A family of Microsoft relational database management systems designed for ease of use.
Something changed in your environment in March. New version of Access, new printer or printer driver, new location of the default printer. Something.
Start by seeing if you can reassign the Default printer for one of your reports to the specific printer you desire to use.
Also make sure it's assigned as your default in the Windows OS.
It has been reported that checking this option can give rise to the problem you now see. Validate that as well.