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220V Computer and 120V USB Printer


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#1
hurst58

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My computer is not recongizing my printer. Could it be because of different voltage even though i'm using a converter or possibly because they were purchased in different countries? Is USB cable standard in every country?
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#2
Neil Jones

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The voltage isn't a problem though I suppose I should state here that the adaptors you can buy that convert voltages from one to another can be highly dangerous if you're not careful. The country of origin isn't a problem - how many times have you bought something that was made in China?

Try standard printer fixes - uninstall the software, restart the computer, reinstall and plug the printer in when it asks you to.
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#3
dji

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Which printer?
Does it work when powered on? Some LED indicator on it, perhaps some sound of moving head?
Did you try it on different USB ports?
Did you check it's USB cable with some other USB device (if any)?
Can you try it on another computer (if any around)?
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#4
PedroDaGR8

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Im curious is the country you are in120V and the computer was bought in a country that uses 240V? If so then most computers have a switch on the back to run it at 120V mode or 240V mode, if it is a more modern computer the switch maybe automated if so it will be written on the label 120~240V. It seems rare to me to have 240V only PSUs because there are pretty much no 120V PSUs.

On top of that, most converters don't change the frequency which can cause system instability. If I remember correctly 120V runs at 60Hz and 240V runs at 50Hz. This can cause more problems.

That being said, if the converter is on the printer, see if the printer starts up. When you push the power button, do the lights come on do you hear the head moving aroudn etc. as it warms up. If not, the problem is with the printer.
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