134 Chapter 11TroubleshootingIf You Cannot Resolve the ProblemIf you cannot resolve the problem with any of the workarounds in this chapter, please contact theCanon Customer Care Center.Canon support staff are trained to be able to provide technical support to satisfy customers.Before contacting the Canon Customer Care Center, confirm the following:z Product name: PIXMA MP500z Serial number: written on label inside machinez Details of the problemz What you tried to solve the problem, and what happenedCaution Attempts by customers to repair or take apart the machine will invalidate anywarranty regardless of whether the warranty has expired.Note If the machine emits any unusual sound, smoke, or odor, turn it off immediately.Unplug the power cord from the outlet and contact the Canon Customer CareCenter. Never attempt to repair or disassemble the machine yourself.