Lexmark 840 Series - Manual (Page 29)

Troubleshooting
Setup troubleshooting
Power light is not lit
Make sure you have disconnected the power supply cord from the wall outlet and then from the printer.
1 Plug the cord all the way into the power supply on the printer.
2 Plug the cord into an electrical outlet that other electrical devices have been using.
3 If the light is not on, press .
Software does not install
The following operating systems are supported:
• Windows 98/Me
• Windows 2000
• Windows XP
Solution 1
Check that your computer meets the minimum system requirements listed on the box.
Solution 2
1 Check the USB cable for any obvious damage.
2 Firmly plug the rectangular end of the USB cable into the USB port of the computer.
The USB port is marked with the USB symbol.
3 Firmly plug the square end of the USB cable into the back of the printer.
Solution 3
1 Turn off and then restart your computer.
2 Click Cancel on all New Hardware Found screens.
3 Insert the CD, and then follow the instructions on the computer screen to reinstall the software.
Troubleshooting
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