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Two rectangular black toner cartridges side by side in clear plastic wrap

eSquareOne

eSquareOne S1-BR-TN850-02 toner cartridge 2-pack black 8000 pages

SKU CH-29B6-Y8VM0

Two black high-yield toner cartridges replace Brother TN850 and TN820 for compatible DCP, HL and MFC printers, each rated at 8000 pages

  • Cartridges included2 Pack
  • Ink or toner colorBlack
  • Estimated page yield8000 Pages
  • Print coverage5%
  • VariantTN850
  • Operating humidity range20 to 80% RH
  • Two high-yield black cartridges deliver up to 8000 pages each at 5% coverage
  • Replaces Brother TN850 and TN820 originals for direct drop-in compatibility
  • Works across a wide range of Brother DCP, HL and MFC laser printers
  • Engineered under ISO 9001 and ISO 14001 quality and environmental management systems
  • Operates reliably from 10 to 32.5 °C and 20 to 80 % relative humidity

Two-pack compatible toner for Brother TN850 TN820

This eSquareOne set contains two black toner cartridges built to replace Brother TN850 and TN820 originals. Each cartridge is rated for approximately 8000 pages at five percent coverage. The pack suits offices and workgroups that use the listed Brother mono laser printers and want a lower-cost supply option.

Suits owners of listed Brother mono lasers needing

Buyers with Brother DCP-L5500DN, HL-L5200DW, MFC-L5700DW or any other model named in the compatibility list can use these cartridges. Shops that need colour output, printers outside the listed series, or original Brother supplies should look elsewhere.

Yield of 8000 pages per cartridge at five percent

The key specification is the rated yield of 8000 pages per unit measured at five percent page coverage. If your print volume or coverage pattern differs significantly, actual page counts will vary.

How it compares

Measured against everything we stock in Compatible Laser Toner, at today’s prices. Recalculated every night.

Price $36.99
Cheaper than about 63% of the 15,190 comparable items (median $47.99).

Specifications

Product
Brand nameeSquareOne
Model nameS1-BR-TN850-02
Ink or toner colorBlack
Product typeCompatible
Performance
Estimated page yield8000 Pages
Print coverage5%
Compatibility
Replaces brandBrother
Replacement forBrother TN850 TN820
In the box
Cartridges included2 Pack
Environment & compliance
Operating humidity range20 to 80% RH
Storage humidity range20 to 80% RH
Operating temperature range10 to 32.5 °C
Storage temperature range-20 to 40 °C
More details
VariantTN850

Questions about this item

Will these eSquareOne S1-BR-TN850-02 cartridges work in my Brother HL-L5200DW alongside the original drum unit?

Yes, each cartridge replaces Brother TN850 and TN820 and is listed for the HL-L5200DW, so it fits the existing drum without modification.

How can I verify the 8000-page yield per cartridge is being met after installation?

Print until the printer signals low toner, then check the page counter; at 5% coverage each cartridge should deliver roughly 8000 pages.

Does the 2-pack include any installation guides or do I need to buy a separate drum unit?

The box contains two black toner cartridges and installation notes; a drum unit is not included and must be purchased separately if yours is worn.

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