OKI MICROLINE 420 91909703 Leaflet

The OKI

®

 MICROLINE

®

 420 9-pin printer and its  

wide-carriage counterpart ML421 are a quantum leap 
forward in Impact printer performance. 

Engineered for dedicated forms printing in the most 
demanding point-of-sale, automation and utility 
environments, ML420/421 printers are right at home 
in applications such as retail sales counters, medical 
facilities, automotive rental and repair shops, airline 
boarding gates, financial departments and manufac-
turing sites. Their print speed and versatile paper 
handling make them ideal for the office, too.

 The ML420/421 sport 

features that give them a strong edge over their prede-
cessors as well as the competition:

•

  3-piece top cover provides easy access and unsur-

passed break resistance

•

  An internal cooling fan provides continuous airflow 

for the printhead—maximizing throughput productiv-
ity for long, unattended print jobs

•

  Additional feed rollers provide precise forms handling 

and printed-character placement accuracy 

 The 

ML420/421 have a zero-tear feature that accurately 
positions continuous forms for a clean tear at the per-
foration, which eliminates wasted stock. You also get 
perfect results with single sheets, index stock, labels 
and envelopes, too. All without jams or smears.

 The OKI ML420/421 

deliver the kind of productivity usually reserved for 
printers many times the price—starting with a super-
fast print speed of 570 characters-per-second (in 
SuperSpeed Draft mode). 

Then there’s the rugged printhead—with its  
400-million character life, powerful samarium cobalt 
magnets and stored-energy pins— delivering precise, 
sharp characters all the way through to the last  
page of a 6-part form. And the patented OKI  
closed-loop feedback system that assures character 
placement accuracy. 

The OKI ML420/421: Just turn ‘em on and  
turn ‘em loose. 

®

®

9-Pin Impact Printers