COHERENT manpages
This page displays the COHERENT manpage for hpd [Spooler daemon for laser printer].
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hpd -- System Administration Spooler daemon for laser printer /usr/lib/hpd hpd is the daemon that prints jobs spooled by the command hpr. All jobs are printed on the printer that is accessed through device /dev/hp. For information on this device, and on printer management in general, see the Lexicon entry printer. The command hpr invokes hpd automatically. If there is no printing to do, or if another daemon is already running (as indicated by the file dpid), hpd exits immediately. Otherwise, it searches the spool directory for control files of listings to print. A control file contains the names of files to print, the user name, banner pages, and files to be removed upon completion. hpd does not print listings in any particular order. There is no prioritization of printing, either by size or by requester. The command hpskip aborts or restarts printing of the job currently being printed by hpd. Files /dev/rhp -- Raw device for LaserJet printer /usr/spool/hpd -- Spool directory /usr/spool/hpd/cf* -- Control files /usr/spool/hpd/df* -- Data files /usr/spool/hpd/dpid -- Lock and process id See Also Administering COHERENT, despooler, hpr, hpskip, init, lpd, printer Notes Beginning with release 4.2, COHERENT also includes the printer daemon despooler, which prints files spooled with the command lp. For details on how COHERENT manages printing, see the Lexicon entry for printer.