<s>
Inkjet	O
printing	O
is	O
a	O
type	O
of	O
computer	O
printing	O
that	O
recreates	O
a	O
digital	B-Algorithm
image	I-Algorithm
by	O
propelling	O
droplets	O
of	O
ink	O
onto	O
paper	O
and	O
plastic	O
substrates	O
.	O
</s>
<s>
In	O
the	O
late	O
1970s	O
,	O
inkjet	O
printers	O
that	O
could	O
reproduce	O
digital	B-Algorithm
images	I-Algorithm
generated	O
by	O
computers	O
were	O
developed	O
,	O
mainly	O
by	O
Epson	O
,	O
Hewlett-Packard	O
(	O
HP	O
)	O
and	O
Canon	O
.	O
</s>
<s>
Thermal	O
inkjet	O
In	O
the	O
thermal	O
inkjet	O
process	O
,	O
the	O
print	O
cartridges	O
consist	O
of	O
a	O
series	O
of	O
tiny	O
chambers	O
,	O
each	O
containing	O
a	O
heater	O
,	O
all	O
of	O
which	O
are	O
constructed	O
by	O
photolithography	B-Algorithm
.	O
</s>
<s>
Pigment-based	O
aqueous	O
inks	O
are	O
typically	O
more	O
costly	O
but	O
provide	O
much	O
better	O
long-term	O
durability	O
and	O
ultraviolet	B-Application
resistance	O
.	O
</s>
<s>
Unlike	O
most	O
aqueous	O
inks	O
,	O
prints	O
made	O
using	O
solvent-based	O
inks	O
are	O
generally	O
waterproof	O
and	O
ultraviolet-resistant	O
(	O
for	O
outdoor	O
use	O
)	O
without	O
special	O
over-coatings	O
.	O
</s>
<s>
The	O
suction	O
pump	O
mechanism	O
is	O
frequently	O
driven	O
by	O
the	O
page	O
feed	O
stepper	B-Algorithm
motor	I-Algorithm
:	O
it	O
is	O
connected	O
to	O
the	O
end	O
of	O
the	O
shaft	O
.	O
</s>
<s>
Special	O
software	O
or	O
at	O
least	O
a	O
modified	O
device	B-Application
driver	I-Application
are	O
usually	O
required	O
,	O
to	O
deal	O
with	O
the	O
different	O
color	B-Algorithm
mapping	I-Algorithm
.	O
</s>
<s>
They	O
can	O
print	O
an	O
image	O
of	O
36	O
megapixels	O
on	O
A3	O
borderless	O
photo	O
paper	O
with	O
444	O
ppi	B-Algorithm
.	O
</s>
<s>
A	O
compact	O
photo	O
printer	O
is	O
a	O
stand-alone	O
inkjet	O
printer	O
designed	O
to	O
produce	O
4×6	O
or	O
2×3inch	O
prints	O
from	O
digital	B-Device
cameras	I-Device
.	O
</s>
<s>
They	O
are	O
small	O
units	O
,	O
usually	O
with	O
large	O
LCDs	B-Device
in	O
order	O
to	O
allow	O
people	O
to	O
browse	O
and	O
edit	O
their	O
photos	O
,	O
as	O
can	O
be	O
done	O
on	O
a	O
computer	O
.	O
</s>
<s>
Compact	O
photo	O
printers	O
typically	O
feature	O
a	O
large	O
number	O
of	O
connection	O
options	O
,	O
including	O
USB	B-Protocol
and	O
most	O
memory	B-Device
card	I-Device
formats	O
.	O
</s>
<s>
See	O
Microelectromechanical	B-Architecture
systems	I-Architecture
.	O
</s>
<s>
Inkjet	O
printers	O
are	O
used	O
to	O
form	O
conductive	O
traces	O
for	O
circuits	O
,	O
and	O
color	O
filters	O
in	O
LCD	B-Device
and	O
plasma	O
displays	O
.	O
</s>
<s>
The	O
applications	O
of	O
such	O
printing	O
methods	O
include	O
organic	O
thin-film	O
transistors	O
,	O
organic	B-Device
light	I-Device
emitting	I-Device
diodes	I-Device
,	O
organic	O
solar	O
cells	O
,	O
and	O
sensors	O
.	O
</s>
<s>
They	O
are	O
also	O
used	O
for	O
the	O
production	O
of	O
OLED	B-Device
displays	I-Device
.	O
</s>
