What (if anything) is actually connected to the computer Any other cables besides keyboard and mouse. Windows now says Printer A is on USB003 instead of its original USB001. If the printer was moved to a different physical USB port, this would generate a new identifier in Windows i.e. What you should have done was fully remove the printer driver WHILE the printer was attached, and then reinstalled the printer driver cleanly.įor label and receipt printers like Zebra and Epson especially. The Prolific chipset is entirely unrelated to your USB printer. It will not show up in the device manager if the Serial Port is disabled in the bios. It has an internal PL2303 conversion chip that runs your serial port off the USB bus. Prolific Usb To Serial Comm Port Serial Port Off
I think it is still causing the issue with the receipt printer but if I uninstall it from Device Manager, it just comes back after restarting. The only other things connected to the PC is a wireless km and an HDMI adapter for the monitor.
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