Forgotten your login username and password for CANON copier/printer?
Let's follow this guide helps to reset the login by yourself.
Let's impress your employer/supervisor ^-^

1) Enter Service mode by pressing the "Additional Functions" Button
2) Then press "2" and "8" buttons together
3) Next, press "Additional Functions" button again.
You will see a screen display that you "may" never seen before.
4) Go to Copier > Function > Clear and select PWD-CLR, then Hit "ok"
5) Next, hit the yellow reset button a few times to get back to the regular screen, and you should be able to get into the system settings to change IP config or other settings.
Depend on how it was configured, you may have to restart the machine for the reset to take effect.
Also, once you change the IP settings, do another restart and wait for about 3minutes for the machine to get on the network.
Ultimately, you have done a great job...
Keep it as secret...
Else you may get scolded... =)