Appendix (recommended artifacts to include when producing forensic reports):
Unlike RAM (which clears when power is lost), an EEPROM retains data for years without power. In an Epson printer, it stores: eeprom dump epson patched
: A project dedicated to unpacking Epson's proprietary "CROM" compression used in firmware. epson_print_conf (GitHub) eeprom dump epson patched
Patching involves altering specific hex values within the dump to achieve a desired state: eeprom dump epson patched
# Serial if "serial_offset" in cfg: serial_raw = data[cfg["serial_offset"]:cfg["serial_offset"]+16] serial_str = serial_raw.split(b'\x00')[0].decode('ascii', errors='ignore') print(f"Serial number: serial_str")
A "patched" file is often a dump from a "clean" or "chipless" version of the same printer model.