Technical data

• Updates the related printcap database.
• Creates and starts queues.
• Allows you to add commands to the automatic startup and shutdown command
procedures.
To print, users at an OpenVMS client enter the DCL command PRINT.
Users working on UNIX clients typically enter the
lpr
command.
To use the Compaq TCP/IP Services for OpenVMS network printer services, you
need the following:
• The remote host name.
• The name of the remote print queue or the local queue name. (LPD accepts
both local and remote entries.)
• Compaq PrintServer extensions to use the PRINT/PARAMETERS=op-
tions=value command.
• TCP/IP Services for OpenVMS installed and LPR/LPD enabled on your
OpenVMS system.
Both the client component (LPR) and the server component (LPD) are partially
included in an OpenVMS queue symbiont. The client is activated when you use
one of the following commands
• PRINT—to submit a print job to a remote printer whose queue is managed
by the LPD symbiont.
• LPRM—to remove (cancel) a pending print job that was previously spooled.
• LPQ—toviewthequeueofpendingjobsforaremoteprinter
The LPD server is activated when a remote user submits a print job to a printer
that is configured on the OpenVMS server. The LPD server consists of the following
two components:
• LPD receiver—a process that handles the incoming request from the remote
system over the network. The LPD receiver copies the control file (CF) and
data file (DF) that represent the print job to the requested printer’s LPD spool
directory, and places the control file in the print queue for further processing.
The receiver also handles LPQ and LPRM functions from remote clients.
• LPD symbiont—parses the print job’s control file, and submits the data files to
the designated local printer’s print queue.
ThesameLPDsymbiontimageisusedforbothclientandserver. It
acts as the client on queues that are set up for remote printers, and it
acts as the server on the local LPD queue. The LPD uses the printcap
database to process print requests. The printcap database, located in
SYS$SPECIFIC:[TCPIP$LPD]TCPIP$PRINTCAP.DAT, is an ASCII text file that
defines the print queues. The printcap entries are similar in syntax to the entries
in a UNIX
/etc/printcap
file.
Use the printer setup program LPRSETUP to configure or modify printers. The
setup program creates spool directories and log files based on the information you
supply. For more information and example setup listings, refer to the Compaq
TCP/IP Services for OpenVMS Management guide.
For more information about the following network printing services, refer to the
Compaq TCP/IP Services for OpenVMS User’s Guide:
• Sending print jobs to a printer connected to a remote internet host
4–6 OpenVMS Operating System TCP/IP Features