Epson A794-D100 User Manual
Page 131
A794 Owner’s Guide
Chapter 6: Programming Information
March 1999
125
Erase All Flash Contents Except Boot Sector
Causes the entire flash memory to be erased.
The printer returns ACK if the command is successful; NAK if it is unsuccessful.
ASCII
GS SO
Hexadecimal
1D 0E
Decimal
29 14
Exceptions
Available only in download mode.
Return Main Program Flash CRC
Returns the CRC calculated over the flash firmware code space. The format of the
response is ACK <low byte> <high byte>.
ASCII
GS SI
Hexadecimal
1D 0F
Decimal
29 15
Erase Selected Flash Sector
Erases the previously selected sector. The printer transmits ACK when the sector has
been erased. If the previous sector is not successfully erased, or if no sector was selected,
the printer transmits NAK.
ASCII
GS DLE n
Hexadecimal
1D 10 n
Decimal
29 16 n
Value and Range of n
0-2 =
256k bytes Flash
0-14 = 1M bytes Flash
0-30 = 2M bytes Flash
Exceptions
Available only in download mode.