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Old 02-28-2008, 01:52 PM   #1
Michael Rowley
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Default How is a scanner powered?

I am re-commissioning my scanner, which I haven't used for sometime, but I'm faced with one difficulty: which of several transformers is appropriate? I have one with a 16 V d.c. output, one with 9 V a.c., and several with 9 V or 10 V d.c. Any experts out there?

   
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Old 02-28-2008, 02:19 PM   #2
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I am re-commissioning my scanner, which I haven't used for sometime, but I'm faced with one difficulty: which of several transformers is appropriate? I have one with a 16 V d.c. output, one with 9 V a.c., and several with 9 V or 10 V d.c. Any experts out there?
It would probably be specific to the brand and model.

Are the electrical requirements mentioned in the booklet or on the body of the scanner?

I can say this is often a vexing problem; all the darned “bricks” tend to look alike, and too many of them have identical fittings. I try to label them when I first get a new gadget, but too often forget.

   
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Old 02-28-2008, 02:42 PM   #3
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It would help to know the make and model -- then I can do some research.

   
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Old 02-28-2008, 03:06 PM   #4
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KT:

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It would probably be specific to the brand and model
It's an SnapScan e50 made (or badged) by Agfa-Gevaert A.G. a few years ago. All scanners work on the same principle, and their electrical requirements are, I imagine, dependent mainly on the lamps, which shouldn't need a d.c. supply, but I don't know about the detectors. All scanners will work on the same principle nowadays.

   
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Old 02-28-2008, 03:09 PM   #5
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Hugh:

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It would help to know the make and model
Agfa SnapScan e50.

   
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Old 02-29-2008, 05:59 AM   #6
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Would this help?

http://www.theusermanualsite.com/ex/.../idThread/7813

   
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Old 02-29-2008, 06:08 AM   #7
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What an interesting place that is!

   
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Old 02-29-2008, 06:47 AM   #8
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Would this help?
Thanks, Steve! I've now got the manual, but unfortunately it does not give the output of the transformer; but describing the lamp as a cold-cathode lamp helps indirectly, as I've got other devices that use that kind of lamp, & fortunately they still have their transformers attached.

   
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Old 02-29-2008, 09:27 AM   #9
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All scanners work on the same principle, and their electrical requirements are, I imagine, dependent mainly on the lamps, which shouldn't need a d.c. supply, but I don't know about the detectors. All scanners will work on the same principle nowadays.
I have three scanners and none of them is brick powered. One (a Canon) uses USB bus power; one (an old Lino-Hell) plugs into a standard 120 VAC outlet. Same with my Nikon slide scanner.

I guess if I could only find out by experimenting, I'd start with the lowest voltage DC brick and see if that works, then work up from there.

It annoys me that most of those bricks are made by third-party suppliers and don't even have the scanner manufacturer's name on them.

   
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Old 02-29-2008, 10:14 AM   #10
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...
I can say this is often a vexing problem; all the darned “bricks” tend to look alike, and too many of them have identical fittings. I try to label them when I first get a new gadget, but too often forget.
Some of the "bricks" are labeled with the output in volts and milliamperes, but often the device is not marked.

Labeling the device and the "brick" when installing the newly purchased device is the only safe procedure. There are bricks with a variety of voltage and plug outputs, but that only helps if the requirements of the target device is known. I have a collection of these bricks for which the original use is unknown to me.

My wife has a gadget for which we bought a 110 volt "brick" at Radio Shack to power it, since her device was originally supplied with a "brick" for 220 volts.
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