For most technologies, inkjet films need to have high density. To achieve the needed density, much higher quantities of ink need to be printed on the film than on the paper. However, large quantity of ink will increase dot gain, and will distort the shape of the screen dots.

The first picture shows a halftone dot printed with small droplets, having small dot gain, but also low density; the second picture shows a halftone dot printed with big droplets, having good density but also high dot gain.

As Epson printers have a feature called VSD (Variable Droplet Size) which allows the RIPs to decide where to print bigger or smaller droplets. Thus a good rip can place smaller dots on the edges, decreasing the dot gain without affecting the density of the inner areas.

StudioRIP's Epson driver lets the user choose where to print bigger or smaller dots, so the driver can be fine tuned for the various media types. Typically a one pixel thin outline on the edges needs to be printed with a smaller droplet than the inner pixels, but other settings are also possible. The last picture shows a halftone dot printed with big droplets for the inner pixels but small droplets on the edges, having good density and low dot gain at the same time.