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  1. XC-540 Heater won't turn off. Help!

    Hi Joe, Got it sorted thankfully, you are correct - it was a faulty Solid State Relay (SSD) on the Heater Control Board which was permanently ON (under the front apron as you described). There are 3 SSD's on the Heater Control Board, I swapped the post-print heater with the print heater cables...

  3. XC-540 Heater won't turn off. Help!

    Hi, I've just noticed that the heater under the print platen on my XC-540 is permanently ON even when the secondary power is turned off. The machine is printing normally and the pre-heater and post-heater are operating normally. I would be very grateful of any advice please. I have contacted...
    • KT.
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    • Replies: 2
    • Forum: Roland
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