We assume the following setup:
The print server host pserver (IP 192.168.101.3) runs
the LPRng software to schedule jobs.
The printer lp is a laserjet with a JetDirect card,
IP set to 192.168.101.4.

[aliases]
#
#	If we specify "lp" we want to access the queue
#	on the server.
#
lp			=	lp@192.168.101.3


[hosts]
# We need to specify all forms of addresses, otherwise
# users might bypass the "xusers" settings.
192.168.101.3
	type		=	lprng
	xusers		=	someuser jim joe
	timeout.lpr	=	30
	timeout.lpq	=	10
	timeout.lprm	=	10
	timeout.lpc	=	10
pserver
	type		=	lprng
	xusers		=	someuser jim joe
	timeout.lpr	=	30
	timeout.lpq	=	10
	timeout.lprm	=	10
	timeout.lpc	=	10
pserver.mydomain.com
	type		=	lprng
	xusers		=	someuser jim joe
	timeout.lpr	=	30
	timeout.lpq	=	10
	timeout.lprm	=	10
	timeout.lpc	=	10

[devices]
# hplj2200tdn refers to the printer type in yalcsnmp.cfg,
# public is the SNMP community
# 2c is the SNMP protocol version to use.
lp@192.168.101.3
	snmp		=	192.168.101.4:hplj2200tdn:public:2c