I am looking for help. The ctp is Kodak Magnus 400E with LDA head. There was initially a problem with laser 10. It could not be calibrated to the requested power. The laser is changed to one of the spare diodes and there is now no problem. But it started causing vertical lines with laser 11. The plates are negative so the laser is ON. Laser 11 is calibrated to 260mW without a problem and no problem is seen in the laser monitor program. I found out that laser 11 causes the vertical lines problem. All settings and tests are correct and the oil felts on the V groove are oiled according to the spec. Now the ctp works but with the diodes from 12 to 23 on half exposure speed.
What could be the problem? I am lack of ideas? Something causes laser 11 to start exposure earlier or later than the other diodes. It is on all separations.
Best Regards!
What could be the problem? I am lack of ideas? Something causes laser 11 to start exposure earlier or later than the other diodes. It is on all separations.
Best Regards!
773)545-7700
