Print Servers on Redhat Linux 9 Clicking Yes will save the configuration changes to the /etc/printcap configuration file, restart the lpd printer daemon, and print a test page: Configuring Printers The Printer Configuration provides a number of options for managing printers. For example, you can edit or remove the properties of a printer queue by selecting the queue and clicking Edit or Delete. You can also configure a particular printer to be the default by clicking on the Default button. Whenever you make any changes, you must save them by clicking on the Apply button (which also restarts the cupsd printer daemon to take account of your changes). You can also test a printer from the Printer Configuration tool, by choosing a printer and selecting any of the test configurations from the Test menu. Starting (and Stopping) the Printer Daemon To control the cupsd printer daemon, we can once again use the Service Configuration GUI. However, you may never need to do this manually - the service is configured to start automatically on system start-up by default, and restarts automatically if you change its configuration via the Printer Configuration tool. If you do need to control the service manually, you can do it using the Service Configuration GUI (as we’ve described in other sections of this chapter - the service in question is called cups), or by using the service command at the command line to control the cups script: # service cups Usage: cupsd {start|stop|restart|condrestart|reload|status} # service cups restart Stopping cups: Starting cups: [OK] [OK] Printing from Applications By default, all applications send printing requests to the default printer configured on the system; but of course, if there are more printers available then the application’s Print dialog allows you to choose which print queue to send the job to. For example, if you’re printing a word-processed document from OpenOffice’s OpenWriter application, then you’d do so by selecting its File | Print option from the menu bar. When you do that, you get a Print dialog like this: 289
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