How can I check the drum life/consumption level of canon c-5185?

Hi, first you need to activate in the service mode the drum life notification
in the copier control panel:
press additional function
press 2 and 8 and the same time
press additional function
service mode should appear in the screen if doesnt try again
select copier
select option
select body
select the item DLIFE-SW
press 1 in the control panel
press ok in the lower corner
press reset to finish service mode
turn the machine off from the main switch for a few seconds (5 seconds) and then on
once the machine is fully operating go to device status tab and you will see in there the level of toners and drums