WE HAVE CHANGED THE POWER SUPPLY AND THE PCU PWB LIKE IT SAYS AND IT STILL DOESN'T WORK AND THE CODE MEANS FULL WAVE SIGNAL NOT DETECTED WHAT THE HELL IS A WAVE SIGNAL?
-   Usually these machines are very specific with laser problems which I have had none. L8-01 just suddenly shows up with no other issues. Also wht do I have d=no display on ef1 unit. Just a very very faint L8-01.-   Guest
wave signal is for the laser unit. have you had any L6-10 codes in the history? sounds like you need a new laser. part number is dunt-7039ds11 but thats for a u.k. machine you would have to check for a u.s. m/c.
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