convince the program
doing the print, to not print at Level 3, you should be OK.

If not, you'll have to search for an old version of the HP
driver, before UPD was invented.

Paul