"--- Początkowa lista zadań wydruku:"
Get-Wmiobject Win32_Printjob -computer E02 -Filter "Drivername='Dell MFP Laser 3115cn PCL6'"

"--- Anulowanie wszystkich zadań wydruku..."
Get-Wmiobject Win32_Printjob -computer E02 -Filter "Drivername='Dell MFP Laser 3115cn PCL6'" | Foreach-Object { $_.Delete() }

"--- Końcowa lista zadań wydruku:"
Get-Wmiobject Win32_Printjob -computer E02 -Filter "Drivername='Dell MFP Laser 3115cn PCL6'"