1. The products printed on copy paper have Hong Kong version on site, as well as text, lines and pictures. Such as: Express mail envelope, wine box, cigarette box outer packaging (bar box) and other printed products of the postal department. The color sequence of the printing is best to print text, lines, and pictures first, and then put the full page on the machine to print. , This can prevent the phenomenon that the paper collides with each other due to the thick copy paper and the paper collides with each other and the back side is dirty.
2. Put the dark colors on the front and print on the back, because the dark colors have strong hiding power and strong adhesion, and they are printed first, which is convenient for overprinting accurately; the light colors have weak hiding power. It is not easy to observe the slight running of the rules when printing on the back, and the effect of overprinting is much better.
3. Often in a printed product, there are half-color four-color electrical points, and successive adjustments of pictures, characters, and lines. The four-color electrical points should be printed first, which is conducive to accurate overprinting and reduces the impact of paper expansion. Then print the pictures, words, and lines one after another. In the arrangement of the printing color sequence, it is necessary to identify the priority. The first is difficult and then the easier is more appropriate.
4. If the weather is hot, when the copy paper is printed in a single color, when the paper encounters uneven water content, wrinkles and unevenness, poor paper surface strength, etc., it can also print a blank line of water first. Deal with the phenomenon.