We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular toner cartridge with matte finish and green pull tab

Lexmark

Lexmark 55B1X00 Unison Original Toner Cartridge Black Extra High Yield 20000 Pages

SKU CH-BMNY-EPPD5 MPN 55B1X00

Black toner cartridge yields 20,000 pages for Lexmark MS431 and MX431 printers

  • Extra high yield prints 20000 pages before replacement
  • Unison toner formulation produces consistently sharp black output
  • Shake-free print system ensures smooth reliable operation
  • Return program cartridge supports recycling and remanufacturing
  • Made and supported in the USA by Print.Save.Repeat.

Extra High Yield Black Toner

The Lexmark 55B1X00 is an original Unison toner cartridge rated for 20,000 pages at five percent coverage. It fits the MS431dn, MS431dw, MX431adn and MX431adw laser printers and is supplied new as part of the Lexmark Return Program.

Shake-free print system reliability

The cartridge uses Lexmark's shake-free print system to maintain consistent output during long print runs without the density fluctuations that can appear in short bursts. Its Unison formulation is engineered for long-life system reliability so sustained workloads stay sharp from the first page to the last.

Return Program single-use constraint

This cartridge is sold under the Lexmark Return Program, which requires the customer to use it once and return the empty unit to Lexmark for recycling or remanufacturing. The licence does not permit refilling or third-party reuse, so buyers who need a cartridge they can keep or refill should choose a different SKU.

Highlights

  • Extra high yield prints 20000 pages before replacement
  • Unison toner formulation produces consistently sharp black output
  • Shake-free print system ensures smooth reliable operation
  • Return program cartridge supports recycling and remanufacturing
  • Made and supported in the USA by Print.Save.Repeat.

Specifications

BrandLEXMARK
Shipping weight1.36 kg
Package size375 × 170 × 160 mm

Questions about this item

Does the 55B1X00 cartridge require extra cooling or power when the printer runs all day?

The toner itself adds no heat or power draw; it operates passively inside compatible Lexmark MS431dn, MS431dw, MX431adn and MX431adw printers.

Which printer models must I already own for the 55B1X00 to work?

This cartridge fits Lexmark MS431dn, MS431dw, MX431adn and MX431adw printers only.

Will the 55B1X00 function in an older Lexmark machine I keep alongside the new one?

It is engineered for the MS431 and MX431 series; older models are not supported.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.