LPD(1)			 HP-UX 5.0			LPD(1)

     NAME
	  lpd - line printer daemon

     SYNOPSIS
	  /usr/lib/lpd [ printername ]

     HP-UX COMPATIBILITY
	  Level:    HP-UX/STANDARD

	  Origin:   System III

     DESCRIPTION
	  Lpd is the daemon for the line printer.  It is automatically
	  initiated by the line printer spooling command, lpr.

	  Printername is the name of a printer	device	file,  without
	  the  initial	"/dev/"	 (i.e.	lp8).	If  printername is not
	  specified, the default printer lp is used.

	  Lpd searches the directory /usr/spool for a directory of the
	  same name as the specified printername.  Thus, /usr/spool/lp
	  is used by default.  To be able to  use  other  printers,  a
	  directory  for each printer must be created in /usr/spool by
	  the super-user.  (Other spool directories can	 be  specified
	  by lpr with the -d option.)

	  The file lock is used to prevent two daemons	from  becoming
	  active  on the same spool directory.	Several daemons can be
	  active simultaneously,  as  long  as	they  are  working  on
	  different   spool   directories.    After  the  program  has
	  successfully set the lock, it forks and the main path exits,
	  thus	spawning  the  daemon.	 The  directory is scanned for
	  files beginning with "df".  Each such file is submitted as a
	  job.	 Each  line  of	 a  job	 file  must  begin  with a key
	  character to specify what to do with the  remainder  of  the
	  line.	 The key characters are:

	  L	 specifies that the remainder of the  line  is	to  be
		 sent as a literal.
	  I	 is the same as L, but signals the $IDENT  card	 which
		 is to be mailed back by the mail option.
	  B	 specifies that the rest of the line is a  file	 name.
		 That file is to be printed.
	  F	 is the same as B except a form-feed is	 prepended  to
		 the file.
	  U	 specifies that the rest of the line is a  file	 name.
		 After	the  job  has  been  transmitted,  the file is
		 unlinked.
	  M	 is followed by a user ID; after the job  is  sent,  a
		 message is mailed to the user via the mail(1) command
		 to verify the sending of the job.
	  D	 specifies  that  the  remainder  of  the  line	 is  a
		 pathname for a specific printer.

	  Any error encountered will cause the daemon to give up, wait
	  10  seconds,	and start over.	 This means that an improperly
	  constructed "df" file may cause the same job to be submitted
	  every 10 seconds.

	  To  restart  lpd  (in	 the  case  of	hardware  or  software
	  malfunction),	 it  is necessary to first kill the old daemon
	  (if it is  still  alive),  and  remove  the  lock  file  (if
	  present),  before  initiating	 the new daemon.  This is done
	  automatically by /etc/rc when the system is brought  up,  in
	  case there were any jobs left in the spooling directory when
	  the system last went down.

	  Lpd will pass ASCII escape sequences to the  output  device.
	  This	enables	 users	to  access  special  capabilities like
	  expanded type fonts, alternate character sets, etc.

     FILES
	  /usr/spool/lp/*	      default  spool  area  for	  line
				      printer daemon.
	  /usr/spool/printername/*    spool   area   for    additional
				      printers
	  /etc/passwd		      used to get the user's name.
	  /dev/lp		      default line printer device.
	  /dev/lp*		      additional printer devices.

     SEE ALSO
	  lpr(1).