Question about GTCO CalComp ScanPlus III 800T

4 Answers

Scanner will not power up

This problem came up before, and after I left the scanner turned off for a few days it fixed itself. This time, it powered down while I had it turned on for a couple of hours, and it won't come back up. I took the cover off the end close to the power plug and did a few rudimentary voltage tests. The switch and fuse are fine.


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  • pyaresquared Jan 14, 2009

    I have had a blown bulb before. When the bulb has blown, the paper drive mechanism still worked. This time the drive will not work. Would a bad capacitor(s) create a previously intermittent problem? Or would it just fail and be done with it?

    Are there any wide-format scanner repair shops in the Phoenix area since CalComp GTCO closed down? Repairing the power supply unit may be too much of a challenge for my limited electronic skills.

  • pyaresquared Jan 14, 2009

    Good wide format scanners cost several thousand $$--even used ones. I want to try to fix this one.

  • pyaresquared Jan 15, 2009

    I will take a look at the boards and capacitors. Thanks.

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Posted on Jan 14, 2009

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On the main board og the scanner there are white cables connected any 1 out them can be faulty that needs replacement.also check out for the bulged capacitor or leaked capacitor on the circuit board.

Posted on Jan 14, 2009

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Its just the faulty circuit of the scanner.the circuit is blown.and it needs to be checked with a meter to get the faulty capacitor.its a costly issue.as if its too old replacing the scanner is good choise.

Posted on Jan 14, 2009

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Test also the bulb, if the bulb has blown, then it is likely a fault on the board that powers the bulb with ac.

If the bulb is ok, you need to test the psu capacitors , and fix the power supply circuit, or if this is on a separate board, replace the board.

Also test power cord , and try a different AC socket.

Posted on Jan 14, 2009

  • Ginko
    Ginko Jan 14, 2009

    "When the bulb has blown, the paper drive mechanism still worked" :

    I know it , I told you : " if the bulb has blown, then it is likely a fault on the board that powers the bulb with ac"

    You have read only first three world from my post.

    Regarding the repair, it is better not to repair a scanner like this just anywhere.

    Call l Fred Bryant at GTCO : 480-443-2262 they will send you an onsite engineer from nearest repair point.

    Also ask information about getting a service contract.
    Repairs for this machine are expensive.

    Here is GTCO contact page:
    http://www.gtcocalcomp.com/supportscanne...

    Thanks


  • Ginko
    Ginko Jan 14, 2009

    Addon: regarding the bad capacitor, yes, the intermittent faults that at start you fix by unplugging, and then prevent unit from starting can be typical of a capacitior starting to fail, then failing completely on a power board.

    First test the main PSU, that is most likely, then test the inverter board that is powering up the lamp, a badly shorted inverter can cause shutdown.



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