Epson Apex 20020 - Manual (Page 200)

Error code Message
Parallel port
901 ERROR PIN p
Serial port (RS-232C)
1101 control signal ALWAYS LOW
1101 control signal ALWAYS HIGH
1102 TIMEOUT ERROR
1103 VERIFY ERROR
Alternate serial port
1201 control signal ALWAYS LOW
1201 control signal ALWAYS HIGH
1202 TIMEOUT ERROR
1203 VERIFY ERROR
Dot-matrix printer
1401 status
Hard disk drives and controller
1701 SEEK ERROR
1702 WRITE ERROR
1703 READ ERROR
1704 HEAD ERROR
1705 ERROR DETECTION ERROR
1706 ERROR CORRECTION ERROR
Alternate parallel port
2101 ERROR PIN p