The serial number is located on the back of the printer on a label. The serial number is on the left side of the label next to "No."
The serial number starts with 4 letters and is followed by 6 numbers.
![](/library/CANON/CITS_TECH_SUPPORT/BISG/DPIS/LBP1333C/LBP1333C.gif)
You can also check the serial number onthe operation panel. Press Status Monitor then Device Information and finally Serial Number.