Epson ES-1000C Reference Manual page 103

Contents of the ESC F (status) data block
Order of Data (in
byte hex)
1 02
2 xx
3 00
4 00
Note:
The numerical value of the byte counter consists of two bytes, and the
lower byte precedes the higher byte.
Contents Explanation
STX code Header: indicates the
beginning of the data block
Status Status byte: indicates the
status of the scanner
0 bytes Byte counter: indicates the
number of bytes of data (The
null value indicates that no
data follows)
Command Reference
3-9