Turn power off on the printer and also take the Ethernet cable (providing this is a network printer) out as well for about one minute also go to
The usual path to the spool folder is
C:\\WINDOWS\\system32\\spool\\PRINTERS, but yours may be slightly different and delete all that is their.
also stop printer spooler on both machines and then run them again then refresh the services page and make sure their still running then trying printing test page on pc its connected to then on other pc problems is still their reinstalled the drives and reshare the printer.
Also checkout Print Spooler Service Keeps Failing