How to output normal knowledge of prepress design

How to ensure normal output?

1. Guarantee that there is no typo is the minimum, proofread proofing can prevent document errors.

2. To take care of the trouble caused by trapping, it is necessary to take this into account from the time of design to prevent problems.

3. Use the Postscript printer output test. Generally speaking, this step will not cause an error. Your file will have no problem, because the imagesetter also outputs the Postscript format.
What does the output company do?

It uses an imagesetter to output four black-and-white films, corresponding to four colors of cyan, magenta, yellow, and black, and becomes negative after washing. A negative plate is used to make a printing plate and finally printed on a machine. Each paper passes through at least four groups to obtain a four-color mixed color, ie, a true color print is obtained.