Epson 8900 Series - Manual (Page 162)

Epson FX Printer Emulation Mode 8-10
Select Printer
Control character: DC1
Hexadecimal:
11
This command reselects the printer after it has received a Deselect
command, unless the printer has been placed offline via the control
panel On Line switch.
Deselect Printer
Control character: DC3
Hexadecimal:
13
This command sets the printer to its deselected state until it receives
a Select Printer command from the host. After the printer has received
this command, it cannot be placed online via the control panel On
Line switch.
Sound Bell
Control character: BEL
Hexadecimal:
07
This command causes the printer to sound a short tone.
Cancel Line
Control character: CAN
Hexadecimal:
18
This command removes all characters except control characters from
the current print buffer contents.
Delete Character
Control character: DEL
Hexadecimal:
7F
This command removes the last text character from the current print
buffer contents, but does not affect any control character.