If You Cannot Solve a Problem
If you cannot solve the problem after having referred to the information in this chapter, contact your local authorized Canon dealer or the Canon help line.
Please have the following information ready when contacting the Canon Customer Care Center:
Product name (imageCLASS MF4890dw/MF4870dn/MF4820d/MF4750/MF4720w)
Serial number (a character string of 3 letters and a 5-digit number; located on the rating label on the rear side of the machine.)
MF4890dw/MF4870dn/MF4820d |
MF4750/MF4720w |
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Place of purchase
Nature of the problem
Steps you have taken to solve the problem and the results
 WARNING |
If the machine makes strange noises or emits smoke or an odd odor:Turn OFF the power switch immediately, disconnect the power cord, and contact the Canon Customer Care Center. Do not attempt to disassemble or repair the machine yourself.
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IMPORTANT
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If you attempt to fix the machine yourself:It may void the limited warranty.
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