Lexmark 436 - Manual (Page 210)

Contacting Customer Support
When you call Customer Support, describe the problem you are experiencing, the message on the display, and the
troubleshooting steps you have already taken to find a solution.
You need to know your printer model type and serial number. For more information, see the label on the inside of the
front door of the printer. The serial number is also listed on the menu settings page.
In the U.S. or Canada, call (1
‑800‑539‑6275). For other countries/regions, visit the Lexmark Web site at
www.lexmark.com.
Troubleshooting 210