Printing
Learn how to print files, manage the progress of print requests, configure printers. You
can also learn about the concepts and procedures for print spooling and printer backend
functions.
Printing and print jobs AIX® offers a myriad of configuration and setup options.Printing administration Printing bidirectional data shaping , in which the characters are converted into the correct glyphs according to their position within the text. Print spooler queuing system , is to manage printer use, especially on systems that have more than one printer.Generic base operating system spooler Spooler parts Spooler data flow: commands and backend lp , lpr , qprt , and enq . Spooler data flow (enq command) lp , lpr , qprt , and enq can be used to submit a job to the spooler for processing.Backend processing qdaemon ; the qdaemon determines that a job's turn to be processed has arrived, sets up an execution environment for the queue backend, constructs an argument vector for the backend, and, via fork and exec , causes the backend to begin execution.Virtual printers and formatter filters piobe , the formatter filter is normally the next-to-last process in the pipeline of filters processing the print job. The formatter filter is composed of two pieces of code./etc/qconfig spooler configuration file /etc/qconfig file describes all of the queues defined to the base operating system.Printer backend programming Virtual printer definitions and attributes virtual printer definition is a file that pairs the attributes or characteristics of a specific printer with the attributes of a specific data stream type.Printer colon file escape sequences Printer colon file conventions Print formatter example Backend and qdaemon interaction qdaemon and the backend communicate through a status file.Back-end routines in libqb qdaemon process.Printer code page translation tables Transparent printing Printer-specific information System V printer configuration AIX printer configuration.Base operating system spooler troubleshooting Printing terminology