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MFD error message No frame done 42023


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I have been getting this error for months now, Error 42023 Exposure system Paper Top error No Paper top signal.

I have replaced the exposure deck,lamp house DMD board and linear encoder from a spare machine but can't cure this irritating error.

Can anyone help. See attached images


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does the new error appear  when you changed the dmd sensor?  check first the distance between the encoder bar and the dmd sensor.  check if the bar doesnot has damages lines.

when you don make the correct adjust *distance.   There are two posibilities: the sensor is far form the bar or this is very close and make contact with the bar causing damage to this.

good look!

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