The USB ports all seem to work correctly otherwise. Any files sent to the printer via USB disappear into the nevernever with no error message. Would this be affected by the Serial Port having no driver? I have also totally failed to install this printer through a USB port, despite having got drivers from HP. This printer used to work, but has suddenly stopped, and reinstalling it has no effect. Everything seems to work alright on the computer, apart from an old (HP 710C DeskJet) printer attached to a printer port (LPT1:). One!), and I don't know what the PCI serial port does.
My Device Manager still shows the PCI Serial Port with no driver. However, I have run the most likeliest of them, to no effect. The rest gave no indication of containing a PCI Serial Port driver. I looked at the site you supplied - it gave 15 driver files, some of which I eliminated as they were not my operating system. If your driver isn't working, use the driver having the same OEM with the your laptop/desktop brand name. If you are looking for an update, pickup the latest one. With the different devices, they can have the same driver, it's because they all use the same chip manufacturer. Why do i see many drivers? Below is a list of drivers that may be suitable for your device.
