Epson RC+ 7.0 Manual page 21

The aim of the adjustment is:
If the required conveying speed is achieved at a controller position of 80 %, the conveying
speed must always increase when a weight plate is removed.
Part Feeding 7.0 Hopper & Hopper Controller Rev.5
Note that the number of spring assemblies varies from spring
NOTE

to spring.
5. Starting
15