Genuine Sharp Toners which is the backbones of some photocopying machine should be made readily available but that is not the case in Lagos where one cannot differentiate between original and fake toners when a purchase is being made due to so many factors which include same price and packaging.
When purchasing Sharp Toners, one should be careful with the product being purchased.

Most often now, customers can hardly identify original Sharp toners especially in Lagos due to influx of fake and adulterated toners from China, which packs seems very much like the original one.

To identify genuine Sharp toner, the following criteria needs to be considered,

(1) The quantity of toner powder in the cartridge is 80% while that of fake is 30%.

(2) The copy yield of genuine MX 236 AT Toner is ten thousand copies while that of the fake is usualy not more than three thousand copies.

To ensure that the toner you are buying is genuine, we advise that you purchase your toners from trusted source like Axins Nigeria Limited

Source:http://www.axinsltd.com.ng/identifying-genuine-sharp-tonersmx-236at/