<s>
Intelligent	O
Printer	O
Data	O
Stream	O
(	O
IPDS	O
)	O
is	O
InfoPrint	O
Solution	O
Company	O
's	O
Systems	B-Device
Application	I-Device
Architecture	I-Device
host-to-printer	O
data	O
stream	O
for	O
Advanced	B-Application
Function	I-Application
Presentation	I-Application
subsystems	O
.	O
</s>
<s>
It	O
is	O
used	O
by	O
a	O
variety	O
of	O
InfoPrint	O
and	O
OEM	O
print	B-Application
servers	I-Application
that	O
drive	O
all	O
points	O
addressable	O
(	O
APA	O
)	O
page	O
printers	O
.	O
</s>
<s>
The	O
IPDS	O
architecture	O
allows	O
for	O
both	O
spooled	O
data	O
and	O
print	O
job	O
management	O
to	O
flow	O
bidirectionally	O
between	O
the	O
print	B-Application
server	I-Application
(	O
or	O
print	O
driver	O
)	O
and	O
the	O
Printer	O
Controller	O
.	O
</s>
<s>
This	O
is	O
above	O
the	O
network	O
transport	O
layer	O
(	O
typically	O
TCP/IP	B-Protocol
or	O
SNA	B-Architecture
)	O
and	O
the	O
supporting	O
hardware	O
LANs	B-General_Concept
,	O
channels	O
and	O
network	O
controllers	O
.	O
</s>
<s>
IPDS	O
carries	O
data	O
and	O
instructions	O
from	O
the	O
print	B-Application
server	I-Application
to	O
the	O
printer	O
in	O
structured	O
fields	O
.	O
</s>
<s>
The	O
printer	O
controller	O
processes	O
these	O
IPDS	O
commands	O
and	O
returns	O
acknowledgment	O
back	O
to	O
the	O
print	B-Application
server	I-Application
.	O
</s>
<s>
Similar	O
to	O
PPDS	B-Device
,	O
IPDS	O
uses	O
binary	O
encoded	O
commands	O
and	O
parameters	O
,	O
but	O
IPDS	O
is	O
not	O
compatible	O
with	O
PPDS	B-Device
.	O
</s>
<s>
"	O
IPDS	O
is	O
the	O
'	O
online	O
 '	O
way	O
being	O
used	O
to	O
print	O
AFP	O
(	O
Advanced	B-Application
Function	I-Application
Presentation	I-Application
)	O
documents	O
.	O
</s>
<s>
HP	O
—	O
various	O
printers	O
using	O
a	O
plug-in	O
Flash	B-Device
memory	I-Device
device	O
.	O
</s>
<s>
A	O
number	O
of	O
print	B-Application
servers	I-Application
are	O
available	O
from	O
companies	O
such	O
as	O
MPITech	O
,	O
IPDS	O
Printing	O
Solutions	O
,	O
IOCorp	O
,	O
Xerox	O
,	O
and	O
Microsoft	O
.	O
</s>
