What causes the 'Windows cannot connect to the printer' error 0x00003e3 when related to sharing?

Error 0x00003e3 typically indicates a problem with the printer spooler service, network connectivity, or sharing permissions. Specifically, when related to sharing, it often means the user account attempting to print doesn't have the necessary permissions to access the shared printer on the network, or the File and Printer Sharing service isn't enabled on the host computer.