When a Problem Cannot Be Solved
If you cannot solve a problem by referring to the information in this chapter, contact your local authorized Canon
dealer or the Canon help line.
Do not disassemble or repair the machine yourself
If you disassemble or repair the machine yourself, it may not be covered by warranty.
When Contacting Canon
When contacting us, have the following information ready:
Product name (LBP312x)
Dealer where you purchased the machine
Details about your problem (such as what you did, what happened as a result, and displayed messages)
Serial number (10 alphanumeric characters long, found on the label on the back side of the machine)
Checking the serial number from the operation panel
You can also check by