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Question Roland SP540i wont print after changing the DX4 Print heads

Discussion in 'Digital Printing' started by DanielC, Nov 15, 2019.

  1. DanielC

    DanielC New Member

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    Nov 8, 2019
    Melbourne Australia
    I recently bought 2 DX4 print heads and followed the instructions in the manual to fit them.
    However once fitted the heads do not print, it is as if they do not recieve a signal from the printer to print, they are filled with ink and when cleaning cycle runs the ink does come out, this noted as I left them for a while and I can see the catch bottle has ink in from the cleaning cycles.
    I cannot find a technician that is prepared to help me with out selling me a new printer saying that these old printers are not worth fixing, does any one know how I can test the heads, the ribbons or other parts to see if the heads are faulty or if it is some other electronic fault etc.
    I did not however write down the old head numbers before removing them from service so I cannot put them back in.
    Thanks, any help would be appreciated.
     
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  2. Rick Tennyson

    Rick Tennyson Member

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    Sep 14, 2019
    Mid-South
    fuses?
     
    Last edited: Nov 16, 2019
  3. Rick Tennyson

    Rick Tennyson Member

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    Sep 14, 2019
    Mid-South
    Did you remove the ac cord from the machine before removing anything?
     
  4. player

    player Major Contributor

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    Apr 24, 2006
    Toronto
    First thing I would check is the fuses on the main board.
     
  5. Alistair1

    Alistair1 New Member

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    Mar 6, 2019
    New Zealand
    Yes fuses are the likely culprit. And/or cables. If you have bent or broken a ribbon cable termination (very easily done) then this will cause the fuse to blow. Hopefully it has not taken out the main board.
     
  6. C5 Service&Repair

    C5 Service&Repair Member

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    Jan 14, 2018
    Omaha, NE
    Definitely fuses. Unfortunately they are soldiered on the mainboard on the SP.
     
  7. Creative Dept

    Creative Dept New Member

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    May 19, 2015
    Australia
    Hi Daniel,
    I'm having the same issue. Did you have any luck fixing the problem? I replaced the manifold on my H1 Blk / Cyan and had it printing but after running cleaning fluid through the lines & refilling inks this is what I'm getting via test print... its doing weird stuff, first test image is yesterday and second is this morning...
     

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