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DIY replacing head on arizona 250gt

Discussion in 'Flatbed Printers' started by somoflange, Sep 6, 2017.

  1. somoflange

    somoflange New Member

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    Jan 7, 2013
    Williston, VT USA
    Hey folks. I have an AZ 250GT. It's doing quite well except one magenta head has a large swath of clogged nozzles. I'm not sure if it's a clog or head failure. We replaced our other Magenta head a couple years ago.
    I'm looking for advice on a couple of things:
    1. should I replace the head with a new one, or try to remove, clean and replace the current one?
    2. Where would you go do purchase a replacement head?
    3. I know that I can set voltages, etc. without a service key using the registry. what I'm not clear on is the alignment procedure or what those voltages are supposed to be set to exactly.

    I'd appreciate any help!
    thanks!
     
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  2. ToTo

    ToTo New Member

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    Apr 15, 2015
    Switzerland
    I would suggest for the very first head replacement to get a experienced engineer and learn it by asking.
    If you have seen it once you know.
    It’s too much to explain by writing.
    For ordering i would suggest digiprintsupplies, if they still have. And the engineer is agree with.
    Océ doesn’t have stock anymore.
    But AZ 3xx printhead works also. In this case you leave voltages ect from old printhead.
    Mechanical adjustment is for vertical placement only. The rest is done using a common scanner and the scanner alignment tool (software)
     
  3. somoflange

    somoflange New Member

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    Jan 7, 2013
    Williston, VT USA
    Thanks. I have a friend who has done a head replacement before. Doesn't the 3xxx series use CA4 heads? My printer has CA3 heads. Are these interchangeable?
     
  4. ToTo

    ToTo New Member

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    Apr 15, 2015
    Switzerland
    If you have CA3, good for you. But CA4 works also, but with parameters of CA3.
     
  5. Pauly

    Pauly Member

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    Feb 14, 2016
    Melbourne
    apart from the voltages, you do need to align it.
    1, Print head angle.
    2, Alignment where you adjust the print head forwards and backwards.
    3, nozzle timing alignment, side to side adjustment. that's all done on the computer.

    I can't remember the procedures, but i wouldn't do it myself as i rather my tech come out and do it for me so i can continue to have my high quality prints.
     
  6. AlsEU

    AlsEU Member

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    Jul 16, 2014
    European Union
    For timing alignment special software and Epson scanner is required, for the voltage calibration service key is needed (if you leave the voltage from the old head, calibration could be difficult, as the drop size and flight path will be wrong). Some say, that it's possible to change the voltage by editing the register file manually, but playing with a register on the Windows computer is always dangerous...
     
  7. Pauly

    Pauly Member

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    Feb 14, 2016
    Melbourne
    I dont understand why you can't just get a service technician to do it for you. At least you know it's done properly.
     
  8. somoflange

    somoflange New Member

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    Jan 7, 2013
    Williston, VT USA
    OCE will not even talk about the 250gt anymore. So, I'd have to find an independent service tech, and I frankly don't know where to look. I'm still feeling pretty burned by Oce with their end of support on this machine. even if I could find a service key, I wonder if it would still be valid?
     
  9. Pauly

    Pauly Member

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    Feb 14, 2016
    Melbourne
    If they're not supporting it, have you asked for a service key? that way you can actually keep it alive.
     
  10. somoflange

    somoflange New Member

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    Jan 7, 2013
    Williston, VT USA
    That was the first thing I asked for when we heard they were discontinuing support. they said no. It looks to me like they don't want to keep it alive.
     
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