Canon is very professional company which also deal in printers and you bought also .Now you are searching for official canon printer
driver l11121e but have no idea where from download it.
No issue i can suggest you genuine site Canon.com/ijsetup which is official of canon org .This is the site where from you can
easily find driver for l11121e model .First of all you have to tap on red button on site and then next search your printer model name
click to go. After that you get any issue so immediately contact to the support team of canon.
Read more from here :-
https://comijsetupcanon.com
https://setupcanonij.com
https://sites.google.com/a/printijhelpcanon.com/canoncomijsetupdriver/
https://sites.google.com/a/printijhelpcanon.com/ij-manual-canon-setup/