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Six black toner cartridges in a rectangular cardboard box

eSquareOne

eSquareOne S1-BR-TN850-06 toner cartridge 6-pack black 8000 pages

SKU CH-D0HT-JS6X0

Six-pack of compatible black toner cartridges replacing Brother TN850 and TN820, each yielding 8000 pages at 5% coverage

  • Cartridge Quantity6 Pack
  • Cartridge ColorBlack
  • Replacement BrandBrother
  • Replacement ModelBrother TN850 TN820
  • Compatible ProductsBrother DCP-L5500DN DCP-L5600DN DCP-L5650DN HL-L5000D HL-L50
  • Approximate Page Yield8000 Pages
  • High-yield 8000-page output per cartridge at 5% coverage
  • Six black cartridges reduce reorder frequency for busy offices
  • Direct replacement for Brother TN850 and TN820 originals
  • Fits a wide range of Brother DCP HL and MFC laser printers
  • Engineered under ISO 9001 and ISO 14001 quality systems

High-yield black toner six-pack

This pack contains six eSquareOne black toner cartridges built to replace Brother TN850 and TN820 originals. Each unit is rated for approximately 8000 pages at five percent coverage. The cartridges are new and engineered to match OEM yield and reliability standards.

Offices that print high volumes in monochrome

Suits workgroups using the listed Brother DCP, HL and MFC laser printers that need a low cost per page. Not suited for colour printing, for printers outside the compatibility list, or for users who require original Brother consumables.

8000-page yield per cartridge at five percent

This figure determines how often replacements are needed and the cost per printed page. Operating range is ten to 32.5 degrees Celsius and twenty to eighty percent relative humidity.

Highlights

  • High-yield 8000-page output per cartridge at 5% coverage
  • Six black cartridges reduce reorder frequency for busy offices
  • Direct replacement for Brother TN850 and TN820 originals
  • Fits a wide range of Brother DCP HL and MFC laser printers
  • Engineered under ISO 9001 and ISO 14001 quality systems

Specifications

BrandeSquareOne
ModelS1-BR-TN850-06
Cartridge Quantity6 Pack
Cartridge ColorBlack
Replacement BrandBrother
Replacement ModelBrother TN850 TN820
Compatible ProductsBrother DCP-L5500DN DCP-L5600DN DCP-L5650DN HL-L5000D HL-L5000DN HL-L5200DW HL-L5200DWT HL-L6200DW HL-L6200DWT HL-L6250DW HL-L6300DW HL-L6400DW HL-L6400DWT MFC-L5700DW MFC-L5800DW MFC-L5850DW MFC-L5900DW MFC-L6700DW MFC-L6750DW MFC-L6800DW MFC-L6900DW
Approximate Page Yield8000 Pages
Coverage5%
TypeCompatible
FeaturesThis is an eSquareOne alternative replacement for OEM product, replaces Brother TN850 TN820 Black toner cartridges. eSquareOne Toner cartridges are engineered to meet the highest standard of quality, yield and reliability.
OptionTN850
Operating Humidity20 to 80% RH
Storage Humidity20 to 80% RH
Operating Temperature10 to 32.5°C
Storage Temperature-20 to 40°C

Questions about this item

How do I install the eSquareOne TN850 cartridge in my Brother HL-L6200DW, and what step do people often miss?

Open the front cover, pull out the drum unit, press the green lock lever to release the old toner, unpack the new cartridge, gently rock it five or six times, pull the sealing tape straight out, slide the cartridge in until it clicks, then reinsert the drum unit and close the cover.

What maintenance or replacement will this 6-pack need after the toner runs out?

Each cartridge yields about 8000 pages at 5 % coverage; when print fades you replace the empty cartridge. The separate drum unit (Brother DR820) typically lasts 30 000 to 50 000 pages and will need replacement later.

What limit appears first during long print runs with these cartridges?

The printer’s operating range is 10 to 32.5 °C and 20 to 80 % RH; sustained high-volume printing can push internal temperature above that range, causing the printer to pause for cooling before the toner itself degrades.

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