If there is a post-press process, you pick up a sheet of paper and look at the light. If you are careful, you will find that one of the lines runs from the bite to the drag, but now it is printed as a diagonal line. You encounter a more discerning buyer's electronic supervision code, which may face deductions. If it is bad, the buyer may not receive the goods. At this point, you are in a hurry, go to the electronic supervision code of the printing workshop, ask the master, is the paper deformed, or the plate is deformed, the plate can be used CTP plate, the hole position also uses the cross pair Bit punch RFID, it should be very accurate! The master is right, the plate-making staff is not wrong, where is the problem at the end of the time, where is it?
We know that most CTP platesetters on the market today, whether thermal or UV, are based on the external drum design report, which bends and holds the plate in the closest way to the press. High-quality dots; but based on this external drum design, a linear offset in the X direction is generated when the full-line straight line is output from top to bottom, resulting in a straight line after the final exposure of the line to the printing plate. If you want to expose a rectangular KBA, but now it is exposed to a parallelogram, this deviation can be neglected for general paper prints, but for prints with higher quality requirements, this deviation may be very good for you. Big loss.
Figure 1: Rectangular Parallelogram
Figure 2: Exposure scan Plate results
For this parallelogram problem printing accessory, the CTP platemaking device must have the ability to compensate for this distortion so that the output plate produces a straight line up to the top.
ASK's R&D engineers knew this problem early, and developed the linear output spiral correction function early in the morning. The engineers seamlessly embedded this function into the device control through precise calculations. Konica Minolta , let the user achieve the perfect line when outputting the plate.
Figure 3: Linear output spiral correction function applied
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