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  1. #1

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    asking for parts info

    yes i know its a scanner question, however all i require is info on the correct Ac adapter to use for Canon 8800f.
    output voltage, output current,power rating, i have a large box of adapters and i need to correctly match the adapter to the scanner.
    anyone able to provide info, thanking you in advance
    regards

  2. #2

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    Hi Craig, I've just dived under my desk to check.
    My AC adapter is model no. K30286
    Input 100-240V 0.45A
    Output 32V 0.7A

    I couldn't see any indication of the polarity of the connector into the scanner.

    Good luck.

  3. #3

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    tokam, thanx for that info. I had forgotten all about this thread. After much research it seems that the power adapter is hard to come by.My Solution -buy another scanner
    i`m going to keep the 8800 and see if I can find a fix, either that our destroy it trying

  4. #4
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    There is nothing that looks like this on the adapter or near where it goes into the scanner?
    https://dlnmh9ip6v2uc.cloudfront.net...fc7d000000.png
    Truzi

  5. #5

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    no Truzi. I took the scanner to a technician, he just rolled his eyes and said'canon'..?
    There is an HP adapter with matching output and a 3 pin plug, though the plug has square fitting and the canon round.However I have found some connectors from inside an older computer that match the canon fitting.So perhaps there is a fix eventually.

  6. #6
    Truzi's Avatar
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    You certainly can splice any connector you need once you find the polarity.

    Perhaps tokam can take a VOM to his adapter to find the polarity, though the specs he posted do seem a bit hard to come by.
    Truzi

  7. #7

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    EE here. 32V is 32V. Any power supply with an output of 32V DC and a current rating of over 0.7A will work fine. Do what you need to to get the connector to fit. If it's one of the simple coaxial ones, you can get them at Digikey.com. No need to buy a new scanner unless you want to upgrade.

    eBay has several 32V supplies available at under $10: http://www.ebay.com/bhp/32v-power-supply

    OK, with a little more Googling, I have found that the Canon K30286 seems to be a dual output supply: 24V @ 0.5A and 32V @ 0.7A.
    The used/refurb places seem to be capitalizing on these supplies being hard to find, and offering them for sale with "price upon request".

    Not necessary at all. The solution is to buy both a 24V and a 32V supply. Each should be available on eBay at under $10 used. You want a "1A output, regulated switching supply". Connect the negative leads of both supplies together, now you have GND, +24 and +32. If you can get the owner (tokam?) of a working scanner to apply a meter to his power connector, you'll know which lead connects to which pin and you're off to the races.
    Last edited by Peter Simpson; 10-01-2013 at 11:25 AM. Click to view previous post history.

  8. #8

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    thank you peter.Yes i have seen the supplies you mention on ebay. I will try your solution, even though i am not the sharpest tool in the box when it comes to power i can work out how your solution is supposed to work. There is another thread concerning this problem on flickr, some guys have listed the polarity, though there is some confusion over the correct numbers so i may message tokam.I have actually brought another scanner[8400] which is working fine, would still like to get a 'win' on the 8800f.If it all works out i will post your fix to flickr as well.

  9. #9

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    The trick with figuring out the connector is to be methodical. Take the negative lead of the meter and place it in the first contact. Next, use the red lead to measure the voltage on the other two contacts in turn. You will get two readings -- if they are 24 and 32, you are done, and the contact with the black lead is GND. If the voltages are something else, move the black lead to the next contact and repeat the above procedure. You'll only have to do it a maximum of 3 times :-)

  10. #10

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    I just pulled the plug from scanner to check polarity and its not going to be that simple. Canon, (Bless 'em!!!), have use a very proprietory looking three pin flat connector.
    See attached.

    Click image for larger version. 

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    Click image for larger version. 

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