Canon PIXMA iP4820 On-Screen Manual - Page 434

If You Cannot Resolve the Problem Page 434 of 468 pages Advanced Guide > Troubleshooting > If You Cannot Resolve the Problem U151 If You Cannot Resolve the Problem If you cannot resolve the problem with any of the workarounds in this chapter, please contact the seller of the printer or the service center. Canon support staff are trained to be able to provide technical support to satisfy customers. Caution If the printer emits any unusual sound, smoke, or odor, turn it off immediately. Unplug the power cord from the outlet and contact the seller or the service center. Never attempt to repair or disassemble the printer yourself. Attempts by customers to repair or take apart the printer will invalidate any warranty regardless of whether the warranty has expired. Before contacting the service center, confirm the following: Product name: * Your printer's name is located on the front cover of the setup manual. Serial number: please refer to the setup manual Details of the problem What you tried to solve the problem, and what happened Page top