Introduction 1-3
Control Characters The following characters are reserved and used to control the printer. The
printer provides single-byte responses to the host of its status.
Char. Control Hex Dec Control Action
EOT ^D 0x04 04 End Of Text
Signals to the host device that the printer is
in idle mode and the print buffer is empty.
BS ^H 0x08 08 Backspace
Removes the previous character in the print
buffer.
HT ^I 0x09 09 Horizontal Tab
Advances to the next tab position (from the
following list) or to the beginning of the next
line: 5, 9, 13, 17, 21, 25, 29, 33, 37.
LF ^J 0x0A 10 Line Feed
Advances to beginning of next line.
VT ^K 0x0B 11 Vertical Tab
Advances 5 lines.
FF ^L 0x0C 12 Form Feed
Advances 10 lines.
CR ^M 0x0D 13 Carriage Return
Advances to beginning of next line.
SO ^N 0x0E 14 Shift Out
Switches to 36-column print mode
SI ^O 0x0F 15 Shift In
Switches to 57-column print mode.