Wireless Printer Is No Longer Working - Lexmark 13R0243 - X4875 USB 2.0/PictBridge/ 802.11g All-in-One Color Printer Scanner Copier Photo Network Manual

Check security keys
Make sure security keys are correct. For more information, see "Check your security keys" on page 106.
Move your computer and/or printer
Move the computer and/or printer closer to the wireless access point (wireless router). Although the possible distance
between devices in 802.11b or 802.11g networks is 300 feet, the effective range for optimal performance is generally
100–150 feet.
You can find the signal strength of the network on the network setup page. For information on how to print a setup
page, see "Printing a network setup page" on page 34.
Check MAC address
If your network uses MAC address filtering, provide the MAC address for the printer to your network. If you need
help finding the MAC address, see "Finding the MAC address" on page 33.

Wireless printer is no longer working

These are possible solutions. Try one or more of the following:
Check power
•
Make sure the printer power light is on. For more information, see "Power button is not lit" in the "Troubleshooting"
chapter.
•
Make sure the wireless access point (wireless router) is on.
Move your wireless access point (wireless router) to minimize interference
There may be temporary interference from other devices such as microwaves or other appliances, cordless phones,
baby monitors, and security system cameras. Make sure your wireless access point (wireless router) is not positioned
too closely to these devices.
Move your computer and/or printer
Move the computer and/or printer closer to the wireless access point (wireless router). Although the possible distance
between devices in 802.11b or 802.11g networks is 300 feet, the effective range for optimal performance is generally
100–150 feet.
You can find the signal strength of the network on the network setup page. For more information, see "Printing a
network setup page" in the "Networking" chapter.
Try adjusting external antennas
Generally, antennas work best if they are pointing straight up. You may find, however, that reception improves if you
experiment with different angles for your printer and/or wireless access point (wireless router) antennas.
Check network name
The network name, or SSID (Service Set Identifer) is a setting on a wireless device that allows devices to join the
same wireless network.
For more information, see "Checking your network name" for Windows or Mac in the "Wireless troubleshooting"
section.
Reboot the computer
Turn off and restart the computer.
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