Technical data

The notification server distributes notification messages issued by spoolers
and supervisors. It is responsible for sending e-mail or displaying messages
on the GUI message areas when significant events occur. The console
notification daemon,
pdconntf, is required when you want notification
messages to appear in the CDE system console window.
Only one copy of each of these daemons runs on a host at a time. The
protoserver daemon and the notification server daemon run automatically,
under control of the inetd program.
1.2.4 Printer Attribute Files
Advanced Printing Software supports many printer models. For each
supported printer model, the software includes a printer attribute file. Each
file specifies a set of attributes that describe and pertain to the capabilities
of the respective printer model, without options. Use printer attribute files
to install newly supported printers in your print system. The files have
names that make it easy to identify the printer manufacturer and model
to which they apply.
1.2.5 Translation and Modification Filters
The supervisor can translate or modify the document data stream while
passing it to the output device. Administrators can set up one or more
translation filters to automatically translate documents of one format to a
different format that is compatible with a target printer. Users can specify
modification filters while printing a document. Such a filter might be used to
add line and page numbers, remove unwanted sections of a document, or to
change the code set of the document to conform to a printer’s requirements.
You can configure most programs that take their input from stdin and
sends output to stdout, including most standard UNIX utilities, as a
translation or modification filter. You can also develop and configure your
own filter programs.
Advanced Primting Software includes a translation filter, trn_asciips,
that changes text documents to PostScript. This filter can also format text
with one-, two-, or four-page images per side (number-up), and can print
them in landscape or portrait orientations (content-orientation). You need to
set up your supervisor’s filter-definition attribute to use this feature if users
need to print text files on PostScript printers.
1–10 Advanced Printing Software Overview