General Question

rexpresso's avatar

Why do image scanners take a while to start doing their work?

Asked by rexpresso (922points) September 2nd, 2010

Yeah… when I press scan it takes a few tens of seconds before the scanning head starts moving. I wonder why that is. If it was the printer, I’d still forgive it because of the buffer possibility. But the scanner? What’s the issue?

By the way, this is an HP Scanjet 3300c under Mac OS X, but I had this same issue when scanning on Windows, as far as I remember.

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8 Answers

robmandu's avatar

It’s warming up the lamp. You want your first scan to look as good as the last.

Oh, the joys you can embark upon when working with color correction.

camertron's avatar

Yep. Lamp warming. Can get ya every time. Good answer, @robmandu.

rexpresso's avatar

Thanks guys. But does it need to warm the lamp every single pass?

camertron's avatar

Well, I don’t think it has to warm up the lamp every time. Does yours do that? How long in between scans are you waiting?

rexpresso's avatar

If I start another scan right after the first finishes, it still takes a load of time. It kills productivity bah..

camertron's avatar

Hmmm that’s kinda weird. I don’t think mine at home does that. Is your scanner an older model?

rexpresso's avatar

It’s got some 10 years maybe, and I just started using it again… didn’t feel it as slow back then. But anyway, doesn’t matter much… will use for just a few scans and then store it back again… was mostly curious. Thanks :)

camertron's avatar

No problem @rexpresso. I’m really no expert anyway, just a programmer. I’d imagine that the age of your scanner is playing a role in its glacial warm-up time, but who really knows. Maybe it’s time to buy a new one?

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