Lowest Price Brother TN-115BK High Yield Black Toner Cartridge for Brother HL4040CN,HL4070CDW Series

I just purchased the Brother printer MFC-9840CDW. While searching around for toners, I came up on this review (tip) from another website:

"Toner is OEM and an excellent price. To those who don't understand printer technology:

1. Yes, color toners are used even printing black UNLESS you set on "Mono." You can change properties to color print at will.

2. ALL printers rate pages at 5% coverage or so. If you frequenly print full page color, you will suck toner very fast. Sorry== check the specs before buying any printer. "Get more detail about Brother TN-115BK High Yield Black Toner Cartridge for Brother HL4040CN,HL4070CDW Series.