https://www.bleepingcomputer.com/news/microsoft/windows-10-1903-kb4522016-cumulative-update-breaks-printing/

Microsoft acknowledged a new issue leading to intermittent issues when printing or completely breaking the printing capabilities of Windows devices after installing cumulative updates issued during late September.

"The print spooler service may intermittently have issues completing a print job and may result in a print job being canceled or failing," says Microsoft in the known issue's description on the Windows Release Health Dashboard.