Power off printer, then plug in usb cable to prevent damage??

Posted on 2006-05-10
Last Modified: 2010-04-12
Why does printer setup tell me to turn off my printer before pluging in the usb cable in order to prevent damage. I just want to understand. Thank You.
Question by:amdana1
    LVL 69

    Accepted Solution

    If the printer is powered on, there is a chance there will be a voltage surge when you connect it to the USB port, which could permanently damage it.

    Author Comment

    Thank You.

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