Advanced Guide > Troubleshooting > If You Cannot Resolve the ProblemIf You Cannot Resolve the ProblemIf you cannot resolve the problem with any of the workarounds in this chapter, please contact the seller ofthe machine or the service center.Canon support staff are trained to be able to provide technical support to satisfy customers.CautionIf the machine emits any unusual sound, smoke, or odor, turn it off immediately. Unplug the powercord from the outlet and contact the seller or the service center. Never attempt to repair ordisassemble the machine yourself.Attempts by customers to repair or take apart the machine will invalidate any warranty regardless ofwhether the warranty has expired.Before contacting the service center, confirm the following:Product name:* Your machine's name is located on the front cover of the setup manual.Serial number: please refer to the setup manualDetails of the problemWhat you tried to solve the problem, and what happenedPage topPage 783 of 817 pagesIf You Cannot Resolve the Problem