Okidata ML520

MICROLINE 520
There’s nothing like it in its class.
The MICROLINE® 520/521 is measurably
faster: it prints faster in any mode, and
feeds paper faster, too. And its printhead
is designed to last twice
as long as those of
competitive dot
matrix printers.
It also has something you won’t get
with conventional
9-pin printers: patented
OKISMART Paper HandlingTM for hasslefree switching between different paper
types. No more guesswork. No more
searching for the owner’s manual. No
more paper jams or uneven print quality.
Instead, the ML520/521 “reads and
learns,” automatically adjusting to the
paper you feed it. You get perfect output
on single sheets, card stock, multi-part
forms (up to six parts!) and labels.
What’s more, envelopes print out
flawlessly, with no jams or smears
Individual pins in the
printhead also adjust to
the changes in paper, so
uneven printing, smears and
light spots are things of the past.
The printhead lasts longer, and the
printer uses less power and works
more efficiently.
The ML520/521 can also increase
your productivity: paper loading is
easier than ever, and its jam-free paper
path ensures uninterrupted throughput
during long print runs.
It can save you money in the long
run, as well: the zero tear function of
the optional Bottom Push Tractor lets
you print on “difficult” media without
wasting any forms.
You get handsome output and
exceptionally fast throughput every
time you print with the ML520/521.
When it comes to sheer print
speed, the ML520/521 turns out
a blazing 435 characters per
second (cps) in high speed draft
print mode, 325 cps in utility
mode, and 80 cps in near-letter
quality mode.
The ML520/521 has
8 resident bar code
fonts, including USPScertified PostNet,TM
for envelopes
and labels. Plus,
to get the most out
of your software
without extra cost,
select from Epson,® IBM®
and MICROLINE® emulations, all
of which are resident standard.
The ML520/521 is so reliable,
it comes with a 1-year warranty
on parts, labor and printhead.
In addition, the ML520/521
printhead has a life expectancy
of over 200 million characters,
so you know it can do the job
when you need it.
The ML520/521 has several
OKI-engineered accessories to
help you make the most of your
work day — including a
Bottom Feed Push Tractor
kit for thick forms; a Pull
Tractor for multi-part
forms, card stock
and labels; a serial
interface that lets you
connect easily to a
variety of systems
and increase the
productivity of your
work environment; a 4-million
character long-life ribbon; and a
Cut Sheet Feeder that gives you
more time for other work during
long, unsupervised print runs.
For reliability you can count
on, it’s the ML520/521.
Print Speed And Quality![]() | |
Super Speed Draft (cps) | 435 |
High Speed Draft | 430 CPS (12 CPI) |
Utility Speed | 320 CPS (12 CPI) |
Near Letter Quality Speed | 80 CPS (12 CPI) |
Number Of Colors | 1 |
Maximum Graphics Resolution (dpi) | 240x216 |
Fonts And Bar Codes![]() | |
Resident Near Letter Quality Fonts | |
Resident Bar Code Fonts | |
Resident Courier Font | |
Resident Gothic Font | |
UPC Code Narrow Carriage | |
Compatibility![]() | |
Emulations![]() | |
Oki Data Microline Emulation | |
IBM Graphics ProPrinter Emulation | ProPrinter |
Epson FXLQ Series Emulation | FX |
Paper Handling![]() | |
Number Of Copies (part) | 6 |
Menu Mode Paper Park | Yes / Yes |
Automatic Paper Forms Loading | Yes |
Semi-automatic Single Sheet Feed | Automatic |
Short Tear Off | Yes |
Zero Tear Off | Yes |
Rear Feed | Yes |
Bottom Feed | w/Pull or Bott. Trac. |
Top Pull Tractors | Optional |
Push Tractors | Rear / (Opt. Bott.) |
Continuous Forms Narrow Carriage | 3 - 10 |
Paper Feed Rate | 5 Inch / Sec< |
Cut Sheet Feeder Option | 1 Bin |
Roll Paper Stand Option | Yes (520 Only) |
Connectivity![]() | |
Number of Pins | 9 Pin / .34mm |
Parallel Interface | Standard> |
Serial Interface | Optional |
Network Capability | No |
USB | No |
Printhead![]() | |
Autogapping Printhead | Yes |
Printhead Life (Characters) | 200 Million |
Performance![]() | |
Memory Buffer Size | 4K |
MTBF @ 25% of Duty Cycle (in hours) | 6000 |
Operating / Physical Specifications![]() | |
Noise Level In Operating Mode | 55 db |
Noise Level In Quiet Mode | 53 db |
Ribbon Life (Characters) | 4 Million |
220/240 Volt Model Available | Yes |
Power Voltage | 120V |
Detachable Power Cord | Yes |
Power Frequency | 50/60 Hz |
Power Consumption | 70 Watts |
EPA Energy Star Compliance | Yes |
Dimensions Of Narrow Carriage With Box (W x D x H) | 11.75 x 22 x 22.75 |
Dimensions Of Narrow Carriage Without Box (W x D x H) | 16.9 x 14.9 x 6.5 |
Weight Of Narrow Carriage With Box | 30.2 |
Weight Of Narrow Carriage Without Box | 23.1 |
Additional Features![]() | |
Front Panel Direct Access Controls | Yes |
Front Panel Limited Function Mode | Yes |