Will there be any problems if I have it plugged into 2 computers at the same time? I have my desktop PC (winxp pro) connected to my mfc printer via the old-school LPT port. Meanwhile, the printer also has a USB port. So if I also plug in my mom's laptop (winxp home) into the printer via usb, and start printing, could there be any issues? Or is it entirely safe? Thanks!
or you could connect both comps together to make a mini network & setup 1 comp as a mini print server (the print server will spool print jobs for the other box) or connect both boxes to a switch and connect the printer directly to the switch and select the IP of the printer to print to
Many printers will disable the parallel port when the USB port is connected so your mileage may vary a bit depending on your model of printer.
sorry to dig this up. I recently found myself doing this. I used a printer switch. You can use it one a time and not the same time.