Lexmark 51b1000 Unison Toner, 2,500 Page-Yield, Black

The Lexmark 51B1000 is a black Unison return-program toner cartridge rated for up to 2,500 standard pages, suited to owners of compatible Lexmark MS/MX317, 417, 517, or 617 series printers who need a standard-yield replacement.

Recommended For

• Owners of a Lexmark MS317dn, MS417dn, MS517dn, MS617dn, MX317dn, MX417de, MX517de, or MX617de who need a genuine black toner cartridge for that printer.
• Small offices and home offices that mainly print black-and-white text, forms, and everyday business documents on a compatible Lexmark laser printer.
• Users with moderate print needs who prefer a standard-yield cartridge with a lower upfront price than Lexmark’s high-yield options for select compatible printers.
• Organizations that want to use Lexmark’s Return Program and send the empty cartridge back to Lexmark for collection.

Real-World Use Scenarios

• In a small office using a compatible Lexmark MS or MX printer, print routine black-and-white forms, invoices, and correspondence with this cartridge; its 2,500-page ISO-rated yield helps estimate when a replacement may be needed, though actual yield varies with printing conditions.
• When a compatible printer runs low during regular monochrome document work, replace the cartridge to resume printing; Lexmark describes it as a standard-yield cartridge for select MS and MX models.
• For a home office that prints occasional black-and-white work documents, use the cartridge in a compatible printer for text and other monochrome pages; the standard-yield format suits users who do not need a higher-yield cartridge.
• In a shared workplace printer, use the 51B1000 as a replacement supply for compatible models including the MS317dn, MS417dn, MS517dn, MS617dn, MX317dn, MX417de, MX517de, and MX617de; check the printer model before ordering.
• After using the return-program cartridge, send the empty cartridge back through Lexmark’s collection program rather than treating it as a standard refillable supply.

Spec Summary