I also have a client with a sharp printer that has started to get the invalid printer message in almost all their modules after upgrades were installed. It is a sharp MX 2640N and they are using the PCL6 driver.

It's a fairly expensive printer that fulfills several roles so they do not want to replace it. It has no issues with any other software they use and worked fine in adagio prior to updates.

Job Cost doesn't have the issue but the other modules do, I think it's any module that was upgraded to ODBCV3 that is affected but not 100% sure.

If they select a different printer, the reporting works across the board.

Sharp's most recent driver for the model in question is from 2015 so it is of no help. Making the name of the printer "Sharptest" didn't help. They have a functional V3PDF driver installed and are using the most recent BR hotfix as well.

They can preview by making their default reports printer any other printer. They can even print to the sharp from the preview itself, but if the sharp is the selected printer, then none of the reports will print or preview and they see the invalid printer error.