3-1 8 System GuidePrinting and queue managementContinuous Form.• Tray/Bin Mappings tab – Enables an operator to mapFreeFlow Print Server physical trays to virtual IPDS trays. Thecontents of the virtual IPDS trays are reported back to thehost. The operator can view and modify stock attributes so thatthey meet the needs of the IPDS print jobs to be run.• Operator Commands – Applicable to both the Job Settingsand Tray/Bin Mappings tabs, these commands enable anoperator to Go Online or Go Offline, Stop or Continuereceiving IPDS data from the host, and Cancel an incomingIPDS job.IPDS with AFPIBM’s Advanced Function Presentation (AFP) is a collection ofprograms that can be used to format and manage documentsindependently of printer hardware. It enables users to controlformatting, paper output form, printing or viewing online, anddocument storage across multiple operating system platforms.AFP is implemented on various platforms by Print Service Facility(PSF) software. This software generates the device dependentIPDS. Some IBM systems, such as AIX, use InfoPrint Manager,rather than PSF to accomplish this translation. FreeFlow PrintServer supports IPDS emitted by either PSF or InfoPrint Managersoftware.In order to print IPDS jobs, the host system must transform theprint job data into IPDS raster data and control data consistentwith IBM publication S544-3417 Intelligent Printer Data StreamReference. For host operating systems that support AFP, such asZ/OS (MVS) and OS/400, the host decomposes the AFPcommands into appropriate IPDS commands and data. Somehost systems, from vendors other format.Note that IPDS printers are centrally managed from the hostsystem. Resources, such as fonts, usually reside on the host andare transferred to the printer when needed, rather than beingstored permanently on the printer.