eSquareOne S1-BR-TN336BK-B2 Black Toner Cartridge 2-Pack (4000 pages)

Compatible Black Toner 2-Pack

This two-pack of black toner cartridges replaces Brother TN336BK and TN331BK supplies. It fits the HL-L8250CDN, HL-L8350CDW, HL-L8350CDWT, MFC-L8600CDW and MFC-L8850CD printers. Each cartridge is rated for 4000 pages at 5% coverage. Offices needing high-volume monochrome output can install both units for extended print runs.

Sustained Print Consistency

The cartridges are engineered to maintain yield and reliability across the full 4000-page rating rather than only in short bursts. Quality-control guidelines and ISO 9001 and ISO 14001 certified processes support consistent density from the first page to the last. Large batch jobs on the listed Brother models therefore finish without unexpected fade or streak defects.

Operating Conditions and Efficiency

Normal use stays within an operating temperature range of 10 to 32.5°C and 20 to 80% relative humidity. Storage tolerates -20 to 40°C at the same humidity band. The compatible design draws power only during the printer’s standard imaging cycle, adding no extra thermal load or acoustic noise beyond the host device’s normal profile.