Question : Problem: Does anyone have a workaround for an old HP Laserjet 4L to work with a Linksys WPSM54G Print Server?

Here is the problem:

The HP Laserjet 4L  used to come with a male parallel connector that plugged into the parrallel port on a dekstop. I purchased a Paralled to USB connector, which when plugged into the desktop itself (Windows XP Pro), works fine. My problem is for the Linksys WPSM54G to print to the printer. When I use the installation disk it finds the printer as a HP Laserjet 4L...and I can even print a test page to the printer from the web setup page. I can't however printer a test page or printjob of any sort from the PC.
I have tried the folllowing:
1. Installed and configured the print server. The printer server is online and sees the printer.
2. I have tried installing the printer on the PC first, then plugged the usb cable into the printer server...no good.
3. I have downloaded current drivers from HP for the printer, and have checked for firmware updates from Linksys
4. I have configured the printer port on the printer as USB virtual ports, LPT1, and the print server address of 192.168.0.4. Neither worked.
5. I have tried disabling bidirectional printing, but that did not work.
Please...any help would be extremely appreciated.

Answer : Problem: Does anyone have a workaround for an old HP Laserjet 4L to work with a Linksys WPSM54G Print Server?

Just 2 different protocols to talk to the printserver. LPR dates back 20 years and is very well debugged by now. Raw aka Appsocket is much newer.