Dell 3115cn Color Laser Printer - Manual (Page 408)

Contacting Service
When you call for printer service, be prepared to describe the problem you are experiencing or the error
message on the display.
You need to know your printer model type and serial number. See the label on the back of the multifunction
printer near the controller card for this information.
Troubleshooting Guide
Configuration of your printer instructions
User Settings
Setup Menus