How to do it...

1. Get the printer objects from WMI:

      $Printers = Get-CimInstance -ClassName 
                  Win32_Printer

1. Display the number of printers defined:

      '{0} Printers defined on this system' `
           -f $Printers.Count
  

1. Get the Sales Group printer:

      $Printer = $Printers | 
                  Where-Object Name -eq "SGCP1"

1. Display the printer's details:

      $Printer | Format-Table -AutoSize

1. Print a test page:

      Invoke-CimMethod -InputObject $Printer `
                       -MethodName PrintTestPage