PSF Interface

The PSF interface is used to let PSF perform the actual printing.

The commands are the same as for other printers with the exception of PFSS, which stops a PSF address space.

The following commands are used to display the status of the PSF interface:

DS, FSS—Display active Functional Subsystem address spaces.
DS, FSA—Display active Functional Subsystem Applications and Functional Subsystem address spaces.