> Problems Persist > When a Problem Cannot Be Solved
413S-04W

When a Problem Cannot Be Solved

Contact your local authorized Canon dealer or the Canon help line.
IMPORTANT
Do not disassemble or repair the machine yourself
If you disassemble or repair the machine yourself, it may not be covered by warranty.
Customer Support (U.S.A.)
If you cannot solve a problem by referring to the information in this chapter, contact the Canon Customer Care Center at 1-800-OK-CANON, Monday through Friday, between 8:00 A.M. and 8:00 P.M. EST. On-line support is available 24 hours a day at http://www.canontechsupport.com.
Customer Support (Canada)
Canon Canada Inc., offers a full range of customer technical support options*:
To perform step-by-step troubleshooting, send an e-mail to technical support, download drivers or support documents, or view answers to frequently asked questions, visit http://www.canon.ca/.
Free live technical support is available from 9 A.M. to 8 P.M. EST, Monday through Friday (excluding holidays), for products still under warranty 1-800-OK-CANON.
To find the location of the authorized service facility nearest you, visit http://www.canon.ca/ or call 1-800-OK-CANON.
If the problem cannot be corrected via these technical support options, repair options are available from the technical support personnel via the Web site at http://www.canon.ca/.
*Available support options are subject to change without notice.

When Contacting Canon

When contacting us, have the following information ready:
Product name (MF746Cdw / MF745Cdw / MF743Cdw / MF741Cdw / MF644Cdw / MF642Cdw / MF641Cw)
Dealer where you purchased the machine
Details about your problem (such as what you did and what happened as a result)
Serial number (found on the label on the back side of the machine)
MF746Cdw / MF745Cdw / MF743Cdw / MF741Cdw
MF644Cdw / MF642Cdw
MF641Cw
NOTE
Checking the serial number from the operation panel
Select <Status Monitor>  <Device Information>  <Serial Number>.