Technical data

1.2.1.1 End-User Interface
The CLI accesses all print, list, and job removal programs that end users
access. In addition to the CLI, end users can use the pdprint and
pdprintinfo GUI interfaces to perform these functions. The installation
procedure integrates the pdprint and pdprintinfo GUIs into the CDE
desktop, making them the default print and print information actions.
1.2.1.2 Administrative Interfaces
All system functions are accessable to print administrators through the CLI,
and many of the same functions can be performed using the pdprintadmin
GUI.
1.2.2 Server Programs
Advacned Printing Software includes three primary server programs that
provide the bulk of the print system capabilities:
• Spooler (pdsplr)
• Supervisor (pdspvr)
• LPD Outbound Gateway Supervisor (pdspvlpr)
These server programs are multithreaded applications, capable
of simultaneously handling many printers, jobs, and requests. In
small-to-medium-sized installations, you might need only one spooler
process and one supervisor process. Larger installations (more than 50
printers) will need to run more than one supervisor process. If you need to
support printing from the print system to existing lpr or lpd systems or
printers, you will need to configure the LPD Outbound Gateway Supervisor.
1.2.2.1 Spooler
The spooler, pdsplr, is a central component in the print system. It performs
the following functions:
• Collects print jobs in queues
• Applies initial-value attributes to job and documents
• Schedules print jobs for printing based on job requirements and printer
capabilities
• Transfers jobs to supervisors when printers are ready to print
• Makes status available to clients
• Notifies users and administrators when significant events occur
1–8 Advanced Printing Software Overview