ENWW Configuring for LPD Printing 158
About LPD
Line Printer Daemon (LPD) refers to the protocol and programs 
associated with line-printer spooling services that may be installed 
on various TCP/IP systems.
Some of the widely used systems in which the HP Jetdirect print 
server functionality supports LPD include:
● Berkeley-based (BSD) UNIX systems
● HP-UX
● Solaris
● IBM AIX
● Linux
● Windows NT/2000
● Mac OS 
The UNIX configuration examples in this section show the syntax 
for BSD-based UNIX systems. The syntax for your system may vary. 
See your system documentation for the correct syntax.
Note The LPD functionality can be used with any host 
implementation of LPD that complies with the 
RFC 1179 document. The process for configuring 
printer spoolers, however, may differ. See your 
system documentation for information on 
configuring these systems.
The LPD programs and protocol include the following:
Table 5.1 LPD Programs and Protocols
Program Name  Purpose of Program
lpr Queues jobs for printing
lpq Displays print queues
lprm Removes jobs from print queues
lpc Controls print queues
lpd Scans and prints the files if the specified printer is 
connected to the system.
If the specified printer is connected to another 
system, this process forwards the files to an lpd 
process on the remote system where the files are 
to be printed.