To prevent Banding, it's essential that the Gradient file be managed by professional software like Adobe Photoshop, rather than by the print shop’s RIP. This allows the designer full control over the color conversion. Banding typically indicates a color management error in Prepress.
The main technique for resolving Banding is adding slight Gaussian Blur or Noise or Dithering to the gradient. This breaks up the Band lines and ensures a smoother color transition in the Halftones. Designers must save Gradient files in high color depth formats (like TIFF or PSD) to ensure sufficient color information for these techniques.