<s>
PC	B-Device
LOAD	I-Device
LETTER	I-Device
is	O
a	O
printer	O
error	B-Error_Name
message	I-Error_Name
that	O
has	O
entered	O
popular	O
culture	O
as	O
a	O
technology	O
meme	O
referring	O
to	O
a	O
confusing	O
or	O
inappropriate	O
error	B-Error_Name
message	I-Error_Name
.	O
</s>
<s>
The	O
error	B-Error_Name
message	I-Error_Name
's	O
vagueness	O
was	O
mocked	O
in	O
the	O
1999	O
comedy	O
film	O
Office	O
Space	O
.	O
</s>
<s>
The	O
message	O
is	O
encountered	O
when	O
printing	O
on	O
older	O
HP	O
LaserJet	O
printers	O
such	O
as	O
the	O
LaserJet	O
II	O
,	O
III	O
,	O
and	O
4	B-Device
series	O
.	O
</s>
<s>
These	O
two-character	O
codes	O
are	O
a	O
legacy	O
feature	O
carried	O
over	O
from	O
the	O
first	O
LaserJet	O
printers	O
,	O
which	O
could	O
only	O
use	O
a	O
two-character	O
display	O
for	O
all	O
printer	O
status	O
and	O
error	B-Error_Name
messages	I-Error_Name
.	O
</s>
<s>
Users	O
confuse	O
"	O
PC	O
"	O
with	O
"	O
personal	B-Device
computer	I-Device
"	O
,	O
"	O
LOAD	O
"	O
with	O
some	O
action	O
you	O
might	O
do	O
to	O
that	O
computer	O
,	O
and	O
"	O
LETTER	O
"	O
with	O
a	O
short	O
document	O
(	O
in	O
particular	O
outside	O
the	O
United	O
States	O
and	O
Canada	O
,	O
where	O
most	O
paper	O
is	O
A4	O
size	O
,	O
and	O
users	O
do	O
n't	O
know	O
"	O
LETTER	O
"	O
is	O
a	O
paper	O
size	O
at	O
all	O
)	O
.	O
</s>
<s>
The	O
LaserJet	B-Device
5	I-Device
introduced	O
a	O
"	O
GO	O
"	O
button	O
to	O
override	O
the	O
warning	O
message	O
.	O
</s>
<s>
The	O
LaserJet	B-Device
5	I-Device
,	O
4000	O
,	O
and	O
later	O
models	O
added	O
number	O
labels	O
on	O
paper	O
trays	O
and	O
displayed	O
a	O
new	O
message	O
,	O
"	O
TRAY	O
 [ x ] 	O
LOAD	O
PLAIN	O
[	O
paper	O
size ]	O
"	O
where	O
 [ x ] 	O
is	O
the	O
tray	O
number	O
.	O
</s>
