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vj1204 heaters

Discussion in 'Mutoh' started by printimage, Mar 11, 2018.

  1. printimage

    printimage Member

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    Jan 27, 2011
    barbados
    I have a vj 1204 and when i send a job it say warming up but it doesn't start printing . I would have to start it by pressing the menu key and enter. What can cause this and how to fix it?
     
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  2. Terry01

    Terry01 Member

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    Jun 14, 2016
    new zealand
    Are you allowing time for the heaters to reach temperature?? are the heaters actually working??
     
    • Agree Agree x 1
  3. printimage

    printimage Member

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    Jan 27, 2011
    barbados
    Yes i can feel the heat when i touch them, sometimes i leave it for 20 mins or more and it still don't start. Before it wouldn't take so long to start printing .
     
  4. VanderJ

    VanderJ Merchant Member - Printer Parts and Sevice

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    Aug 2, 2011
    Denver, CO
    Your thermistors are probably failing. They tell the printer when the heaters are up to the proper temperature. If they fail, they either give an error or just never heat up to the proper temp. You would need to replace them if they are bad. Also, if you are in a very cold environment, that could cause the same issue.
     
  5. printimage

    printimage Member

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    Jan 27, 2011
    barbados
    HI How do i know if it is failing? Can i test them? I am in AC but it use to work before. Do you have a part number ?
     
  6. v0y4ger

    v0y4ger Member

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    Apr 27, 2014
    West Midlands, UK
    Have you tried running the test print?

    If that works it might be worth trying a different print profile on the rip or checking the heater temperature on the profile you're using.

    If none of these work ring "time2Maintain" Tim is a mobile Mutoh genuis and will pop and see you for a reasonable fee
     
  7. bob

    bob Major Contributor

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    Nov 4, 2005
    earth
    Invest ~$10.00 in an infrared thermometer. Point it at the platen in various places. It will tell you what the temperature actually is. Better than a laying on of hands that, at most, will tell you that it's warmer than ambient.
     
  8. v0y4ger

    v0y4ger Member

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    Apr 27, 2014
    West Midlands, UK
    I wish I'd thought of this, brill idea, you can use the same little tool used to post heat wrap :D
     
  9. VanderJ

    VanderJ Merchant Member - Printer Parts and Sevice

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    Aug 2, 2011
    Denver, CO
    You can test the resistance (OHMS) of the thermistors and hold them between your fingers. The resistance should go up as your finger warms the metal. A better way, as stated above, is to use the infrared thermometer and read the temps of the heaters. If they get up to the proper temperature and your machine still doesn't start to print, the thermistors must be bad. If they never get up to temp, the heaters or the relays are bad. When measuring the temps, make sure you know that there are two heaters and thermistors per platen so one side may heat while the other does not.
     
  10. printimage

    printimage Member

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    Jan 27, 2011
    barbados
    HI Okay i will test it, i was printing a job and this is how it came out with like different colours in lines. Can this be the heaters at a high temperature?
     

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