Question about Samsung OKIDATA - OKI Microline 590 Printer

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Microline 590 Power Supply

I have several Microline 590 Printers and each one has a bad power supply caused by a spike. It appears that the parts that are bad are on the vert. board. Board location PC101 & PC 102, Is there a dealler that I can get these parts from.

Patrick
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  • Patrick Patterson
    Patrick Patterson Aug 19, 2008

    I Have tried finding the parts to no avail. the part number is T 2D on the first line and P521 on the second line. This part looks like a 4 pin IC but I don't think it is. Just a gut feeling but if I don't follow that feeling it usually bites me in the ***. The device looks white with 2 pins on each side and one of those sides is beveled.

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  • Samsung Master
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Oki printers are about bullet-proof and I once maintained them.
I'm not sure that your failures were all caused by spikes unless they were all plugged in during a surge.
These aren't new anymore and their failures may be related to electrolytic capacitors simply having decayed.
Already some years ago, I found several instances of this.

The meter I used (and still do now and then) was made by an insturment manufacturer named Tenma and has been very useful over many years although the price has gone up some since I bought mine, the $209 is still not bad for its capabilities and the dual display saves time if one needs to measure DF and this is critical in your case.

I see you are in the electronic service business so you may already have one available.

If not, take a look at this one:

http://www.mcmconnect.com/tenma/product/72-960/LCR-%20Capacitance%20Meters

Posted on Aug 19, 2008

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  • Master
  • 4,234 Answers

Do you know what actual parts are bad? You might have better luck trying to repair the boards.

Dan

Posted on Aug 19, 2008

  • ABRsvcs Aug 19, 2008

    I think the parts you are describing are opto-isolators. It is possible, but unlikely that these are the problem. I'll check around a bit and update this tomorrow.



    Dan

  • ABRsvcs Aug 19, 2008

    Since we have effectively resolved this in the other thread, would you mind rating this at least a helpful. Thanks,

    Dan

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