One of the most common reasons for using the SST is to perform initial ink charges or head cleaning cycles that are more aggressive than those available via the standard printer menu. Ver1.4.1 improved the reliability of these "Ink Charge" commands, reducing the likelihood of communication errors during critical maintenance cycles.
SSC Service Utility for Epson Stylus Printers - refill Ink Cartridges epson service support tool ver141 better
“Using an older tool voids the warranty more easily.” One of the most common reasons for using
Usability and Reliability