OKI ML3320eco 01308201 Data Sheet

© 2011 Oki Europe Ltd. Oki Printing Solutions is the trading name of Oki Europe Ltd. Version 1.0 02/2011.

Specification subject to change without notice. All trademarks acknowledged.

WARNING! This product complies with EN55022 Class B. However when fitted with the optional network interface card or optional cut sheet feeder, 
compliance to EN55022 is Class A. In a domestic environment this configuration may cause radio interference, in which case the user may be 
required to take adequate control measures.

Single Bin Cut Sheet Feeder ML3320eco: 44497402; ML3321eco: 44497502

Pull Tractor ML3320eco: 09002365; ML3321eco: 09002369

Roll Paper Stand 09002332 (ML3320eco only)

Bottom push tractor ML3320eco: 09002366; ML3321eco: 09002370

Serial RS232C 44455102

Network Card 44455302

(3 million characters) 09002303

Number of pins 9

Columns

ML3320eco: 80 (10cpi); 160 (maximum in compression mode)
ML3321eco: 136 (10cpi); 272 (maximum in compression mode)

Character pitch 10/12/15/17.1/20 pitch and proportional

Graphics resolution Up to 240 x 216dpi

Print speed

Super Speed Draft: 435cps (12cpi); High Speed Draft: 387cps 

(10/12cpi);  Utility: 290cps (10/12cpi);  Near Letter Quality: 

73cps (10/12cpi)

Interfaces Centronics parallel interface, USB 2.0

Optional interfaces Serial RS 232C, OKILAN 7120e3 Network Card

Emulations Epson FX, IBM ProPrinter, Microline

Typeface & font HSD, Utility, NLQ-Courier (Scalable), NLQ-Gothic (Scalable), 

Barcodes, OCR-B

Typestyle Emphasised, Enhanced, Double Width, Double Height, Italics, 

Bold, Superscript, Subscript, Underline, Overscore

Input buffer 128Kbytes

Power supply Single phase 220 to 240VAC,  +/- 10%, frequency 50/60Hz

Power consumption ISO/IEC 10561 Letter, Draft, Range1: 27.5W; 

Sleep mode (no options attached): <1.5W

Noise level 57dB(A); 52dB(A) (quiet mode)

Dimensions (HxWxD) ML3320eco: 116 x 398 x 345mm;

ML3321eco: 116 x 552 x 345mm

Weight ML3320eco: 5.8kg approx; ML3321eco: 7.6kg approx

Print Head life 200 million characters

Reliability MTBF: 10,000 hours

Warranty 3 years extended warranty upon registration within  

30 days of purchase

Product order numbers ML3320eco: 01308202; ML3321eco: 01308302

Consumables Information: Only use genuine OKI Printing Solutions Original consumables to ensure the best quality and performance from your hardware. Non OKI Printing Solutions Original 

products may damage your printer’s performance and invalidate your warranty.

Continuous paper ML3320eco: 76 - 254mm; ML3321eco: 76 - 406mm

Continuous envelopes ML3320eco: 165 x 92mm; 

ML3321eco: 241 x 105mm (Bottom feed only)

Continuous (multi-parts): 0.5mm; 

Cut sheet (single sheet): 0.5mm

Copy capability Up to 1 original + 4 copies

Paper feeding Paper parking, Low tear-off, Autoload single sheet,  

Push tractors, Bottom feed

Optional paper feeding Pull tractor, Single bin cut-sheet feeder, Roll paper stand 

(ML3320eco only), Bottom push tractor

Our devices are manufactured to the highest standards of quality and technology, which has been confirmed by independent tests. We are so convinced of the high quality of our 
products that we are offering you an extension of the standard warranty period to 3 years – for free! Simply register your product within 30 days of purchase to be eligible for our 
unique all inclusive offer. Fully covered by OKI! For further information please visit: 

Without registration, the standard pan-European 1 year warranty applies.