LPL 7700 Pro Alignment Issues?

Discussion in 'Enlarging' started by StephanJ, Apr 27, 2006.

  1. StephanJ

    StephanJ Member

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    Hi folks,

    I picked up an LPL 7700 Pro a while ago in anticipation of building a darkroom. Since the latter has yet to happen I've not had a chance to try it out. However, I've had a tinker....

    It has a knob that you twist to lock the head at a particular height and I've noticed that doing this actually causes the head to tilt back a little - possibly a few degrees. This suggests that I will have to be wary of alignment issues and that a bit of stopping down is in order.

    I'm a relatively novice darkroom user so any advice or opinions either specific or general would be welcome.
     
  2. Jon Shiu

    Jon Shiu Subscriber

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    Hi, the head is not supposed to move when you lock down the height. If yours is moving several degrees, I think that there is possibly something that needs to be tightened up or is damaged. (I have 2 LPL670VCCE enlargers and neither of them do that.)

    Jon
     
  3. firecracker

    firecracker Member

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    Check to column and see if it's bent, curved, twisted, etc. If the head is okay, keep it and perhaps look for a replacement for the column.

    I'm not sure if this particular model has anyway to adjust and/or align once it goes out. I think it's a factory-aligned type. I have a similar model.
     
  4. StephanJ

    StephanJ Member

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    Thanks for the replies. Overall it's in excellent condition. I've had a look at the assembly. The column appear fine, and unfortunately I can't see anything that's adjustable.

    If I have to write it off it's no real loss as I bought it as part of a bundle with a CPE2, trays, graduates, tanks and so on.

    Stephan
     
  5. Dave Miller

    Dave Miller Member

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    Check the alignment with the head locked since this is the only way that you are going to use it.
     
  6. Sean

    Sean Admin Staff Member Admin

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    I had bad luck with mine as well. I could align it with a laser alignment tool, lower the head 1ft, raise the head 1ft, test the alignment again and it would be off. I wrestled with it for a while and couldn't get anywhere. While I was deciding what to do next I came across a used Durst Pictocrom which I believe uses the durst 1200 chassy? Anyway the Durst is a rock, I aligned it 6 months ago and it's still spot on. Since then I've decided to use the lpl for paper flashing and other jobs.
     
  7. StephanJ

    StephanJ Member

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    Of course Dave, thanks. That's a good observation that I feel a little daft for not having made.
     
    Last edited by a moderator: Apr 28, 2006
  8. Jon Shiu

    Jon Shiu Subscriber

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    tighten and then

    Yes, and then you could shim the easel, if necessary.

    Jon
     
  9. Ronald Moravec

    Ronald Moravec Member

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    Never buy an enlarger that can not be adjusted is the lesson.