Laser Tek Services&reg; 2 Pack Canon 137 / 9435B001 Compatible Replacement Toner Cartridges for the Canon ImageClass MF212w, MF216n, MF227dw, MF229dw. Package contains 2 Black 9435B001 (137) Premium Compatible Replacement Toner Cartridges For use in the following printer models: Canon ImageClass MF212w, MF216n, MF227dw, MF229dw Page Yield: 2,400 pages @ 5% page coverage Product Comes with a 1 year 100% Satisfaction Guarantee! Laser Tek Services offers free technical support for any questions you may have. Manufactured by ISO and STMC certified facility.| The Use of Laser Tek Services compatible products will not void your printers warranty.