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 yourselfIf 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 (MF729Cx / MF628Cw / MF621Cn)
Dealer where you purchased the machine
Details about your problem (such as what you did and what happened as a result)
Serial number (eight alphanumeric characters long, found on the label on the back side of the machine)
|
MF729Cx
|
|
MF628Cw / MF621Cn
|
 |
|
 |
 Checking the serial number from
 ( )Press
(), and tap <Check Device Configuration>. Checking the serial number from the operation panel
Press
  Tap <Device Status> <Serial Number>. |