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Four black printer ribbon cartridges in a multipack

LD Products

LD Products Printer Ribbon 42377801 Black 4-Multipack

SKU CH-YWF9-4042R

Four black ribbon cartridges compatible with Okidata Microline 420, 421, 490, 491, 720, 721, 790 and 791 printers

  • Four-pack lowers cost per print
  • Black ribbon produces crisp monochrome output
  • Works with Okidata Microline 420, 421, 490, 491, 720, 721, 790, 791
  • Replaces OEM part 42377801 directly
  • New condition ensures reliable performance from first page

Compatible black ribbon four-pack

This four-pack of LD Products black ribbons replaces the Okidata 42377801 cartridge. It fits OKI MICROLINE printers including the 420, 421, 490, 491, 720, 721, 790 and 791 series with their n variants. The ribbons are new and intended for standard impact printing tasks.

Suited for high-volume impact users

Offices running multiple OKI MICROLINE machines will appreciate the cost saving of a four-pack. Buyers who need colour output or thermal-transfer printing should look elsewhere because these ribbons are single-colour impact media only.

Four cartridges for extended runs

Each cartridge handles typical mono printing workloads on the listed models. The pack provides enough ribbon for long print runs before a change is needed. Very heavy continuous printing will still require more frequent replacement than lighter duty cycles.

Highlights

  • Four-pack lowers cost per print
  • Black ribbon produces crisp monochrome output
  • Works with Okidata Microline 420, 421, 490, 491, 720, 721, 790, 791
  • Replaces OEM part 42377801 directly
  • New condition ensures reliable performance from first page

Specifications

BrandLD Products

Questions about this item

Which Okidata MICROLINE printers will the 42377801 ribbon multipack fit?

The four-pack fits Okidata MICROLINE 420, 420 n, 421, 421 n, 490, 490 n, 491, 491 n, 720, 721, 790 and 791 printers purchased in the United States or Canada.

Will these ribbons work in an older Okidata MICROLINE 420 that I still use?

Yes, the 42377801 ribbon is listed as compatible with the MICROLINE 420 and 420 n models, so it will work in that printer.

How can I confirm the ribbon is printing correctly after I install it?

Run a test page or self-test from the printer control panel; clear, even black text across the page shows the ribbon is seated and feeding properly.

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