Citizen Systems iDP-3551, iDP-3550 user manual Can

CAN

[Function]	Canceling the print data
[Code]	<18>H
[Outline]	This command clears the input buffer and print buffer. In the STX-EXT mode of the serial
	interface printer, the command clears the data in the data buffer and ends the STX-ETX
	mode.
DC3
[Function]	Setting the deselect mode
[Code]	<13>H
[Outline]	If the printer receives <DC3>, it will ignore the subsequent data. The Deselect mode is
	cancelled by <DC1>.
DC1
[Function]	Setting the select mode
[Code]	<11H>
[Outline]	If the printer receives this command, it will save the subsequent data in the input buffer.