Lexmark C762 - Manual (Page 205)

PostScript
4-28
jobsource
— jobsource (string)
indicates the current value of the CurInputDevice system parameter. A string is
returned on the stack indicating the job source. Valid values are:
%LocalTalk%
%SerialA%
%SerialB%
%SerialC%
%SerialD%
%ParallelA%
%ParallelB%
%ParallelC%
%ParallelD%
%IR_A%
%IR_B%
%IR_C%
%IR_D%
%USB_A%
%USB_B%
%USB_C%
%USB_D%
%EtherTalkB%
%EtherTalkC%
%EtherTalkD%
%TokenTalkB%
%TokenTalkC%
%TokenTalkD%
%LexLinkB%
%LexLinkC%
%LexLinkD%
%PrintServerB%
%PrintServerC%
%PrintServerD%
%RemotePrinterB%
%RemotePrinterC%
%RemotePrinterD%
%AppSocketB%
%AppSocketC%
%AppSocketD%