Editing the Printer Configuration in Red Hat Enterprise Linux 4
After adding your printer(s) in Red Hat Enterprise Linux 4, you can edit settings by selecting the printer from the printer list of the Printer Configuration tool and then clicking the Edit button. The tabbed window called “Edit a print queue” appears. The window contains the current values for the printer that you selected to edit. Make any changes and click OK. Then click Apply in the main Printer Configuration tool window to save the changes and restart the printer daemon. (In case you are wondering what a daemon is, it means disk and execution monitor. It is basically a program that runs in the background, waiting for some event to occur.)
The tabs and what they hold are as follows:
- Queue Name: To rename a printer, change the value of Name on the Queue Name tab. Click OK to return to the main window. The name of the printer changes in the printer list. Click Apply to save the change and restart the printer daemon.
- Queue Type: The Queue Type tab shows the queue type that you selected when adding the printer and its settings. You can change the queue type of the printer or just change the settings. After making modifications, click OK to return to the main window. Click Apply to save the changes and restart the printer daemon. Depending on which queue type you choose, you will see different options.
- Queue Options: From the Queue Options tab, you can select banner pages before and after your print job. You can also set the printable area of the page. To modify filter options, highlight the option and click Edit to modify or click Delete to remove it. Click OK to accept your changes and return to the main window. Click Apply to save the change and restart the printer daemon.
- Printer Driver: The Printer Driver tab shows which print driver is currently being used. This is the same list that you use when you add the printer. If you change the print driver, click OK to accept your changes and return to the main window. Then click Apply to restart the printer daemon.
- Driver Options: The Driver Options tab displays advanced printer options. Options vary for each print driver. Common options include
• Select Send Form-Feed (FF) if the last page of your print job is not ejected from the printer (for example, the form feed light flashes). If selecting this option does not force the last page out of the printer, try selecting Send End-of-Transmission (EOT) instead. Some printers require both Send Form-Feed (FF) and Send End-of-Transmission (EOT) to eject the last page.
• Select Send End-of-Transmission (EOT) if sending a form feed does not work. Refer to the preceding bullet on the Send Form-Feed (FF) option.
• Select Assume Unknown Data Is Text if your print driver does not recognize some of the data sent to it. Select it only if you are having problems printing. If this option is selected, the print driver assumes that any data it cannot recognize is text and tries to print it as text. If you select this option and the Convert Text to PostScript option, the print driver assumes that the unknown data is text and then converts it to PostScript.
• Select Prerender PostScript if you are trying to print characters outside of the basic ASCII character set (such as foreign language characters) that won’t print correctly. If your printer doesn’t support the fonts you are trying to print, try selecting this option. You should also select this option if your printer cannot handle PostScript level 3. This option converts it to PostScript level 1.
• Convert Text to PostScript is selected by default. If your printer can print plain text, try deselecting this when printing plain text documents to decrease the time it takes to print.
• Page Size allows you to select the paper size for your printer, such as US Letter, US Legal, A3, and A4.
• Effective Filter Locale defaults to C. If you are printing Japanese characters, select ja_JP. Otherwise, accept the default of C.
• Media Source defaults to Printer default. Change this option to use paper from a different tray.
- If you modify the driver options, click OK to return to the main window. Then click Apply to save the changes and restart the printer daemon.
To delete an existing printer, select the printer and click the Delete button on the toolbar. The printer will be removed from the printer list. Click Apply to save the changes and restart the printer daemon.
To set the default printer, select the printer from the printer list and click the Default button on the toolbar. The default printer icon appears in the first column of the printer list beside the default printer.