Photoshop CC 2018: Cannot print to HP Samsung printer

When trying to print from Photoshop CC 2018 to a printer (HP Samsung Xpress SL-C480W A4 MFP) nothing happens. The printer dialog is there, you can access normal settings etc, but when you press the "print" button nothing at all happens, no errors, no queues, just nothing. All other applications print fine, including Acrobat Pro and InDesign.

It may be a HP (who now sells Samsung printers) problem, but then I find it peculiar that it only happens to Photoshop. Has anyone got any clues to what the cause is, and ideally, a solution?