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									Page 1

LPENABLED(1)			Printing Tools			  LPENABLED(1)

NAME    [Toc]    [Back]

     lpenabled - monitor printer output	port and enable	printer	when port is

SYNOPSIS    [Toc]    [Back]

     lpenabled printer [ poll ]	 [ delay ]

DESCRIPTION    [Toc]    [Back]

     lpenabled monitors	the output device for the printer specified on the
     command line.  An example output device is	/dev/plp.  Once	the output
     device is writable	(by lp)	lpenabled will enable the printer using	the
     enable(1) command.

     lpenabled is normally invoked by lpsched(1) when it can not open the
     output device and the output device.  This	can happen when	the parallel
     port is connected to both a floppy	drive and a printer on O2 systems. The
     parallel port will	become available once the floppy is ejected at which
     time lpenabled will re-enable the printer allowing	printing to continue.
     lpenabled may also	be started if the ownership or device privileges are
     changed on	the /dev/plp* device such that lp can not write	to the device.
     Once the device privileges	are restored to	0600 and the ownership is
     reset to lp.sys then lpenabled will re-enable the printer allowing
     printing to continue.

     If	lpsched(1) is started with the -nopoll command line option then
     lpsched(1)	will not run lpenabled (lpsched(1) will	still disable the
     printer even if -nopoll is	used).	Note:  lpsched(1) is started in	the
     file /etc/init.d/lp at system bootup.

     If	the specified printer was not disabled by lpsched(1) then lpenabled

     lpenabled is found	in print version 1.7 or	higher.	 lpenabled is only run
     by	lpsched(1) on IRIX 6.3 and higher (so IRIX 6.2 systems will not	use
     lpenabled even though it may be present).

     printer	   Required. The name of the printer to	monitor. Only one
		   printer may be monitored.

     [ poll ]	   Time	period,	in seconds, to wait between checking to	see if
		   the output port has become available.  Default is 30

     [ delay ]	   Time	period,	in seconds, to delay before the	first check of
		   the parallel	port is	done.  Default is 30 seconds.  If
		   delay is specified then poll	must also be specified.

									Page 2

LPENABLED(1)			Printing Tools			  LPENABLED(1)

FILES    [Toc]    [Back]


SEE ALSO    [Toc]    [Back]

     lp(1), lpstat(1), lpsched(1), enable(1).

									PPPPaaaaggggeeee 3333
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