DIRECT REPLACEMENT USB VERSION ML420 / ML421

OKI 44588699 Main Logic Board – Microline ML420 / ML421 – USB Version

This is a direct-replacement OKI main logic control board, part number 44588699, pulled for the Microline ML420 and ML421 series dot matrix printers. 44588699 is a verified, indexed part number in parts catalogs. The board has an integrated USB port alongside a parallel port. Please check your broken board's part number against 44588699 before buying.

✔ MPN 44588699
✔ For OKI Microline ML420 / ML421
✔ Direct-replacement main logic board
✔ Integrated USB port
✔ Parallel port
⚠ Match part number before buying
Part Number
44588699
Fits
ML420 / ML421
Connection
USB / Parallel
Support
Reply in 24 Hrs

Item Specifics

Brand OKI / Okidata
MPN 44588699
Device type Main logic board
Connection type USB / Parallel
Compatible models OKI Microline ML420, ML421

Item Description

This is a direct-replacement main logic control board, pulled for the OKI Microline ML420 and ML421 series dot matrix printers.

  • Part number 44588699 is a verified, indexed part number in parts catalogs.
  • It's an official match for the OKI Microline 420 and 421 series.
  • It has an integrated native USB port alongside a parallel port.

⚠ Before You Buy

Please check the physical part number on your broken board against 44588699 before buying. A matching number makes sure it's a perfect drop-in fit for your printer.

✔ What's Included

  • 1 x OKI main logic board, part number 44588699 (as pictured)

Please Note

The photos are of the actual item. Only the items listed and shown in the photos are included.

Shipping

Handling time is 1–2 business days. Ships by standard shipping, with tracking.

Customer Service

We respond to messages within 24 hours.

Returns

See the return policy section of this listing.