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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

  • Cartridges included6 Pack
  • Ink or toner colorBlack
  • Estimated page yield8000 Pages
  • Print coverage5%
  • VariantTN850
  • Operating humidity range20 to 80% RH
  • 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.

How it compares

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

Price $111.99
Pricier than about 82% of the 15,190 comparable items (median $47.99).

Specifications

Product
Brand nameeSquareOne
Model nameS1-BR-TN850-06
Ink or toner colorBlack
Product typeCompatible
Performance
Estimated page yield8000 Pages
Print coverage5%
Compatibility
Replaces brandBrother
Replacement forBrother TN850 TN820
In the box
Cartridges included6 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

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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