You can use any router to do this if the machine that the printer is connected to is running OS X, using Printer Sharing. Check your Help Menu. I'm not sure about wireless with OS 9. Works fine with other machines running OS X.
From Help;
Sharing your USB printer with Mac OS 9 computers
If you share a USB printer connected to your computer by using Printer Sharing in Sharing preferences, computers using Mac OS 9 cannot connect to the printer. However, you can use the USB Printer Sharing control panel in Mac OS 9 to share the printer with Mac OS 9 computers.
Open the Mac OS 9 System Folder used by the Classic environment.
Open the Control Panels folder and double-click USB Printer Sharing. The Classic environment starts (if it isn't already started).
If necessary, click Start/Stop in the control panel, then click the Start button.
Click My Printers and select the Share checkbox next to the name of your USB printer.
Note: If you turn off printer sharing in Mac OS X, you can still use the USB Printer Sharing control panel in the Classic environment to share printers.
For help using Mac OS 9 USB Printer Sharing, look in the Mac OS 9 version of Mac Help. With a Mac OS 9 application open, choose Chooser from the Mac OS 9 Apple menu, then choose Mac Help from the Help menu.