: These are "unofficial" programs usually sourced from third-party technical sites like rather than Epson's consumer support page head alignment
The Adjustment Program (often called the "AdjProg" or "Service Tool") is proprietary software designed by Epson for authorized service centers. Unlike the standard driver or the consumer-level "Maintenance" tab, this program interfaces directly with the printer's firmware and EEPROM (Electrically Erasable Programmable Read-Only Memory).
: Includes diagnostic tools such as the CR (Carriage) Encoder check , PF (Paper Feed) Encoder check , and Ink Selector check to troubleshoot mechanical issues. Important Considerations