CE: Okidata ML421 Impact Printer - Okidata

CE: Okidata Microline 420/ 421/ 490/ 491/ Black Ribbon - Genuine Okidata

CE: Okidata 420/421 Printhead - Okidata

Office Product: SoDo Tek TM RJ45 Cat5e Ethernet Patch Cable For OKI OKIDATA Microline 421 Printer - Blue - 25 ft - SoDo Tek

Single Detail Page Misc: Okidata Genuine ML420/421/490/491 Black Ribbon

Office Product: NEW ML420/421/490/491 Black Ribbon (Printers- Inkjet/Dot Matrix) - OKIDATA

Home: DOT MATRIX PRINT-OKIML421 - Okidata

CE: Porelon 11582 Nylon Ribbon for Okidata ML 420/421 Black - Porelon

Office Product: SoDo Tek TM RJ45 Cat5e Ethernet Patch Cable For OKI OKIDATA Microline 421n Printer - Blue - 25 ft - SoDo Tek

CE: Okidata OKI Microline 421 - printer - B/W - dot-matrix ( 92009701 ) - Okidata

Office Product: OKIDATA microline ml421 9pin wide 570cps parallel USB 120v - Okidata

Single Detail Page Misc: Okidata Genuine ML421

CE: Okidata 420/421/490/491 - Black 42377801 Ribbon New 6 Pack - Data Products

CE: 62306802 LD610TT Color - Thermal Transfer - 4 Ips (100 mm/sec) - Serial, USB - Okidata

CE: SoDo Tek TM High Speed USB Cable For OKI OKIDATA Microline 421 Printer - SoDo Tek

CE: Okidata 70030601 OKI - Printer pull tractor - for Microline 321, 390, 391, 421n, 490, 491, 491n - Okidata

Single Detail Page Misc: Okidata Genuine ML421 Black Serial

CE: InkGrabber ? Okidata 42377801 Compatible Ribbons Cartridges - Compatible With: Microline 420, Microline 421, Microline 490, Microline 491, Microline 720, Microline 721, Microline 790, Microline 791 - InkGrabber

Office Product: 3 Pack 42377801 Ribbon, Black by OKIDATA (Catalog Category: Computer/Supplies & Data Storage / Ribbons) - OKIDATA

CE: SoDo Tek TM High Speed USB Cable For OKI OKIDATA Microline 421n Printer - SoDo Tek

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Okidata 421 Popular Q&A

Q: Specs for an Okidata Microline 421 Printer.
A: The print head of the Okidata Microline 421 is designed as a nine-pin SIDM device capable of producing up to 570 characters per second. The print head has a 400... Read More »

Q: How to repair/troubleshoot Okidata 421?
A: When using this website please use common sense. The information provided on this site is intended for your general knowledge only and is not a substitute for p... Read More »

Q: Blinking light, no power, error, how to fix these problems for Ok...
A: When using this website please use common sense. The information provided on this site is intended for your general knowledge only and is not a substitute for p... Read More »

Q: Manual/guide in pdf for Okidata 421?
A: When using this website please use common sense. The information provided on this site is intended for your general knowledge only and is not a substitute for p... Read More »

Okidata 421 Helpful Resources

OKI | Printers | Impact | MICROLINE 420 and 421 | Overview
OKI impact printers MICROLINE 420 and 421 overview.