Greg, one more behavior I would like to point out before I start... After I disconnected the HP LJ 6P USB from the MAC and brought it back to the PC and hooked it up there, I tried to print to it (in a shared environment) from the MAC). I set it up again on the MAC in System Preferences, Printers & Scan, clicked on the Windows icon, it found our workgroup, found my PC, found the Printer's Name, and I added it using the Gutenberg driver we worked on before.
When I tried to print a document from the MAC on the now shared HP LJ 6P, the printer image in the dock got a red number 1 banner, a yellow exclamation mark and jumped up and down. When I clicked on the printer, below two small icons (Pause and Settings) the document image and title were showing, with a progress bar (with an X and a redo arrow at the right) and below the progress bar, the text "Hold for Authentication". All this was greyed out. The HP LJ 6P made no attempt to print. All I could do is the click the X to remove it from the queue.
Two Questions:
1. Is this "Hold for Authentication" significant and do we need to deal with it before we do the driver replacement on the PC or will it take care of itself when I do the driver change on the PC?
2. Regarding the driver change on the PC, the place I got the Gutenberg driver for the MAC also has postscript enabled drivers for the PC? Same question for the USB adapter driver?
PS. Before I start working on the HP LJ 6P (delete it, re-add it, with new driver , etc.), do I have to change it from the shared environment it is is now, even though it does not function as I want it to?