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In last week's blog post, I mentioned a couple of scenarios where someone might need to print where there was no AC power (and was using the iPad with ePrint as a long-lasting device for printing documents). But I didn't show you how to make the whole thing work. I put together video showing how I set up a completely AC-free printing environment with a pair of battery-powered printers.

You might think that's all there is to it – but it's not quite that easy. True, one of the printers in the video – the OfficeJet H470 – has WiFi. But it can only act as a client. If I were using a MacBook, this wouldn't be a problem, as the Mac can set up an ad hoc network. But the iPad can't do that. The iPad also can't print via Bluetooth (even with ePrint – the folks there told me they can't access the BT radio for printing). So watch the video to see my Rube Goldberg solution:

httpv://www.youtube.com/watch?v=NwWkWDaSZV4

The JetDirect device I mentioned is listed here. So whether you're printing at a convention in a large hall away from power, or in an emergency situation, or maybe printing name labels in a park for a family reunion, there are ways to generate printouts even when there's no AC around.

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