Epson GT-6500 EN - Manual (Page 107)

ESC G Start scanning
Format: B1 B2 B3 B4 B5
Command:ASCII: ESC G
Decimal: 27 71
Hexadecimal: 1B 47
Parameter: (none)
Handshaking:
The handshaking procedures are different for the monochrome mode,
color page sequence mode, color line sequence, and color byte
sequence mode. See Chapter 2 for more details on handshaking.
Monochrome mode (one time scanning)
Monochrome image data is sent as a page. When a dropout color is
specified, the color flag of the status byte indicates the specified
dropout color.
1 ESC G command
2 Data block (image data for one block)
3 ACK code
4 Last data block (last line)
❏ Steps 2 and 3 should be repeated for the number of lines (minus
1) specified for the image, until the last data block is received.
❏ Do not send an ACK code after the last data block.
Color page sequence mode (three pass scanning)
Command Reference 3-13