...
If USPS payslips are configured in ESS, employees will have the ability to query a payslip by pay date or check number. Once a specific payslip is queried, you have the option to download 
a PDF version of it or open (view) 
it in PDF format. Viewing a payslip will open it in another tab that you can exit out of once you are finished viewing it.
...
.
...
...
More Information on View/Print Payslip
...