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Lexmark black toner cartridge in rectangular box

Lexmark

Lexmark LEX51B1000 Unison Toner Black 2,500 Page-Yield toner cartridges (genuine brands)

SKU CH-GN6W-3FKZ6 MPN LEX51B1000

Genuine Lexmark black Unison toner cartridge yields 2,500 pages and fits MS317dn, MS417dn, MS517dn, MS617dn, MX317dn, MX417de, MX517de and MX617de printers

  • Cartridge ColorBlack
  • Option51B1000
  • Genuine Lexmark Unison toner delivers consistent black print quality from first page to last
  • 2,500-page yield measured under ISO/IEC 19752 for reliable output planning
  • Shake-free print system eliminates toner agitation before installation
  • Return-program cartridge works with Lexmark MS and MX series laser printers
  • Easy-install design reduces downtime during cartridge replacement

Genuine Lexmark Unison Toner Cartridge

The Lexmark LEX51B1000 is an original black toner cartridge built for Lexmark laser printers. It uses Unison toner technology to deliver consistent image quality from the first page to the last. Designed for the MS317dn, MS417dn, MS517dn, MS617dn, MX317dn, MX417de, MX517de and MX617de models, it installs easily and supports the Lexmark Cartridge Collection Program.

2,500-Page Yield Measured to ISO/IEC 19752

Rated at 2,500 standard pages in one-sided simplex mode, the yield follows the ISO/IEC 19752 test methodology. That capacity suits regular office printing and small workgroup volumes. Heavy daily output will deplete the cartridge faster, so high-volume environments should plan for more frequent replacements.

Return-Program Cartridge Replaces Standard

This return-program cartridge replaces a standard single-use toner for the same printers. The jump is worth it when you want lower upfront cost and a managed recycling route through Lexmark. It is not for buyers who need a high-yield 51B1H00 cartridge or a non-return licence for refill or remanufacture.

Highlights

  • Genuine Lexmark Unison toner delivers consistent black print quality from first page to last
  • 2,500-page yield measured under ISO/IEC 19752 for reliable output planning
  • Shake-free print system eliminates toner agitation before installation
  • Return-program cartridge works with Lexmark MS and MX series laser printers
  • Easy-install design reduces downtime during cartridge replacement

Specifications

BrandLEXMARK
ModelLEX51B1000
Cartridge ColorBlack
Option51B1000
Shipping weight0.91 kg
Package size381 × 254 × 152 mm

Questions about this item

Will the Lexmark LEX51B1000 Unison Toner work in my older Lexmark MS317dn printer?

Yes, the cartridge is listed for use with the Lexmark MS317dn, MS417dn, MS517dn, MS617dn, MX317dn, MX417de, MX517de and MX617de models.

How can I verify the cartridge is delivering its rated 2,500-page yield after installation?

The declared yield follows ISO/IEC 19752 in one-sided simplex mode; actual page count will vary with page coverage and print job size.

Does the box include any drums, waste containers or maintenance kits, or must I order them separately?

The package contains the return-program black toner cartridge only; drums, waste containers and maintenance kits are sold separately.

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