Printed four-color flat screen stack black black bite 23cm with two light colored bars, the machine is xl105, mechanic incapability, the final color change group printing, inspection is a group of black problems, it touches not find fault , seeking expert analysis!
Answer: 1. The pressure of 5 roots is OK? Then see if the pressure from the ink roller is too great.
2, personal feeling of mechanical pressure is not very professional, because he did not check the pressure of relying on the same version of the ink, and since it is a shallow bar should be a water stick it, hey, do not know where to analyze, who knows through the tap The principle of width and glue stick diameter to find which one is not?
3, light-colored ink bar is the water bar, check the water roller to see.
4. The horizontal bars are generally either ink bars or water bars. The reason for this is generally caused by the uneven roller pressure causing the roller to shake.
5, remove the bachelor, dry water printing, see if the tappers still?
6. The bar is one of the hardest to solve offset faults. It can only advise you. First, check all the pressure lines between the rollers. Second, check the bearing turbulence situation. Third, check the roller hardness changes. Such as pressure rods, impact rods. You don't have to worry about that.
7. Check the pressure of the ink roller, the surface condition of the ink roller, and try to make the water as small as possible during printing.