ML520/521
9-PIN IMPACT PRINTERS
This Reliable Printer
Does It All.
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
OKI SMART Paper Handling TM 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.
The superior- performance
9-pin printer for multiple paper-handling applications.
Productivity Enhancing Features.
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.
The rugged, tough OKI printhead has twice the life of ordinary impact printheads. And, with
OKI
SMART
Paper Handling TM , adjusts for any paper type
— automatically.
ML520/521
9-PIN IMPACT PRINTERS
Technology, Speed and Print Characteristics
Printhead: 9-Pin SIDM
Graphics Resolution: 288(H) x 144(V) DPI maximum
Print Speed and Character Matrix:
Mode NLQ
Speed (in cps)80
Utility
325
High Speed Draft
435
Matrix (H x V)17 x 13
Feed Rate: 5.0 ips
9 x 7 7 x 7
Emulation, Interface and Memory
Co-resident: IBM ProPrinter, Epson FX and OKI MICROLINE
Standard Interface: Centronics ® Parallel
Optional Interface: RS-232C Serial
Standard Memory: 128K
Receive Buffer: 64K
Fonts/Characters
Code Pages: Standard ASCII; Epson Character Set I & II;
IBM Character Set I, II & All Characters; Foreign character substitution; International character sets; Code page 850,
860, 863, 865; Bar code
NLQ: Courier, Gothic
Utility/HSD: Gothic
Bar Codes: Bar code 39, UPC E, EAN 8 & 13, Interleaved 2 of 5,
Code 128 (A, B, C), PostNet TM
Paper Handling
Paper Input: Continuous forms, Cut sheet, Card stock,
Envelopes, Labels
Number of Copies: 6-part forms
Thickness: 0.14" (0.36mm) Rear Feed; 0.17" (0.44mm) Bottom Feed
Paper Feeding: Top, Rear, Bottom; Built-in Rear Push Tractor;
Friction Feed (Top)
Options: Top-mount Pull Tractor, Cut Sheet Feeder, Bottom Feed
Tractor Kit w/Metal tear bar, Roll Paper Stand (ML520 only)
Warranty and Reliability
Limited Warranty: One year parts and labor
MTBF: 6,000 hours (25% duty cycle/35% page density)
Printhead Life: 200,000,000 characters avg. in 10 cpi utility mode @ normal, 25% duty, 35% page density
Environmental
Size (WxDxH): ML520 – 16.9" x 14.9" x 6.5"
(43cm x 37.8cm x 16.5cm); ML521 – 23" x 14.9" x 6.5"
(58.4cm x 37.8cm x 16.5cm)
Net Weight: ML520 – 17.6 lb. (8.0kg), ML521–23.1 lb. (10.5kg)
Acoustic Noise: 55 dBA (NLQ mode), 53 dBA (Quiet mode)
Ordering Information (Part Number)
Printer:
ML520 – 120V
ML520 – 220/240V
ML521 – 120V
ML521 – 220/240V
62409001
62409002
62410001
62410002
Accessories:
Bottom Feed Push Tractor (ML520)70022901
Bottom Feed Push Tractor (ML521)70023101
Pull Tractor Kit (ML520)70023001
Pull Tractor Kit (ML521)70023201
Cut Sheet Feeder (ML520)70022501
Cut Sheet Feeder (ML521)70022701
OkiLAN ® 10 Base-T Ethernet
External Print Server 70034401
Roll Paper Stand (ML520 only)70023301
Super-speed 19.2K RS-232C Serial I/F 70012801
Ribbon:
Black cartridge 52107001
All specifications subject to change without notice.
© 1999 Okidata, Division of Oki America, Inc. OKI, Reg. T.M., M.D., M.R.,
Oki Electric Industry Co., Ltd. MICROLINE, OkiLAN, Reg. T.M., Oki Electric
Industry Co., Ltd. OKI SMART Paper Handling, T.M., Oki Electric Industry Co., Ltd.
7-Day/24-Hour logo T.M., Oki America, Inc. Novell, NetWare, YES Tested and
Approved logo Reg. T.M., Novell, Inc. Centronics Reg. T.M. Centronics Data
Computer Corp. EPSON, Reg. T.M., Seiko Epson Corp. IBM, Reg. T.M.,
International Business Machines Corp. PostNet logo, T.M., USPS. Energy Star
Reg. T.M., U.S. EPA.
Printed in the USA.
MS8812/0399
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