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Canon Scanner cold cathode light replacement.

Discussion in 'Hobby Electronics' started by [email protected], Apr 22, 2004.

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  1. Guest

    Hi all,


    I've got a Canon D660U flat bed scanner. The cold cathode light has
    dimmed and the scanner is reporting an error along the lines of
    needing more warm up time. Tried another PC - same problem. DC supply
    to scanner from wall is OK when plugged in.

    I assume that the lamp is failing. Have talked to Canon service agent
    and the unit is not repairable, can't get any part short of a
    replacement scanner.

    1. Does anyone know what the drive voltage for the lamp should be? So
    I can check that the lamp power supply is OK

    2. Is there a source for these lamps other than Canon? Although the
    colour temperature of the lamp could be an issue if there is no exact
    replacement.

    3. Should Canon still make parts available for this 2.5 year old
    scanner? (Yeah, I probably already know the answer here!)


    Thanks for any useful info.

    - Rob.
     
  2. Hi all,
    If it is very cheap it simply may be designed not to have this part
    replaceable.
     
  3. I bought a canon scanner a few months ago for $80 bucks. I will be
    stoked if it's still going in 2.5 years time. Cut your losses and buy
    a new one. Otherwise just **** with it till you can make it do
    something usefull.
     
  4. I know this probably isn't the answer you want to hear, but a new
    scanner is well under $100. For $150 you can get a scanner, colour
    copier and printer all in one. It wouldn't be worth anyones time to
    try and fix it. This is why Cannon wouldn't bother with parts or
    trying to service such a thing.
    I'd be very surprised if you could get parts for a low cost consumer
    computer product like this.

    Dave :)
     
  5. amstereo

    amstereo Guest

    300mm cold cathode from jaycar = $30 (if yours is the CC version and not
    lide)
    new scanner = $60 - $300
     
  6. Guest

    Thanks for the replies guys.

    The reason I want to give it a little more life is that it has a
    slide/transperancy scan function, it cost around $300 new. As far as
    the light source, I assumed it was CC but what is LIDE? (excuse my
    ignorance!)

    - Rob.
     
  7. Thanks for the replies guys.
    Uses an LED instead of cold cathode, quite cheap and very compact
     
  8. Andy Wood

    Andy Wood Guest

    I thought the film scan unit used a light source in the lid?
    Andy Wood
     
  9. Andy Wood
    Is this the one that is built into the lid, they just use a mirror or
    reflector
     
  10. Guest

    As far as I can see, the lid bit isn't the problem. The scanner won't
    get that far because it knows there is an issue with the CC light
    source, so the film part is useless as well.

    BTW it is CC and not LED. The CC and CC power supply looks very much
    like the Jaycar units, but they are longer. Maybe I should cut one of
    those down to size ;-).

    - Rob
     
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