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A USB printer cable is used to allow a computer to send commands to the printer. The computer must have the appropriate "Driver" software, which will allow it to send the correct commands over the cable. For very small printers, the USB cord is able to provide about five volts of power.

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10y ago
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14y ago

It's one way to connect a printer and computer together.

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Q: Why do you need a usb cable on a printer?
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It doesn't. IF you have a USB printer AND you have a monitor connected to your computer with a USB cable ANDthere are USB outlets on your monitor (The system I have in front of me is like that) THEN you COULD plug your printer USB into the Screen USB outlet.


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