Common faults and solutions common to current CTP machines are as follows:
First, the version of the image is not enough pixels
Reason: The file was processed and the publication was not found. Handling: The method of reprocessing the file to avoid recurrence of this situation: at the time of publication, the same order can be used to first release a version of the sample (should be carefully drafted), and no problem can be published after proofreading. If there is any problem, you need to report it to the supervisor in time and change the documents.
Second, the layout is not clean
Cause: CTP exposure energy is not enough. The visual effect is affected by the bottom of the layout. If you don't look carefully, you may not see it (you can't see the dots with the expander). The way to avoid this happening again: use the eraser pen to eliminate it at the edge of the plate. After wiping it, there is a sharp contrast. Treatment: Increase CTP exposure energy.
Similar problem handling: the layout is not clean, caused by a variety of problems, the following summarizes the following:
1, the speed of the printing machine: in the case of CTP energy standards, the version has a blue bottom. Adjustable wiper speed.
2, the development temperature in the case of CTP energy standards, the version has a blue bottom. Increase the development temperature if the speed cannot be adjusted (if the temperature is raised, the dots will be diluted, and the speed can be adjusted)
3, the punching machine barbing pressure This method is rarely used, in the case of the above 1-2 are invalid, the bar pressure can be properly adjusted. (Note: The sticks are damaged in the case of the brush version, and the hair stick hair falling off and shortening will affect the effect of the punch.)
Third, the printing machine has dirty spots
Cause: The plate has a dirty spot (the replenishing solution cannot be pumped)
Handling: Check if the version of the glue stick is dirty and wipe it clean. In the plate machine operation to supplement the development, directly pump some development to add or remove some of the old development to add some new developer. (If the development is used too long, you should consider replacing the development, replacing the care, cleaning the machine)
Ways to avoid this happening again: Before each publication, you must use the scrap version several times. Check if the replenishing solution is pumped up. Wipe the glue stick with a sponge and wet the water.
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