LEXMARK 505HE · BLACK HIGH-YIELD TONER
Corporate toner, with the conditions made clear.
Lexmark 505HE, part 50F5H0E, supplies black Unison toner for the exact compatible printer models listed below. Its 5,000-page reference and Corporate Return Program conditions give you two checks to make alongside the printer model before a replacement.

EXACT SUPPLY IDENTITY
The full part number makes the distinction.
505HE is a black Unison toner cartridge for compatible monochrome Lexmark laser printers. The complete ordering code is 50F5H0E. This is the Corporate Return Program variant; keep the final E when checking the replacement.
YIELD IN CONTEXT
Plan around a test reference, not a fixed allowance.
The declared yield is up to 5,000 standard pages in continuous one-sided printing under ISO/IEC 19752. Actual documents and operating conditions affect the result. Lexmark also notes that prolonged printing at very low coverage can reduce actual yield.
MATCH THE PRINTER
Check the exact model and supply region.
The listed devices include MS310d/dn, MS410d/dn, MS510dn and MS610de/dn/dte. Lexmark also lists MS415dn for this Corporate part. Supplies are region-specific; match the printer and its region before ordering.
RETURN PROGRAM TERMS
Know the conditions before the first use.
This cartridge carries a single-use licence and must be returned only to Lexmark for remanufacturing or recycling. It stops after a defined amount of toner has been delivered, with some toner remaining. Lexmark also specifies automatic printer-memory updates intended to restrict counterfeit or unauthorised cartridges.
REPLACEMENT AND HANDLING
Keep toner and imaging-unit replacements separate.
The toner cartridge is a separate supply from the printer’s imaging unit. Follow the exact printer’s replacement instructions and return the used cartridge through the appropriate Lexmark collection arrangement. Unison is the manufacturer’s shake-free toner system; follow the installation guide rather than improvising a refill.
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