<s>
The	O
Line	O
Printer	O
Daemon	O
protocol/Line	O
Printer	O
Remote	O
protocol	O
(	O
or	O
LPD	O
,	O
LPR	O
)	O
is	O
a	O
network	B-Application
printing	I-Application
protocol	O
for	O
submitting	O
print	O
jobs	O
to	O
a	O
remote	O
printer	O
.	O
</s>
<s>
The	O
original	O
implementation	O
of	O
LPD	O
was	O
in	O
the	O
Berkeley	B-Operating_System
printing	I-Operating_System
system	I-Operating_System
in	O
the	O
BSD	B-Operating_System
UNIX	I-Operating_System
operating	O
system	O
;	O
the	O
LPRng	O
project	O
also	O
supports	O
that	O
protocol	O
.	O
</s>
<s>
The	O
Common	B-Application
Unix	I-Application
Printing	I-Application
System	I-Application
(	O
or	O
CUPS	O
)	O
,	O
which	O
is	O
more	O
common	O
on	O
modern	O
Linux	B-Application
distributions	O
and	O
also	O
found	O
on	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
supports	O
LPD	O
as	O
well	O
as	O
the	O
Internet	B-Protocol
Printing	I-Protocol
Protocol	I-Protocol
(	O
IPP	O
)	O
.	O
</s>
<s>
Commercial	O
solutions	O
are	O
available	O
that	O
also	O
use	O
Berkeley	O
printing	B-Protocol
protocol	I-Protocol
components	O
,	O
where	O
more	O
robust	O
functionality	O
and	O
performance	O
is	O
necessary	O
than	O
is	O
available	O
from	O
LPR/LPD	B-Protocol
(	O
or	O
CUPS	O
)	O
alone	O
(	O
such	O
as	O
might	O
be	O
required	O
in	O
large	O
corporate	O
environments	O
)	O
.	O
</s>
<s>
An	O
LPD	O
printer	O
is	O
identified	O
by	O
the	O
IP	B-Protocol
address	I-Protocol
of	O
the	O
server	O
machine	O
and	O
the	O
queue	B-Device
name	O
on	O
that	O
machine	O
.	O
</s>
<s>
Many	O
different	O
queue	B-Device
names	O
may	O
exist	O
in	O
one	O
LPD	O
server	O
,	O
with	O
each	O
queue	B-Device
having	O
unique	O
settings	O
.	O
</s>
<s>
Note	O
that	O
the	O
LPD	O
queue	B-Device
name	O
is	O
case	O
sensitive	O
.	O
</s>
<s>
Some	O
modern	O
implementations	O
of	O
LPD	O
on	O
network	O
printers	O
might	O
ignore	O
the	O
case	O
or	O
queue	B-Device
name	O
altogether	O
and	O
send	O
all	O
jobs	O
to	O
the	O
same	O
printer	O
.	O
</s>
<s>
Others	O
have	O
the	O
option	O
to	O
automatically	O
create	O
a	O
new	O
queue	B-Device
when	O
a	O
print	O
job	O
with	O
a	O
new	O
queue	B-Device
name	O
is	O
received	O
.	O
</s>
<s>
D-Link	O
in	O
model	O
DP-301P	O
+	O
)	O
have	O
a	O
tradition	O
of	O
calling	O
the	O
queue	B-Device
name	O
“	O
lpt1	B-Device
”	O
or	O
“	O
LPT1	B-Device
”	O
.	O
</s>
<s>
A	O
printer	O
that	O
supports	O
LPD/LPR	B-Protocol
is	O
sometimes	O
referred	O
to	O
as	O
a	O
"	O
TCP/IP	B-Protocol
printer	I-Protocol
"	O
(	O
TCP/IP	B-Protocol
is	O
used	O
to	O
establish	O
connections	O
between	O
printers	O
and	O
clients	O
on	O
a	O
network	O
)	O
,	O
although	O
that	O
term	O
would	O
be	O
equally	O
applicable	O
to	O
a	O
printer	O
that	O
supports	O
the	O
Internet	B-Protocol
Printing	I-Protocol
Protocol	I-Protocol
.	O
</s>
