The following are several common causes of errors in printing accuracy:
1. When making multi-color overprint (halftone printing) screens, the screens are dried at different temperatures, thereby causing errors in the printing accuracy.
2. The screen has low tension or overprint (halftone) screen tension.
3. Use a simple drying dryer and dry the screen unevenly.
4. The use of too old, unsturdy, and distorted mesh-plate making results in deviations in the printed image due to poor stability of the frame (these problems can be detected with a negative film).
5. When using multi-color overlay, the used net distance is inconsistent.
6. Squeegee deformation.
7. Affected by some factors caused by changes in the size of the substrate.