I have found a workaround by connecting barcode scanner into a USB-hub and then connect the USB-hub to the computer. Have tried newly purchased barcode scanners and Older “used” barcode scanners that works on other computers, but the problem remains. I have tried to upgrade all the drivers available on and even (chipset drivers) but nothing has helped to resolve this issue I suspect that there is a Compatibility issue between barcode scanner and the USB controller card on the computers. It works fine until you restart the computer.Īfter restart can’t the computer detect the Barcode scanner correctly without re-appears as unknown device. Sometimes when switching USB port back and forth can I sometimes get the hand scanner to be recognized as a HID device or a Datalogic barcode scanner, When you connect the scanner to the USB port, Windows will try to install this as an HID, but it takes an unusually long time, about 7-8 seconds, to start up the device and install the drivers and comes up as unknown device in windows "devices and printers" And the hand scanner is not working. The brand and model of the barcode scanner is: I need help with Our Barcode Scanners that doesn’t work on our newly purchased computers from HP with Windows7 Pro 圆4 Operating Systems. Business PCs, Workstations and Point of Sale Systems.Printer Wireless, Networking & Internet.DesignJet, Large Format Printers & Digital Press.
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