Review on LxTek Compatible Canon 137 Toner Cartridge Replacement - 4-Pack for ImageClass Printers (Black) - Ideal for MF236n, MF247dw, D570, MF227DW, MF229DW, LBP151dw, MF217W, MF216N, MF249dw, MF232w by John Murphy

I love my printer and have always bought a Canon toner cartridge, but this time I succumbed to the temptation of cheaper and more cartridges. NEVER AGAIN! I put in the first cartridge and printing started normally but became very easy straight away. I took it out to see if it was empty and tried to pull out a few more sheets but found it was still completely full. I shook it, and what a mess! The cartridge cracked and the toner went everywhere!