First you will need a wireless printer server
D-Link Wireless USB Print Server 802.11G Single Port
D-Link Wireless 108Mbps 4-port USB Print Server
Read the User Manual First that came with the Printer Server before install the Server
Connect the printer server to one of the Ethernet port on the router
Connect printer to the USB port on the server using a normal USB printer cable
Install printer drivers on All computers on the network using the disc that came with the printer
Configure the wireless system on the router for “Infrastructure Mode”
You should be able to access the printer just like any other wireless device.
Find the icon for the printer you just installed.
Click the icon once and then select SHARE THIS PRINTER in the tasks pane on the left.
Now, right click the icon, select properties and go to the SHARING tab.
Click "Share Name," and then click "Okay."
On all computers within the network, open the control panel and click "Printers and Other
Hardware. Select "Add a Printer." Select "Printer Connection."
When prompted, select “Network Printer” instead of “Local Printer”
Find and select the printer you just installed and select it.