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Four black toner cartridges in white and blue packaging side by side

eSquareOne

eSquareOne S1-BR-TN420-04 toner cartridge 4-pack black high yield 2600 pages

SKU CH-WJRZ-1XNCG

Four-pack of compatible black toner cartridges replaces Brother TN420 and TN450, yielding 2600 pages each for a wide range of DCP, HL, MFC and IntelliFax printers

  • Cartridge Quantity4 Pack
  • Cartridge ColorBlack
  • Replacement BrandBrother
  • Replacement ModelBrother TN420 TN450
  • Compatible ProductsBrother DCP-2240D DCP-2270DW DCP-7055 DCP-7057 DCP-7060D DCP
  • Approximate Page Yield2600 Pages
  • High-yield output with 2600 pages per cartridge at 5% coverage
  • Four black cartridges replace Brother TN420 and TN450 originals
  • Compatible with Brother DCP and HL series printers including models 2240D 2270DW 7055 7057 7060D 7065DN 7070DW 2130 2132
  • Operates reliably from 10 to 32.5°C and 20 to 80% humidity
  • Engineered to meet quality and reliability standards for consistent prints

Four-pack replacement for Brother TN420/450

This four-pack of black toner cartridges replaces the Brother TN420 and TN450 originals. Each unit is an aftermarket compatible built to match the OEM form factor and page count. The set suits offices and home users who print regularly on supported Brother laser printers and want a ready supply of black toner.

Storage and operating ranges

Cartridges operate between 10 and 32.5 °C at 20 to 80 % relative humidity. They can be stored from -20 to 40 °C within the same humidity band. These ranges cover typical indoor environments without special climate control.

Yield of 2600 pages at 5 % coverage

Every cartridge yields approximately 2600 pages when printed at the industry-standard 5 % coverage. Buyers whose documents routinely exceed that coverage will see fewer pages per cartridge and should plan reorders accordingly.

Highlights

  • High-yield output with 2600 pages per cartridge at 5% coverage
  • Four black cartridges replace Brother TN420 and TN450 originals
  • Compatible with Brother DCP and HL series printers including models 2240D 2270DW 7055 7057 7060D 7065DN 7070DW 2130 2132
  • Operates reliably from 10 to 32.5°C and 20 to 80% humidity
  • Engineered to meet quality and reliability standards for consistent prints

Specifications

BrandeSquareOne
ModelS1-BR-TN420-04
Cartridge Quantity4 Pack
Cartridge ColorBlack
Replacement BrandBrother
Replacement ModelBrother TN420 TN450
Compatible ProductsBrother DCP-2240D DCP-2270DW DCP-7055 DCP-7057 DCP-7060D DCP-7065DN DCP-7070DW HL-2130 HL-2132 HL-2220 HL-2230 HL-2230D HL-2240 HL-2240D HL-2242 HL-2242D HL-2250 HL-2250DN HL-2270 HL-2270DW HL-2280 HL-2280DW INTELLIFAX 2840 2940 MFC-7240 MFC-7360 MFC-7360N MFC-7460 MFC-7460DN MFC-7470D MFC-7860 MFC-7860DW
Approximate Page Yield2600 Pages
Coverage5%
TypeCompatible
FeaturesThis is an eSquareOne alternative replacement for OEM product, replaces Brother TN420 TN450 Black toner cartridges. eSquareOne Toner cartridges are engineered to meet the highest standard of quality, yield and reliability.
OptionTN420
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 S1-BR-TN420-04 cartridge in my Brother HL-2270DW, 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 cartridge, unpack the new one, gently rock it five or six times to distribute toner, pull the sealing tape straight out, slide the cartridge into the drum until it clicks, then reinsert the drum and close the cover.

What part will need replacement after using these four 2600-page cartridges?

The separate drum unit (Brother DR-420) will eventually need replacement after several toner cycles; the printer will signal when print quality drops.

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

The operating temperature range tops out at 32.5 °C, so extended high-volume printing in a warm room can push the cartridge past its rated thermal limit before the 2600-page yield is reached.

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