Yes, a scanner must be properly connected and powered on in order to work correctly. Most desktop scanners require an active USB connection to a computer, while mobile scanners may require either an active USB connection to a computer or power from an outlet if they are corded, or a chargeable battery if they are cordless. Some models may also require additional software installation in order to function.
Before connecting the scanner, first make sure that the scanner model is compatible with your operating system. Once the scanner is powered on, check the manufacturer’s user manual for instructions on how to connect it to your computer. Generally speaking, most scanners will require you to connect one end of the USB cable to the scanner and the other end of the cable to the computer, before powering on the scanner. If all of the proper connections have been established, then the scanner should be ready to use.
If the scanner does not power on or does not respond when connected to the computer, then there may be an issue with the power supply or connections. Try disconnecting and reconnecting the USB cable to ensure that it is properly connected, or try using a different USB port on the computer if available. If this does not solve the problem, then it is possible that the scanner may be faulty. Make sure to check the manufacturer’s warranty if applicable, as some brands may offer free replacements or repairs in such cases. If a spare power supply is available, then try connecting the scanner to a different power source.
If the scanner fails to show up on the computer, then it is likely that the proper software drivers have not been installed. Again, consult the manufacturer’s user manual for instructions on installing the necessary software. Once the necessary software is installed, then the scanner should be able to communicate with the computer.
In summary, a scanner must be properly connected and powered on in order to operate correctly. Make sure to check the connections and power source of the scanner before attempting to use it. Ensure that the scanner model is compatible with your operating system, and install any required software for the scanner to communicate with the computer. With the right connections and proper setup, the scanner should be ready to go.